H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1 | /* assemble.c code generation for the Netwide Assembler |
| 2 | * |
| 3 | * The Netwide Assembler is copyright (C) 1996 Simon Tatham and |
| 4 | * Julian Hall. All rights reserved. The software is |
Beroset | 095e6a2 | 2007-12-29 09:44:23 -0500 | [diff] [blame] | 5 | * redistributable under the license given in the file "LICENSE" |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 6 | * distributed in the NASM archive. |
| 7 | * |
| 8 | * the actual codes (C syntax, i.e. octal): |
| 9 | * \0 - terminates the code. (Unless it's a literal of course.) |
| 10 | * \1, \2, \3 - that many literal bytes follow in the code stream |
| 11 | * \4, \6 - the POP/PUSH (respectively) codes for CS, DS, ES, SS |
| 12 | * (POP is never used for CS) depending on operand 0 |
| 13 | * \5, \7 - the second byte of POP/PUSH codes for FS, GS, depending |
| 14 | * on operand 0 |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 15 | * \10..\13 - a literal byte follows in the code stream, to be added |
| 16 | * to the register value of operand 0..3 |
| 17 | * \14..\17 - a signed byte immediate operand, from operand 0..3 |
| 18 | * \20..\23 - a byte immediate operand, from operand 0..3 |
| 19 | * \24..\27 - an unsigned byte immediate operand, from operand 0..3 |
| 20 | * \30..\33 - a word immediate operand, from operand 0..3 |
| 21 | * \34..\37 - select between \3[0-3] and \4[0-3] depending on 16/32 bit |
H. Peter Anvin | 3ba4677 | 2002-05-27 23:19:35 +0000 | [diff] [blame] | 22 | * assembly mode or the operand-size override on the operand |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 23 | * \40..\43 - a long immediate operand, from operand 0..3 |
| 24 | * \44..\47 - select between \3[0-3], \4[0-3] and \5[4-7] |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 25 | * depending on the address size of the instruction. |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 26 | * \50..\53 - a byte relative operand, from operand 0..3 |
| 27 | * \54..\57 - a qword immediate operand, from operand 0..3 |
| 28 | * \60..\63 - a word relative operand, from operand 0..3 |
| 29 | * \64..\67 - select between \6[0-3] and \7[0-3] depending on 16/32 bit |
H. Peter Anvin | 17799b4 | 2002-05-21 03:31:21 +0000 | [diff] [blame] | 30 | * assembly mode or the operand-size override on the operand |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 31 | * \70..\73 - a long relative operand, from operand 0..3 |
| 32 | * \74..\77 - a word constant, from the _segment_ part of operand 0..3 |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 33 | * \1ab - a ModRM, calculated on EA in operand a, with the spare |
| 34 | * field the register value of operand b. |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 35 | * \140..\143 - an immediate word or signed byte for operand 0..3 |
H. Peter Anvin | a30cc07 | 2007-11-18 21:55:26 -0800 | [diff] [blame] | 36 | * \144..\147 - or 2 (s-field) into opcode byte if operand 0..3 |
| 37 | * is a signed byte rather than a word. Opcode byte follows. |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 38 | * \150..\153 - an immediate dword or signed byte for operand 0..3 |
H. Peter Anvin | a30cc07 | 2007-11-18 21:55:26 -0800 | [diff] [blame] | 39 | * \154..\157 - or 2 (s-field) into opcode byte if operand 0..3 |
| 40 | * is a signed byte rather than a word. Opcode byte follows. |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 41 | * \160..\163 - this instruction uses DREX rather than REX, with the |
| 42 | * OC0 field set to 0, and the dest field taken from |
| 43 | * operand 0..3. |
| 44 | * \164..\167 - this instruction uses DREX rather than REX, with the |
| 45 | * OC0 field set to 1, and the dest field taken from |
| 46 | * operand 0..3. |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 47 | * \170 - encodes the literal byte 0. (Some compilers don't take |
| 48 | * kindly to a zero byte in the _middle_ of a compile time |
| 49 | * string constant, so I had to put this hack in.) |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 50 | * \171 - placement of DREX suffix in the absence of an EA |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 51 | * \2ab - a ModRM, calculated on EA in operand a, with the spare |
| 52 | * field equal to digit b. |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 53 | * \310 - indicates fixed 16-bit address size, i.e. optional 0x67. |
| 54 | * \311 - indicates fixed 32-bit address size, i.e. optional 0x67. |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 55 | * \312 - (disassembler only) marker on LOOP, LOOPxx instructions. |
H. Peter Anvin | ce2b397 | 2007-05-30 22:21:11 +0000 | [diff] [blame] | 56 | * \313 - indicates fixed 64-bit address size, 0x67 invalid. |
H. Peter Anvin | 2344010 | 2007-11-12 21:02:33 -0800 | [diff] [blame] | 57 | * \314 - (disassembler only) invalid with REX.B |
| 58 | * \315 - (disassembler only) invalid with REX.X |
| 59 | * \316 - (disassembler only) invalid with REX.R |
| 60 | * \317 - (disassembler only) invalid with REX.W |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 61 | * \320 - indicates fixed 16-bit operand size, i.e. optional 0x66. |
| 62 | * \321 - indicates fixed 32-bit operand size, i.e. optional 0x66. |
| 63 | * \322 - indicates that this instruction is only valid when the |
| 64 | * operand size is the default (instruction to disassembler, |
| 65 | * generates no code in the assembler) |
H. Peter Anvin | ce2b397 | 2007-05-30 22:21:11 +0000 | [diff] [blame] | 66 | * \323 - indicates fixed 64-bit operand size, REX on extensions only. |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 67 | * \324 - indicates 64-bit operand size requiring REX prefix. |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 68 | * \330 - a literal byte follows in the code stream, to be added |
| 69 | * to the condition code value of the instruction. |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 70 | * \331 - instruction not valid with REP prefix. Hint for |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 71 | * disassembler only; for SSE instructions. |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 72 | * \332 - REP prefix (0xF2 byte) used as opcode extension. |
| 73 | * \333 - REP prefix (0xF3 byte) used as opcode extension. |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 74 | * \334 - LOCK prefix used instead of REX.R |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 75 | * \335 - disassemble a rep (0xF3 byte) prefix as repe not rep. |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 76 | * \340 - reserve <operand 0> bytes of uninitialized storage. |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 77 | * Operand 0 had better be a segmentless constant. |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 78 | * \364 - operand-size prefix (0x66) not permitted |
| 79 | * \365 - address-size prefix (0x67) not permitted |
| 80 | * \366 - operand-size prefix (0x66) used as opcode extension |
| 81 | * \367 - address-size prefix (0x67) used as opcode extension |
H. Peter Anvin | 788e6c1 | 2002-04-30 21:02:01 +0000 | [diff] [blame] | 82 | * \370,\371,\372 - match only if operand 0 meets byte jump criteria. |
| 83 | * 370 is used for Jcc, 371 is used for JMP. |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 84 | * \373 - assemble 0x03 if bits==16, 0x05 if bits==32; |
| 85 | * used for conditional jump over longer jump |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 86 | */ |
| 87 | |
H. Peter Anvin | fe50195 | 2007-10-02 21:53:51 -0700 | [diff] [blame] | 88 | #include "compiler.h" |
| 89 | |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 90 | #include <stdio.h> |
| 91 | #include <string.h> |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 92 | #include <inttypes.h> |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 93 | |
| 94 | #include "nasm.h" |
H. Peter Anvin | 6768eb7 | 2002-04-30 20:52:26 +0000 | [diff] [blame] | 95 | #include "nasmlib.h" |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 96 | #include "assemble.h" |
| 97 | #include "insns.h" |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 98 | #include "preproc.h" |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 99 | #include "regflags.c" |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 100 | #include "regvals.c" |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 101 | |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 102 | typedef struct { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 103 | int sib_present; /* is a SIB byte necessary? */ |
| 104 | int bytes; /* # of bytes of offset needed */ |
| 105 | int size; /* lazy - this is sib+bytes+1 */ |
| 106 | uint8_t modrm, sib, rex, rip; /* the bytes themselves */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 107 | } ea; |
| 108 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 109 | static uint32_t cpu; /* cpu level received from nasm.c */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 110 | static efunc errfunc; |
| 111 | static struct ofmt *outfmt; |
H. Peter Anvin | 6768eb7 | 2002-04-30 20:52:26 +0000 | [diff] [blame] | 112 | static ListGen *list; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 113 | |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 114 | static int64_t calcsize(int32_t, int64_t, int, insn *, const char *); |
| 115 | static void gencode(int32_t, int64_t, int, insn *, const char *, int64_t); |
H. Peter Anvin | 3360d79 | 2007-09-11 04:16:57 +0000 | [diff] [blame] | 116 | static int matches(const struct itemplate *, insn *, int bits); |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 117 | static int32_t regflag(const operand *); |
| 118 | static int32_t regval(const operand *); |
| 119 | static int rexflags(int, int32_t, int); |
| 120 | static int op_rexflags(const operand *, int); |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 121 | static ea *process_ea(operand *, ea *, int, int, int, int32_t, int); |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 122 | static void add_asp(insn *, int); |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 123 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 124 | static int has_prefix(insn * ins, enum prefix_pos pos, enum prefixes prefix) |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 125 | { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 126 | return ins->prefixes[pos] == prefix; |
| 127 | } |
| 128 | |
| 129 | static void assert_no_prefix(insn * ins, enum prefix_pos pos) |
| 130 | { |
| 131 | if (ins->prefixes[pos]) |
| 132 | errfunc(ERR_NONFATAL, "invalid %s prefix", |
| 133 | prefix_name(ins->prefixes[pos])); |
| 134 | } |
| 135 | |
| 136 | static const char *size_name(int size) |
| 137 | { |
| 138 | switch (size) { |
| 139 | case 1: |
| 140 | return "byte"; |
| 141 | case 2: |
| 142 | return "word"; |
| 143 | case 4: |
| 144 | return "dword"; |
| 145 | case 8: |
| 146 | return "qword"; |
| 147 | case 10: |
| 148 | return "tword"; |
| 149 | case 16: |
| 150 | return "oword"; |
| 151 | default: |
| 152 | return "???"; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 153 | } |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 154 | } |
| 155 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 156 | static void warn_overflow(int size, int64_t data) |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 157 | { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 158 | if (size < 8) { |
Charles Crayne | dd462c8 | 2007-11-04 15:28:30 -0800 | [diff] [blame] | 159 | int64_t lim = ((int64_t)1 << (size*8))-1; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 160 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 161 | if (data < ~lim || data > lim) |
H. Peter Anvin | 72c6437 | 2008-01-08 22:13:48 -0800 | [diff] [blame] | 162 | errfunc(ERR_WARNING | ERR_WARN_NOV, "%s data exceeds bounds", size_name(size)); |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 163 | } |
| 164 | } |
H. Peter Anvin | 6768eb7 | 2002-04-30 20:52:26 +0000 | [diff] [blame] | 165 | /* |
| 166 | * This routine wrappers the real output format's output routine, |
| 167 | * in order to pass a copy of the data off to the listing file |
| 168 | * generator at the same time. |
| 169 | */ |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 170 | static void out(int64_t offset, int32_t segto, const void *data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 171 | enum out_type type, uint64_t size, |
| 172 | int32_t segment, int32_t wrt) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 173 | { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 174 | static int32_t lineno = 0; /* static!!! */ |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 175 | static char *lnfname = NULL; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 176 | uint8_t p[8]; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 177 | |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 178 | if (type == OUT_ADDRESS && segment == NO_SEG && wrt == NO_SEG) { |
| 179 | /* |
| 180 | * This is a non-relocated address, and we're going to |
| 181 | * convert it into RAWDATA format. |
| 182 | */ |
| 183 | uint8_t *q = p; |
H. Peter Anvin | d1fb15c | 2007-11-13 09:37:59 -0800 | [diff] [blame] | 184 | |
| 185 | if (size > 8) { |
| 186 | errfunc(ERR_PANIC, "OUT_ADDRESS with size > 8"); |
| 187 | return; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 188 | } |
H. Peter Anvin | d1fb15c | 2007-11-13 09:37:59 -0800 | [diff] [blame] | 189 | |
| 190 | WRITEADDR(q, *(int64_t *)data, size); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 191 | data = p; |
| 192 | type = OUT_RAWDATA; |
H. Peter Anvin | 6768eb7 | 2002-04-30 20:52:26 +0000 | [diff] [blame] | 193 | } |
| 194 | |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 195 | list->output(offset, data, type, size); |
| 196 | |
Frank Kotler | abebb08 | 2003-09-06 04:45:37 +0000 | [diff] [blame] | 197 | /* |
| 198 | * this call to src_get determines when we call the |
| 199 | * debug-format-specific "linenum" function |
| 200 | * it updates lineno and lnfname to the current values |
| 201 | * returning 0 if "same as last time", -2 if lnfname |
| 202 | * changed, and the amount by which lineno changed, |
| 203 | * if it did. thus, these variables must be static |
| 204 | */ |
| 205 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 206 | if (src_get(&lineno, &lnfname)) { |
| 207 | outfmt->current_dfmt->linenum(lnfname, lineno, segto); |
H. Peter Anvin | ce61607 | 2002-04-30 21:02:23 +0000 | [diff] [blame] | 208 | } |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 209 | |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 210 | outfmt->output(segto, data, type, size, segment, wrt); |
H. Peter Anvin | 6768eb7 | 2002-04-30 20:52:26 +0000 | [diff] [blame] | 211 | } |
| 212 | |
Charles Crayne | 5fbbc8c | 2007-11-07 19:03:46 -0800 | [diff] [blame] | 213 | static int jmp_match(int32_t segment, int64_t offset, int bits, |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 214 | insn * ins, const char *code) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 215 | { |
Charles Crayne | 5fbbc8c | 2007-11-07 19:03:46 -0800 | [diff] [blame] | 216 | int64_t isize; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 217 | uint8_t c = code[0]; |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 218 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 219 | if (c != 0370 && c != 0371) |
| 220 | return 0; |
H. Peter Anvin | 788e6c1 | 2002-04-30 21:02:01 +0000 | [diff] [blame] | 221 | if (ins->oprs[0].opflags & OPFLAG_FORWARD) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 222 | if ((optimizing < 0 || (ins->oprs[0].type & STRICT)) |
| 223 | && c == 0370) |
| 224 | return 1; |
| 225 | else |
| 226 | return (pass0 == 0); /* match a forward reference */ |
H. Peter Anvin | 788e6c1 | 2002-04-30 21:02:01 +0000 | [diff] [blame] | 227 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 228 | isize = calcsize(segment, offset, bits, ins, code); |
| 229 | if (ins->oprs[0].segment != segment) |
| 230 | return 0; |
| 231 | isize = ins->oprs[0].offset - offset - isize; /* isize is now the delta */ |
| 232 | if (isize >= -128L && isize <= 127L) |
| 233 | return 1; /* it is byte size */ |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 234 | |
| 235 | return 0; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 236 | } |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 237 | |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 238 | int64_t assemble(int32_t segment, int64_t offset, int bits, uint32_t cp, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 239 | insn * instruction, struct ofmt *output, efunc error, |
| 240 | ListGen * listgen) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 241 | { |
H. Peter Anvin | 3360d79 | 2007-09-11 04:16:57 +0000 | [diff] [blame] | 242 | const struct itemplate *temp; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 243 | int j; |
| 244 | int size_prob; |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 245 | int64_t insn_end; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 246 | int32_t itimes; |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 247 | int64_t start = offset; |
| 248 | int64_t wsize = 0; /* size for DB etc. */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 249 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 250 | errfunc = error; /* to pass to other functions */ |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 251 | cpu = cp; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 252 | outfmt = output; /* likewise */ |
| 253 | list = listgen; /* and again */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 254 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 255 | switch (instruction->opcode) { |
| 256 | case -1: |
| 257 | return 0; |
| 258 | case I_DB: |
| 259 | wsize = 1; |
| 260 | break; |
| 261 | case I_DW: |
| 262 | wsize = 2; |
| 263 | break; |
| 264 | case I_DD: |
| 265 | wsize = 4; |
| 266 | break; |
| 267 | case I_DQ: |
| 268 | wsize = 8; |
| 269 | break; |
| 270 | case I_DT: |
| 271 | wsize = 10; |
| 272 | break; |
H. Peter Anvin | cfbe7c3 | 2007-09-18 17:49:09 -0700 | [diff] [blame] | 273 | case I_DO: |
| 274 | wsize = 16; |
| 275 | break; |
H. Peter Anvin | 16b0a33 | 2007-09-12 20:27:41 -0700 | [diff] [blame] | 276 | default: |
| 277 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 278 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 279 | |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 280 | if (wsize) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 281 | extop *e; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 282 | int32_t t = instruction->times; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 283 | if (t < 0) |
| 284 | errfunc(ERR_PANIC, |
| 285 | "instruction->times < 0 (%ld) in assemble()", t); |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 286 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 287 | while (t--) { /* repeat TIMES times */ |
| 288 | for (e = instruction->eops; e; e = e->next) { |
| 289 | if (e->type == EOT_DB_NUMBER) { |
| 290 | if (wsize == 1) { |
| 291 | if (e->segment != NO_SEG) |
| 292 | errfunc(ERR_NONFATAL, |
| 293 | "one-byte relocation attempted"); |
| 294 | else { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 295 | uint8_t out_byte = e->offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 296 | out(offset, segment, &out_byte, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 297 | OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 298 | } |
Keith Kanios | 61ff53c | 2007-04-14 18:54:52 +0000 | [diff] [blame] | 299 | } else if (wsize > 8) { |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 300 | errfunc(ERR_NONFATAL, "integer supplied to a DT or DO" |
Keith Kanios | 61ff53c | 2007-04-14 18:54:52 +0000 | [diff] [blame] | 301 | " instruction"); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 302 | } else |
| 303 | out(offset, segment, &e->offset, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 304 | OUT_ADDRESS, wsize, e->segment, e->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 305 | offset += wsize; |
| 306 | } else if (e->type == EOT_DB_STRING) { |
| 307 | int align; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 308 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 309 | out(offset, segment, e->stringval, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 310 | OUT_RAWDATA, e->stringlen, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 311 | align = e->stringlen % wsize; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 312 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 313 | if (align) { |
| 314 | align = wsize - align; |
H. Peter Anvin | d387b8c | 2008-01-27 16:39:26 -0800 | [diff] [blame^] | 315 | out(offset, segment, |
| 316 | "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 317 | OUT_RAWDATA, align, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 318 | } |
| 319 | offset += e->stringlen + align; |
| 320 | } |
| 321 | } |
| 322 | if (t > 0 && t == instruction->times - 1) { |
| 323 | /* |
| 324 | * Dummy call to list->output to give the offset to the |
| 325 | * listing module. |
| 326 | */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 327 | list->output(offset, NULL, OUT_RAWDATA, 0); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 328 | list->uplevel(LIST_TIMES); |
| 329 | } |
| 330 | } |
| 331 | if (instruction->times > 1) |
| 332 | list->downlevel(LIST_TIMES); |
| 333 | return offset - start; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 334 | } |
| 335 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 336 | if (instruction->opcode == I_INCBIN) { |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 337 | static char fname[FILENAME_MAX]; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 338 | FILE *fp; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 339 | int32_t len; |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 340 | char *prefix = "", *combine; |
| 341 | char **pPrevPath = NULL; |
H. Peter Anvin | d7ed89e | 2002-04-30 20:52:08 +0000 | [diff] [blame] | 342 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 343 | len = FILENAME_MAX - 1; |
| 344 | if (len > instruction->eops->stringlen) |
| 345 | len = instruction->eops->stringlen; |
| 346 | strncpy(fname, instruction->eops->stringval, len); |
| 347 | fname[len] = '\0'; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 348 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 349 | while (1) { /* added by alexfru: 'incbin' uses include paths */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 350 | combine = nasm_malloc(strlen(prefix) + len + 1); |
| 351 | strcpy(combine, prefix); |
| 352 | strcat(combine, fname); |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 353 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 354 | if ((fp = fopen(combine, "rb")) != NULL) { |
| 355 | nasm_free(combine); |
| 356 | break; |
| 357 | } |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 358 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 359 | nasm_free(combine); |
| 360 | pPrevPath = pp_get_include_path_ptr(pPrevPath); |
| 361 | if (pPrevPath == NULL) |
| 362 | break; |
| 363 | prefix = *pPrevPath; |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 364 | } |
| 365 | |
| 366 | if (fp == NULL) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 367 | error(ERR_NONFATAL, "`incbin': unable to open file `%s'", |
| 368 | fname); |
| 369 | else if (fseek(fp, 0L, SEEK_END) < 0) |
| 370 | error(ERR_NONFATAL, "`incbin': unable to seek on file `%s'", |
| 371 | fname); |
| 372 | else { |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 373 | static char buf[2048]; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 374 | int32_t t = instruction->times; |
| 375 | int32_t base = 0; |
H. Peter Anvin | d7ed89e | 2002-04-30 20:52:08 +0000 | [diff] [blame] | 376 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 377 | len = ftell(fp); |
| 378 | if (instruction->eops->next) { |
| 379 | base = instruction->eops->next->offset; |
| 380 | len -= base; |
| 381 | if (instruction->eops->next->next && |
| 382 | len > instruction->eops->next->next->offset) |
| 383 | len = instruction->eops->next->next->offset; |
| 384 | } |
| 385 | /* |
| 386 | * Dummy call to list->output to give the offset to the |
| 387 | * listing module. |
| 388 | */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 389 | list->output(offset, NULL, OUT_RAWDATA, 0); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 390 | list->uplevel(LIST_INCBIN); |
| 391 | while (t--) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 392 | int32_t l; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 393 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 394 | fseek(fp, base, SEEK_SET); |
| 395 | l = len; |
| 396 | while (l > 0) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 397 | int32_t m = |
Charles Crayne | 192d5b5 | 2007-10-18 19:02:42 -0700 | [diff] [blame] | 398 | fread(buf, 1, (l > (int32_t) sizeof(buf) ? (int32_t) sizeof(buf) : l), |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 399 | fp); |
| 400 | if (!m) { |
| 401 | /* |
| 402 | * This shouldn't happen unless the file |
| 403 | * actually changes while we are reading |
| 404 | * it. |
| 405 | */ |
| 406 | error(ERR_NONFATAL, |
| 407 | "`incbin': unexpected EOF while" |
| 408 | " reading file `%s'", fname); |
| 409 | t = 0; /* Try to exit cleanly */ |
| 410 | break; |
| 411 | } |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 412 | out(offset, segment, buf, OUT_RAWDATA, m, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 413 | NO_SEG, NO_SEG); |
| 414 | l -= m; |
| 415 | } |
| 416 | } |
| 417 | list->downlevel(LIST_INCBIN); |
| 418 | if (instruction->times > 1) { |
| 419 | /* |
| 420 | * Dummy call to list->output to give the offset to the |
| 421 | * listing module. |
| 422 | */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 423 | list->output(offset, NULL, OUT_RAWDATA, 0); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 424 | list->uplevel(LIST_TIMES); |
| 425 | list->downlevel(LIST_TIMES); |
| 426 | } |
| 427 | fclose(fp); |
| 428 | return instruction->times * len; |
| 429 | } |
| 430 | return 0; /* if we're here, there's an error */ |
H. Peter Anvin | d7ed89e | 2002-04-30 20:52:08 +0000 | [diff] [blame] | 431 | } |
| 432 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 433 | /* Check to see if we need an address-size prefix */ |
| 434 | add_asp(instruction, bits); |
| 435 | |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 436 | size_prob = false; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 437 | |
| 438 | for (temp = nasm_instructions[instruction->opcode]; temp->opcode != -1; temp++){ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 439 | int m = matches(temp, instruction, bits); |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 440 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 441 | if (m == 99) |
| 442 | m += jmp_match(segment, offset, bits, instruction, temp->code); |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 443 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 444 | if (m == 100) { /* matches! */ |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 445 | const char *codes = temp->code; |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 446 | int64_t insn_size = calcsize(segment, offset, bits, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 447 | instruction, codes); |
| 448 | itimes = instruction->times; |
| 449 | if (insn_size < 0) /* shouldn't be, on pass two */ |
| 450 | error(ERR_PANIC, "errors made it through from pass one"); |
| 451 | else |
| 452 | while (itimes--) { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 453 | for (j = 0; j < MAXPREFIX; j++) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 454 | uint8_t c = 0; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 455 | switch (instruction->prefixes[j]) { |
| 456 | case P_LOCK: |
| 457 | c = 0xF0; |
| 458 | break; |
| 459 | case P_REPNE: |
| 460 | case P_REPNZ: |
| 461 | c = 0xF2; |
| 462 | break; |
| 463 | case P_REPE: |
| 464 | case P_REPZ: |
| 465 | case P_REP: |
| 466 | c = 0xF3; |
| 467 | break; |
| 468 | case R_CS: |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 469 | if (bits == 64) { |
| 470 | error(ERR_WARNING, |
Charles Crayne | 1b851dc | 2007-11-05 21:49:49 -0800 | [diff] [blame] | 471 | "cs segment base generated, but will be ignored in 64-bit mode"); |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 472 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 473 | c = 0x2E; |
| 474 | break; |
| 475 | case R_DS: |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 476 | if (bits == 64) { |
| 477 | error(ERR_WARNING, |
Charles Crayne | 1b851dc | 2007-11-05 21:49:49 -0800 | [diff] [blame] | 478 | "ds segment base generated, but will be ignored in 64-bit mode"); |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 479 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 480 | c = 0x3E; |
| 481 | break; |
| 482 | case R_ES: |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 483 | if (bits == 64) { |
| 484 | error(ERR_WARNING, |
Charles Crayne | 1b851dc | 2007-11-05 21:49:49 -0800 | [diff] [blame] | 485 | "es segment base generated, but will be ignored in 64-bit mode"); |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 486 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 487 | c = 0x26; |
| 488 | break; |
| 489 | case R_FS: |
| 490 | c = 0x64; |
| 491 | break; |
| 492 | case R_GS: |
| 493 | c = 0x65; |
| 494 | break; |
| 495 | case R_SS: |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 496 | if (bits == 64) { |
| 497 | error(ERR_WARNING, |
Charles Crayne | 1b851dc | 2007-11-05 21:49:49 -0800 | [diff] [blame] | 498 | "ss segment base generated, but will be ignored in 64-bit mode"); |
Keith Kanios | fd5d913 | 2007-04-16 15:46:46 +0000 | [diff] [blame] | 499 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 500 | c = 0x36; |
| 501 | break; |
| 502 | case R_SEGR6: |
| 503 | case R_SEGR7: |
| 504 | error(ERR_NONFATAL, |
| 505 | "segr6 and segr7 cannot be used as prefixes"); |
| 506 | break; |
| 507 | case P_A16: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 508 | if (bits == 64) { |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 509 | error(ERR_NONFATAL, |
| 510 | "16-bit addressing is not supported " |
| 511 | "in 64-bit mode"); |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 512 | } else if (bits != 16) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 513 | c = 0x67; |
| 514 | break; |
| 515 | case P_A32: |
| 516 | if (bits != 32) |
| 517 | c = 0x67; |
| 518 | break; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 519 | case P_A64: |
| 520 | if (bits != 64) { |
| 521 | error(ERR_NONFATAL, |
| 522 | "64-bit addressing is only supported " |
| 523 | "in 64-bit mode"); |
| 524 | } |
| 525 | break; |
| 526 | case P_ASP: |
| 527 | c = 0x67; |
| 528 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 529 | case P_O16: |
| 530 | if (bits != 16) |
| 531 | c = 0x66; |
| 532 | break; |
| 533 | case P_O32: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 534 | if (bits == 16) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 535 | c = 0x66; |
| 536 | break; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 537 | case P_O64: |
| 538 | /* REX.W */ |
| 539 | break; |
| 540 | case P_OSP: |
| 541 | c = 0x66; |
| 542 | break; |
| 543 | case P_none: |
| 544 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 545 | default: |
| 546 | error(ERR_PANIC, "invalid instruction prefix"); |
| 547 | } |
| 548 | if (c != 0) { |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 549 | out(offset, segment, &c, OUT_RAWDATA, 1, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 550 | NO_SEG, NO_SEG); |
| 551 | offset++; |
| 552 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 553 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 554 | insn_end = offset + insn_size; |
| 555 | gencode(segment, offset, bits, instruction, codes, |
| 556 | insn_end); |
| 557 | offset += insn_size; |
| 558 | if (itimes > 0 && itimes == instruction->times - 1) { |
| 559 | /* |
| 560 | * Dummy call to list->output to give the offset to the |
| 561 | * listing module. |
| 562 | */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 563 | list->output(offset, NULL, OUT_RAWDATA, 0); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 564 | list->uplevel(LIST_TIMES); |
| 565 | } |
| 566 | } |
| 567 | if (instruction->times > 1) |
| 568 | list->downlevel(LIST_TIMES); |
| 569 | return offset - start; |
| 570 | } else if (m > 0 && m > size_prob) { |
| 571 | size_prob = m; |
| 572 | } |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 573 | // temp++; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 574 | } |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 575 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 576 | if (temp->opcode == -1) { /* didn't match any instruction */ |
H. Peter Anvin | 34539fb | 2007-05-30 04:27:58 +0000 | [diff] [blame] | 577 | switch (size_prob) { |
| 578 | case 1: |
| 579 | error(ERR_NONFATAL, "operation size not specified"); |
| 580 | break; |
| 581 | case 2: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 582 | error(ERR_NONFATAL, "mismatch in operand sizes"); |
H. Peter Anvin | 34539fb | 2007-05-30 04:27:58 +0000 | [diff] [blame] | 583 | break; |
| 584 | case 3: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 585 | error(ERR_NONFATAL, "no instruction for this cpu level"); |
H. Peter Anvin | 34539fb | 2007-05-30 04:27:58 +0000 | [diff] [blame] | 586 | break; |
| 587 | case 4: |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 588 | error(ERR_NONFATAL, "instruction not supported in 64-bit mode"); |
H. Peter Anvin | 34539fb | 2007-05-30 04:27:58 +0000 | [diff] [blame] | 589 | break; |
| 590 | default: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 591 | error(ERR_NONFATAL, |
| 592 | "invalid combination of opcode and operands"); |
H. Peter Anvin | 34539fb | 2007-05-30 04:27:58 +0000 | [diff] [blame] | 593 | break; |
| 594 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 595 | } |
| 596 | return 0; |
| 597 | } |
| 598 | |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 599 | int64_t insn_size(int32_t segment, int64_t offset, int bits, uint32_t cp, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 600 | insn * instruction, efunc error) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 601 | { |
H. Peter Anvin | 3360d79 | 2007-09-11 04:16:57 +0000 | [diff] [blame] | 602 | const struct itemplate *temp; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 603 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 604 | errfunc = error; /* to pass to other functions */ |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 605 | cpu = cp; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 606 | |
| 607 | if (instruction->opcode == -1) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 608 | return 0; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 609 | |
H. Peter Anvin | cfbe7c3 | 2007-09-18 17:49:09 -0700 | [diff] [blame] | 610 | if (instruction->opcode == I_DB || instruction->opcode == I_DW || |
| 611 | instruction->opcode == I_DD || instruction->opcode == I_DQ || |
| 612 | instruction->opcode == I_DT || instruction->opcode == I_DO) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 613 | extop *e; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 614 | int32_t isize, osize, wsize = 0; /* placate gcc */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 615 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 616 | isize = 0; |
| 617 | switch (instruction->opcode) { |
| 618 | case I_DB: |
| 619 | wsize = 1; |
| 620 | break; |
| 621 | case I_DW: |
| 622 | wsize = 2; |
| 623 | break; |
| 624 | case I_DD: |
| 625 | wsize = 4; |
| 626 | break; |
| 627 | case I_DQ: |
| 628 | wsize = 8; |
| 629 | break; |
| 630 | case I_DT: |
| 631 | wsize = 10; |
| 632 | break; |
H. Peter Anvin | cfbe7c3 | 2007-09-18 17:49:09 -0700 | [diff] [blame] | 633 | case I_DO: |
| 634 | wsize = 16; |
| 635 | break; |
H. Peter Anvin | 16b0a33 | 2007-09-12 20:27:41 -0700 | [diff] [blame] | 636 | default: |
| 637 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 638 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 639 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 640 | for (e = instruction->eops; e; e = e->next) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 641 | int32_t align; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 642 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 643 | osize = 0; |
| 644 | if (e->type == EOT_DB_NUMBER) |
| 645 | osize = 1; |
| 646 | else if (e->type == EOT_DB_STRING) |
| 647 | osize = e->stringlen; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 648 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 649 | align = (-osize) % wsize; |
| 650 | if (align < 0) |
| 651 | align += wsize; |
| 652 | isize += osize + align; |
| 653 | } |
| 654 | return isize * instruction->times; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 655 | } |
| 656 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 657 | if (instruction->opcode == I_INCBIN) { |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 658 | char fname[FILENAME_MAX]; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 659 | FILE *fp; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 660 | int32_t len; |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 661 | char *prefix = "", *combine; |
| 662 | char **pPrevPath = NULL; |
H. Peter Anvin | d7ed89e | 2002-04-30 20:52:08 +0000 | [diff] [blame] | 663 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 664 | len = FILENAME_MAX - 1; |
| 665 | if (len > instruction->eops->stringlen) |
| 666 | len = instruction->eops->stringlen; |
| 667 | strncpy(fname, instruction->eops->stringval, len); |
| 668 | fname[len] = '\0'; |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 669 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 670 | /* added by alexfru: 'incbin' uses include paths */ |
| 671 | while (1) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 672 | combine = nasm_malloc(strlen(prefix) + len + 1); |
| 673 | strcpy(combine, prefix); |
| 674 | strcat(combine, fname); |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 675 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 676 | if ((fp = fopen(combine, "rb")) != NULL) { |
| 677 | nasm_free(combine); |
| 678 | break; |
| 679 | } |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 680 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 681 | nasm_free(combine); |
| 682 | pPrevPath = pp_get_include_path_ptr(pPrevPath); |
| 683 | if (pPrevPath == NULL) |
| 684 | break; |
| 685 | prefix = *pPrevPath; |
Frank Kotler | d0ed6fd | 2003-08-27 11:33:56 +0000 | [diff] [blame] | 686 | } |
| 687 | |
| 688 | if (fp == NULL) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 689 | error(ERR_NONFATAL, "`incbin': unable to open file `%s'", |
| 690 | fname); |
| 691 | else if (fseek(fp, 0L, SEEK_END) < 0) |
| 692 | error(ERR_NONFATAL, "`incbin': unable to seek on file `%s'", |
| 693 | fname); |
| 694 | else { |
| 695 | len = ftell(fp); |
| 696 | fclose(fp); |
| 697 | if (instruction->eops->next) { |
| 698 | len -= instruction->eops->next->offset; |
| 699 | if (instruction->eops->next->next && |
| 700 | len > instruction->eops->next->next->offset) { |
| 701 | len = instruction->eops->next->next->offset; |
| 702 | } |
| 703 | } |
| 704 | return instruction->times * len; |
| 705 | } |
| 706 | return 0; /* if we're here, there's an error */ |
H. Peter Anvin | d7ed89e | 2002-04-30 20:52:08 +0000 | [diff] [blame] | 707 | } |
| 708 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 709 | /* Check to see if we need an address-size prefix */ |
| 710 | add_asp(instruction, bits); |
| 711 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 712 | for (temp = nasm_instructions[instruction->opcode]; temp->opcode != -1; temp++) { |
| 713 | int m = matches(temp, instruction, bits); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 714 | if (m == 99) |
| 715 | m += jmp_match(segment, offset, bits, instruction, temp->code); |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 716 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 717 | if (m == 100) { |
| 718 | /* we've matched an instruction. */ |
Charles Crayne | 5fbbc8c | 2007-11-07 19:03:46 -0800 | [diff] [blame] | 719 | int64_t isize; |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 720 | const char *codes = temp->code; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 721 | int j; |
| 722 | |
| 723 | isize = calcsize(segment, offset, bits, instruction, codes); |
| 724 | if (isize < 0) |
| 725 | return -1; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 726 | for (j = 0; j < MAXPREFIX; j++) { |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 727 | switch (instruction->prefixes[j]) { |
| 728 | case P_A16: |
| 729 | if (bits != 16) |
| 730 | isize++; |
| 731 | break; |
| 732 | case P_A32: |
| 733 | if (bits != 32) |
| 734 | isize++; |
| 735 | break; |
| 736 | case P_O16: |
| 737 | if (bits != 16) |
| 738 | isize++; |
| 739 | break; |
| 740 | case P_O32: |
| 741 | if (bits == 16) |
| 742 | isize++; |
| 743 | break; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 744 | case P_A64: |
| 745 | case P_O64: |
| 746 | case P_none: |
| 747 | break; |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 748 | default: |
| 749 | isize++; |
| 750 | break; |
| 751 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 752 | } |
| 753 | return isize * instruction->times; |
| 754 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 755 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 756 | return -1; /* didn't match any instruction */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 757 | } |
| 758 | |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 759 | /* check that opn[op] is a signed byte of size 16 or 32, |
| 760 | and return the signed value*/ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 761 | static int is_sbyte(insn * ins, int op, int size) |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 762 | { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 763 | int32_t v; |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 764 | int ret; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 765 | |
| 766 | ret = !(ins->forw_ref && ins->oprs[op].opflags) && /* dead in the water on forward reference or External */ |
| 767 | optimizing >= 0 && |
| 768 | !(ins->oprs[op].type & STRICT) && |
| 769 | ins->oprs[op].wrt == NO_SEG && ins->oprs[op].segment == NO_SEG; |
H. Peter Anvin | 734b188 | 2002-04-30 21:01:08 +0000 | [diff] [blame] | 770 | |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 771 | v = ins->oprs[op].offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 772 | if (size == 16) |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 773 | v = (int16_t)v; /* sign extend if 16 bits */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 774 | |
| 775 | return ret && v >= -128L && v <= 127L; |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 776 | } |
| 777 | |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 778 | static int64_t calcsize(int32_t segment, int64_t offset, int bits, |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 779 | insn * ins, const char *codes) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 780 | { |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 781 | int64_t length = 0; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 782 | uint8_t c; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 783 | int rex_mask = ~0; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 784 | struct operand *opx; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 785 | |
H. Peter Anvin | e3917fc | 2007-11-01 14:53:32 -0700 | [diff] [blame] | 786 | ins->rex = 0; /* Ensure REX is reset */ |
| 787 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 788 | if (ins->prefixes[PPS_OSIZE] == P_O64) |
| 789 | ins->rex |= REX_W; |
| 790 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 791 | (void)segment; /* Don't warn that this parameter is unused */ |
| 792 | (void)offset; /* Don't warn that this parameter is unused */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 793 | |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 794 | while (*codes) { |
| 795 | c = *codes++; |
| 796 | opx = &ins->oprs[c & 3]; |
| 797 | switch (c) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 798 | case 01: |
| 799 | case 02: |
| 800 | case 03: |
| 801 | codes += c, length += c; |
| 802 | break; |
| 803 | case 04: |
| 804 | case 05: |
| 805 | case 06: |
| 806 | case 07: |
| 807 | length++; |
| 808 | break; |
| 809 | case 010: |
| 810 | case 011: |
| 811 | case 012: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 812 | case 013: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 813 | ins->rex |= |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 814 | op_rexflags(opx, REX_B|REX_H|REX_P|REX_W); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 815 | codes++, length++; |
| 816 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 817 | case 014: |
| 818 | case 015: |
| 819 | case 016: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 820 | case 017: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 821 | length++; |
| 822 | break; |
| 823 | case 020: |
| 824 | case 021: |
| 825 | case 022: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 826 | case 023: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 827 | length++; |
| 828 | break; |
| 829 | case 024: |
| 830 | case 025: |
| 831 | case 026: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 832 | case 027: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 833 | length++; |
| 834 | break; |
| 835 | case 030: |
| 836 | case 031: |
| 837 | case 032: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 838 | case 033: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 839 | length += 2; |
| 840 | break; |
| 841 | case 034: |
| 842 | case 035: |
| 843 | case 036: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 844 | case 037: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 845 | if (opx->type & (BITS16 | BITS32 | BITS64)) |
| 846 | length += (opx->type & BITS16) ? 2 : 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 847 | else |
| 848 | length += (bits == 16) ? 2 : 4; |
| 849 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 850 | case 040: |
| 851 | case 041: |
| 852 | case 042: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 853 | case 043: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 854 | length += 4; |
| 855 | break; |
| 856 | case 044: |
| 857 | case 045: |
| 858 | case 046: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 859 | case 047: |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 860 | length += ins->addr_size >> 3; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 861 | break; |
| 862 | case 050: |
| 863 | case 051: |
| 864 | case 052: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 865 | case 053: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 866 | length++; |
| 867 | break; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 868 | case 054: |
| 869 | case 055: |
| 870 | case 056: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 871 | case 057: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 872 | length += 8; /* MOV reg64/imm */ |
| 873 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 874 | case 060: |
| 875 | case 061: |
| 876 | case 062: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 877 | case 063: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 878 | length += 2; |
| 879 | break; |
| 880 | case 064: |
| 881 | case 065: |
| 882 | case 066: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 883 | case 067: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 884 | if (opx->type & (BITS16 | BITS32 | BITS64)) |
| 885 | length += (opx->type & BITS16) ? 2 : 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 886 | else |
| 887 | length += (bits == 16) ? 2 : 4; |
| 888 | break; |
| 889 | case 070: |
| 890 | case 071: |
| 891 | case 072: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 892 | case 073: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 893 | length += 4; |
| 894 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 895 | case 074: |
| 896 | case 075: |
| 897 | case 076: |
| 898 | case 077: |
| 899 | length += 2; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 900 | break; |
| 901 | case 0140: |
| 902 | case 0141: |
| 903 | case 0142: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 904 | case 0143: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 905 | length += is_sbyte(ins, c & 3, 16) ? 1 : 2; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 906 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 907 | case 0144: |
| 908 | case 0145: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 909 | case 0146: |
| 910 | case 0147: |
H. Peter Anvin | a30cc07 | 2007-11-18 21:55:26 -0800 | [diff] [blame] | 911 | codes++; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 912 | length++; |
| 913 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 914 | case 0150: |
| 915 | case 0151: |
| 916 | case 0152: |
| 917 | case 0153: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 918 | length += is_sbyte(ins, c & 3, 32) ? 1 : 4; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 919 | break; |
| 920 | case 0154: |
| 921 | case 0155: |
| 922 | case 0156: |
| 923 | case 0157: |
H. Peter Anvin | a30cc07 | 2007-11-18 21:55:26 -0800 | [diff] [blame] | 924 | codes++; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 925 | length++; |
| 926 | break; |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 927 | case 0160: |
| 928 | case 0161: |
| 929 | case 0162: |
| 930 | case 0163: |
| 931 | length++; |
| 932 | ins->rex |= REX_D; |
H. Peter Anvin | cf5180a | 2007-09-17 17:25:27 -0700 | [diff] [blame] | 933 | ins->drexdst = regval(&ins->oprs[c & 3]); |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 934 | break; |
| 935 | case 0164: |
| 936 | case 0165: |
| 937 | case 0166: |
| 938 | case 0167: |
| 939 | length++; |
| 940 | ins->rex |= REX_D|REX_OC; |
H. Peter Anvin | cf5180a | 2007-09-17 17:25:27 -0700 | [diff] [blame] | 941 | ins->drexdst = regval(&ins->oprs[c & 3]); |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 942 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 943 | case 0170: |
| 944 | length++; |
| 945 | break; |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 946 | case 0171: |
| 947 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 948 | case 0300: |
| 949 | case 0301: |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 950 | case 0302: |
| 951 | case 0303: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 952 | break; |
| 953 | case 0310: |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 954 | if (bits == 64) |
| 955 | return -1; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 956 | length += (bits != 16) && !has_prefix(ins, PPS_ASIZE, P_A16); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 957 | break; |
| 958 | case 0311: |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 959 | length += (bits != 32) && !has_prefix(ins, PPS_ASIZE, P_A32); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 960 | break; |
| 961 | case 0312: |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 962 | break; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 963 | case 0313: |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 964 | if (bits != 64 || has_prefix(ins, PPS_ASIZE, P_A16) || |
| 965 | has_prefix(ins, PPS_ASIZE, P_A32)) |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 966 | return -1; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 967 | break; |
H. Peter Anvin | 2344010 | 2007-11-12 21:02:33 -0800 | [diff] [blame] | 968 | case 0314: |
| 969 | case 0315: |
| 970 | case 0316: |
| 971 | case 0317: |
| 972 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 973 | case 0320: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 974 | length += (bits != 16); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 975 | break; |
| 976 | case 0321: |
| 977 | length += (bits == 16); |
| 978 | break; |
| 979 | case 0322: |
| 980 | break; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 981 | case 0323: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 982 | rex_mask &= ~REX_W; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 983 | break; |
| 984 | case 0324: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 985 | ins->rex |= REX_W; |
H. Peter Anvin | 8d7316a | 2007-04-18 02:27:18 +0000 | [diff] [blame] | 986 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 987 | case 0330: |
| 988 | codes++, length++; |
| 989 | break; |
| 990 | case 0331: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 991 | break; |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 992 | case 0332: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 993 | case 0333: |
| 994 | length++; |
| 995 | break; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 996 | case 0334: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 997 | ins->rex |= REX_L; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 998 | break; |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 999 | case 0335: |
| 1000 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1001 | case 0340: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1002 | if (ins->oprs[0].segment != NO_SEG) |
| 1003 | errfunc(ERR_NONFATAL, "attempt to reserve non-constant" |
| 1004 | " quantity of BSS space"); |
| 1005 | else |
H. Peter Anvin | 428fd67 | 2007-11-15 10:25:52 -0800 | [diff] [blame] | 1006 | length += ins->oprs[0].offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1007 | break; |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 1008 | case 0364: |
| 1009 | case 0365: |
| 1010 | break; |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 1011 | case 0366: |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 1012 | case 0367: |
| 1013 | length++; |
| 1014 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1015 | case 0370: |
| 1016 | case 0371: |
| 1017 | case 0372: |
| 1018 | break; |
| 1019 | case 0373: |
| 1020 | length++; |
| 1021 | break; |
| 1022 | default: /* can't do it by 'case' statements */ |
| 1023 | if (c >= 0100 && c <= 0277) { /* it's an EA */ |
| 1024 | ea ea_data; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1025 | int rfield; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1026 | int32_t rflags; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1027 | ea_data.rex = 0; /* Ensure ea.REX is initially 0 */ |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1028 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1029 | if (c <= 0177) { |
| 1030 | /* pick rfield from operand b */ |
| 1031 | rflags = regflag(&ins->oprs[c & 7]); |
| 1032 | rfield = regvals[ins->oprs[c & 7].basereg]; |
| 1033 | } else { |
| 1034 | rflags = 0; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1035 | rfield = c & 7; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1036 | } |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1037 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1038 | if (!process_ea |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1039 | (&ins->oprs[(c >> 3) & 7], &ea_data, bits, |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1040 | ins->addr_size, rfield, rflags, ins->forw_ref)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1041 | errfunc(ERR_NONFATAL, "invalid effective address"); |
| 1042 | return -1; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1043 | } else { |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1044 | ins->rex |= ea_data.rex; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1045 | length += ea_data.size; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1046 | } |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1047 | } else { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1048 | errfunc(ERR_PANIC, "internal instruction table corrupt" |
| 1049 | ": instruction code 0x%02X given", c); |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1050 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1051 | } |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1052 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1053 | |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1054 | ins->rex &= rex_mask; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1055 | |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1056 | if (ins->rex & REX_D) { |
| 1057 | if (ins->rex & REX_H) { |
| 1058 | errfunc(ERR_NONFATAL, "cannot use high register in drex instruction"); |
| 1059 | return -1; |
| 1060 | } |
H. Peter Anvin | cf5180a | 2007-09-17 17:25:27 -0700 | [diff] [blame] | 1061 | if (bits != 64 && ((ins->rex & (REX_W|REX_X|REX_B)) || |
| 1062 | ins->drexdst > 7)) { |
| 1063 | errfunc(ERR_NONFATAL, "invalid operands in non-64-bit mode"); |
| 1064 | return -1; |
| 1065 | } |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1066 | length++; |
| 1067 | } else if (ins->rex & REX_REAL) { |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1068 | if (ins->rex & REX_H) { |
| 1069 | errfunc(ERR_NONFATAL, "cannot use high register in rex instruction"); |
| 1070 | return -1; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1071 | } else if (bits == 64) { |
| 1072 | length++; |
| 1073 | } else if ((ins->rex & REX_L) && |
| 1074 | !(ins->rex & (REX_P|REX_W|REX_X|REX_B)) && |
| 1075 | cpu >= IF_X86_64) { |
| 1076 | /* LOCK-as-REX.R */ |
| 1077 | assert_no_prefix(ins, PPS_LREP); |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1078 | length++; |
H. Peter Anvin | 8d7316a | 2007-04-18 02:27:18 +0000 | [diff] [blame] | 1079 | } else { |
H. Peter Anvin | cf5180a | 2007-09-17 17:25:27 -0700 | [diff] [blame] | 1080 | errfunc(ERR_NONFATAL, "invalid operands in non-64-bit mode"); |
| 1081 | return -1; |
H. Peter Anvin | 8d7316a | 2007-04-18 02:27:18 +0000 | [diff] [blame] | 1082 | } |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1083 | } |
| 1084 | |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1085 | return length; |
| 1086 | } |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1087 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1088 | #define EMIT_REX() \ |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1089 | if (!(ins->rex & REX_D) && (ins->rex & REX_REAL) && (bits == 64)) { \ |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1090 | ins->rex = (ins->rex & REX_REAL)|REX_P; \ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1091 | out(offset, segment, &ins->rex, OUT_RAWDATA, 1, NO_SEG, NO_SEG); \ |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1092 | ins->rex = 0; \ |
| 1093 | offset += 1; \ |
| 1094 | } |
| 1095 | |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 1096 | static void gencode(int32_t segment, int64_t offset, int bits, |
| 1097 | insn * ins, const char *codes, int64_t insn_end) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1098 | { |
Keith Kanios | a6dfa78 | 2007-04-13 16:47:53 +0000 | [diff] [blame] | 1099 | static char condval[] = { /* conditional opcodes */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1100 | 0x7, 0x3, 0x2, 0x6, 0x2, 0x4, 0xF, 0xD, 0xC, 0xE, 0x6, 0x2, |
| 1101 | 0x3, 0x7, 0x3, 0x5, 0xE, 0xC, 0xD, 0xF, 0x1, 0xB, 0x9, 0x5, |
| 1102 | 0x0, 0xA, 0xA, 0xB, 0x8, 0x4 |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1103 | }; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1104 | uint8_t c; |
| 1105 | uint8_t bytes[4]; |
Charles Crayne | 1f8bc4c | 2007-11-06 18:27:23 -0800 | [diff] [blame] | 1106 | int64_t size; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1107 | int64_t data; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1108 | struct operand *opx; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1109 | |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1110 | while (*codes) { |
| 1111 | c = *codes++; |
| 1112 | opx = &ins->oprs[c & 3]; |
| 1113 | switch (c) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1114 | case 01: |
| 1115 | case 02: |
| 1116 | case 03: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1117 | EMIT_REX(); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1118 | out(offset, segment, codes, OUT_RAWDATA, c, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1119 | codes += c; |
| 1120 | offset += c; |
| 1121 | break; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1122 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1123 | case 04: |
| 1124 | case 06: |
| 1125 | switch (ins->oprs[0].basereg) { |
| 1126 | case R_CS: |
| 1127 | bytes[0] = 0x0E + (c == 0x04 ? 1 : 0); |
| 1128 | break; |
| 1129 | case R_DS: |
| 1130 | bytes[0] = 0x1E + (c == 0x04 ? 1 : 0); |
| 1131 | break; |
| 1132 | case R_ES: |
| 1133 | bytes[0] = 0x06 + (c == 0x04 ? 1 : 0); |
| 1134 | break; |
| 1135 | case R_SS: |
| 1136 | bytes[0] = 0x16 + (c == 0x04 ? 1 : 0); |
| 1137 | break; |
| 1138 | default: |
| 1139 | errfunc(ERR_PANIC, |
| 1140 | "bizarre 8086 segment register received"); |
| 1141 | } |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1142 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1143 | offset++; |
| 1144 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1145 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1146 | case 05: |
| 1147 | case 07: |
| 1148 | switch (ins->oprs[0].basereg) { |
| 1149 | case R_FS: |
| 1150 | bytes[0] = 0xA0 + (c == 0x05 ? 1 : 0); |
| 1151 | break; |
| 1152 | case R_GS: |
| 1153 | bytes[0] = 0xA8 + (c == 0x05 ? 1 : 0); |
| 1154 | break; |
| 1155 | default: |
| 1156 | errfunc(ERR_PANIC, |
| 1157 | "bizarre 386 segment register received"); |
| 1158 | } |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1159 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1160 | offset++; |
| 1161 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1162 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1163 | case 010: |
| 1164 | case 011: |
| 1165 | case 012: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1166 | case 013: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1167 | EMIT_REX(); |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1168 | bytes[0] = *codes++ + ((regval(opx)) & 7); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1169 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1170 | offset += 1; |
| 1171 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1172 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1173 | case 014: |
| 1174 | case 015: |
| 1175 | case 016: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1176 | case 017: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1177 | if (opx->offset < -128 || opx->offset > 127) { |
H. Peter Anvin | 72c6437 | 2008-01-08 22:13:48 -0800 | [diff] [blame] | 1178 | errfunc(ERR_WARNING | ERR_WARN_NOV, |
| 1179 | "signed byte value exceeds bounds"); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1180 | } |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1181 | |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1182 | if (opx->segment != NO_SEG) { |
| 1183 | data = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1184 | out(offset, segment, &data, OUT_ADDRESS, 1, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1185 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1186 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1187 | bytes[0] = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1188 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1189 | NO_SEG); |
| 1190 | } |
| 1191 | offset += 1; |
| 1192 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1193 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1194 | case 020: |
| 1195 | case 021: |
| 1196 | case 022: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1197 | case 023: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1198 | if (opx->offset < -256 || opx->offset > 255) { |
H. Peter Anvin | 72c6437 | 2008-01-08 22:13:48 -0800 | [diff] [blame] | 1199 | errfunc(ERR_WARNING | ERR_WARN_NOV, |
| 1200 | "byte value exceeds bounds"); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1201 | } |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1202 | if (opx->segment != NO_SEG) { |
| 1203 | data = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1204 | out(offset, segment, &data, OUT_ADDRESS, 1, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1205 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1206 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1207 | bytes[0] = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1208 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1209 | NO_SEG); |
| 1210 | } |
| 1211 | offset += 1; |
| 1212 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1213 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1214 | case 024: |
| 1215 | case 025: |
| 1216 | case 026: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1217 | case 027: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1218 | if (opx->offset < 0 || opx->offset > 255) |
H. Peter Anvin | 72c6437 | 2008-01-08 22:13:48 -0800 | [diff] [blame] | 1219 | errfunc(ERR_WARNING | ERR_WARN_NOV, |
| 1220 | "unsigned byte value exceeds bounds"); |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1221 | if (opx->segment != NO_SEG) { |
| 1222 | data = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1223 | out(offset, segment, &data, OUT_ADDRESS, 1, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1224 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1225 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1226 | bytes[0] = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1227 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1228 | NO_SEG); |
| 1229 | } |
| 1230 | offset += 1; |
| 1231 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1232 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1233 | case 030: |
| 1234 | case 031: |
| 1235 | case 032: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1236 | case 033: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1237 | data = opx->offset; |
| 1238 | if (opx->segment == NO_SEG && opx->wrt == NO_SEG) |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1239 | warn_overflow(2, data); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1240 | out(offset, segment, &data, OUT_ADDRESS, 2, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1241 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1242 | offset += 2; |
| 1243 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1244 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1245 | case 034: |
| 1246 | case 035: |
| 1247 | case 036: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1248 | case 037: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1249 | if (opx->type & (BITS16 | BITS32)) |
| 1250 | size = (opx->type & BITS16) ? 2 : 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1251 | else |
| 1252 | size = (bits == 16) ? 2 : 4; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1253 | data = opx->offset; |
| 1254 | if (opx->segment == NO_SEG && opx->wrt == NO_SEG) |
H. Peter Anvin | 10e2727 | 2007-10-29 22:56:08 -0700 | [diff] [blame] | 1255 | warn_overflow(size, data); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1256 | out(offset, segment, &data, OUT_ADDRESS, size, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1257 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1258 | offset += size; |
| 1259 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1260 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1261 | case 040: |
| 1262 | case 041: |
| 1263 | case 042: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1264 | case 043: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1265 | data = opx->offset; |
H. Peter Anvin | 72c6437 | 2008-01-08 22:13:48 -0800 | [diff] [blame] | 1266 | if (opx->segment == NO_SEG && opx->wrt == NO_SEG) |
| 1267 | warn_overflow(4, data); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1268 | out(offset, segment, &data, OUT_ADDRESS, 4, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1269 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1270 | offset += 4; |
| 1271 | break; |
H. Peter Anvin | 3ba4677 | 2002-05-27 23:19:35 +0000 | [diff] [blame] | 1272 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1273 | case 044: |
| 1274 | case 045: |
| 1275 | case 046: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1276 | case 047: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1277 | data = opx->offset; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1278 | size = ins->addr_size >> 3; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1279 | if (opx->segment == NO_SEG && |
| 1280 | opx->wrt == NO_SEG) |
H. Peter Anvin | 10e2727 | 2007-10-29 22:56:08 -0700 | [diff] [blame] | 1281 | warn_overflow(size, data); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1282 | out(offset, segment, &data, OUT_ADDRESS, size, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1283 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1284 | offset += size; |
| 1285 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1286 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1287 | case 050: |
| 1288 | case 051: |
| 1289 | case 052: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1290 | case 053: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1291 | if (opx->segment != segment) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1292 | errfunc(ERR_NONFATAL, |
| 1293 | "short relative jump outside segment"); |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1294 | data = opx->offset - insn_end; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1295 | if (data > 127 || data < -128) |
| 1296 | errfunc(ERR_NONFATAL, "short jump is out of range"); |
| 1297 | bytes[0] = data; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1298 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1299 | offset += 1; |
| 1300 | break; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1301 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1302 | case 054: |
| 1303 | case 055: |
| 1304 | case 056: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1305 | case 057: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1306 | data = (int64_t)opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1307 | out(offset, segment, &data, OUT_ADDRESS, 8, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1308 | opx->segment, opx->wrt); |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1309 | offset += 8; |
| 1310 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1311 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1312 | case 060: |
| 1313 | case 061: |
| 1314 | case 062: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1315 | case 063: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1316 | if (opx->segment != segment) { |
| 1317 | data = opx->offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1318 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1319 | OUT_REL2ADR, insn_end - offset, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1320 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1321 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1322 | data = opx->offset - insn_end; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1323 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1324 | OUT_ADDRESS, 2, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1325 | } |
| 1326 | offset += 2; |
| 1327 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1328 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1329 | case 064: |
| 1330 | case 065: |
| 1331 | case 066: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1332 | case 067: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1333 | if (opx->type & (BITS16 | BITS32 | BITS64)) |
| 1334 | size = (opx->type & BITS16) ? 2 : 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1335 | else |
| 1336 | size = (bits == 16) ? 2 : 4; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1337 | if (opx->segment != segment) { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1338 | data = opx->offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1339 | out(offset, segment, &data, |
| 1340 | size == 2 ? OUT_REL2ADR : OUT_REL4ADR, |
| 1341 | insn_end - offset, opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1342 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1343 | data = opx->offset - insn_end; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1344 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1345 | OUT_ADDRESS, size, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1346 | } |
| 1347 | offset += size; |
| 1348 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1349 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1350 | case 070: |
| 1351 | case 071: |
| 1352 | case 072: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1353 | case 073: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1354 | if (opx->segment != segment) { |
| 1355 | data = opx->offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1356 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1357 | OUT_REL4ADR, insn_end - offset, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1358 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1359 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1360 | data = opx->offset - insn_end; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1361 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1362 | OUT_ADDRESS, 4, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1363 | } |
| 1364 | offset += 4; |
| 1365 | break; |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 1366 | |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1367 | case 074: |
| 1368 | case 075: |
| 1369 | case 076: |
| 1370 | case 077: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1371 | if (opx->segment == NO_SEG) |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1372 | errfunc(ERR_NONFATAL, "value referenced by FAR is not" |
| 1373 | " relocatable"); |
| 1374 | data = 0L; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1375 | out(offset, segment, &data, OUT_ADDRESS, 2, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1376 | outfmt->segbase(1 + opx->segment), |
| 1377 | opx->wrt); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1378 | offset += 2; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1379 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1380 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1381 | case 0140: |
| 1382 | case 0141: |
| 1383 | case 0142: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1384 | case 0143: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1385 | data = opx->offset; |
| 1386 | if (is_sbyte(ins, c & 3, 16)) { |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1387 | bytes[0] = data; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1388 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1389 | NO_SEG); |
| 1390 | offset++; |
| 1391 | } else { |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1392 | if (opx->segment == NO_SEG && |
| 1393 | opx->wrt == NO_SEG) |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1394 | warn_overflow(2, data); |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1395 | out(offset, segment, &data, OUT_ADDRESS, 2, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1396 | opx->segment, opx->wrt); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1397 | offset += 2; |
| 1398 | } |
| 1399 | break; |
| 1400 | |
| 1401 | case 0144: |
| 1402 | case 0145: |
| 1403 | case 0146: |
| 1404 | case 0147: |
| 1405 | EMIT_REX(); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1406 | bytes[0] = *codes++; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1407 | if (is_sbyte(ins, c & 3, 16)) |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1408 | bytes[0] |= 2; /* s-bit */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1409 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1410 | offset++; |
| 1411 | break; |
| 1412 | |
| 1413 | case 0150: |
| 1414 | case 0151: |
| 1415 | case 0152: |
| 1416 | case 0153: |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1417 | data = opx->offset; |
| 1418 | if (is_sbyte(ins, c & 3, 32)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1419 | bytes[0] = data; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1420 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1421 | NO_SEG); |
| 1422 | offset++; |
| 1423 | } else { |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1424 | out(offset, segment, &data, OUT_ADDRESS, 4, |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1425 | opx->segment, opx->wrt); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1426 | offset += 4; |
| 1427 | } |
| 1428 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1429 | |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1430 | case 0154: |
| 1431 | case 0155: |
| 1432 | case 0156: |
| 1433 | case 0157: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1434 | EMIT_REX(); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1435 | bytes[0] = *codes++; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1436 | if (is_sbyte(ins, c & 3, 32)) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1437 | bytes[0] |= 2; /* s-bit */ |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1438 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1439 | offset++; |
| 1440 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1441 | |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1442 | case 0160: |
| 1443 | case 0161: |
| 1444 | case 0162: |
| 1445 | case 0163: |
| 1446 | case 0164: |
| 1447 | case 0165: |
| 1448 | case 0166: |
| 1449 | case 0167: |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1450 | break; |
| 1451 | |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1452 | case 0170: |
H. Peter Anvin | c189b44 | 2007-10-05 17:04:32 -0700 | [diff] [blame] | 1453 | EMIT_REX(); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1454 | bytes[0] = 0; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1455 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1456 | offset += 1; |
| 1457 | break; |
| 1458 | |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1459 | case 0171: |
| 1460 | bytes[0] = |
| 1461 | (ins->drexdst << 4) | |
| 1462 | (ins->rex & REX_OC ? 0x08 : 0) | |
| 1463 | (ins->rex & (REX_R|REX_X|REX_B)); |
| 1464 | ins->rex = 0; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1465 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1466 | offset++; |
| 1467 | break; |
| 1468 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1469 | case 0300: |
| 1470 | case 0301: |
| 1471 | case 0302: |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1472 | case 0303: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1473 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1474 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1475 | case 0310: |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1476 | if (bits == 32 && !has_prefix(ins, PPS_ASIZE, P_A16)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1477 | *bytes = 0x67; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1478 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1479 | offset += 1; |
| 1480 | } else |
| 1481 | offset += 0; |
| 1482 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1483 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1484 | case 0311: |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1485 | if (bits != 32 && !has_prefix(ins, PPS_ASIZE, P_A32)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1486 | *bytes = 0x67; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1487 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1488 | offset += 1; |
| 1489 | } else |
| 1490 | offset += 0; |
| 1491 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1492 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1493 | case 0312: |
| 1494 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1495 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1496 | case 0313: |
| 1497 | ins->rex = 0; |
| 1498 | break; |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 1499 | |
H. Peter Anvin | 2344010 | 2007-11-12 21:02:33 -0800 | [diff] [blame] | 1500 | case 0314: |
| 1501 | case 0315: |
| 1502 | case 0316: |
| 1503 | case 0317: |
| 1504 | break; |
| 1505 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1506 | case 0320: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1507 | if (bits != 16) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1508 | *bytes = 0x66; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1509 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1510 | offset += 1; |
| 1511 | } else |
| 1512 | offset += 0; |
| 1513 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1514 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1515 | case 0321: |
| 1516 | if (bits == 16) { |
| 1517 | *bytes = 0x66; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1518 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1519 | offset += 1; |
| 1520 | } else |
| 1521 | offset += 0; |
| 1522 | break; |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1523 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1524 | case 0322: |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1525 | case 0323: |
| 1526 | break; |
| 1527 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1528 | case 0324: |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1529 | ins->rex |= REX_W; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1530 | break; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1531 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1532 | case 0330: |
| 1533 | *bytes = *codes++ ^ condval[ins->condition]; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1534 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1535 | offset += 1; |
| 1536 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1537 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1538 | case 0331: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1539 | break; |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 1540 | |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 1541 | case 0332: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1542 | case 0333: |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 1543 | *bytes = c - 0332 + 0xF2; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1544 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1545 | offset += 1; |
| 1546 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1547 | |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 1548 | case 0334: |
| 1549 | if (ins->rex & REX_R) { |
| 1550 | *bytes = 0xF0; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1551 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 1552 | offset += 1; |
| 1553 | } |
| 1554 | ins->rex &= ~(REX_L|REX_R); |
| 1555 | break; |
H. Peter Anvin | 0db11e2 | 2007-04-17 20:23:11 +0000 | [diff] [blame] | 1556 | |
H. Peter Anvin | cb9b690 | 2007-09-12 21:58:51 -0700 | [diff] [blame] | 1557 | case 0335: |
| 1558 | break; |
| 1559 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1560 | case 0340: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1561 | if (ins->oprs[0].segment != NO_SEG) |
| 1562 | errfunc(ERR_PANIC, "non-constant BSS size in pass two"); |
| 1563 | else { |
H. Peter Anvin | 428fd67 | 2007-11-15 10:25:52 -0800 | [diff] [blame] | 1564 | int64_t size = ins->oprs[0].offset; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1565 | if (size > 0) |
| 1566 | out(offset, segment, NULL, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1567 | OUT_RESERVE, size, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1568 | offset += size; |
| 1569 | } |
| 1570 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1571 | |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 1572 | case 0364: |
| 1573 | case 0365: |
| 1574 | break; |
| 1575 | |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 1576 | case 0366: |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 1577 | case 0367: |
| 1578 | *bytes = c - 0366 + 0x66; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1579 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 1580 | offset += 1; |
| 1581 | break; |
H. Peter Anvin | 62cb606 | 2007-09-11 22:44:03 +0000 | [diff] [blame] | 1582 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1583 | case 0370: |
| 1584 | case 0371: |
| 1585 | case 0372: |
| 1586 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1587 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1588 | case 0373: |
| 1589 | *bytes = bits == 16 ? 3 : 5; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1590 | out(offset, segment, bytes, OUT_RAWDATA, 1, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1591 | offset += 1; |
| 1592 | break; |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1593 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1594 | default: /* can't do it by 'case' statements */ |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1595 | if (c >= 0100 && c <= 0277) { /* it's an EA */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1596 | ea ea_data; |
| 1597 | int rfield; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1598 | int32_t rflags; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1599 | uint8_t *p; |
| 1600 | int32_t s; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1601 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1602 | if (c <= 0177) { |
| 1603 | /* pick rfield from operand b */ |
| 1604 | rflags = regflag(&ins->oprs[c & 7]); |
| 1605 | rfield = regvals[ins->oprs[c & 7].basereg]; |
| 1606 | } else { |
| 1607 | /* rfield is constant */ |
| 1608 | rflags = 0; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1609 | rfield = c & 7; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1610 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1611 | |
| 1612 | if (!process_ea |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1613 | (&ins->oprs[(c >> 3) & 7], &ea_data, bits, |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1614 | ins->addr_size, rfield, rflags, ins->forw_ref)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1615 | errfunc(ERR_NONFATAL, "invalid effective address"); |
| 1616 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1617 | |
Charles Crayne | 7e97555 | 2007-11-03 22:06:13 -0700 | [diff] [blame] | 1618 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1619 | p = bytes; |
| 1620 | *p++ = ea_data.modrm; |
| 1621 | if (ea_data.sib_present) |
| 1622 | *p++ = ea_data.sib; |
| 1623 | |
H. Peter Anvin | 401c07e | 2007-09-17 16:55:04 -0700 | [diff] [blame] | 1624 | /* DREX suffixes come between the SIB and the displacement */ |
| 1625 | if (ins->rex & REX_D) { |
| 1626 | *p++ = |
| 1627 | (ins->drexdst << 4) | |
| 1628 | (ins->rex & REX_OC ? 0x08 : 0) | |
| 1629 | (ins->rex & (REX_R|REX_X|REX_B)); |
| 1630 | ins->rex = 0; |
| 1631 | } |
| 1632 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1633 | s = p - bytes; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1634 | out(offset, segment, bytes, OUT_RAWDATA, s, NO_SEG, NO_SEG); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1635 | |
| 1636 | switch (ea_data.bytes) { |
| 1637 | case 0: |
| 1638 | break; |
| 1639 | case 1: |
| 1640 | if (ins->oprs[(c >> 3) & 7].segment != NO_SEG) { |
| 1641 | data = ins->oprs[(c >> 3) & 7].offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1642 | out(offset, segment, &data, OUT_ADDRESS, 1, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1643 | ins->oprs[(c >> 3) & 7].segment, |
| 1644 | ins->oprs[(c >> 3) & 7].wrt); |
| 1645 | } else { |
| 1646 | *bytes = ins->oprs[(c >> 3) & 7].offset; |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1647 | out(offset, segment, bytes, OUT_RAWDATA, 1, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1648 | NO_SEG, NO_SEG); |
| 1649 | } |
| 1650 | s++; |
| 1651 | break; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1652 | case 8: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1653 | case 2: |
| 1654 | case 4: |
| 1655 | data = ins->oprs[(c >> 3) & 7].offset; |
Charles Crayne | 7e97555 | 2007-11-03 22:06:13 -0700 | [diff] [blame] | 1656 | warn_overflow(ea_data.bytes, data); |
H. Peter Anvin | d0b0d28 | 2007-09-28 17:17:20 -0700 | [diff] [blame] | 1657 | out(offset, segment, &data, |
H. Peter Anvin | 34f6fb0 | 2007-11-09 14:44:02 -0800 | [diff] [blame] | 1658 | ea_data.rip ? OUT_REL4ADR : OUT_ADDRESS, |
| 1659 | ea_data.bytes, |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1660 | ins->oprs[(c >> 3) & 7].segment, |
| 1661 | ins->oprs[(c >> 3) & 7].wrt); |
| 1662 | s += ea_data.bytes; |
| 1663 | break; |
| 1664 | } |
| 1665 | offset += s; |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1666 | } else { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1667 | errfunc(ERR_PANIC, "internal instruction table corrupt" |
| 1668 | ": instruction code 0x%02X given", c); |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1669 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1670 | } |
H. Peter Anvin | 839eca2 | 2007-10-29 23:12:47 -0700 | [diff] [blame] | 1671 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1672 | } |
| 1673 | |
H. Peter Anvin | 0ec60e6 | 2007-07-07 01:59:52 +0000 | [diff] [blame] | 1674 | static int32_t regflag(const operand * o) |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1675 | { |
| 1676 | if (o->basereg < EXPR_REG_START || o->basereg >= REG_ENUM_LIMIT) { |
| 1677 | errfunc(ERR_PANIC, "invalid operand passed to regflag()"); |
| 1678 | } |
| 1679 | return reg_flags[o->basereg]; |
| 1680 | } |
| 1681 | |
H. Peter Anvin | 5b0e3ec | 2007-07-07 02:01:08 +0000 | [diff] [blame] | 1682 | static int32_t regval(const operand * o) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1683 | { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1684 | if (o->basereg < EXPR_REG_START || o->basereg >= REG_ENUM_LIMIT) { |
| 1685 | errfunc(ERR_PANIC, "invalid operand passed to regval()"); |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1686 | } |
H. Peter Anvin | 232badb | 2002-06-06 02:41:20 +0000 | [diff] [blame] | 1687 | return regvals[o->basereg]; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1688 | } |
| 1689 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1690 | static int op_rexflags(const operand * o, int mask) |
| 1691 | { |
| 1692 | int32_t flags; |
| 1693 | int val; |
| 1694 | |
| 1695 | if (o->basereg < EXPR_REG_START || o->basereg >= REG_ENUM_LIMIT) { |
| 1696 | errfunc(ERR_PANIC, "invalid operand passed to op_rexflags()"); |
| 1697 | } |
| 1698 | |
| 1699 | flags = reg_flags[o->basereg]; |
| 1700 | val = regvals[o->basereg]; |
| 1701 | |
| 1702 | return rexflags(val, flags, mask); |
| 1703 | } |
| 1704 | |
| 1705 | static int rexflags(int val, int32_t flags, int mask) |
| 1706 | { |
| 1707 | int rex = 0; |
| 1708 | |
| 1709 | if (val >= 8) |
| 1710 | rex |= REX_B|REX_X|REX_R; |
| 1711 | if (flags & BITS64) |
| 1712 | rex |= REX_W; |
| 1713 | if (!(REG_HIGH & ~flags)) /* AH, CH, DH, BH */ |
| 1714 | rex |= REX_H; |
| 1715 | else if (!(REG8 & ~flags) && val >= 4) /* SPL, BPL, SIL, DIL */ |
| 1716 | rex |= REX_P; |
| 1717 | |
| 1718 | return rex & mask; |
| 1719 | } |
| 1720 | |
H. Peter Anvin | 3360d79 | 2007-09-11 04:16:57 +0000 | [diff] [blame] | 1721 | static int matches(const struct itemplate *itemp, insn * instruction, int bits) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1722 | { |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1723 | int i, size[MAX_OPERANDS], asize, oprs, ret; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1724 | |
| 1725 | ret = 100; |
| 1726 | |
| 1727 | /* |
| 1728 | * Check the opcode |
| 1729 | */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1730 | if (itemp->opcode != instruction->opcode) |
| 1731 | return 0; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1732 | |
| 1733 | /* |
| 1734 | * Count the operands |
| 1735 | */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1736 | if (itemp->operands != instruction->operands) |
| 1737 | return 0; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1738 | |
| 1739 | /* |
| 1740 | * Check that no spurious colons or TOs are present |
| 1741 | */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1742 | for (i = 0; i < itemp->operands; i++) |
| 1743 | if (instruction->oprs[i].type & ~itemp->opd[i] & (COLON | TO)) |
| 1744 | return 0; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1745 | |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1746 | /* |
| 1747 | * Check that the operand flags all match up |
| 1748 | */ |
H. Peter Anvin | 16b0a33 | 2007-09-12 20:27:41 -0700 | [diff] [blame] | 1749 | for (i = 0; i < itemp->operands; i++) { |
H. Peter Anvin | cf5180a | 2007-09-17 17:25:27 -0700 | [diff] [blame] | 1750 | if (itemp->opd[i] & SAME_AS) { |
| 1751 | int j = itemp->opd[i] & ~SAME_AS; |
| 1752 | if (instruction->oprs[i].type != instruction->oprs[j].type || |
| 1753 | instruction->oprs[i].basereg != instruction->oprs[j].basereg) |
| 1754 | return 0; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1755 | } else if (itemp->opd[i] & ~instruction->oprs[i].type || |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1756 | ((itemp->opd[i] & SIZE_MASK) && |
| 1757 | ((itemp->opd[i] ^ instruction->oprs[i].type) & SIZE_MASK))) { |
H. Peter Anvin | 5a640e1 | 2007-05-29 23:57:12 +0000 | [diff] [blame] | 1758 | if ((itemp->opd[i] & ~instruction->oprs[i].type & ~SIZE_MASK) || |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1759 | (instruction->oprs[i].type & SIZE_MASK)) |
| 1760 | return 0; |
| 1761 | else |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1762 | return 1; |
| 1763 | } |
H. Peter Anvin | 16b0a33 | 2007-09-12 20:27:41 -0700 | [diff] [blame] | 1764 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1765 | |
| 1766 | /* |
| 1767 | * Check operand sizes |
| 1768 | */ |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1769 | if (itemp->flags & IF_ARMASK) { |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1770 | memset(size, 0, sizeof size); |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1771 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1772 | switch (itemp->flags & IF_ARMASK) { |
| 1773 | case IF_AR0: |
| 1774 | i = 0; |
| 1775 | break; |
| 1776 | case IF_AR1: |
| 1777 | i = 1; |
| 1778 | break; |
| 1779 | case IF_AR2: |
| 1780 | i = 2; |
| 1781 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1782 | case IF_AR3: |
| 1783 | i = 3; |
| 1784 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1785 | default: |
| 1786 | break; /* Shouldn't happen */ |
| 1787 | } |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1788 | switch (itemp->flags & IF_SMASK) { |
| 1789 | case IF_SB: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1790 | size[i] = BITS8; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1791 | break; |
| 1792 | case IF_SW: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1793 | size[i] = BITS16; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1794 | break; |
| 1795 | case IF_SD: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1796 | size[i] = BITS32; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1797 | break; |
| 1798 | case IF_SQ: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1799 | size[i] = BITS64; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1800 | break; |
H. Peter Anvin | 41c9f6f | 2007-09-18 13:01:32 -0700 | [diff] [blame] | 1801 | case IF_SO: |
| 1802 | size[i] = BITS128; |
| 1803 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1804 | default: |
| 1805 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1806 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1807 | } else { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1808 | asize = 0; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1809 | switch (itemp->flags & IF_SMASK) { |
| 1810 | case IF_SB: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1811 | asize = BITS8; |
| 1812 | oprs = itemp->operands; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1813 | break; |
| 1814 | case IF_SW: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1815 | asize = BITS16; |
| 1816 | oprs = itemp->operands; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1817 | break; |
| 1818 | case IF_SD: |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1819 | asize = BITS32; |
| 1820 | oprs = itemp->operands; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1821 | break; |
| 1822 | case IF_SQ: |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1823 | asize = BITS64; |
| 1824 | oprs = itemp->operands; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1825 | break; |
H. Peter Anvin | 41c9f6f | 2007-09-18 13:01:32 -0700 | [diff] [blame] | 1826 | case IF_SO: |
| 1827 | asize = BITS128; |
| 1828 | oprs = itemp->operands; |
| 1829 | break; |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1830 | default: |
| 1831 | break; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1832 | } |
H. Peter Anvin | 7eb4a38 | 2007-09-17 15:49:30 -0700 | [diff] [blame] | 1833 | for (i = 0; i < MAX_OPERANDS; i++) |
| 1834 | size[i] = asize; |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1835 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1836 | |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1837 | if (itemp->flags & (IF_SM | IF_SM2)) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1838 | oprs = (itemp->flags & IF_SM2 ? 2 : itemp->operands); |
| 1839 | asize = 0; |
| 1840 | for (i = 0; i < oprs; i++) { |
| 1841 | if ((asize = itemp->opd[i] & SIZE_MASK) != 0) { |
| 1842 | int j; |
| 1843 | for (j = 0; j < oprs; j++) |
| 1844 | size[j] = asize; |
| 1845 | break; |
| 1846 | } |
| 1847 | } |
H. Peter Anvin | ef7468f | 2002-04-30 20:57:59 +0000 | [diff] [blame] | 1848 | } else { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1849 | oprs = itemp->operands; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1850 | } |
| 1851 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1852 | for (i = 0; i < itemp->operands; i++) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1853 | if (!(itemp->opd[i] & SIZE_MASK) && |
| 1854 | (instruction->oprs[i].type & SIZE_MASK & ~size[i])) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1855 | return 2; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1856 | } |
| 1857 | |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 1858 | /* |
| 1859 | * Check template is okay at the set cpu level |
| 1860 | */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1861 | if (((itemp->flags & IF_PLEVEL) > cpu)) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1862 | return 3; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1863 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1864 | /* |
| 1865 | * Check if instruction is available in long mode |
| 1866 | */ |
| 1867 | if ((itemp->flags & IF_NOLONG) && (bits == 64)) |
| 1868 | return 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1869 | |
H. Peter Anvin | af535c1 | 2002-04-30 20:59:21 +0000 | [diff] [blame] | 1870 | /* |
| 1871 | * Check if special handling needed for Jumps |
| 1872 | */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1873 | if ((uint8_t)(itemp->code[0]) >= 0370) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1874 | return 99; |
| 1875 | |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1876 | return ret; |
| 1877 | } |
| 1878 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1879 | static ea *process_ea(operand * input, ea * output, int bits, |
| 1880 | int addrbits, int rfield, int32_t rflags, int forw_ref) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 1881 | { |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 1882 | output->rip = false; |
H. Peter Anvin | 99c4ecd | 2007-08-28 23:06:00 +0000 | [diff] [blame] | 1883 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1884 | /* REX flags for the rfield operand */ |
| 1885 | output->rex |= rexflags(rfield, rflags, REX_R|REX_P|REX_W|REX_H); |
| 1886 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1887 | if (!(REGISTER & ~input->type)) { /* register direct */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1888 | int i; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1889 | int32_t f; |
| 1890 | |
| 1891 | if (input->basereg < EXPR_REG_START /* Verify as Register */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1892 | || input->basereg >= REG_ENUM_LIMIT) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1893 | return NULL; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1894 | f = regflag(input); |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1895 | i = regvals[input->basereg]; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1896 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1897 | if (REG_EA & ~f) |
| 1898 | return NULL; /* Invalid EA register */ |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1899 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1900 | output->rex |= op_rexflags(input, REX_B|REX_P|REX_W|REX_H); |
| 1901 | |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 1902 | output->sib_present = false; /* no SIB necessary */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1903 | output->bytes = 0; /* no offset necessary either */ |
| 1904 | output->modrm = 0xC0 | ((rfield & 7) << 3) | (i & 7); |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1905 | } else { /* it's a memory reference */ |
| 1906 | if (input->basereg == -1 |
| 1907 | && (input->indexreg == -1 || input->scale == 0)) { |
| 1908 | /* it's a pure offset */ |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1909 | if (bits == 64 && (~input->type & IP_REL)) { |
Chuck Crayne | 42fe6ce | 2007-06-03 02:42:41 +0000 | [diff] [blame] | 1910 | int scale, index, base; |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 1911 | output->sib_present = true; |
Chuck Crayne | 42fe6ce | 2007-06-03 02:42:41 +0000 | [diff] [blame] | 1912 | scale = 0; |
| 1913 | index = 4; |
| 1914 | base = 5; |
| 1915 | output->sib = (scale << 6) | (index << 3) | base; |
| 1916 | output->bytes = 4; |
| 1917 | output->modrm = 4 | ((rfield & 7) << 3); |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 1918 | output->rip = false; |
Chuck Crayne | 42fe6ce | 2007-06-03 02:42:41 +0000 | [diff] [blame] | 1919 | } else { |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 1920 | output->sib_present = false; |
Chuck Crayne | 42fe6ce | 2007-06-03 02:42:41 +0000 | [diff] [blame] | 1921 | output->bytes = (addrbits != 16 ? 4 : 2); |
| 1922 | output->modrm = (addrbits != 16 ? 5 : 6) | ((rfield & 7) << 3); |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1923 | output->rip = bits == 64; |
Chuck Crayne | 42fe6ce | 2007-06-03 02:42:41 +0000 | [diff] [blame] | 1924 | } |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1925 | } else { /* it's an indirection */ |
| 1926 | int i = input->indexreg, b = input->basereg, s = input->scale; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1927 | int32_t o = input->offset, seg = input->segment; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1928 | int hb = input->hintbase, ht = input->hinttype; |
| 1929 | int t; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1930 | int it, bt; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1931 | int32_t ix, bx; /* register flags */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1932 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1933 | if (s == 0) |
| 1934 | i = -1; /* make this easy, at least */ |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1935 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1936 | if (i >= EXPR_REG_START && i < REG_ENUM_LIMIT) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1937 | it = regvals[i]; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1938 | ix = reg_flags[i]; |
| 1939 | } else { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1940 | it = -1; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1941 | ix = 0; |
| 1942 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1943 | |
H. Peter Anvin | b0c5462 | 2007-10-28 23:21:46 -0700 | [diff] [blame] | 1944 | if (b >= EXPR_REG_START && b < REG_ENUM_LIMIT) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1945 | bt = regvals[b]; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1946 | bx = reg_flags[b]; |
| 1947 | } else { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1948 | bt = -1; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1949 | bx = 0; |
| 1950 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1951 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1952 | /* check for a 32/64-bit memory reference... */ |
| 1953 | if ((ix|bx) & (BITS32|BITS64)) { |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1954 | /* it must be a 32/64-bit memory reference. Firstly we have |
| 1955 | * to check that all registers involved are type E/Rxx. */ |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1956 | int32_t sok = BITS32|BITS64; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1957 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1958 | if (it != -1) { |
| 1959 | if (!(REG64 & ~ix) || !(REG32 & ~ix)) |
| 1960 | sok &= ix; |
| 1961 | else |
| 1962 | return NULL; |
| 1963 | } |
| 1964 | |
| 1965 | if (bt != -1) { |
H. Peter Anvin | 99c4ecd | 2007-08-28 23:06:00 +0000 | [diff] [blame] | 1966 | if (REG_GPR & ~bx) |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1967 | return NULL; /* Invalid register */ |
H. Peter Anvin | a57e8d4 | 2007-05-30 03:44:02 +0000 | [diff] [blame] | 1968 | if (~sok & bx & SIZE_MASK) |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1969 | return NULL; /* Invalid size */ |
H. Peter Anvin | b0c5462 | 2007-10-28 23:21:46 -0700 | [diff] [blame] | 1970 | sok &= bx; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1971 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 1972 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 1973 | /* While we're here, ensure the user didn't specify |
| 1974 | WORD or QWORD. */ |
| 1975 | if (input->disp_size == 16 || input->disp_size == 64) |
| 1976 | return NULL; |
| 1977 | |
| 1978 | if (addrbits == 16 || |
| 1979 | (addrbits == 32 && !(sok & BITS32)) || |
| 1980 | (addrbits == 64 && !(sok & BITS64))) |
| 1981 | return NULL; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 1982 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1983 | /* now reorganize base/index */ |
| 1984 | if (s == 1 && bt != it && bt != -1 && it != -1 && |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1985 | ((hb == b && ht == EAH_NOTBASE) |
| 1986 | || (hb == i && ht == EAH_MAKEBASE))) { |
| 1987 | /* swap if hints say so */ |
| 1988 | t = bt, bt = it, it = t; |
| 1989 | t = bx, bx = ix, ix = t; |
| 1990 | } |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1991 | if (bt == it) /* convert EAX+2*EAX to 3*EAX */ |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 1992 | bt = -1, bx = 0, s++; |
| 1993 | if (bt == -1 && s == 1 && !(hb == it && ht == EAH_NOTBASE)) { |
| 1994 | /* make single reg base, unless hint */ |
| 1995 | bt = it, bx = ix, it = -1, ix = 0; |
| 1996 | } |
H. Peter Anvin | f5843c6 | 2007-09-10 18:59:26 +0000 | [diff] [blame] | 1997 | if (((s == 2 && it != REG_NUM_ESP |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 1998 | && !(input->eaflags & EAF_TIMESTWO)) || s == 3 |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 1999 | || s == 5 || s == 9) && bt == -1) |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2000 | bt = it, bx = ix, s--; /* convert 3*EAX to EAX+2*EAX */ |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2001 | if (it == -1 && (bt & 7) != REG_NUM_ESP |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2002 | && (input->eaflags & EAF_TIMESTWO)) |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2003 | it = bt, ix = bx, bt = -1, bx = 0, s = 1; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2004 | /* convert [NOSPLIT EAX] to sib format with 0x0 displacement */ |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2005 | if (s == 1 && it == REG_NUM_ESP) { |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2006 | /* swap ESP into base if scale is 1 */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2007 | t = it, it = bt, bt = t; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2008 | t = ix, ix = bx, bx = t; |
| 2009 | } |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2010 | if (it == REG_NUM_ESP |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2011 | || (s != 1 && s != 2 && s != 4 && s != 8 && it != -1)) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2012 | return NULL; /* wrong, for various reasons */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2013 | |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2014 | output->rex |= rexflags(it, ix, REX_X); |
| 2015 | output->rex |= rexflags(bt, bx, REX_B); |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2016 | |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2017 | if (it == -1 && (bt & 7) != REG_NUM_ESP) { |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2018 | /* no SIB needed */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2019 | int mod, rm; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2020 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2021 | if (bt == -1) { |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2022 | rm = 5; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2023 | mod = 0; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2024 | } else { |
| 2025 | rm = (bt & 7); |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2026 | if (rm != REG_NUM_EBP && o == 0 && |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2027 | seg == NO_SEG && !forw_ref && |
| 2028 | !(input->eaflags & |
| 2029 | (EAF_BYTEOFFS | EAF_WORDOFFS))) |
| 2030 | mod = 0; |
| 2031 | else if (input->eaflags & EAF_BYTEOFFS || |
| 2032 | (o >= -128 && o <= 127 && seg == NO_SEG |
| 2033 | && !forw_ref |
| 2034 | && !(input->eaflags & EAF_WORDOFFS))) |
| 2035 | mod = 1; |
| 2036 | else |
| 2037 | mod = 2; |
| 2038 | } |
H. Peter Anvin | ea83827 | 2002-04-30 20:51:53 +0000 | [diff] [blame] | 2039 | |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 2040 | output->sib_present = false; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2041 | output->bytes = (bt == -1 || mod == 2 ? 4 : mod); |
| 2042 | output->modrm = (mod << 6) | ((rfield & 7) << 3) | rm; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2043 | } else { |
| 2044 | /* we need a SIB */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2045 | int mod, scale, index, base; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2046 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2047 | if (it == -1) |
| 2048 | index = 4, s = 1; |
| 2049 | else |
| 2050 | index = (it & 7); |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2051 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2052 | switch (s) { |
| 2053 | case 1: |
| 2054 | scale = 0; |
| 2055 | break; |
| 2056 | case 2: |
| 2057 | scale = 1; |
| 2058 | break; |
| 2059 | case 4: |
| 2060 | scale = 2; |
| 2061 | break; |
| 2062 | case 8: |
| 2063 | scale = 3; |
| 2064 | break; |
| 2065 | default: /* then what the smeg is it? */ |
| 2066 | return NULL; /* panic */ |
| 2067 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2068 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2069 | if (bt == -1) { |
| 2070 | base = 5; |
| 2071 | mod = 0; |
| 2072 | } else { |
| 2073 | base = (bt & 7); |
Keith Kanios | 48af177 | 2007-08-17 07:37:52 +0000 | [diff] [blame] | 2074 | if (base != REG_NUM_EBP && o == 0 && |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2075 | seg == NO_SEG && !forw_ref && |
| 2076 | !(input->eaflags & |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2077 | (EAF_BYTEOFFS | EAF_WORDOFFS))) |
| 2078 | mod = 0; |
| 2079 | else if (input->eaflags & EAF_BYTEOFFS || |
| 2080 | (o >= -128 && o <= 127 && seg == NO_SEG |
| 2081 | && !forw_ref |
| 2082 | && !(input->eaflags & EAF_WORDOFFS))) |
| 2083 | mod = 1; |
| 2084 | else |
| 2085 | mod = 2; |
| 2086 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2087 | |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 2088 | output->sib_present = true; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2089 | output->bytes = (bt == -1 || mod == 2 ? 4 : mod); |
| 2090 | output->modrm = (mod << 6) | ((rfield & 7) << 3) | 4; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2091 | output->sib = (scale << 6) | (index << 3) | base; |
| 2092 | } |
| 2093 | } else { /* it's 16-bit */ |
| 2094 | int mod, rm; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2095 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2096 | /* check for 64-bit long mode */ |
| 2097 | if (addrbits == 64) |
| 2098 | return NULL; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2099 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2100 | /* check all registers are BX, BP, SI or DI */ |
| 2101 | if ((b != -1 && b != R_BP && b != R_BX && b != R_SI |
| 2102 | && b != R_DI) || (i != -1 && i != R_BP && i != R_BX |
| 2103 | && i != R_SI && i != R_DI)) |
| 2104 | return NULL; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2105 | |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2106 | /* ensure the user didn't specify DWORD/QWORD */ |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2107 | if (input->disp_size == 32 || input->disp_size == 64) |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2108 | return NULL; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2109 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2110 | if (s != 1 && i != -1) |
| 2111 | return NULL; /* no can do, in 16-bit EA */ |
| 2112 | if (b == -1 && i != -1) { |
| 2113 | int tmp = b; |
| 2114 | b = i; |
| 2115 | i = tmp; |
| 2116 | } /* swap */ |
| 2117 | if ((b == R_SI || b == R_DI) && i != -1) { |
| 2118 | int tmp = b; |
| 2119 | b = i; |
| 2120 | i = tmp; |
| 2121 | } |
| 2122 | /* have BX/BP as base, SI/DI index */ |
| 2123 | if (b == i) |
| 2124 | return NULL; /* shouldn't ever happen, in theory */ |
| 2125 | if (i != -1 && b != -1 && |
| 2126 | (i == R_BP || i == R_BX || b == R_SI || b == R_DI)) |
| 2127 | return NULL; /* invalid combinations */ |
| 2128 | if (b == -1) /* pure offset: handled above */ |
| 2129 | return NULL; /* so if it gets to here, panic! */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2130 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2131 | rm = -1; |
| 2132 | if (i != -1) |
| 2133 | switch (i * 256 + b) { |
| 2134 | case R_SI * 256 + R_BX: |
| 2135 | rm = 0; |
| 2136 | break; |
| 2137 | case R_DI * 256 + R_BX: |
| 2138 | rm = 1; |
| 2139 | break; |
| 2140 | case R_SI * 256 + R_BP: |
| 2141 | rm = 2; |
| 2142 | break; |
| 2143 | case R_DI * 256 + R_BP: |
| 2144 | rm = 3; |
| 2145 | break; |
| 2146 | } else |
| 2147 | switch (b) { |
| 2148 | case R_SI: |
| 2149 | rm = 4; |
| 2150 | break; |
| 2151 | case R_DI: |
| 2152 | rm = 5; |
| 2153 | break; |
| 2154 | case R_BP: |
| 2155 | rm = 6; |
| 2156 | break; |
| 2157 | case R_BX: |
| 2158 | rm = 7; |
| 2159 | break; |
| 2160 | } |
| 2161 | if (rm == -1) /* can't happen, in theory */ |
| 2162 | return NULL; /* so panic if it does */ |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2163 | |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2164 | if (o == 0 && seg == NO_SEG && !forw_ref && rm != 6 && |
| 2165 | !(input->eaflags & (EAF_BYTEOFFS | EAF_WORDOFFS))) |
| 2166 | mod = 0; |
| 2167 | else if (input->eaflags & EAF_BYTEOFFS || |
| 2168 | (o >= -128 && o <= 127 && seg == NO_SEG |
| 2169 | && !forw_ref |
| 2170 | && !(input->eaflags & EAF_WORDOFFS))) |
| 2171 | mod = 1; |
| 2172 | else |
| 2173 | mod = 2; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2174 | |
H. Peter Anvin | 6867acc | 2007-10-10 14:58:45 -0700 | [diff] [blame] | 2175 | output->sib_present = false; /* no SIB - it's 16-bit */ |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2176 | output->bytes = mod; /* bytes of offset needed */ |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2177 | output->modrm = (mod << 6) | ((rfield & 7) << 3) | rm; |
H. Peter Anvin | e2c8018 | 2005-01-15 22:15:51 +0000 | [diff] [blame] | 2178 | } |
| 2179 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2180 | } |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2181 | |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2182 | output->size = 1 + output->sib_present + output->bytes; |
| 2183 | return output; |
| 2184 | } |
| 2185 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2186 | static void add_asp(insn *ins, int addrbits) |
H. Peter Anvin | eba20a7 | 2002-04-30 20:53:55 +0000 | [diff] [blame] | 2187 | { |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2188 | int j, valid; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2189 | int defdisp; |
Keith Kanios | b7a8954 | 2007-04-12 02:40:54 +0000 | [diff] [blame] | 2190 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2191 | valid = (addrbits == 64) ? 64|32 : 32|16; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2192 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2193 | switch (ins->prefixes[PPS_ASIZE]) { |
| 2194 | case P_A16: |
| 2195 | valid &= 16; |
| 2196 | break; |
| 2197 | case P_A32: |
| 2198 | valid &= 32; |
| 2199 | break; |
| 2200 | case P_A64: |
| 2201 | valid &= 64; |
| 2202 | break; |
| 2203 | case P_ASP: |
| 2204 | valid &= (addrbits == 32) ? 16 : 32; |
| 2205 | break; |
| 2206 | default: |
| 2207 | break; |
| 2208 | } |
| 2209 | |
| 2210 | for (j = 0; j < ins->operands; j++) { |
| 2211 | if (!(MEMORY & ~ins->oprs[j].type)) { |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2212 | int32_t i, b; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2213 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2214 | /* Verify as Register */ |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2215 | if (ins->oprs[j].indexreg < EXPR_REG_START |
| 2216 | || ins->oprs[j].indexreg >= REG_ENUM_LIMIT) |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2217 | i = 0; |
| 2218 | else |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2219 | i = reg_flags[ins->oprs[j].indexreg]; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2220 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2221 | /* Verify as Register */ |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2222 | if (ins->oprs[j].basereg < EXPR_REG_START |
| 2223 | || ins->oprs[j].basereg >= REG_ENUM_LIMIT) |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2224 | b = 0; |
| 2225 | else |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2226 | b = reg_flags[ins->oprs[j].basereg]; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2227 | |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2228 | if (ins->oprs[j].scale == 0) |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2229 | i = 0; |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2230 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2231 | if (!i && !b) { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2232 | int ds = ins->oprs[j].disp_size; |
| 2233 | if ((addrbits != 64 && ds > 8) || |
| 2234 | (addrbits == 64 && ds == 16)) |
| 2235 | valid &= ds; |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2236 | } else { |
| 2237 | if (!(REG16 & ~b)) |
| 2238 | valid &= 16; |
| 2239 | if (!(REG32 & ~b)) |
| 2240 | valid &= 32; |
| 2241 | if (!(REG64 & ~b)) |
| 2242 | valid &= 64; |
H. Peter Anvin | 7065309 | 2007-10-19 14:42:29 -0700 | [diff] [blame] | 2243 | |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2244 | if (!(REG16 & ~i)) |
| 2245 | valid &= 16; |
| 2246 | if (!(REG32 & ~i)) |
| 2247 | valid &= 32; |
| 2248 | if (!(REG64 & ~i)) |
| 2249 | valid &= 64; |
| 2250 | } |
| 2251 | } |
| 2252 | } |
| 2253 | |
| 2254 | if (valid & addrbits) { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2255 | ins->addr_size = addrbits; |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2256 | } else if (valid & ((addrbits == 32) ? 16 : 32)) { |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2257 | /* Add an address size prefix */ |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2258 | enum prefixes pref = (addrbits == 32) ? P_A16 : P_A32; |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2259 | ins->prefixes[PPS_ASIZE] = pref; |
| 2260 | ins->addr_size = (addrbits == 32) ? 16 : 32; |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2261 | } else { |
H. Peter Anvin | c5b9ce0 | 2007-09-22 21:49:51 -0700 | [diff] [blame] | 2262 | /* Impossible... */ |
| 2263 | errfunc(ERR_NONFATAL, "impossible combination of address sizes"); |
H. Peter Anvin | de4b89b | 2007-10-01 15:41:25 -0700 | [diff] [blame] | 2264 | ins->addr_size = addrbits; /* Error recovery */ |
| 2265 | } |
| 2266 | |
| 2267 | defdisp = ins->addr_size == 16 ? 16 : 32; |
| 2268 | |
| 2269 | for (j = 0; j < ins->operands; j++) { |
| 2270 | if (!(MEM_OFFS & ~ins->oprs[j].type) && |
| 2271 | (ins->oprs[j].disp_size ? ins->oprs[j].disp_size : defdisp) |
| 2272 | != ins->addr_size) { |
| 2273 | /* mem_offs sizes must match the address size; if not, |
| 2274 | strip the MEM_OFFS bit and match only EA instructions */ |
| 2275 | ins->oprs[j].type &= ~(MEM_OFFS & ~MEMORY); |
| 2276 | } |
H. Peter Anvin | 3df97a7 | 2007-05-30 03:25:21 +0000 | [diff] [blame] | 2277 | } |
H. Peter Anvin | ea6e34d | 2002-04-30 20:51:32 +0000 | [diff] [blame] | 2278 | } |