lxdream 0.9.1| filename | src/sh4/x86op.h |
| changeset | 361:be3de4ecd954 |
| prev | 359:c588dce7ebde |
| next | 368:36fac4c42322 |
| author | nkeynes |
| date | Tue Sep 04 08:32:44 2007 +0000 (16 years ago) |
| permissions | -rw-r--r-- |
| last change | Add method to retrieve the size of a block, given the code pointer (useful for eg disassembling the block) |
| view | annotate | diff | log | raw |
1 /**
2 * $Id: x86op.h,v 1.2 2007-08-28 08:46:14 nkeynes Exp $
3 *
4 * Definitions of x86 opcodes for use by the translator.
5 *
6 * Copyright (c) 2007 Nathan Keynes.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
19 #ifndef __lxdream_x86op_H
20 #define __lxdream_x86op_H
22 #define R_NONE -1
23 #define R_EAX 0
24 #define R_ECX 1
25 #define R_EDX 2
26 #define R_EBX 3
27 #define R_ESP 4
28 #define R_EBP 5
29 #define R_ESI 6
30 #define R_EDI 7
32 #define R_AL 0
33 #define R_CL 1
34 #define R_DL 2
35 #define R_BL 3
36 #define R_AH 4
37 #define R_CH 5
38 #define R_DH 6
39 #define R_BH 7
42 #define OP(x) *xlat_output++ = (x)
43 #define OP32(x) *((uint32_t *)xlat_output) = (x); xlat_output+=4
45 /* Offset of a reg relative to the sh4r structure */
46 #define REG_OFFSET(reg) (((char *)&sh4r.reg) - ((char *)&sh4r))
48 #define R_T REG_OFFSET(t)
49 #define R_Q REG_OFFSET(q)
50 #define R_S REG_OFFSET(s)
51 #define R_M REG_OFFSET(m)
52 #define R_GBR REG_OFFSET(gbr)
53 #define R_SSR REG_OFFSET(ssr)
54 #define R_SPC REG_OFFSET(spc)
55 #define R_VBR REG_OFFSET(vbr)
56 #define R_MACH REG_OFFSET(mac)+4
57 #define R_MACL REG_OFFSET(mac)
58 #define R_PR REG_OFFSET(pr)
59 #define R_SGR REG_OFFSET(sgr)
60 #define R_FPUL REG_OFFSET(fpul)
61 #define R_FPSCR REG_OFFSET(fpscr)
62 #define R_DBR REG_OFFSET(dbr)
64 /**************** Basic X86 operations *********************/
65 /* Note: operands follow SH4 convention (source, dest) rather than x86
66 * conventions (dest, source)
67 */
69 /* Two-reg modrm form - first arg is the r32 reg, second arg is the r/m32 reg */
70 #define MODRM_r32_rm32(r1,r2) OP(0xC0 | (r1<<3) | r2)
71 #define MODRM_rm32_r32(r1,r2) OP(0xC0 | (r2<<3) | r1)
73 /* ebp+disp8 modrm form */
74 #define MODRM_r32_ebp8(r1,disp) OP(0x45 | (r1<<3)); OP(disp)
76 /* ebp+disp32 modrm form */
77 #define MODRM_r32_ebp32(r1,disp) OP(0x85 | (r1<<3)); OP32(disp)
79 /* Major opcodes */
80 #define ADD_r32_r32(r1,r2) OP(0x03); MODRM_rm32_r32(r1,r2)
81 #define ADD_imm8s_r32(imm,r1) OP(0x83); MODRM_rm32_r32(r1, 0); OP(imm)
82 #define ADC_r32_r32(r1,r2) OP(0x13); MODRM_rm32_r32(r1,r2)
83 #define AND_r32_r32(r1,r2) OP(0x23); MODRM_rm32_r32(r1,r2)
84 #define AND_imm32_r32(imm,r1) OP(0x81); MODRM_rm32_r32(r1,4); OP32(imm)
85 #define CMC() OP(0xF5)
86 #define CMP_r32_r32(r1,r2) OP(0x3B); MODRM_rm32_r32(r1,r2)
87 #define CMP_imm8s_r32(imm,r1) OP(0x83); MODRM_rm32_r32(r1,7); OP(imm)
88 #define JMP_rel8(rel) OP(0xEB); OP(rel)
89 #define MOV_r32_ebp8(r1,disp) OP(0x89); MODRM_r32_ebp8(r1,disp)
90 #define MOV_r32_ebp32(r1,disp) OP(0x89); MODRM_r32_ebp32(r1,disp)
91 #define MOV_ebp8_r32(r1,disp) OP(0x8B); MODRM_r32_ebp8(r1,disp)
92 #define MOV_ebp32_r32(r1,disp) OP(0x8B); MODRM_r32_ebp32(r1,disp)
93 #define MOVSX_r8_r32(r1,r2) OP(0x0F); OP(0xBE); MODRM_rm32_r32(r1,r2)
94 #define MOVSX_r16_r32(r1,r2) OP(0x0F); OP(0xBF); MODRM_rm32_r32(r1,r2)
95 #define MOVZX_r8_r32(r1,r2) OP(0x0F); OP(0xB6); MODRM_rm32_r32(r1,r2)
96 #define MOVZX_r16_r32(r1,r2) OP(0x0F); OP(0xB7); MODRM_rm32_r32(r1,r2)
97 #define NEG_r32(r1) OP(0xF7); MODRM_rm32_r32(r1,3)
98 #define NOT_r32(r1) OP(0xF7); MODRM_rm32_r32(r1,2)
99 #define OR_r32_r32(r1,r2) OP(0x0B); MODRM_rm32_r32(r1,r2)
100 #define OR_imm32_r32(imm,r1) OP(0x81); MODRM_rm32_r32(r1,1); OP32(imm)
101 #define PUSH_r32(r1) OP(0x50 + r1)
102 #define RCL1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,2)
103 #define RCR1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,3)
104 #define RET() OP(0xC3)
105 #define ROL1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,0)
106 #define ROR1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,1)
107 #define SAR1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,7)
108 #define SAR_imm8_r32(imm,r1) OP(0xC1); MODRM_rm32_r32(r1,7); OP(imm)
109 #define SBB_r32_r32(r1,r2) OP(0x1B); MODRM_rm32_r32(r1,r2)
110 #define SHL1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,4)
111 #define SHL_imm8_r32(imm,r1) OP(0xC1); MODRM_rm32_r32(r1,4); OP(imm)
112 #define SHR1_r32(r1) OP(0xD1); MODRM_rm32_r32(r1,5)
113 #define SHR_imm8_r32(imm,r1) OP(0xC1); MODRM_rm32_r32(r1,5); OP(imm)
114 #define SUB_r32_r32(r1,r2) OP(0x2B); MODRM_rm32_r32(r1,r2)
115 #define TEST_r32_r32(r1,r2) OP(0x85); MODRM_rm32_r32(r1,r2)
116 #define TEST_imm32_r32(imm,r1) OP(0xF7); MODRM_rm32_r32(r1,0); OP32(imm)
117 #define XOR_r32_r32(r1,r2) OP(0x33); MODRM_rm32_r32(r1,r2)
118 #define XOR_imm32_r32(imm,r1) OP(0x81); MODRM_rm32_r32(r1,6); OP32(imm)
120 #define ADD_imm32_r32(imm32,r1) OP(0x81); MODRM_rm32_r32(r1,0); OP32(imm32)
121 #define AND_imm8_r8(imm8, r1) OP(0x80); MODRM_rm32_r32(r1,4); OP(imm8)
122 #define CMP_imm32_r32(imm32, r1) OP(0x81); MODRM_rm32_r32(r1,7); OP32(imm32)
123 #define MOV_r32_r32(r1,r2) OP(0x89); MODRM_r32_rm32(r1,r2)
124 #define MUL_r32(r1) OP(0xF7); MODRM_rm32_r32(r1,4)
125 #define IMUL_r32(r1) OP(0xF7); MODRM_rm32_r32(r1,5)
126 #define OR_imm8_r8(imm,r1) OP(0x80); MODRM_rm32_r32(r1,1)
127 #define TEST_r8_r8(r1,r2) OP(0x84); MODRM_r32_rm32(r1,r2)
128 #define SAR_r32_CL(r1) OP(0xD3); MODRM_rm32_r32(r1,7)
129 #define SHR_r32_CL(r1) OP(0xD3); MODRM_rm32_r32(r1,5)
130 #define SHL_r32_CL(r1) OP(0xD3); MODRM_rm32_r32(r1,4)
131 #define XCHG_r8_r8(r1,r2) OP(0x86); MODRM_rm32_r32(r1,r2)
133 /* Conditional branches */
134 #define JE_rel8(rel) OP(0x74); OP(rel)
135 #define JA_rel8(rel) OP(0x77); OP(rel)
136 #define JAE_rel8(rel) OP(0x73); OP(rel)
137 #define JG_rel8(rel) OP(0x7F); OP(rel)
138 #define JGE_rel8(rel) OP(0x7D); OP(rel)
139 #define JC_rel8(rel) OP(0x72); OP(rel)
140 #define JO_rel8(rel) OP(0x70); OP(rel)
142 /* Negated forms */
143 #define JNE_rel8(rel) OP(0x75); OP(rel)
144 #define JNA_rel8(rel) OP(0x76); OP(rel)
145 #define JNAE_rel8(rel) OP(0x72); OP(rel)
146 #define JNG_rel8(rel) OP(0x7E); OP(rel)
147 #define JNGE_rel8(rel) OP(0x7C); OP(rel)
148 #define JNC_rel8(rel) OP(0x73); OP(rel)
149 #define JNO_rel8(rel) OP(0x71); OP(rel)
151 /* Conditional setcc - writeback to sh4r.t */
152 #define SETE_t() OP(0x0F); OP(0x94); MODRM_r32_ebp8(0, R_T);
153 #define SETA_t() OP(0x0F); OP(0x97); MODRM_r32_ebp8(0, R_T);
154 #define SETAE_t() OP(0x0F); OP(0x93); MODRM_r32_ebp8(0, R_T);
155 #define SETG_t() OP(0x0F); OP(0x9F); MODRM_r32_ebp8(0, R_T);
156 #define SETGE_t() OP(0x0F); OP(0x9D); MODRM_r32_ebp8(0, R_T);
157 #define SETC_t() OP(0x0F); OP(0x92); MODRM_r32_ebp8(0, R_T);
158 #define SETO_t() OP(0x0F); OP(0x90); MODRM_r32_ebp8(0, R_T);
160 #define SETNE_t() OP(0x0F); OP(0x95); MODRM_r32_ebp8(0, R_T);
161 #define SETNA_t() OP(0x0F); OP(0x96); MODRM_r32_ebp8(0, R_T);
162 #define SETNAE_t() OP(0x0F); OP(0x92); MODRM_r32_ebp8(0, R_T);
163 #define SETNG_t() OP(0x0F); OP(0x9E); MODRM_r32_ebp8(0, R_T);
164 #define SETNGE_t() OP(0x0F); OP(0x9C); MODRM_r32_ebp8(0, R_T);
165 #define SETNC_t() OP(0x0F); OP(0x93); MODRM_r32_ebp8(0, R_T);
166 #define SETNO_t() OP(0x0F); OP(0x91); MODRM_r32_ebp8(0, R_T);
168 /* Pseudo-op Load carry from T: CMP [EBP+t], #01 ; CMC */
169 #define LDC_t() OP(0x83); MODRM_r32_ebp8(7,R_T); OP(0x01); CMC()
171 #endif /* !__lxdream_x86op_H */
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