65ca3034 |
1 | // Basic macros to emit ARM instructions and some utils |
2 | |
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3 | // (c) Copyright 2008-2009, Grazvydas "notaz" Ignotas |
65ca3034 |
4 | // Free for non-commercial use. |
5 | |
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6 | #define CONTEXT_REG 7 |
7 | |
8 | // XXX: tcache_ptr type for SVP and SH2 compilers differs.. |
9 | #define EMIT_PTR(ptr, x) \ |
10 | do { \ |
11 | *(u32 *)ptr = x; \ |
12 | ptr = (void *)((u8 *)ptr + sizeof(u32)); \ |
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13 | COUNT_OP; \ |
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14 | } while (0) |
15 | |
16 | #define EMIT(x) EMIT_PTR(tcache_ptr, x) |
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17 | |
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18 | #define A_R4M (1 << 4) |
19 | #define A_R5M (1 << 5) |
20 | #define A_R6M (1 << 6) |
21 | #define A_R7M (1 << 7) |
22 | #define A_R8M (1 << 8) |
23 | #define A_R9M (1 << 9) |
24 | #define A_R10M (1 << 10) |
25 | #define A_R11M (1 << 11) |
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26 | #define A_R14M (1 << 14) |
27 | |
28 | #define A_COND_AL 0xe |
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29 | #define A_COND_EQ 0x0 |
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30 | #define A_COND_NE 0x1 |
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31 | #define A_COND_HS 0x2 |
32 | #define A_COND_LO 0x3 |
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33 | #define A_COND_MI 0x4 |
34 | #define A_COND_PL 0x5 |
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35 | #define A_COND_VS 0x6 |
36 | #define A_COND_VC 0x7 |
37 | #define A_COND_HI 0x8 |
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38 | #define A_COND_LS 0x9 |
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39 | #define A_COND_GE 0xa |
40 | #define A_COND_LT 0xb |
41 | #define A_COND_GT 0xc |
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42 | #define A_COND_LE 0xd |
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43 | #define A_COND_CS A_COND_HS |
44 | #define A_COND_CC A_COND_LO |
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45 | |
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46 | /* unified conditions */ |
47 | #define DCOND_EQ A_COND_EQ |
48 | #define DCOND_NE A_COND_NE |
49 | #define DCOND_MI A_COND_MI |
50 | #define DCOND_PL A_COND_PL |
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51 | #define DCOND_HI A_COND_HI |
52 | #define DCOND_HS A_COND_HS |
53 | #define DCOND_LO A_COND_LO |
54 | #define DCOND_GE A_COND_GE |
55 | #define DCOND_GT A_COND_GT |
56 | #define DCOND_LT A_COND_LT |
57 | #define DCOND_LS A_COND_LS |
58 | #define DCOND_LE A_COND_LE |
59 | #define DCOND_VS A_COND_VS |
60 | #define DCOND_VC A_COND_VC |
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61 | |
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62 | /* addressing mode 1 */ |
63 | #define A_AM1_LSL 0 |
64 | #define A_AM1_LSR 1 |
65 | #define A_AM1_ASR 2 |
66 | #define A_AM1_ROR 3 |
67 | |
68 | #define A_AM1_IMM(ror2,imm8) (((ror2)<<8) | (imm8) | 0x02000000) |
69 | #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm)) |
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70 | #define A_AM1_REG_XREG(rs,shift_op,rm) (((rs)<<8) | ((shift_op)<<5) | 0x10 | (rm)) |
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71 | |
72 | /* data processing op */ |
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73 | #define A_OP_AND 0x0 |
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74 | #define A_OP_EOR 0x1 |
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75 | #define A_OP_SUB 0x2 |
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76 | #define A_OP_RSB 0x3 |
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77 | #define A_OP_ADD 0x4 |
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78 | #define A_OP_ADC 0x5 |
79 | #define A_OP_SBC 0x6 |
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80 | #define A_OP_TST 0x8 |
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81 | #define A_OP_TEQ 0x9 |
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82 | #define A_OP_CMP 0xa |
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83 | #define A_OP_ORR 0xc |
84 | #define A_OP_MOV 0xd |
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85 | #define A_OP_BIC 0xe |
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86 | #define A_OP_MVN 0xf |
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87 | |
88 | #define EOP_C_DOP_X(cond,op,s,rn,rd,shifter_op) \ |
89 | EMIT(((cond)<<28) | ((op)<< 21) | ((s)<<20) | ((rn)<<16) | ((rd)<<12) | (shifter_op)) |
90 | |
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91 | #define EOP_C_DOP_IMM( cond,op,s,rn,rd,ror2,imm8) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_IMM(ror2,imm8)) |
92 | #define EOP_C_DOP_REG_XIMM(cond,op,s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_REG_XIMM(shift_imm,shift_op,rm)) |
93 | #define EOP_C_DOP_REG_XREG(cond,op,s,rn,rd,rs, shift_op,rm) EOP_C_DOP_X(cond,op,s,rn,rd,A_AM1_REG_XREG(rs, shift_op,rm)) |
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94 | |
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95 | #define EOP_MOV_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,0, 0,rd,ror2,imm8) |
96 | #define EOP_ORR_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ORR,0,rn,rd,ror2,imm8) |
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97 | #define EOP_EOR_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_EOR,0,rn,rd,ror2,imm8) |
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98 | #define EOP_ADD_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,0,rn,rd,ror2,imm8) |
99 | #define EOP_BIC_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_BIC,0,rn,rd,ror2,imm8) |
100 | #define EOP_AND_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_AND,0,rn,rd,ror2,imm8) |
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101 | #define EOP_SUB_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_SUB,0,rn,rd,ror2,imm8) |
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102 | #define EOP_TST_IMM( rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_TST,1,rn, 0,ror2,imm8) |
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103 | #define EOP_CMP_IMM( rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_CMP,1,rn, 0,ror2,imm8) |
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104 | #define EOP_RSB_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_RSB,0,rn,rd,ror2,imm8) |
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105 | |
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106 | #define EOP_MOV_IMM_C(cond,rd, ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_MOV,0, 0,rd,ror2,imm8) |
107 | #define EOP_ORR_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_ORR,0,rn,rd,ror2,imm8) |
108 | #define EOP_RSB_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_RSB,0,rn,rd,ror2,imm8) |
109 | |
110 | #define EOP_MOV_REG(cond,s,rd, rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_MOV,s, 0,rd,shift_imm,shift_op,rm) |
111 | #define EOP_ORR_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ORR,s,rn,rd,shift_imm,shift_op,rm) |
112 | #define EOP_ADD_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ADD,s,rn,rd,shift_imm,shift_op,rm) |
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113 | #define EOP_ADC_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_ADC,s,rn,rd,shift_imm,shift_op,rm) |
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114 | #define EOP_SUB_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_SUB,s,rn,rd,shift_imm,shift_op,rm) |
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115 | #define EOP_SBC_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_SBC,s,rn,rd,shift_imm,shift_op,rm) |
116 | #define EOP_AND_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_AND,s,rn,rd,shift_imm,shift_op,rm) |
117 | #define EOP_EOR_REG(cond,s,rd,rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_EOR,s,rn,rd,shift_imm,shift_op,rm) |
118 | #define EOP_CMP_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_CMP,1,rn, 0,shift_imm,shift_op,rm) |
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119 | #define EOP_TST_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_TST,1,rn, 0,shift_imm,shift_op,rm) |
120 | #define EOP_TEQ_REG(cond, rn,rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_TEQ,1,rn, 0,shift_imm,shift_op,rm) |
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121 | |
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122 | #define EOP_MOV_REG2(s,rd, rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_MOV,s, 0,rd,rs,shift_op,rm) |
123 | #define EOP_ADD_REG2(s,rd,rn,rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_ADD,s,rn,rd,rs,shift_op,rm) |
124 | #define EOP_SUB_REG2(s,rd,rn,rm,shift_op,rs) EOP_C_DOP_REG_XREG(A_COND_AL,A_OP_SUB,s,rn,rd,rs,shift_op,rm) |
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125 | |
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126 | #define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,0) |
127 | #define EOP_MOV_REG_LSL(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,shift_imm) |
128 | #define EOP_MOV_REG_LSR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSR,shift_imm) |
129 | #define EOP_MOV_REG_ASR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_ASR,shift_imm) |
130 | #define EOP_MOV_REG_ROR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_ROR,shift_imm) |
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131 | |
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132 | #define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0) |
133 | #define EOP_ORR_REG_LSL(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSL,shift_imm) |
134 | #define EOP_ORR_REG_LSR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSR,shift_imm) |
135 | #define EOP_ORR_REG_ASR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_ASR,shift_imm) |
136 | #define EOP_ORR_REG_ROR(rd,rn,rm,shift_imm) EOP_ORR_REG(A_COND_AL,0,rd,rn,rm,A_AM1_ROR,shift_imm) |
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137 | |
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138 | #define EOP_ADD_REG_SIMPLE(rd,rm) EOP_ADD_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0) |
139 | #define EOP_ADD_REG_LSL(rd,rn,rm,shift_imm) EOP_ADD_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSL,shift_imm) |
140 | #define EOP_ADD_REG_LSR(rd,rn,rm,shift_imm) EOP_ADD_REG(A_COND_AL,0,rd,rn,rm,A_AM1_LSR,shift_imm) |
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141 | |
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142 | #define EOP_TST_REG_SIMPLE(rn,rm) EOP_TST_REG(A_COND_AL, rn, 0,A_AM1_LSL,rm) |
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143 | |
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144 | #define EOP_MOV_REG2_LSL(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_LSL,rs) |
145 | #define EOP_MOV_REG2_ROR(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_ROR,rs) |
146 | #define EOP_ADD_REG2_LSL(rd,rn,rm,rs) EOP_ADD_REG2(0,rd,rn,rm,A_AM1_LSL,rs) |
147 | #define EOP_SUB_REG2_LSL(rd,rn,rm,rs) EOP_SUB_REG2(0,rd,rn,rm,A_AM1_LSL,rs) |
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148 | |
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149 | /* addressing mode 2 */ |
150 | #define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \ |
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151 | EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12)) |
152 | |
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153 | /* addressing mode 3 */ |
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154 | #define EOP_C_AM3(cond,u,r,l,rn,rd,s,h,immed_reg) \ |
155 | EMIT(((cond)<<28) | 0x01000090 | ((u)<<23) | ((r)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | \ |
156 | ((s)<<6) | ((h)<<5) | (immed_reg)) |
157 | |
158 | #define EOP_C_AM3_IMM(cond,u,l,rn,rd,s,h,offset_8) EOP_C_AM3(cond,u,1,l,rn,rd,s,h,(((offset_8)&0xf0)<<4)|((offset_8)&0xf)) |
159 | |
160 | #define EOP_C_AM3_REG(cond,u,l,rn,rd,s,h,rm) EOP_C_AM3(cond,u,0,l,rn,rd,s,h,rm) |
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161 | |
162 | /* ldr and str */ |
163 | #define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12) |
164 | #define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12) |
165 | #define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0) |
166 | #define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12) |
167 | #define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0) |
168 | |
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169 | #define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8) |
170 | #define EOP_LDRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,0) |
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171 | #define EOP_LDRH_REG( rd,rn,rm) EOP_C_AM3_REG(A_COND_AL,1,1,rn,rd,0,1,rm) |
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172 | #define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8) |
173 | #define EOP_STRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,0) |
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174 | #define EOP_STRH_REG( rd,rn,rm) EOP_C_AM3_REG(A_COND_AL,1,0,rn,rd,0,1,rm) |
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175 | |
176 | /* ldm and stm */ |
177 | #define EOP_XXM(cond,p,u,s,w,l,rn,list) \ |
178 | EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list)) |
179 | |
180 | #define EOP_STMFD_ST(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list) |
181 | #define EOP_LDMFD_ST(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list) |
182 | |
183 | /* branches */ |
184 | #define EOP_C_BX(cond,rm) \ |
185 | EMIT(((cond)<<28) | 0x012fff10 | (rm)) |
186 | |
187 | #define EOP_BX(rm) EOP_C_BX(A_COND_AL,rm) |
188 | |
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189 | #define EOP_C_B(cond,l,signed_immed_24) \ |
190 | EMIT(((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24)) |
191 | |
192 | #define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24) |
193 | #define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24) |
194 | |
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195 | /* misc */ |
196 | #define EOP_C_MUL(cond,s,rd,rs,rm) \ |
197 | EMIT(((cond)<<28) | ((s)<<20) | ((rd)<<16) | ((rs)<<8) | 0x90 | (rm)) |
198 | |
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199 | #define EOP_C_UMULL(cond,s,rdhi,rdlo,rs,rm) \ |
200 | EMIT(((cond)<<28) | 0x00800000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm)) |
201 | |
202 | #define EOP_C_SMULL(cond,s,rdhi,rdlo,rs,rm) \ |
203 | EMIT(((cond)<<28) | 0x00c00000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm)) |
204 | |
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205 | #define EOP_MUL(rd,rm,rs) EOP_C_MUL(A_COND_AL,0,rd,rs,rm) // note: rd != rm |
206 | |
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207 | #define EOP_C_MRS(cond,rd) \ |
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208 | EMIT(((cond)<<28) | 0x010f0000 | ((rd)<<12)) |
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209 | |
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210 | #define EOP_C_MSR_IMM(cond,ror2,imm) \ |
211 | EMIT(((cond)<<28) | 0x0328f000 | ((ror2)<<8) | (imm)) // cpsr_f |
212 | |
213 | #define EOP_C_MSR_REG(cond,rm) \ |
214 | EMIT(((cond)<<28) | 0x0128f000 | (rm)) // cpsr_f |
215 | |
216 | #define EOP_MRS(rd) EOP_C_MRS(A_COND_AL,rd) |
217 | #define EOP_MSR_IMM(ror2,imm) EOP_C_MSR_IMM(A_COND_AL,ror2,imm) |
218 | #define EOP_MSR_REG(rm) EOP_C_MSR_REG(A_COND_AL,rm) |
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219 | |
220 | |
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221 | static void emith_op_imm(int cond, int s, int op, int r, unsigned int imm) |
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222 | { |
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223 | int ror2, rd = r, rn = r; |
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224 | u32 v; |
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225 | |
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226 | if (op == A_OP_MOV) |
227 | rn = 0; |
228 | else if (imm == 0) |
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229 | return; |
230 | |
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231 | for (v = imm, ror2 = 0; v != 0 || op == A_OP_MOV; v >>= 8, ror2 -= 8/2) { |
232 | /* shift down to get 'best' rot2 */ |
233 | for (; v && !(v & 3); v >>= 2) |
234 | ror2--; |
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235 | |
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236 | EOP_C_DOP_IMM(cond, op, s, rn, rd, ror2 & 0x0f, v & 0xff); |
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237 | |
238 | if (op == A_OP_MOV) { |
239 | op = A_OP_ORR; |
240 | rn = r; |
241 | } |
242 | } |
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243 | } |
244 | |
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245 | // test op |
246 | #define emith_top_imm(cond, op, r, imm) { \ |
247 | u32 ror2, v; \ |
248 | for (ror2 = 0, v = imm; v && !(v & 3); v >>= 2) \ |
249 | ror2--; \ |
250 | EOP_C_DOP_IMM(cond, op, 1, r, 0, ror2 & 0x0f, v & 0xff); \ |
251 | } |
252 | |
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253 | #define is_offset_24(val) \ |
254 | ((val) >= (int)0xff000000 && (val) <= 0x00ffffff) |
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255 | |
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256 | static int emith_xbranch(int cond, void *target, int is_call) |
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257 | { |
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258 | int val = (u32 *)target - (u32 *)tcache_ptr - 2; |
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259 | int direct = is_offset_24(val); |
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260 | u32 *start_ptr = (u32 *)tcache_ptr; |
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261 | |
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262 | if (direct) |
263 | { |
264 | EOP_C_B(cond,is_call,val & 0xffffff); // b, bl target |
265 | } |
266 | else |
267 | { |
268 | #ifdef __EPOC32__ |
269 | // elprintf(EL_SVP, "emitting indirect jmp %08x->%08x", tcache_ptr, target); |
270 | if (is_call) |
271 | EOP_ADD_IMM(14,15,0,8); // add lr,pc,#8 |
272 | EOP_C_AM2_IMM(cond,1,0,1,15,15,0); // ldrcc pc,[pc] |
273 | EOP_MOV_REG_SIMPLE(15,15); // mov pc, pc |
274 | EMIT((u32)target); |
275 | #else |
276 | // should never happen |
277 | elprintf(EL_STATUS|EL_SVP|EL_ANOMALY, "indirect jmp %08x->%08x", target, tcache_ptr); |
278 | exit(1); |
279 | #endif |
280 | } |
281 | |
65c75cb0 |
282 | return (u32 *)tcache_ptr - start_ptr; |
5c129565 |
283 | } |
284 | |
5c129565 |
285 | |
80599a42 |
286 | // fake "simple" or "short" jump - using cond insns instead |
287 | #define EMITH_SJMP_START(cond) \ |
288 | (void)(cond) |
289 | |
290 | #define EMITH_SJMP_END(cond) \ |
291 | (void)(cond) |
292 | |
80599a42 |
293 | #define emith_move_r_r(d, s) \ |
294 | EOP_MOV_REG_SIMPLE(d, s) |
295 | |
3863edbd |
296 | #define emith_or_r_r_r_lsl(d, s1, s2, lslimm) \ |
297 | EOP_ORR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm) |
298 | |
299 | #define emith_eor_r_r_r_lsl(d, s1, s2, lslimm) \ |
300 | EOP_EOR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm) |
301 | |
302 | #define emith_or_r_r_r(d, s1, s2) \ |
303 | emith_or_r_r_r_lsl(d, s1, s2, 0) |
304 | |
305 | #define emith_eor_r_r_r(d, s1, s2) \ |
306 | emith_eor_r_r_r_lsl(d, s1, s2, 0) |
307 | |
80599a42 |
308 | #define emith_add_r_r(d, s) \ |
309 | EOP_ADD_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
310 | |
311 | #define emith_sub_r_r(d, s) \ |
312 | EOP_SUB_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
313 | |
3863edbd |
314 | #define emith_and_r_r(d, s) \ |
315 | EOP_AND_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
316 | |
317 | #define emith_or_r_r(d, s) \ |
318 | emith_or_r_r_r(d, d, s) |
319 | |
320 | #define emith_eor_r_r(d, s) \ |
321 | emith_eor_r_r_r(d, d, s) |
322 | |
323 | #define emith_tst_r_r(d, s) \ |
324 | EOP_TST_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
325 | |
80599a42 |
326 | #define emith_teq_r_r(d, s) \ |
327 | EOP_TEQ_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
328 | |
3863edbd |
329 | #define emith_cmp_r_r(d, s) \ |
330 | EOP_CMP_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
331 | |
332 | #define emith_addf_r_r(d, s) \ |
333 | EOP_ADD_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
334 | |
80599a42 |
335 | #define emith_subf_r_r(d, s) \ |
336 | EOP_SUB_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
65c75cb0 |
337 | |
3863edbd |
338 | #define emith_adcf_r_r(d, s) \ |
339 | EOP_ADC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
340 | |
341 | #define emith_sbcf_r_r(d, s) \ |
342 | EOP_SBC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
343 | |
65c75cb0 |
344 | #define emith_move_r_imm(r, imm) \ |
80599a42 |
345 | emith_op_imm(A_COND_AL, 0, A_OP_MOV, r, imm) |
65c75cb0 |
346 | |
347 | #define emith_add_r_imm(r, imm) \ |
80599a42 |
348 | emith_op_imm(A_COND_AL, 0, A_OP_ADD, r, imm) |
65c75cb0 |
349 | |
350 | #define emith_sub_r_imm(r, imm) \ |
80599a42 |
351 | emith_op_imm(A_COND_AL, 0, A_OP_SUB, r, imm) |
352 | |
353 | #define emith_bic_r_imm(r, imm) \ |
354 | emith_op_imm(A_COND_AL, 0, A_OP_BIC, r, imm) |
355 | |
356 | #define emith_or_r_imm(r, imm) \ |
357 | emith_op_imm(A_COND_AL, 0, A_OP_ORR, r, imm) |
358 | |
ed8cf79b |
359 | // note: only use 8bit imm for these |
80599a42 |
360 | #define emith_tst_r_imm(r, imm) \ |
ed8cf79b |
361 | emith_top_imm(A_COND_AL, A_OP_TST, r, imm) |
362 | |
363 | #define emith_cmp_r_imm(r, imm) \ |
364 | emith_top_imm(A_COND_AL, A_OP_CMP, r, imm) |
80599a42 |
365 | |
366 | #define emith_subf_r_imm(r, imm) \ |
367 | emith_op_imm(A_COND_AL, 1, A_OP_SUB, r, imm) |
368 | |
369 | #define emith_add_r_imm_c(cond, r, imm) \ |
370 | emith_op_imm(cond, 0, A_OP_ADD, r, imm) |
371 | |
372 | #define emith_sub_r_imm_c(cond, r, imm) \ |
373 | emith_op_imm(cond, 0, A_OP_SUB, r, imm) |
374 | |
375 | #define emith_or_r_imm_c(cond, r, imm) \ |
376 | emith_op_imm(cond, 0, A_OP_ORR, r, imm) |
377 | |
3863edbd |
378 | #define emith_bic_r_imm_c(cond, r, imm) \ |
379 | emith_op_imm(cond, 0, A_OP_BIC, r, imm) |
380 | |
80599a42 |
381 | #define emith_lsl(d, s, cnt) \ |
382 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSL,cnt) |
383 | |
384 | #define emith_lsr(d, s, cnt) \ |
385 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSR,cnt) |
386 | |
ed8cf79b |
387 | #define emith_ror(d, s, cnt) \ |
388 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,cnt) |
389 | |
3863edbd |
390 | #define emith_lslf(d, s, cnt) \ |
391 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSL,cnt) |
392 | |
ed8cf79b |
393 | #define emith_lsrf(d, s, cnt) \ |
394 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSR,cnt) |
395 | |
80599a42 |
396 | #define emith_asrf(d, s, cnt) \ |
397 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ASR,cnt) |
398 | |
ed8cf79b |
399 | // note: only C flag updated correctly |
400 | #define emith_rolf(d, s, cnt) { \ |
401 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,32-(cnt)); \ |
402 | /* we don't have ROL so we shift to get the right carry */ \ |
403 | EOP_TST_REG(A_COND_AL,d,d,A_AM1_LSR,1); \ |
404 | } |
405 | |
406 | #define emith_rorf(d, s, cnt) \ |
407 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,cnt) |
408 | |
409 | #define emith_rolcf(d) \ |
410 | emith_adcf_r_r(d, d) |
411 | |
412 | #define emith_rorcf(d) \ |
413 | EOP_MOV_REG(A_COND_AL,1,d,d,A_AM1_ROR,0) /* ROR #0 -> RRX */ |
414 | |
80599a42 |
415 | #define emith_mul(d, s1, s2) { \ |
416 | if ((d) != (s1)) /* rd != rm limitation */ \ |
417 | EOP_MUL(d, s1, s2); \ |
418 | else \ |
419 | EOP_MUL(d, s2, s1); \ |
420 | } |
65c75cb0 |
421 | |
3863edbd |
422 | #define emith_mul_u64(dlo, dhi, s1, s2) \ |
423 | EOP_C_UMULL(A_COND_AL,0,dhi,dlo,s1,s2) |
424 | |
425 | #define emith_mul_s64(dlo, dhi, s1, s2) \ |
426 | EOP_C_SMULL(A_COND_AL,0,dhi,dlo,s1,s2) |
427 | |
428 | // misc |
65c75cb0 |
429 | #define emith_ctx_read(r, offs) \ |
430 | EOP_LDR_IMM(r, CONTEXT_REG, offs) |
431 | |
432 | #define emith_ctx_write(r, offs) \ |
433 | EOP_STR_IMM(r, CONTEXT_REG, offs) |
434 | |
80599a42 |
435 | #define emith_clear_msb(d, s, count) { \ |
436 | u32 t; \ |
437 | if ((count) <= 8) { \ |
438 | t = (count) - 8; \ |
439 | t = (0xff << t) & 0xff; \ |
440 | EOP_BIC_IMM(d,s,8/2,t); \ |
441 | } else if ((count) >= 24) { \ |
442 | t = (count) - 24; \ |
443 | t = 0xff >> t; \ |
444 | EOP_AND_IMM(d,s,0,t); \ |
445 | } else { \ |
446 | EOP_MOV_REG_LSL(d,s,count); \ |
447 | EOP_MOV_REG_LSR(d,d,count); \ |
448 | } \ |
449 | } |
450 | |
451 | #define emith_sext(d, s, bits) { \ |
452 | EOP_MOV_REG_LSL(d,s,32 - (bits)); \ |
453 | EOP_MOV_REG_ASR(d,d,32 - (bits)); \ |
454 | } |
455 | |
3863edbd |
456 | // put bit0 of r0 to carry |
457 | #define emith_set_carry(r0) \ |
458 | EOP_TST_REG(A_COND_AL,r0,r0,A_AM1_LSR,1) /* shift out to carry */ \ |
459 | |
460 | // put bit0 of r0 to carry (for subtraction, inverted on ARM) |
461 | #define emith_set_carry_sub(r0) { \ |
462 | int t = rcache_get_tmp(); \ |
463 | EOP_EOR_IMM(t,r0,0,1); /* invert */ \ |
464 | EOP_MOV_REG(A_COND_AL,1,t,t,A_AM1_LSR,1); /* shift out to carry */ \ |
465 | rcache_free_tmp(t); \ |
466 | } |
467 | |
80599a42 |
468 | #define host_arg2reg(rd, arg) \ |
469 | rd = arg |
470 | |
65c75cb0 |
471 | // upto 4 args |
472 | #define emith_pass_arg_r(arg, reg) \ |
473 | EOP_MOV_REG_SIMPLE(arg, reg) |
474 | |
475 | #define emith_pass_arg_imm(arg, imm) \ |
476 | emith_move_r_imm(arg, imm) |
477 | |
478 | #define emith_call_cond(cond, target) \ |
479 | emith_xbranch(cond, target, 1) |
480 | |
481 | #define emith_jump_cond(cond, target) \ |
482 | emith_xbranch(cond, target, 0) |
483 | |
484 | #define emith_call(target) \ |
485 | emith_call_cond(A_COND_AL, target) |
486 | |
487 | #define emith_jump(target) \ |
488 | emith_jump_cond(A_COND_AL, target) |
489 | |
490 | /* SH2 drc specific */ |
80599a42 |
491 | #define emith_sh2_test_t() { \ |
c18edb34 |
492 | int r = rcache_get_reg(SHR_SR, RC_GR_READ); \ |
65c75cb0 |
493 | EOP_TST_IMM(r, 0, 1); \ |
494 | } |
495 | |
80599a42 |
496 | #define emith_sh2_dtbf_loop() { \ |
497 | int cr, rn; \ |
498 | tmp = rcache_get_tmp(); \ |
499 | cr = rcache_get_reg(SHR_SR, RC_GR_RMW); \ |
500 | rn = rcache_get_reg((op >> 8) & 0x0f, RC_GR_RMW); \ |
501 | emith_sub_r_imm(rn, 1); /* sub rn, #1 */ \ |
502 | emith_bic_r_imm(cr, 1); /* bic cr, #1 */ \ |
503 | emith_sub_r_imm(cr, (cycles+1) << 12); /* sub cr, #(cycles+1)<<12 */ \ |
504 | cycles = 0; \ |
505 | emith_asrf(tmp, cr, 2+12); /* movs tmp, cr, asr #2+12 */ \ |
506 | EOP_MOV_IMM_C(A_COND_MI,tmp,0,0); /* movmi tmp, #0 */ \ |
507 | emith_lsl(cr, cr, 20); /* mov cr, cr, lsl #20 */ \ |
508 | emith_lsr(cr, cr, 20); /* mov cr, cr, lsr #20 */ \ |
509 | emith_subf_r_r(rn, tmp); /* subs rn, tmp */ \ |
510 | EOP_RSB_IMM_C(A_COND_LS,tmp,rn,0,0); /* rsbls tmp, rn, #0 */ \ |
511 | EOP_ORR_REG(A_COND_LS,0,cr,cr,tmp,A_AM1_LSL,12+2); /* orrls cr,tmp,lsl #12+2 */\ |
512 | EOP_ORR_IMM_C(A_COND_LS,cr,cr,0,1); /* orrls cr, #1 */ \ |
513 | EOP_MOV_IMM_C(A_COND_LS,rn,0,0); /* movls rn, #0 */ \ |
514 | rcache_free_tmp(tmp); \ |
515 | } |
65c75cb0 |
516 | |
ed8cf79b |
517 | #define emith_write_sr(srcr) { \ |
518 | int srr = rcache_get_reg(SHR_SR, RC_GR_RMW); \ |
519 | emith_lsr(srr, srr, 12); \ |
520 | emith_or_r_r_r_lsl(srr, srr, srcr, 20); \ |
521 | emith_ror(srr, srr, 20); \ |
522 | } |
523 | |
524 | #define emith_carry_to_t(srr, is_sub) { \ |
525 | if (is_sub) { /* has inverted C on ARM */ \ |
526 | emith_or_r_imm_c(A_COND_CC, srr, 1); \ |
527 | emith_bic_r_imm_c(A_COND_CS, srr, 1); \ |
528 | } else { \ |
529 | emith_or_r_imm_c(A_COND_CS, srr, 1); \ |
530 | emith_bic_r_imm_c(A_COND_CC, srr, 1); \ |
531 | } \ |
532 | } |