65ca3034 |
1 | // Basic macros to emit ARM instructions and some utils |
2 | |
65c75cb0 |
3 | // (c) Copyright 2008-2009, Grazvydas "notaz" Ignotas |
65ca3034 |
4 | // Free for non-commercial use. |
5 | |
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6 | #define CONTEXT_REG 11 |
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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) |
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27 | #define A_R15M (1 << 15) |
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28 | |
29 | #define A_COND_AL 0xe |
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30 | #define A_COND_EQ 0x0 |
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31 | #define A_COND_NE 0x1 |
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32 | #define A_COND_HS 0x2 |
33 | #define A_COND_LO 0x3 |
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34 | #define A_COND_MI 0x4 |
35 | #define A_COND_PL 0x5 |
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36 | #define A_COND_VS 0x6 |
37 | #define A_COND_VC 0x7 |
38 | #define A_COND_HI 0x8 |
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39 | #define A_COND_LS 0x9 |
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40 | #define A_COND_GE 0xa |
41 | #define A_COND_LT 0xb |
42 | #define A_COND_GT 0xc |
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43 | #define A_COND_LE 0xd |
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44 | #define A_COND_CS A_COND_HS |
45 | #define A_COND_CC A_COND_LO |
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46 | |
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47 | /* unified conditions */ |
48 | #define DCOND_EQ A_COND_EQ |
49 | #define DCOND_NE A_COND_NE |
50 | #define DCOND_MI A_COND_MI |
51 | #define DCOND_PL A_COND_PL |
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52 | #define DCOND_HI A_COND_HI |
53 | #define DCOND_HS A_COND_HS |
54 | #define DCOND_LO A_COND_LO |
55 | #define DCOND_GE A_COND_GE |
56 | #define DCOND_GT A_COND_GT |
57 | #define DCOND_LT A_COND_LT |
58 | #define DCOND_LS A_COND_LS |
59 | #define DCOND_LE A_COND_LE |
60 | #define DCOND_VS A_COND_VS |
61 | #define DCOND_VC A_COND_VC |
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62 | |
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63 | /* addressing mode 1 */ |
64 | #define A_AM1_LSL 0 |
65 | #define A_AM1_LSR 1 |
66 | #define A_AM1_ASR 2 |
67 | #define A_AM1_ROR 3 |
68 | |
69 | #define A_AM1_IMM(ror2,imm8) (((ror2)<<8) | (imm8) | 0x02000000) |
70 | #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm)) |
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71 | #define A_AM1_REG_XREG(rs,shift_op,rm) (((rs)<<8) | ((shift_op)<<5) | 0x10 | (rm)) |
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72 | |
73 | /* data processing op */ |
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74 | #define A_OP_AND 0x0 |
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75 | #define A_OP_EOR 0x1 |
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76 | #define A_OP_SUB 0x2 |
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77 | #define A_OP_RSB 0x3 |
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78 | #define A_OP_ADD 0x4 |
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79 | #define A_OP_ADC 0x5 |
80 | #define A_OP_SBC 0x6 |
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81 | #define A_OP_RSC 0x7 |
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82 | #define A_OP_TST 0x8 |
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83 | #define A_OP_TEQ 0x9 |
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84 | #define A_OP_CMP 0xa |
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85 | #define A_OP_CMN 0xa |
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86 | #define A_OP_ORR 0xc |
87 | #define A_OP_MOV 0xd |
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88 | #define A_OP_BIC 0xe |
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89 | #define A_OP_MVN 0xf |
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90 | |
91 | #define EOP_C_DOP_X(cond,op,s,rn,rd,shifter_op) \ |
92 | EMIT(((cond)<<28) | ((op)<< 21) | ((s)<<20) | ((rn)<<16) | ((rd)<<12) | (shifter_op)) |
93 | |
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94 | #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)) |
95 | #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)) |
96 | #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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97 | |
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98 | #define EOP_MOV_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,0, 0,rd,ror2,imm8) |
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99 | #define EOP_MVN_IMM(rd, ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MVN,0, 0,rd,ror2,imm8) |
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100 | #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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101 | #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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102 | #define EOP_ADD_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,0,rn,rd,ror2,imm8) |
103 | #define EOP_BIC_IMM(rd,rn,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_BIC,0,rn,rd,ror2,imm8) |
104 | #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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105 | #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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106 | #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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107 | #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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108 | #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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109 | |
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110 | #define EOP_MOV_IMM_C(cond,rd, ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_MOV,0, 0,rd,ror2,imm8) |
111 | #define EOP_ORR_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_ORR,0,rn,rd,ror2,imm8) |
112 | #define EOP_RSB_IMM_C(cond,rd,rn,ror2,imm8) EOP_C_DOP_IMM(cond,A_OP_RSB,0,rn,rd,ror2,imm8) |
113 | |
114 | #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) |
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115 | #define EOP_MVN_REG(cond,s,rd, rm,shift_op,shift_imm) EOP_C_DOP_REG_XIMM(cond,A_OP_MVN,s, 0,rd,shift_imm,shift_op,rm) |
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116 | #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) |
117 | #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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118 | #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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119 | #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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120 | #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) |
121 | #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) |
122 | #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) |
123 | #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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124 | #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) |
125 | #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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126 | |
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127 | #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) |
128 | #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) |
129 | #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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130 | |
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131 | #define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,0) |
132 | #define EOP_MOV_REG_LSL(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSL,shift_imm) |
133 | #define EOP_MOV_REG_LSR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_LSR,shift_imm) |
134 | #define EOP_MOV_REG_ASR(rd, rm,shift_imm) EOP_MOV_REG(A_COND_AL,0,rd,rm,A_AM1_ASR,shift_imm) |
135 | #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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136 | |
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137 | #define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0) |
138 | #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) |
139 | #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) |
140 | #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) |
141 | #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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142 | |
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143 | #define EOP_ADD_REG_SIMPLE(rd,rm) EOP_ADD_REG(A_COND_AL,0,rd,rd,rm,A_AM1_LSL,0) |
144 | #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) |
145 | #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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146 | |
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147 | #define EOP_TST_REG_SIMPLE(rn,rm) EOP_TST_REG(A_COND_AL, rn, 0,A_AM1_LSL,rm) |
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148 | |
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149 | #define EOP_MOV_REG2_LSL(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_LSL,rs) |
150 | #define EOP_MOV_REG2_ROR(rd, rm,rs) EOP_MOV_REG2(0,rd, rm,A_AM1_ROR,rs) |
151 | #define EOP_ADD_REG2_LSL(rd,rn,rm,rs) EOP_ADD_REG2(0,rd,rn,rm,A_AM1_LSL,rs) |
152 | #define EOP_SUB_REG2_LSL(rd,rn,rm,rs) EOP_SUB_REG2(0,rd,rn,rm,A_AM1_LSL,rs) |
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153 | |
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154 | /* addressing mode 2 */ |
155 | #define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \ |
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156 | EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12)) |
157 | |
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158 | #define EOP_C_AM2_REG(cond,u,b,l,rn,rd,shift_imm,shift_op,rm) \ |
159 | EMIT(((cond)<<28) | 0x07000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | \ |
160 | ((shift_imm)<<7) | ((shift_op)<<5) | (rm)) |
161 | |
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162 | /* addressing mode 3 */ |
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163 | #define EOP_C_AM3(cond,u,r,l,rn,rd,s,h,immed_reg) \ |
164 | EMIT(((cond)<<28) | 0x01000090 | ((u)<<23) | ((r)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | \ |
165 | ((s)<<6) | ((h)<<5) | (immed_reg)) |
166 | |
167 | #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)) |
168 | |
169 | #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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170 | |
171 | /* ldr and str */ |
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172 | #define EOP_LDR_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,0,1,rn,rd,offset_12) |
173 | #define EOP_LDRB_IMM2(cond,rd,rn,offset_12) EOP_C_AM2_IMM(cond,1,1,1,rn,rd,offset_12) |
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174 | |
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175 | #define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12) |
176 | #define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12) |
177 | #define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0) |
178 | #define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12) |
179 | #define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0) |
180 | |
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181 | #define EOP_LDR_REG_LSL(cond,rd,rn,rm,shift_imm) EOP_C_AM2_REG(cond,1,0,1,rn,rd,shift_imm,A_AM1_LSL,rm) |
182 | |
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183 | #define EOP_LDRH_IMM2(cond,rd,rn,offset_8) EOP_C_AM3_IMM(cond,1,1,rn,rd,0,1,offset_8) |
184 | |
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185 | #define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8) |
186 | #define EOP_LDRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,0) |
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187 | #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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188 | #define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8) |
189 | #define EOP_STRH_SIMPLE(rd,rn) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,0) |
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190 | #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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191 | |
192 | /* ldm and stm */ |
193 | #define EOP_XXM(cond,p,u,s,w,l,rn,list) \ |
194 | EMIT(((cond)<<28) | (1<<27) | ((p)<<24) | ((u)<<23) | ((s)<<22) | ((w)<<21) | ((l)<<20) | ((rn)<<16) | (list)) |
195 | |
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196 | #define EOP_STMIA(rb,list) EOP_XXM(A_COND_AL,0,1,0,0,0,rb,list) |
197 | #define EOP_LDMIA(rb,list) EOP_XXM(A_COND_AL,0,1,0,0,1,rb,list) |
198 | |
199 | #define EOP_STMFD_SP(list) EOP_XXM(A_COND_AL,1,0,0,1,0,13,list) |
200 | #define EOP_LDMFD_SP(list) EOP_XXM(A_COND_AL,0,1,0,1,1,13,list) |
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201 | |
202 | /* branches */ |
203 | #define EOP_C_BX(cond,rm) \ |
204 | EMIT(((cond)<<28) | 0x012fff10 | (rm)) |
205 | |
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206 | #define EOP_C_B_PTR(ptr,cond,l,signed_immed_24) \ |
207 | EMIT_PTR(ptr, ((cond)<<28) | 0x0a000000 | ((l)<<24) | (signed_immed_24)) |
208 | |
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209 | #define EOP_C_B(cond,l,signed_immed_24) \ |
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210 | EOP_C_B_PTR(tcache_ptr,cond,l,signed_immed_24) |
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211 | |
212 | #define EOP_B( signed_immed_24) EOP_C_B(A_COND_AL,0,signed_immed_24) |
213 | #define EOP_BL(signed_immed_24) EOP_C_B(A_COND_AL,1,signed_immed_24) |
214 | |
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215 | /* misc */ |
216 | #define EOP_C_MUL(cond,s,rd,rs,rm) \ |
217 | EMIT(((cond)<<28) | ((s)<<20) | ((rd)<<16) | ((rs)<<8) | 0x90 | (rm)) |
218 | |
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219 | #define EOP_C_UMULL(cond,s,rdhi,rdlo,rs,rm) \ |
220 | EMIT(((cond)<<28) | 0x00800000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm)) |
221 | |
222 | #define EOP_C_SMULL(cond,s,rdhi,rdlo,rs,rm) \ |
223 | EMIT(((cond)<<28) | 0x00c00000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm)) |
224 | |
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225 | #define EOP_C_SMLAL(cond,s,rdhi,rdlo,rs,rm) \ |
226 | EMIT(((cond)<<28) | 0x00e00000 | ((s)<<20) | ((rdhi)<<16) | ((rdlo)<<12) | ((rs)<<8) | 0x90 | (rm)) |
227 | |
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228 | #define EOP_MUL(rd,rm,rs) EOP_C_MUL(A_COND_AL,0,rd,rs,rm) // note: rd != rm |
229 | |
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230 | #define EOP_C_MRS(cond,rd) \ |
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231 | EMIT(((cond)<<28) | 0x010f0000 | ((rd)<<12)) |
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232 | |
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233 | #define EOP_C_MSR_IMM(cond,ror2,imm) \ |
234 | EMIT(((cond)<<28) | 0x0328f000 | ((ror2)<<8) | (imm)) // cpsr_f |
235 | |
236 | #define EOP_C_MSR_REG(cond,rm) \ |
237 | EMIT(((cond)<<28) | 0x0128f000 | (rm)) // cpsr_f |
238 | |
239 | #define EOP_MRS(rd) EOP_C_MRS(A_COND_AL,rd) |
240 | #define EOP_MSR_IMM(ror2,imm) EOP_C_MSR_IMM(A_COND_AL,ror2,imm) |
241 | #define EOP_MSR_REG(rm) EOP_C_MSR_REG(A_COND_AL,rm) |
bad5731d |
242 | |
243 | |
e05b81fc |
244 | // XXX: AND, RSB, *C, MVN will break if 1 insn is not enough |
52d759c3 |
245 | static void emith_op_imm2(int cond, int s, int op, int rd, int rn, unsigned int imm) |
5c129565 |
246 | { |
52d759c3 |
247 | int ror2; |
553c3eaa |
248 | u32 v; |
65c75cb0 |
249 | |
8796b7ee |
250 | if (op == A_OP_MOV) { |
553c3eaa |
251 | rn = 0; |
8796b7ee |
252 | if (~imm < 0x100) { |
253 | imm = ~imm; |
254 | op = A_OP_MVN; |
255 | } |
256 | } else if (imm == 0) |
65c75cb0 |
257 | return; |
258 | |
553c3eaa |
259 | for (v = imm, ror2 = 0; v != 0 || op == A_OP_MOV; v >>= 8, ror2 -= 8/2) { |
260 | /* shift down to get 'best' rot2 */ |
261 | for (; v && !(v & 3); v >>= 2) |
262 | ror2--; |
65c75cb0 |
263 | |
80599a42 |
264 | EOP_C_DOP_IMM(cond, op, s, rn, rd, ror2 & 0x0f, v & 0xff); |
553c3eaa |
265 | |
e05b81fc |
266 | if (op == A_OP_MOV) |
553c3eaa |
267 | op = A_OP_ORR; |
e05b81fc |
268 | rn = rd; |
553c3eaa |
269 | } |
259ed0ea |
270 | } |
271 | |
52d759c3 |
272 | #define emith_op_imm(cond, s, op, r, imm) \ |
273 | emith_op_imm2(cond, s, op, r, r, imm) |
274 | |
ed8cf79b |
275 | // test op |
18b94127 |
276 | #define emith_top_imm(cond, op, r, imm) do { \ |
ed8cf79b |
277 | u32 ror2, v; \ |
278 | for (ror2 = 0, v = imm; v && !(v & 3); v >>= 2) \ |
279 | ror2--; \ |
280 | EOP_C_DOP_IMM(cond, op, 1, r, 0, ror2 & 0x0f, v & 0xff); \ |
18b94127 |
281 | } while (0) |
ed8cf79b |
282 | |
65c75cb0 |
283 | #define is_offset_24(val) \ |
284 | ((val) >= (int)0xff000000 && (val) <= 0x00ffffff) |
5c129565 |
285 | |
65c75cb0 |
286 | static int emith_xbranch(int cond, void *target, int is_call) |
5c129565 |
287 | { |
65c75cb0 |
288 | int val = (u32 *)target - (u32 *)tcache_ptr - 2; |
f8af9634 |
289 | int direct = is_offset_24(val); |
65c75cb0 |
290 | u32 *start_ptr = (u32 *)tcache_ptr; |
259ed0ea |
291 | |
f8af9634 |
292 | if (direct) |
293 | { |
294 | EOP_C_B(cond,is_call,val & 0xffffff); // b, bl target |
295 | } |
296 | else |
297 | { |
298 | #ifdef __EPOC32__ |
299 | // elprintf(EL_SVP, "emitting indirect jmp %08x->%08x", tcache_ptr, target); |
300 | if (is_call) |
301 | EOP_ADD_IMM(14,15,0,8); // add lr,pc,#8 |
302 | EOP_C_AM2_IMM(cond,1,0,1,15,15,0); // ldrcc pc,[pc] |
303 | EOP_MOV_REG_SIMPLE(15,15); // mov pc, pc |
304 | EMIT((u32)target); |
305 | #else |
306 | // should never happen |
307 | elprintf(EL_STATUS|EL_SVP|EL_ANOMALY, "indirect jmp %08x->%08x", target, tcache_ptr); |
308 | exit(1); |
309 | #endif |
310 | } |
311 | |
65c75cb0 |
312 | return (u32 *)tcache_ptr - start_ptr; |
5c129565 |
313 | } |
314 | |
8796b7ee |
315 | #define JMP_POS(ptr) \ |
316 | ptr = tcache_ptr; \ |
317 | tcache_ptr += sizeof(u32) |
318 | |
319 | #define JMP_EMIT(cond, ptr) { \ |
320 | int val = (u32 *)tcache_ptr - (u32 *)(ptr) - 2; \ |
321 | EOP_C_B_PTR(ptr, cond, 0, val & 0xffffff); \ |
322 | } |
323 | |
324 | #define EMITH_JMP_START(cond) { \ |
325 | void *cond_ptr; \ |
326 | JMP_POS(cond_ptr) |
327 | |
328 | #define EMITH_JMP_END(cond) \ |
329 | JMP_EMIT(cond, cond_ptr); \ |
330 | } |
5c129565 |
331 | |
80599a42 |
332 | // fake "simple" or "short" jump - using cond insns instead |
b081408f |
333 | #define EMITH_NOTHING1(cond) \ |
80599a42 |
334 | (void)(cond) |
335 | |
b081408f |
336 | #define EMITH_SJMP_START(cond) EMITH_NOTHING1(cond) |
337 | #define EMITH_SJMP_END(cond) EMITH_NOTHING1(cond) |
338 | #define EMITH_SJMP3_START(cond) EMITH_NOTHING1(cond) |
339 | #define EMITH_SJMP3_MID(cond) EMITH_NOTHING1(cond) |
340 | #define EMITH_SJMP3_END() |
80599a42 |
341 | |
80599a42 |
342 | #define emith_move_r_r(d, s) \ |
343 | EOP_MOV_REG_SIMPLE(d, s) |
344 | |
52d759c3 |
345 | #define emith_mvn_r_r(d, s) \ |
346 | EOP_MVN_REG(A_COND_AL,0,d,s,A_AM1_LSL,0) |
347 | |
3863edbd |
348 | #define emith_or_r_r_r_lsl(d, s1, s2, lslimm) \ |
349 | EOP_ORR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm) |
350 | |
351 | #define emith_eor_r_r_r_lsl(d, s1, s2, lslimm) \ |
352 | EOP_EOR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSL,lslimm) |
353 | |
f0d7b1fa |
354 | #define emith_eor_r_r_r_lsr(d, s1, s2, lsrimm) \ |
355 | EOP_EOR_REG(A_COND_AL,0,d,s1,s2,A_AM1_LSR,lsrimm) |
356 | |
357 | #define emith_or_r_r_lsl(d, s, lslimm) \ |
358 | emith_or_r_r_r_lsl(d, d, s, lslimm) |
359 | |
360 | #define emith_eor_r_r_lsr(d, s, lsrimm) \ |
361 | emith_eor_r_r_r_lsr(d, d, s, lsrimm) |
362 | |
3863edbd |
363 | #define emith_or_r_r_r(d, s1, s2) \ |
364 | emith_or_r_r_r_lsl(d, s1, s2, 0) |
365 | |
366 | #define emith_eor_r_r_r(d, s1, s2) \ |
367 | emith_eor_r_r_r_lsl(d, s1, s2, 0) |
368 | |
80599a42 |
369 | #define emith_add_r_r(d, s) \ |
370 | EOP_ADD_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
371 | |
372 | #define emith_sub_r_r(d, s) \ |
373 | EOP_SUB_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
374 | |
8b4f38f4 |
375 | #define emith_adc_r_r(d, s) \ |
376 | EOP_ADC_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
377 | |
3863edbd |
378 | #define emith_and_r_r(d, s) \ |
379 | EOP_AND_REG(A_COND_AL,0,d,d,s,A_AM1_LSL,0) |
380 | |
381 | #define emith_or_r_r(d, s) \ |
382 | emith_or_r_r_r(d, d, s) |
383 | |
384 | #define emith_eor_r_r(d, s) \ |
385 | emith_eor_r_r_r(d, d, s) |
386 | |
387 | #define emith_tst_r_r(d, s) \ |
388 | EOP_TST_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
389 | |
80599a42 |
390 | #define emith_teq_r_r(d, s) \ |
391 | EOP_TEQ_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
392 | |
3863edbd |
393 | #define emith_cmp_r_r(d, s) \ |
394 | EOP_CMP_REG(A_COND_AL,d,s,A_AM1_LSL,0) |
395 | |
396 | #define emith_addf_r_r(d, s) \ |
397 | EOP_ADD_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
398 | |
80599a42 |
399 | #define emith_subf_r_r(d, s) \ |
400 | EOP_SUB_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
65c75cb0 |
401 | |
3863edbd |
402 | #define emith_adcf_r_r(d, s) \ |
403 | EOP_ADC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
404 | |
405 | #define emith_sbcf_r_r(d, s) \ |
406 | EOP_SBC_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
407 | |
8796b7ee |
408 | #define emith_eorf_r_r(d, s) \ |
409 | EOP_EOR_REG(A_COND_AL,1,d,d,s,A_AM1_LSL,0) |
410 | |
65c75cb0 |
411 | #define emith_move_r_imm(r, imm) \ |
80599a42 |
412 | emith_op_imm(A_COND_AL, 0, A_OP_MOV, r, imm) |
65c75cb0 |
413 | |
414 | #define emith_add_r_imm(r, imm) \ |
80599a42 |
415 | emith_op_imm(A_COND_AL, 0, A_OP_ADD, r, imm) |
65c75cb0 |
416 | |
417 | #define emith_sub_r_imm(r, imm) \ |
80599a42 |
418 | emith_op_imm(A_COND_AL, 0, A_OP_SUB, r, imm) |
419 | |
420 | #define emith_bic_r_imm(r, imm) \ |
421 | emith_op_imm(A_COND_AL, 0, A_OP_BIC, r, imm) |
422 | |
52d759c3 |
423 | #define emith_and_r_imm(r, imm) \ |
424 | emith_op_imm(A_COND_AL, 0, A_OP_AND, r, imm) |
425 | |
80599a42 |
426 | #define emith_or_r_imm(r, imm) \ |
427 | emith_op_imm(A_COND_AL, 0, A_OP_ORR, r, imm) |
428 | |
52d759c3 |
429 | #define emith_eor_r_imm(r, imm) \ |
430 | emith_op_imm(A_COND_AL, 0, A_OP_EOR, r, imm) |
431 | |
ed8cf79b |
432 | // note: only use 8bit imm for these |
80599a42 |
433 | #define emith_tst_r_imm(r, imm) \ |
ed8cf79b |
434 | emith_top_imm(A_COND_AL, A_OP_TST, r, imm) |
435 | |
8796b7ee |
436 | #define emith_cmp_r_imm(r, imm) { \ |
437 | u32 op = A_OP_CMP, imm_ = imm; \ |
438 | if (~imm_ < 0x100) { \ |
439 | imm_ = ~imm_; \ |
440 | op = A_OP_CMN; \ |
441 | } \ |
442 | emith_top_imm(A_COND_AL, op, r, imm); \ |
443 | } |
80599a42 |
444 | |
445 | #define emith_subf_r_imm(r, imm) \ |
446 | emith_op_imm(A_COND_AL, 1, A_OP_SUB, r, imm) |
447 | |
8796b7ee |
448 | #define emith_move_r_imm_c(cond, r, imm) \ |
449 | emith_op_imm(cond, 0, A_OP_MOV, r, imm) |
450 | |
80599a42 |
451 | #define emith_add_r_imm_c(cond, r, imm) \ |
452 | emith_op_imm(cond, 0, A_OP_ADD, r, imm) |
453 | |
454 | #define emith_sub_r_imm_c(cond, r, imm) \ |
455 | emith_op_imm(cond, 0, A_OP_SUB, r, imm) |
456 | |
457 | #define emith_or_r_imm_c(cond, r, imm) \ |
458 | emith_op_imm(cond, 0, A_OP_ORR, r, imm) |
459 | |
f0d7b1fa |
460 | #define emith_eor_r_imm_c(cond, r, imm) \ |
461 | emith_op_imm(cond, 0, A_OP_EOR, r, imm) |
462 | |
3863edbd |
463 | #define emith_bic_r_imm_c(cond, r, imm) \ |
464 | emith_op_imm(cond, 0, A_OP_BIC, r, imm) |
465 | |
52d759c3 |
466 | #define emith_move_r_imm_s8(r, imm) { \ |
467 | if ((imm) & 0x80) \ |
468 | EOP_MVN_IMM(r, 0, ((imm) ^ 0xff)); \ |
469 | else \ |
470 | EOP_MOV_IMM(r, 0, imm); \ |
471 | } |
472 | |
473 | #define emith_and_r_r_imm(d, s, imm) \ |
474 | emith_op_imm2(A_COND_AL, 0, A_OP_AND, d, s, imm) |
475 | |
e05b81fc |
476 | #define emith_add_r_r_imm(d, s, imm) \ |
477 | emith_op_imm2(A_COND_AL, 0, A_OP_ADD, d, s, imm) |
478 | |
479 | #define emith_sub_r_r_imm(d, s, imm) \ |
480 | emith_op_imm2(A_COND_AL, 0, A_OP_SUB, d, s, imm) |
481 | |
52d759c3 |
482 | #define emith_neg_r_r(d, s) \ |
483 | EOP_RSB_IMM(d, s, 0, 0) |
484 | |
80599a42 |
485 | #define emith_lsl(d, s, cnt) \ |
486 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSL,cnt) |
487 | |
488 | #define emith_lsr(d, s, cnt) \ |
489 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_LSR,cnt) |
490 | |
8796b7ee |
491 | #define emith_asr(d, s, cnt) \ |
492 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ASR,cnt) |
493 | |
b081408f |
494 | #define emith_ror_c(cond, d, s, cnt) \ |
495 | EOP_MOV_REG(cond,0,d,s,A_AM1_ROR,cnt) |
496 | |
ed8cf79b |
497 | #define emith_ror(d, s, cnt) \ |
b081408f |
498 | emith_ror_c(A_COND_AL, d, s, cnt) |
ed8cf79b |
499 | |
52d759c3 |
500 | #define emith_rol(d, s, cnt) \ |
501 | EOP_MOV_REG(A_COND_AL,0,d,s,A_AM1_ROR,32-(cnt)); \ |
502 | |
3863edbd |
503 | #define emith_lslf(d, s, cnt) \ |
504 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSL,cnt) |
505 | |
ed8cf79b |
506 | #define emith_lsrf(d, s, cnt) \ |
507 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_LSR,cnt) |
508 | |
80599a42 |
509 | #define emith_asrf(d, s, cnt) \ |
510 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ASR,cnt) |
511 | |
ed8cf79b |
512 | // note: only C flag updated correctly |
513 | #define emith_rolf(d, s, cnt) { \ |
514 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,32-(cnt)); \ |
515 | /* we don't have ROL so we shift to get the right carry */ \ |
516 | EOP_TST_REG(A_COND_AL,d,d,A_AM1_LSR,1); \ |
517 | } |
518 | |
519 | #define emith_rorf(d, s, cnt) \ |
520 | EOP_MOV_REG(A_COND_AL,1,d,s,A_AM1_ROR,cnt) |
521 | |
522 | #define emith_rolcf(d) \ |
523 | emith_adcf_r_r(d, d) |
524 | |
525 | #define emith_rorcf(d) \ |
526 | EOP_MOV_REG(A_COND_AL,1,d,d,A_AM1_ROR,0) /* ROR #0 -> RRX */ |
527 | |
52d759c3 |
528 | #define emith_negcf_r_r(d, s) \ |
529 | EOP_C_DOP_IMM(A_COND_AL,A_OP_RSC,1,s,d,0,0) |
530 | |
80599a42 |
531 | #define emith_mul(d, s1, s2) { \ |
532 | if ((d) != (s1)) /* rd != rm limitation */ \ |
533 | EOP_MUL(d, s1, s2); \ |
534 | else \ |
535 | EOP_MUL(d, s2, s1); \ |
536 | } |
65c75cb0 |
537 | |
3863edbd |
538 | #define emith_mul_u64(dlo, dhi, s1, s2) \ |
539 | EOP_C_UMULL(A_COND_AL,0,dhi,dlo,s1,s2) |
540 | |
541 | #define emith_mul_s64(dlo, dhi, s1, s2) \ |
542 | EOP_C_SMULL(A_COND_AL,0,dhi,dlo,s1,s2) |
543 | |
f0d7b1fa |
544 | #define emith_mula_s64(dlo, dhi, s1, s2) \ |
545 | EOP_C_SMLAL(A_COND_AL,0,dhi,dlo,s1,s2) |
546 | |
3863edbd |
547 | // misc |
b081408f |
548 | #define emith_read_r_r_offs_c(cond, r, rs, offs) \ |
549 | EOP_LDR_IMM2(cond, r, rs, offs) |
550 | |
551 | #define emith_read8_r_r_offs_c(cond, r, rs, offs) \ |
552 | EOP_LDRB_IMM2(cond, r, rs, offs) |
553 | |
554 | #define emith_read16_r_r_offs_c(cond, r, rs, offs) \ |
555 | EOP_LDRH_IMM2(cond, r, rs, offs) |
556 | |
557 | #define emith_read_r_r_offs(r, rs, offs) \ |
558 | emith_read_r_r_offs_c(A_COND_AL, r, rs, offs) |
559 | |
560 | #define emith_read8_r_r_offs(r, rs, offs) \ |
561 | emith_read8_r_r_offs_c(A_COND_AL, r, rs, offs) |
562 | |
563 | #define emith_read16_r_r_offs(r, rs, offs) \ |
564 | emith_read16_r_r_offs_c(A_COND_AL, r, rs, offs) |
565 | |
65c75cb0 |
566 | #define emith_ctx_read(r, offs) \ |
b081408f |
567 | emith_read_r_r_offs(r, CONTEXT_REG, offs) |
65c75cb0 |
568 | |
569 | #define emith_ctx_write(r, offs) \ |
570 | EOP_STR_IMM(r, CONTEXT_REG, offs) |
571 | |
8b4f38f4 |
572 | #define emith_ctx_do_multiple(op, r, offs, count, tmpr) do { \ |
573 | int v_, r_ = r, c_ = count, b_ = CONTEXT_REG; \ |
574 | for (v_ = 0; c_; c_--, r_++) \ |
575 | v_ |= 1 << r_; \ |
576 | if ((offs) != 0) { \ |
577 | EOP_ADD_IMM(tmpr,CONTEXT_REG,30/2,(offs)>>2);\ |
578 | b_ = tmpr; \ |
579 | } \ |
580 | op(b_,v_); \ |
8796b7ee |
581 | } while(0) |
582 | |
8b4f38f4 |
583 | #define emith_ctx_read_multiple(r, offs, count, tmpr) \ |
584 | emith_ctx_do_multiple(EOP_LDMIA, r, offs, count, tmpr) |
585 | |
586 | #define emith_ctx_write_multiple(r, offs, count, tmpr) \ |
587 | emith_ctx_do_multiple(EOP_STMIA, r, offs, count, tmpr) |
588 | |
f0d7b1fa |
589 | #define emith_clear_msb_c(cond, d, s, count) { \ |
80599a42 |
590 | u32 t; \ |
591 | if ((count) <= 8) { \ |
592 | t = (count) - 8; \ |
593 | t = (0xff << t) & 0xff; \ |
594 | EOP_BIC_IMM(d,s,8/2,t); \ |
f0d7b1fa |
595 | EOP_C_DOP_IMM(cond,A_OP_BIC,0,s,d,8/2,t); \ |
80599a42 |
596 | } else if ((count) >= 24) { \ |
597 | t = (count) - 24; \ |
598 | t = 0xff >> t; \ |
599 | EOP_AND_IMM(d,s,0,t); \ |
f0d7b1fa |
600 | EOP_C_DOP_IMM(cond,A_OP_AND,0,s,d,0,t); \ |
80599a42 |
601 | } else { \ |
f0d7b1fa |
602 | EOP_MOV_REG(cond,0,d,s,A_AM1_LSL,count); \ |
603 | EOP_MOV_REG(cond,0,d,d,A_AM1_LSR,count); \ |
80599a42 |
604 | } \ |
605 | } |
606 | |
f0d7b1fa |
607 | #define emith_clear_msb(d, s, count) \ |
608 | emith_clear_msb_c(A_COND_AL, d, s, count) |
609 | |
80599a42 |
610 | #define emith_sext(d, s, bits) { \ |
611 | EOP_MOV_REG_LSL(d,s,32 - (bits)); \ |
612 | EOP_MOV_REG_ASR(d,d,32 - (bits)); \ |
613 | } |
614 | |
615 | #define host_arg2reg(rd, arg) \ |
616 | rd = arg |
617 | |
65c75cb0 |
618 | // upto 4 args |
619 | #define emith_pass_arg_r(arg, reg) \ |
620 | EOP_MOV_REG_SIMPLE(arg, reg) |
621 | |
622 | #define emith_pass_arg_imm(arg, imm) \ |
623 | emith_move_r_imm(arg, imm) |
624 | |
e05b81fc |
625 | #define emith_jump(target) \ |
626 | emith_jump_cond(A_COND_AL, target) |
65c75cb0 |
627 | |
44e6452e |
628 | #define emith_jump_patchable(target) \ |
629 | emith_jump(target) |
630 | |
65c75cb0 |
631 | #define emith_jump_cond(cond, target) \ |
632 | emith_xbranch(cond, target, 0) |
633 | |
44e6452e |
634 | #define emith_jump_cond_patchable(cond, target) \ |
635 | emith_jump_cond(cond, target) |
18b94127 |
636 | |
637 | #define emith_jump_patch(ptr, target) do { \ |
638 | u32 *ptr_ = ptr; \ |
44e6452e |
639 | u32 val_ = (u32 *)(target) - ptr_ - 2; \ |
640 | *ptr_ = (*ptr_ & 0xff000000) | (val_ & 0x00ffffff); \ |
18b94127 |
641 | } while (0) |
642 | |
e05b81fc |
643 | #define emith_jump_reg_c(cond, r) \ |
644 | EOP_C_BX(cond, r) |
645 | |
8796b7ee |
646 | #define emith_jump_reg(r) \ |
e05b81fc |
647 | emith_jump_reg_c(A_COND_AL, r) |
648 | |
649 | #define emith_jump_ctx_c(cond, offs) \ |
650 | EOP_LDR_IMM2(cond,15,CONTEXT_REG,offs) |
651 | |
652 | #define emith_jump_ctx(offs) \ |
653 | emith_jump_ctx_c(A_COND_AL, offs) |
654 | |
655 | #define emith_call_cond(cond, target) \ |
656 | emith_xbranch(cond, target, 1) |
657 | |
658 | #define emith_call(target) \ |
659 | emith_call_cond(A_COND_AL, target) |
660 | |
661 | #define emith_call_ctx(offs) { \ |
662 | emith_move_r_r(14, 15); \ |
663 | emith_jump_ctx(offs); \ |
664 | } |
665 | |
666 | #define emith_ret_c(cond) \ |
667 | emith_jump_reg_c(cond, 14) |
668 | |
669 | #define emith_ret() \ |
670 | emith_ret_c(A_COND_AL) |
671 | |
672 | #define emith_ret_to_ctx(offs) \ |
673 | emith_ctx_write(14, offs) |
8796b7ee |
674 | |
65c75cb0 |
675 | /* SH2 drc specific */ |
8796b7ee |
676 | #define emith_sh2_drc_entry() \ |
8b4f38f4 |
677 | EOP_STMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M) |
8796b7ee |
678 | |
679 | #define emith_sh2_drc_exit() \ |
8b4f38f4 |
680 | EOP_LDMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R15M) |
8796b7ee |
681 | |
e05b81fc |
682 | #define emith_sh2_wcall(a, tab, ret_ptr) { \ |
683 | int val_ = (char *)(ret_ptr) - (char *)tcache_ptr - 2*4; \ |
684 | if (val_ >= 0) \ |
685 | emith_add_r_r_imm(14, 15, val_); \ |
686 | else if (val_ < 0) \ |
687 | emith_sub_r_r_imm(14, 15, -val_); \ |
688 | emith_lsr(12, a, SH2_WRITE_SHIFT); \ |
689 | EOP_LDR_REG_LSL(A_COND_AL,12,tab,12,2); \ |
690 | emith_ctx_read(2, offsetof(SH2, is_slave)); \ |
691 | emith_jump_reg(12); \ |
692 | } |
693 | |
80599a42 |
694 | #define emith_sh2_dtbf_loop() { \ |
695 | int cr, rn; \ |
52d759c3 |
696 | int tmp_ = rcache_get_tmp(); \ |
80599a42 |
697 | cr = rcache_get_reg(SHR_SR, RC_GR_RMW); \ |
698 | rn = rcache_get_reg((op >> 8) & 0x0f, RC_GR_RMW); \ |
699 | emith_sub_r_imm(rn, 1); /* sub rn, #1 */ \ |
700 | emith_bic_r_imm(cr, 1); /* bic cr, #1 */ \ |
701 | emith_sub_r_imm(cr, (cycles+1) << 12); /* sub cr, #(cycles+1)<<12 */ \ |
702 | cycles = 0; \ |
52d759c3 |
703 | emith_asrf(tmp_, cr, 2+12); /* movs tmp_, cr, asr #2+12 */\ |
704 | EOP_MOV_IMM_C(A_COND_MI,tmp_,0,0); /* movmi tmp_, #0 */ \ |
80599a42 |
705 | emith_lsl(cr, cr, 20); /* mov cr, cr, lsl #20 */ \ |
706 | emith_lsr(cr, cr, 20); /* mov cr, cr, lsr #20 */ \ |
52d759c3 |
707 | emith_subf_r_r(rn, tmp_); /* subs rn, tmp_ */ \ |
708 | EOP_RSB_IMM_C(A_COND_LS,tmp_,rn,0,0); /* rsbls tmp_, rn, #0 */ \ |
709 | EOP_ORR_REG(A_COND_LS,0,cr,cr,tmp_,A_AM1_LSL,12+2); /* orrls cr,tmp_,lsl #12+2 */\ |
80599a42 |
710 | EOP_ORR_IMM_C(A_COND_LS,cr,cr,0,1); /* orrls cr, #1 */ \ |
711 | EOP_MOV_IMM_C(A_COND_LS,rn,0,0); /* movls rn, #0 */ \ |
52d759c3 |
712 | rcache_free_tmp(tmp_); \ |
80599a42 |
713 | } |
65c75cb0 |
714 | |
18b94127 |
715 | #define emith_write_sr(sr, srcr) { \ |
716 | emith_lsr(sr, sr, 10); \ |
717 | emith_or_r_r_r_lsl(sr, sr, srcr, 22); \ |
718 | emith_ror(sr, sr, 22); \ |
ed8cf79b |
719 | } |
720 | |
721 | #define emith_carry_to_t(srr, is_sub) { \ |
722 | if (is_sub) { /* has inverted C on ARM */ \ |
723 | emith_or_r_imm_c(A_COND_CC, srr, 1); \ |
724 | emith_bic_r_imm_c(A_COND_CS, srr, 1); \ |
725 | } else { \ |
726 | emith_or_r_imm_c(A_COND_CS, srr, 1); \ |
727 | emith_bic_r_imm_c(A_COND_CC, srr, 1); \ |
728 | } \ |
729 | } |
f0d7b1fa |
730 | |
8b4f38f4 |
731 | #define emith_tpop_carry(sr, is_sub) { \ |
732 | if (is_sub) \ |
733 | emith_eor_r_imm(sr, 1); \ |
734 | emith_lsrf(sr, sr, 1); \ |
735 | } |
736 | |
737 | #define emith_tpush_carry(sr, is_sub) { \ |
738 | emith_adc_r_r(sr, sr); \ |
739 | if (is_sub) \ |
740 | emith_eor_r_imm(sr, 1); \ |
741 | } |
742 | |
f0d7b1fa |
743 | /* |
744 | * if Q |
745 | * t = carry(Rn += Rm) |
746 | * else |
747 | * t = carry(Rn -= Rm) |
748 | * T ^= t |
749 | */ |
750 | #define emith_sh2_div1_step(rn, rm, sr) { \ |
751 | void *jmp0, *jmp1; \ |
752 | emith_tst_r_imm(sr, Q); /* if (Q ^ M) */ \ |
753 | JMP_POS(jmp0); /* beq do_sub */ \ |
754 | emith_addf_r_r(rn, rm); \ |
755 | emith_eor_r_imm_c(A_COND_CS, sr, T); \ |
756 | JMP_POS(jmp1); /* b done */ \ |
757 | JMP_EMIT(A_COND_EQ, jmp0); /* do_sub: */ \ |
758 | emith_subf_r_r(rn, rm); \ |
759 | emith_eor_r_imm_c(A_COND_CC, sr, T); \ |
760 | JMP_EMIT(A_COND_AL, jmp1); /* done: */ \ |
761 | } |
762 | |