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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | #ifdef USE_X86_ASM |
| 2 | #if defined(__i386__) || defined(__386__) |
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| 3 | |||
| 4 | #include "main/imports.h" |
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| 5 | #include "x86sse.h" |
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| 6 | |||
| 7 | #define DISASSEM 0 |
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| 8 | #define X86_TWOB 0x0f |
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| 9 | |||
| 10 | #if 0 |
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| 11 | static unsigned char *cptr( void (*label)() ) |
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| 12 | { |
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| 13 | return (unsigned char *)(unsigned long)label; |
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| 14 | } |
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| 15 | #endif |
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| 16 | |||
| 17 | |||
| 18 | static void do_realloc( struct x86_function *p ) |
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| 19 | { |
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| 20 | if (p->size == 0) { |
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| 21 | p->size = 1024; |
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| 22 | p->store = _mesa_exec_malloc(p->size); |
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| 23 | p->csr = p->store; |
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| 24 | } |
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| 25 | else { |
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| 26 | unsigned used = p->csr - p->store; |
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| 27 | unsigned char *tmp = p->store; |
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| 28 | p->size *= 2; |
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| 29 | p->store = _mesa_exec_malloc(p->size); |
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| 30 | memcpy(p->store, tmp, used); |
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| 31 | p->csr = p->store + used; |
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| 32 | _mesa_exec_free(tmp); |
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| 33 | } |
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| 34 | } |
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| 35 | |||
| 36 | /* Emit bytes to the instruction stream: |
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| 37 | */ |
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| 38 | static unsigned char *reserve( struct x86_function *p, int bytes ) |
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| 39 | { |
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| 40 | if (p->csr + bytes - p->store > p->size) |
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| 41 | do_realloc(p); |
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| 42 | |||
| 43 | { |
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| 44 | unsigned char *csr = p->csr; |
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| 45 | p->csr += bytes; |
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| 46 | return csr; |
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| 47 | } |
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| 48 | } |
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| 49 | |||
| 50 | |||
| 51 | |||
| 52 | static void emit_1b( struct x86_function *p, char b0 ) |
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| 53 | { |
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| 54 | char *csr = (char *)reserve(p, 1); |
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| 55 | *csr = b0; |
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| 56 | } |
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| 57 | |||
| 58 | static void emit_1i( struct x86_function *p, int i0 ) |
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| 59 | { |
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| 60 | int *icsr = (int *)reserve(p, sizeof(i0)); |
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| 61 | *icsr = i0; |
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| 62 | } |
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| 63 | |||
| 64 | static void emit_1ub( struct x86_function *p, unsigned char b0 ) |
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| 65 | { |
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| 66 | unsigned char *csr = reserve(p, 1); |
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| 67 | *csr++ = b0; |
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| 68 | } |
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| 69 | |||
| 70 | static void emit_2ub( struct x86_function *p, unsigned char b0, unsigned char b1 ) |
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| 71 | { |
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| 72 | unsigned char *csr = reserve(p, 2); |
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| 73 | *csr++ = b0; |
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| 74 | *csr++ = b1; |
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| 75 | } |
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| 76 | |||
| 77 | static void emit_3ub( struct x86_function *p, unsigned char b0, unsigned char b1, unsigned char b2 ) |
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| 78 | { |
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| 79 | unsigned char *csr = reserve(p, 3); |
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| 80 | *csr++ = b0; |
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| 81 | *csr++ = b1; |
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| 82 | *csr++ = b2; |
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| 83 | } |
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| 84 | |||
| 85 | |||
| 86 | /* Build a modRM byte + possible displacement. No treatment of SIB |
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| 87 | * indexing. BZZT - no way to encode an absolute address. |
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| 88 | */ |
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| 89 | static void emit_modrm( struct x86_function *p, |
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| 90 | struct x86_reg reg, |
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| 91 | struct x86_reg regmem ) |
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| 92 | { |
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| 93 | unsigned char val = 0; |
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| 94 | |||
| 95 | assert(reg.mod == mod_REG); |
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| 96 | |||
| 97 | val |= regmem.mod << 6; /* mod field */ |
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| 98 | val |= reg.idx << 3; /* reg field */ |
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| 99 | val |= regmem.idx; /* r/m field */ |
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| 100 | |||
| 101 | emit_1ub(p, val); |
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| 102 | |||
| 103 | /* Oh-oh we've stumbled into the SIB thing. |
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| 104 | */ |
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| 105 | if (regmem.file == file_REG32 && |
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| 106 | regmem.idx == reg_SP) { |
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| 107 | emit_1ub(p, 0x24); /* simplistic! */ |
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| 108 | } |
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| 109 | |||
| 110 | switch (regmem.mod) { |
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| 111 | case mod_REG: |
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| 112 | case mod_INDIRECT: |
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| 113 | break; |
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| 114 | case mod_DISP8: |
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| 115 | emit_1b(p, regmem.disp); |
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| 116 | break; |
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| 117 | case mod_DISP32: |
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| 118 | emit_1i(p, regmem.disp); |
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| 119 | break; |
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| 120 | default: |
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| 121 | assert(0); |
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| 122 | break; |
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| 123 | } |
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| 124 | } |
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| 125 | |||
| 126 | |||
| 127 | static void emit_modrm_noreg( struct x86_function *p, |
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| 128 | unsigned op, |
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| 129 | struct x86_reg regmem ) |
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| 130 | { |
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| 131 | struct x86_reg dummy = x86_make_reg(file_REG32, op); |
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| 132 | emit_modrm(p, dummy, regmem); |
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| 133 | } |
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| 134 | |||
| 135 | /* Many x86 instructions have two opcodes to cope with the situations |
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| 136 | * where the destination is a register or memory reference |
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| 137 | * respectively. This function selects the correct opcode based on |
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| 138 | * the arguments presented. |
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| 139 | */ |
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| 140 | static void emit_op_modrm( struct x86_function *p, |
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| 141 | unsigned char op_dst_is_reg, |
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| 142 | unsigned char op_dst_is_mem, |
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| 143 | struct x86_reg dst, |
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| 144 | struct x86_reg src ) |
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| 145 | { |
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| 146 | switch (dst.mod) { |
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| 147 | case mod_REG: |
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| 148 | emit_1ub(p, op_dst_is_reg); |
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| 149 | emit_modrm(p, dst, src); |
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| 150 | break; |
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| 151 | case mod_INDIRECT: |
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| 152 | case mod_DISP32: |
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| 153 | case mod_DISP8: |
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| 154 | assert(src.mod == mod_REG); |
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| 155 | emit_1ub(p, op_dst_is_mem); |
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| 156 | emit_modrm(p, src, dst); |
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| 157 | break; |
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| 158 | default: |
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| 159 | assert(0); |
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| 160 | break; |
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| 161 | } |
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| 162 | } |
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| 163 | |||
| 164 | |||
| 165 | |||
| 166 | |||
| 167 | |||
| 168 | |||
| 169 | |||
| 170 | /* Create and manipulate registers and regmem values: |
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| 171 | */ |
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| 172 | struct x86_reg x86_make_reg( enum x86_reg_file file, |
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| 173 | enum x86_reg_name idx ) |
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| 174 | { |
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| 175 | struct x86_reg reg; |
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| 176 | |||
| 177 | reg.file = file; |
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| 178 | reg.idx = idx; |
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| 179 | reg.mod = mod_REG; |
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| 180 | reg.disp = 0; |
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| 181 | |||
| 182 | return reg; |
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| 183 | } |
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| 184 | |||
| 185 | struct x86_reg x86_make_disp( struct x86_reg reg, |
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| 186 | int disp ) |
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| 187 | { |
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| 188 | assert(reg.file == file_REG32); |
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| 189 | |||
| 190 | if (reg.mod == mod_REG) |
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| 191 | reg.disp = disp; |
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| 192 | else |
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| 193 | reg.disp += disp; |
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| 194 | |||
| 195 | if (reg.disp == 0) |
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| 196 | reg.mod = mod_INDIRECT; |
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| 197 | else if (reg.disp <= 127 && reg.disp >= -128) |
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| 198 | reg.mod = mod_DISP8; |
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| 199 | else |
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| 200 | reg.mod = mod_DISP32; |
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| 201 | |||
| 202 | return reg; |
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| 203 | } |
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| 204 | |||
| 205 | struct x86_reg x86_deref( struct x86_reg reg ) |
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| 206 | { |
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| 207 | return x86_make_disp(reg, 0); |
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| 208 | } |
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| 209 | |||
| 210 | struct x86_reg x86_get_base_reg( struct x86_reg reg ) |
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| 211 | { |
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| 212 | return x86_make_reg( reg.file, reg.idx ); |
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| 213 | } |
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| 214 | |||
| 215 | unsigned char *x86_get_label( struct x86_function *p ) |
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| 216 | { |
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| 217 | return p->csr; |
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| 218 | } |
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| 219 | |||
| 220 | |||
| 221 | |||
| 222 | /*********************************************************************** |
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| 223 | * x86 instructions |
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| 224 | */ |
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| 225 | |||
| 226 | |||
| 227 | void x86_jcc( struct x86_function *p, |
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| 228 | enum x86_cc cc, |
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| 229 | unsigned char *label ) |
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| 230 | { |
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| 231 | int offset = label - (x86_get_label(p) + 2); |
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| 232 | |||
| 233 | if (offset <= 127 && offset >= -128) { |
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| 234 | emit_1ub(p, 0x70 + cc); |
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| 235 | emit_1b(p, (char) offset); |
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| 236 | } |
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| 237 | else { |
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| 238 | offset = label - (x86_get_label(p) + 6); |
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| 239 | emit_2ub(p, 0x0f, 0x80 + cc); |
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| 240 | emit_1i(p, offset); |
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| 241 | } |
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| 242 | } |
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| 243 | |||
| 244 | /* Always use a 32bit offset for forward jumps: |
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| 245 | */ |
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| 246 | unsigned char *x86_jcc_forward( struct x86_function *p, |
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| 247 | enum x86_cc cc ) |
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| 248 | { |
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| 249 | emit_2ub(p, 0x0f, 0x80 + cc); |
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| 250 | emit_1i(p, 0); |
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| 251 | return x86_get_label(p); |
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| 252 | } |
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| 253 | |||
| 254 | unsigned char *x86_jmp_forward( struct x86_function *p) |
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| 255 | { |
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| 256 | emit_1ub(p, 0xe9); |
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| 257 | emit_1i(p, 0); |
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| 258 | return x86_get_label(p); |
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| 259 | } |
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| 260 | |||
| 261 | unsigned char *x86_call_forward( struct x86_function *p) |
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| 262 | { |
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| 263 | emit_1ub(p, 0xe8); |
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| 264 | emit_1i(p, 0); |
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| 265 | return x86_get_label(p); |
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| 266 | } |
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| 267 | |||
| 268 | /* Fixup offset from forward jump: |
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| 269 | */ |
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| 270 | void x86_fixup_fwd_jump( struct x86_function *p, |
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| 271 | unsigned char *fixup ) |
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| 272 | { |
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| 273 | *(int *)(fixup - 4) = x86_get_label(p) - fixup; |
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| 274 | } |
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| 275 | |||
| 276 | void x86_jmp( struct x86_function *p, unsigned char *label) |
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| 277 | { |
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| 278 | emit_1ub(p, 0xe9); |
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| 279 | emit_1i(p, label - x86_get_label(p) - 4); |
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| 280 | } |
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| 281 | |||
| 282 | #if 0 |
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| 283 | /* This doesn't work once we start reallocating & copying the |
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| 284 | * generated code on buffer fills, because the call is relative to the |
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| 285 | * current pc. |
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| 286 | */ |
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| 287 | void x86_call( struct x86_function *p, void (*label)()) |
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| 288 | { |
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| 289 | emit_1ub(p, 0xe8); |
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| 290 | emit_1i(p, cptr(label) - x86_get_label(p) - 4); |
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| 291 | } |
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| 292 | #else |
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| 293 | void x86_call( struct x86_function *p, struct x86_reg reg) |
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| 294 | { |
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| 295 | emit_1ub(p, 0xff); |
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| 296 | emit_modrm_noreg(p, 2, reg); |
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| 297 | } |
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| 298 | #endif |
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| 299 | |||
| 300 | |||
| 301 | /* michal: |
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| 302 | * Temporary. As I need immediate operands, and dont want to mess with the codegen, |
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| 303 | * I load the immediate into general purpose register and use it. |
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| 304 | */ |
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| 305 | void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm ) |
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| 306 | { |
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| 307 | assert(dst.mod == mod_REG); |
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| 308 | emit_1ub(p, 0xb8 + dst.idx); |
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| 309 | emit_1i(p, imm); |
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| 310 | } |
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| 311 | |||
| 312 | void x86_push( struct x86_function *p, |
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| 313 | struct x86_reg reg ) |
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| 314 | { |
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| 315 | assert(reg.mod == mod_REG); |
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| 316 | emit_1ub(p, 0x50 + reg.idx); |
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| 317 | p->stack_offset += 4; |
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| 318 | } |
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| 319 | |||
| 320 | void x86_pop( struct x86_function *p, |
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| 321 | struct x86_reg reg ) |
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| 322 | { |
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| 323 | assert(reg.mod == mod_REG); |
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| 324 | emit_1ub(p, 0x58 + reg.idx); |
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| 325 | p->stack_offset -= 4; |
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| 326 | } |
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| 327 | |||
| 328 | void x86_inc( struct x86_function *p, |
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| 329 | struct x86_reg reg ) |
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| 330 | { |
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| 331 | assert(reg.mod == mod_REG); |
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| 332 | emit_1ub(p, 0x40 + reg.idx); |
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| 333 | } |
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| 334 | |||
| 335 | void x86_dec( struct x86_function *p, |
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| 336 | struct x86_reg reg ) |
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| 337 | { |
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| 338 | assert(reg.mod == mod_REG); |
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| 339 | emit_1ub(p, 0x48 + reg.idx); |
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| 340 | } |
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| 341 | |||
| 342 | void x86_ret( struct x86_function *p ) |
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| 343 | { |
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| 344 | emit_1ub(p, 0xc3); |
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| 345 | } |
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| 346 | |||
| 347 | void x86_sahf( struct x86_function *p ) |
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| 348 | { |
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| 349 | emit_1ub(p, 0x9e); |
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| 350 | } |
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| 351 | |||
| 352 | void x86_mov( struct x86_function *p, |
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| 353 | struct x86_reg dst, |
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| 354 | struct x86_reg src ) |
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| 355 | { |
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| 356 | emit_op_modrm( p, 0x8b, 0x89, dst, src ); |
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| 357 | } |
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| 358 | |||
| 359 | void x86_xor( struct x86_function *p, |
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| 360 | struct x86_reg dst, |
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| 361 | struct x86_reg src ) |
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| 362 | { |
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| 363 | emit_op_modrm( p, 0x33, 0x31, dst, src ); |
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| 364 | } |
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| 365 | |||
| 366 | void x86_cmp( struct x86_function *p, |
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| 367 | struct x86_reg dst, |
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| 368 | struct x86_reg src ) |
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| 369 | { |
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| 370 | emit_op_modrm( p, 0x3b, 0x39, dst, src ); |
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| 371 | } |
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| 372 | |||
| 373 | void x86_lea( struct x86_function *p, |
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| 374 | struct x86_reg dst, |
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| 375 | struct x86_reg src ) |
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| 376 | { |
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| 377 | emit_1ub(p, 0x8d); |
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| 378 | emit_modrm( p, dst, src ); |
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| 379 | } |
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| 380 | |||
| 381 | void x86_test( struct x86_function *p, |
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| 382 | struct x86_reg dst, |
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| 383 | struct x86_reg src ) |
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| 384 | { |
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| 385 | emit_1ub(p, 0x85); |
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| 386 | emit_modrm( p, dst, src ); |
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| 387 | } |
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| 388 | |||
| 389 | void x86_add( struct x86_function *p, |
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| 390 | struct x86_reg dst, |
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| 391 | struct x86_reg src ) |
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| 392 | { |
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| 393 | emit_op_modrm(p, 0x03, 0x01, dst, src ); |
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| 394 | } |
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| 395 | |||
| 396 | void x86_mul( struct x86_function *p, |
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| 397 | struct x86_reg src ) |
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| 398 | { |
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| 399 | assert (src.file == file_REG32 && src.mod == mod_REG); |
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| 400 | emit_op_modrm(p, 0xf7, 0, x86_make_reg (file_REG32, reg_SP), src ); |
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| 401 | } |
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| 402 | |||
| 403 | void x86_sub( struct x86_function *p, |
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| 404 | struct x86_reg dst, |
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| 405 | struct x86_reg src ) |
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| 406 | { |
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| 407 | emit_op_modrm(p, 0x2b, 0x29, dst, src ); |
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| 408 | } |
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| 409 | |||
| 410 | void x86_or( struct x86_function *p, |
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| 411 | struct x86_reg dst, |
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| 412 | struct x86_reg src ) |
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| 413 | { |
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| 414 | emit_op_modrm( p, 0x0b, 0x09, dst, src ); |
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| 415 | } |
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| 416 | |||
| 417 | void x86_and( struct x86_function *p, |
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| 418 | struct x86_reg dst, |
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| 419 | struct x86_reg src ) |
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| 420 | { |
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| 421 | emit_op_modrm( p, 0x23, 0x21, dst, src ); |
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| 422 | } |
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| 423 | |||
| 424 | |||
| 425 | |||
| 426 | /*********************************************************************** |
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| 427 | * SSE instructions |
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| 428 | */ |
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| 429 | |||
| 430 | |||
| 431 | void sse_movss( struct x86_function *p, |
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| 432 | struct x86_reg dst, |
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| 433 | struct x86_reg src ) |
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| 434 | { |
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| 435 | emit_2ub(p, 0xF3, X86_TWOB); |
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| 436 | emit_op_modrm( p, 0x10, 0x11, dst, src ); |
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| 437 | } |
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| 438 | |||
| 439 | void sse_movaps( struct x86_function *p, |
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| 440 | struct x86_reg dst, |
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| 441 | struct x86_reg src ) |
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| 442 | { |
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| 443 | emit_1ub(p, X86_TWOB); |
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| 444 | emit_op_modrm( p, 0x28, 0x29, dst, src ); |
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| 445 | } |
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| 446 | |||
| 447 | void sse_movups( struct x86_function *p, |
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| 448 | struct x86_reg dst, |
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| 449 | struct x86_reg src ) |
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| 450 | { |
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| 451 | emit_1ub(p, X86_TWOB); |
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| 452 | emit_op_modrm( p, 0x10, 0x11, dst, src ); |
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| 453 | } |
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| 454 | |||
| 455 | void sse_movhps( struct x86_function *p, |
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| 456 | struct x86_reg dst, |
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| 457 | struct x86_reg src ) |
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| 458 | { |
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| 459 | assert(dst.mod != mod_REG || src.mod != mod_REG); |
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| 460 | emit_1ub(p, X86_TWOB); |
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| 461 | emit_op_modrm( p, 0x16, 0x17, dst, src ); /* cf movlhps */ |
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| 462 | } |
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| 463 | |||
| 464 | void sse_movlps( struct x86_function *p, |
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| 465 | struct x86_reg dst, |
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| 466 | struct x86_reg src ) |
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| 467 | { |
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| 468 | assert(dst.mod != mod_REG || src.mod != mod_REG); |
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| 469 | emit_1ub(p, X86_TWOB); |
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| 470 | emit_op_modrm( p, 0x12, 0x13, dst, src ); /* cf movhlps */ |
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| 471 | } |
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| 472 | |||
| 473 | void sse_maxps( struct x86_function *p, |
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| 474 | struct x86_reg dst, |
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| 475 | struct x86_reg src ) |
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| 476 | { |
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| 477 | emit_2ub(p, X86_TWOB, 0x5F); |
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| 478 | emit_modrm( p, dst, src ); |
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| 479 | } |
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| 480 | |||
| 481 | void sse_maxss( struct x86_function *p, |
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| 482 | struct x86_reg dst, |
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| 483 | struct x86_reg src ) |
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| 484 | { |
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| 485 | emit_3ub(p, 0xF3, X86_TWOB, 0x5F); |
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| 486 | emit_modrm( p, dst, src ); |
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| 487 | } |
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| 488 | |||
| 489 | void sse_divss( struct x86_function *p, |
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| 490 | struct x86_reg dst, |
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| 491 | struct x86_reg src ) |
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| 492 | { |
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| 493 | emit_3ub(p, 0xF3, X86_TWOB, 0x5E); |
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| 494 | emit_modrm( p, dst, src ); |
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| 495 | } |
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| 496 | |||
| 497 | void sse_minps( struct x86_function *p, |
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| 498 | struct x86_reg dst, |
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| 499 | struct x86_reg src ) |
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| 500 | { |
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| 501 | emit_2ub(p, X86_TWOB, 0x5D); |
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| 502 | emit_modrm( p, dst, src ); |
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| 503 | } |
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| 504 | |||
| 505 | void sse_subps( struct x86_function *p, |
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| 506 | struct x86_reg dst, |
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| 507 | struct x86_reg src ) |
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| 508 | { |
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| 509 | emit_2ub(p, X86_TWOB, 0x5C); |
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| 510 | emit_modrm( p, dst, src ); |
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| 511 | } |
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| 512 | |||
| 513 | void sse_mulps( struct x86_function *p, |
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| 514 | struct x86_reg dst, |
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| 515 | struct x86_reg src ) |
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| 516 | { |
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| 517 | emit_2ub(p, X86_TWOB, 0x59); |
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| 518 | emit_modrm( p, dst, src ); |
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| 519 | } |
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| 520 | |||
| 521 | void sse_mulss( struct x86_function *p, |
||
| 522 | struct x86_reg dst, |
||
| 523 | struct x86_reg src ) |
||
| 524 | { |
||
| 525 | emit_3ub(p, 0xF3, X86_TWOB, 0x59); |
||
| 526 | emit_modrm( p, dst, src ); |
||
| 527 | } |
||
| 528 | |||
| 529 | void sse_addps( struct x86_function *p, |
||
| 530 | struct x86_reg dst, |
||
| 531 | struct x86_reg src ) |
||
| 532 | { |
||
| 533 | emit_2ub(p, X86_TWOB, 0x58); |
||
| 534 | emit_modrm( p, dst, src ); |
||
| 535 | } |
||
| 536 | |||
| 537 | void sse_addss( struct x86_function *p, |
||
| 538 | struct x86_reg dst, |
||
| 539 | struct x86_reg src ) |
||
| 540 | { |
||
| 541 | emit_3ub(p, 0xF3, X86_TWOB, 0x58); |
||
| 542 | emit_modrm( p, dst, src ); |
||
| 543 | } |
||
| 544 | |||
| 545 | void sse_andnps( struct x86_function *p, |
||
| 546 | struct x86_reg dst, |
||
| 547 | struct x86_reg src ) |
||
| 548 | { |
||
| 549 | emit_2ub(p, X86_TWOB, 0x55); |
||
| 550 | emit_modrm( p, dst, src ); |
||
| 551 | } |
||
| 552 | |||
| 553 | void sse_andps( struct x86_function *p, |
||
| 554 | struct x86_reg dst, |
||
| 555 | struct x86_reg src ) |
||
| 556 | { |
||
| 557 | emit_2ub(p, X86_TWOB, 0x54); |
||
| 558 | emit_modrm( p, dst, src ); |
||
| 559 | } |
||
| 560 | |||
| 561 | void sse_rsqrtps( struct x86_function *p, |
||
| 562 | struct x86_reg dst, |
||
| 563 | struct x86_reg src ) |
||
| 564 | { |
||
| 565 | emit_2ub(p, X86_TWOB, 0x52); |
||
| 566 | emit_modrm( p, dst, src ); |
||
| 567 | } |
||
| 568 | |||
| 569 | void sse_rsqrtss( struct x86_function *p, |
||
| 570 | struct x86_reg dst, |
||
| 571 | struct x86_reg src ) |
||
| 572 | { |
||
| 573 | emit_3ub(p, 0xF3, X86_TWOB, 0x52); |
||
| 574 | emit_modrm( p, dst, src ); |
||
| 575 | |||
| 576 | } |
||
| 577 | |||
| 578 | void sse_movhlps( struct x86_function *p, |
||
| 579 | struct x86_reg dst, |
||
| 580 | struct x86_reg src ) |
||
| 581 | { |
||
| 582 | assert(dst.mod == mod_REG && src.mod == mod_REG); |
||
| 583 | emit_2ub(p, X86_TWOB, 0x12); |
||
| 584 | emit_modrm( p, dst, src ); |
||
| 585 | } |
||
| 586 | |||
| 587 | void sse_movlhps( struct x86_function *p, |
||
| 588 | struct x86_reg dst, |
||
| 589 | struct x86_reg src ) |
||
| 590 | { |
||
| 591 | assert(dst.mod == mod_REG && src.mod == mod_REG); |
||
| 592 | emit_2ub(p, X86_TWOB, 0x16); |
||
| 593 | emit_modrm( p, dst, src ); |
||
| 594 | } |
||
| 595 | |||
| 596 | void sse_orps( struct x86_function *p, |
||
| 597 | struct x86_reg dst, |
||
| 598 | struct x86_reg src ) |
||
| 599 | { |
||
| 600 | emit_2ub(p, X86_TWOB, 0x56); |
||
| 601 | emit_modrm( p, dst, src ); |
||
| 602 | } |
||
| 603 | |||
| 604 | void sse_xorps( struct x86_function *p, |
||
| 605 | struct x86_reg dst, |
||
| 606 | struct x86_reg src ) |
||
| 607 | { |
||
| 608 | emit_2ub(p, X86_TWOB, 0x57); |
||
| 609 | emit_modrm( p, dst, src ); |
||
| 610 | } |
||
| 611 | |||
| 612 | void sse_cvtps2pi( struct x86_function *p, |
||
| 613 | struct x86_reg dst, |
||
| 614 | struct x86_reg src ) |
||
| 615 | { |
||
| 616 | assert(dst.file == file_MMX && |
||
| 617 | (src.file == file_XMM || src.mod != mod_REG)); |
||
| 618 | |||
| 619 | p->need_emms = 1; |
||
| 620 | |||
| 621 | emit_2ub(p, X86_TWOB, 0x2d); |
||
| 622 | emit_modrm( p, dst, src ); |
||
| 623 | } |
||
| 624 | |||
| 625 | |||
| 626 | /* Shufps can also be used to implement a reduced swizzle when dest == |
||
| 627 | * arg0. |
||
| 628 | */ |
||
| 629 | void sse_shufps( struct x86_function *p, |
||
| 630 | struct x86_reg dest, |
||
| 631 | struct x86_reg arg0, |
||
| 632 | unsigned char shuf) |
||
| 633 | { |
||
| 634 | emit_2ub(p, X86_TWOB, 0xC6); |
||
| 635 | emit_modrm(p, dest, arg0); |
||
| 636 | emit_1ub(p, shuf); |
||
| 637 | } |
||
| 638 | |||
| 639 | void sse_cmpps( struct x86_function *p, |
||
| 640 | struct x86_reg dest, |
||
| 641 | struct x86_reg arg0, |
||
| 642 | unsigned char cc) |
||
| 643 | { |
||
| 644 | emit_2ub(p, X86_TWOB, 0xC2); |
||
| 645 | emit_modrm(p, dest, arg0); |
||
| 646 | emit_1ub(p, cc); |
||
| 647 | } |
||
| 648 | |||
| 649 | void sse_pmovmskb( struct x86_function *p, |
||
| 650 | struct x86_reg dest, |
||
| 651 | struct x86_reg src) |
||
| 652 | { |
||
| 653 | emit_3ub(p, 0x66, X86_TWOB, 0xD7); |
||
| 654 | emit_modrm(p, dest, src); |
||
| 655 | } |
||
| 656 | |||
| 657 | /*********************************************************************** |
||
| 658 | * SSE2 instructions |
||
| 659 | */ |
||
| 660 | |||
| 661 | /** |
||
| 662 | * Perform a reduced swizzle: |
||
| 663 | */ |
||
| 664 | void sse2_pshufd( struct x86_function *p, |
||
| 665 | struct x86_reg dest, |
||
| 666 | struct x86_reg arg0, |
||
| 667 | unsigned char shuf) |
||
| 668 | { |
||
| 669 | emit_3ub(p, 0x66, X86_TWOB, 0x70); |
||
| 670 | emit_modrm(p, dest, arg0); |
||
| 671 | emit_1ub(p, shuf); |
||
| 672 | } |
||
| 673 | |||
| 674 | void sse2_cvttps2dq( struct x86_function *p, |
||
| 675 | struct x86_reg dst, |
||
| 676 | struct x86_reg src ) |
||
| 677 | { |
||
| 678 | emit_3ub( p, 0xF3, X86_TWOB, 0x5B ); |
||
| 679 | emit_modrm( p, dst, src ); |
||
| 680 | } |
||
| 681 | |||
| 682 | void sse2_cvtps2dq( struct x86_function *p, |
||
| 683 | struct x86_reg dst, |
||
| 684 | struct x86_reg src ) |
||
| 685 | { |
||
| 686 | emit_3ub(p, 0x66, X86_TWOB, 0x5B); |
||
| 687 | emit_modrm( p, dst, src ); |
||
| 688 | } |
||
| 689 | |||
| 690 | void sse2_packssdw( struct x86_function *p, |
||
| 691 | struct x86_reg dst, |
||
| 692 | struct x86_reg src ) |
||
| 693 | { |
||
| 694 | emit_3ub(p, 0x66, X86_TWOB, 0x6B); |
||
| 695 | emit_modrm( p, dst, src ); |
||
| 696 | } |
||
| 697 | |||
| 698 | void sse2_packsswb( struct x86_function *p, |
||
| 699 | struct x86_reg dst, |
||
| 700 | struct x86_reg src ) |
||
| 701 | { |
||
| 702 | emit_3ub(p, 0x66, X86_TWOB, 0x63); |
||
| 703 | emit_modrm( p, dst, src ); |
||
| 704 | } |
||
| 705 | |||
| 706 | void sse2_packuswb( struct x86_function *p, |
||
| 707 | struct x86_reg dst, |
||
| 708 | struct x86_reg src ) |
||
| 709 | { |
||
| 710 | emit_3ub(p, 0x66, X86_TWOB, 0x67); |
||
| 711 | emit_modrm( p, dst, src ); |
||
| 712 | } |
||
| 713 | |||
| 714 | void sse2_rcpps( struct x86_function *p, |
||
| 715 | struct x86_reg dst, |
||
| 716 | struct x86_reg src ) |
||
| 717 | { |
||
| 718 | emit_2ub(p, X86_TWOB, 0x53); |
||
| 719 | emit_modrm( p, dst, src ); |
||
| 720 | } |
||
| 721 | |||
| 722 | void sse2_rcpss( struct x86_function *p, |
||
| 723 | struct x86_reg dst, |
||
| 724 | struct x86_reg src ) |
||
| 725 | { |
||
| 726 | emit_3ub(p, 0xF3, X86_TWOB, 0x53); |
||
| 727 | emit_modrm( p, dst, src ); |
||
| 728 | } |
||
| 729 | |||
| 730 | void sse2_movd( struct x86_function *p, |
||
| 731 | struct x86_reg dst, |
||
| 732 | struct x86_reg src ) |
||
| 733 | { |
||
| 734 | emit_2ub(p, 0x66, X86_TWOB); |
||
| 735 | emit_op_modrm( p, 0x6e, 0x7e, dst, src ); |
||
| 736 | } |
||
| 737 | |||
| 738 | |||
| 739 | |||
| 740 | |||
| 741 | /*********************************************************************** |
||
| 742 | * x87 instructions |
||
| 743 | */ |
||
| 744 | void x87_fist( struct x86_function *p, struct x86_reg dst ) |
||
| 745 | { |
||
| 746 | emit_1ub(p, 0xdb); |
||
| 747 | emit_modrm_noreg(p, 2, dst); |
||
| 748 | } |
||
| 749 | |||
| 750 | void x87_fistp( struct x86_function *p, struct x86_reg dst ) |
||
| 751 | { |
||
| 752 | emit_1ub(p, 0xdb); |
||
| 753 | emit_modrm_noreg(p, 3, dst); |
||
| 754 | } |
||
| 755 | |||
| 756 | void x87_fild( struct x86_function *p, struct x86_reg arg ) |
||
| 757 | { |
||
| 758 | emit_1ub(p, 0xdf); |
||
| 759 | emit_modrm_noreg(p, 0, arg); |
||
| 760 | } |
||
| 761 | |||
| 762 | void x87_fldz( struct x86_function *p ) |
||
| 763 | { |
||
| 764 | emit_2ub(p, 0xd9, 0xee); |
||
| 765 | } |
||
| 766 | |||
| 767 | |||
| 768 | void x87_fldcw( struct x86_function *p, struct x86_reg arg ) |
||
| 769 | { |
||
| 770 | assert(arg.file == file_REG32); |
||
| 771 | assert(arg.mod != mod_REG); |
||
| 772 | emit_1ub(p, 0xd9); |
||
| 773 | emit_modrm_noreg(p, 5, arg); |
||
| 774 | } |
||
| 775 | |||
| 776 | void x87_fld1( struct x86_function *p ) |
||
| 777 | { |
||
| 778 | emit_2ub(p, 0xd9, 0xe8); |
||
| 779 | } |
||
| 780 | |||
| 781 | void x87_fldl2e( struct x86_function *p ) |
||
| 782 | { |
||
| 783 | emit_2ub(p, 0xd9, 0xea); |
||
| 784 | } |
||
| 785 | |||
| 786 | void x87_fldln2( struct x86_function *p ) |
||
| 787 | { |
||
| 788 | emit_2ub(p, 0xd9, 0xed); |
||
| 789 | } |
||
| 790 | |||
| 791 | void x87_fwait( struct x86_function *p ) |
||
| 792 | { |
||
| 793 | emit_1ub(p, 0x9b); |
||
| 794 | } |
||
| 795 | |||
| 796 | void x87_fnclex( struct x86_function *p ) |
||
| 797 | { |
||
| 798 | emit_2ub(p, 0xdb, 0xe2); |
||
| 799 | } |
||
| 800 | |||
| 801 | void x87_fclex( struct x86_function *p ) |
||
| 802 | { |
||
| 803 | x87_fwait(p); |
||
| 804 | x87_fnclex(p); |
||
| 805 | } |
||
| 806 | |||
| 807 | |||
| 808 | static void x87_arith_op( struct x86_function *p, struct x86_reg dst, struct x86_reg arg, |
||
| 809 | unsigned char dst0ub0, |
||
| 810 | unsigned char dst0ub1, |
||
| 811 | unsigned char arg0ub0, |
||
| 812 | unsigned char arg0ub1, |
||
| 813 | unsigned char argmem_noreg) |
||
| 814 | { |
||
| 815 | assert(dst.file == file_x87); |
||
| 816 | |||
| 817 | if (arg.file == file_x87) { |
||
| 818 | if (dst.idx == 0) |
||
| 819 | emit_2ub(p, dst0ub0, dst0ub1+arg.idx); |
||
| 820 | else if (arg.idx == 0) |
||
| 821 | emit_2ub(p, arg0ub0, arg0ub1+arg.idx); |
||
| 822 | else |
||
| 823 | assert(0); |
||
| 824 | } |
||
| 825 | else if (dst.idx == 0) { |
||
| 826 | assert(arg.file == file_REG32); |
||
| 827 | emit_1ub(p, 0xd8); |
||
| 828 | emit_modrm_noreg(p, argmem_noreg, arg); |
||
| 829 | } |
||
| 830 | else |
||
| 831 | assert(0); |
||
| 832 | } |
||
| 833 | |||
| 834 | void x87_fmul( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 835 | { |
||
| 836 | x87_arith_op(p, dst, arg, |
||
| 837 | 0xd8, 0xc8, |
||
| 838 | 0xdc, 0xc8, |
||
| 839 | 4); |
||
| 840 | } |
||
| 841 | |||
| 842 | void x87_fsub( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 843 | { |
||
| 844 | x87_arith_op(p, dst, arg, |
||
| 845 | 0xd8, 0xe0, |
||
| 846 | 0xdc, 0xe8, |
||
| 847 | 4); |
||
| 848 | } |
||
| 849 | |||
| 850 | void x87_fsubr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 851 | { |
||
| 852 | x87_arith_op(p, dst, arg, |
||
| 853 | 0xd8, 0xe8, |
||
| 854 | 0xdc, 0xe0, |
||
| 855 | 5); |
||
| 856 | } |
||
| 857 | |||
| 858 | void x87_fadd( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 859 | { |
||
| 860 | x87_arith_op(p, dst, arg, |
||
| 861 | 0xd8, 0xc0, |
||
| 862 | 0xdc, 0xc0, |
||
| 863 | 0); |
||
| 864 | } |
||
| 865 | |||
| 866 | void x87_fdiv( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 867 | { |
||
| 868 | x87_arith_op(p, dst, arg, |
||
| 869 | 0xd8, 0xf0, |
||
| 870 | 0xdc, 0xf8, |
||
| 871 | 6); |
||
| 872 | } |
||
| 873 | |||
| 874 | void x87_fdivr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) |
||
| 875 | { |
||
| 876 | x87_arith_op(p, dst, arg, |
||
| 877 | 0xd8, 0xf8, |
||
| 878 | 0xdc, 0xf0, |
||
| 879 | 7); |
||
| 880 | } |
||
| 881 | |||
| 882 | void x87_fmulp( struct x86_function *p, struct x86_reg dst ) |
||
| 883 | { |
||
| 884 | assert(dst.file == file_x87); |
||
| 885 | assert(dst.idx >= 1); |
||
| 886 | emit_2ub(p, 0xde, 0xc8+dst.idx); |
||
| 887 | } |
||
| 888 | |||
| 889 | void x87_fsubp( struct x86_function *p, struct x86_reg dst ) |
||
| 890 | { |
||
| 891 | assert(dst.file == file_x87); |
||
| 892 | assert(dst.idx >= 1); |
||
| 893 | emit_2ub(p, 0xde, 0xe8+dst.idx); |
||
| 894 | } |
||
| 895 | |||
| 896 | void x87_fsubrp( struct x86_function *p, struct x86_reg dst ) |
||
| 897 | { |
||
| 898 | assert(dst.file == file_x87); |
||
| 899 | assert(dst.idx >= 1); |
||
| 900 | emit_2ub(p, 0xde, 0xe0+dst.idx); |
||
| 901 | } |
||
| 902 | |||
| 903 | void x87_faddp( struct x86_function *p, struct x86_reg dst ) |
||
| 904 | { |
||
| 905 | assert(dst.file == file_x87); |
||
| 906 | assert(dst.idx >= 1); |
||
| 907 | emit_2ub(p, 0xde, 0xc0+dst.idx); |
||
| 908 | } |
||
| 909 | |||
| 910 | void x87_fdivp( struct x86_function *p, struct x86_reg dst ) |
||
| 911 | { |
||
| 912 | assert(dst.file == file_x87); |
||
| 913 | assert(dst.idx >= 1); |
||
| 914 | emit_2ub(p, 0xde, 0xf8+dst.idx); |
||
| 915 | } |
||
| 916 | |||
| 917 | void x87_fdivrp( struct x86_function *p, struct x86_reg dst ) |
||
| 918 | { |
||
| 919 | assert(dst.file == file_x87); |
||
| 920 | assert(dst.idx >= 1); |
||
| 921 | emit_2ub(p, 0xde, 0xf0+dst.idx); |
||
| 922 | } |
||
| 923 | |||
| 924 | void x87_fucom( struct x86_function *p, struct x86_reg arg ) |
||
| 925 | { |
||
| 926 | assert(arg.file == file_x87); |
||
| 927 | emit_2ub(p, 0xdd, 0xe0+arg.idx); |
||
| 928 | } |
||
| 929 | |||
| 930 | void x87_fucomp( struct x86_function *p, struct x86_reg arg ) |
||
| 931 | { |
||
| 932 | assert(arg.file == file_x87); |
||
| 933 | emit_2ub(p, 0xdd, 0xe8+arg.idx); |
||
| 934 | } |
||
| 935 | |||
| 936 | void x87_fucompp( struct x86_function *p ) |
||
| 937 | { |
||
| 938 | emit_2ub(p, 0xda, 0xe9); |
||
| 939 | } |
||
| 940 | |||
| 941 | void x87_fxch( struct x86_function *p, struct x86_reg arg ) |
||
| 942 | { |
||
| 943 | assert(arg.file == file_x87); |
||
| 944 | emit_2ub(p, 0xd9, 0xc8+arg.idx); |
||
| 945 | } |
||
| 946 | |||
| 947 | void x87_fabs( struct x86_function *p ) |
||
| 948 | { |
||
| 949 | emit_2ub(p, 0xd9, 0xe1); |
||
| 950 | } |
||
| 951 | |||
| 952 | void x87_fchs( struct x86_function *p ) |
||
| 953 | { |
||
| 954 | emit_2ub(p, 0xd9, 0xe0); |
||
| 955 | } |
||
| 956 | |||
| 957 | void x87_fcos( struct x86_function *p ) |
||
| 958 | { |
||
| 959 | emit_2ub(p, 0xd9, 0xff); |
||
| 960 | } |
||
| 961 | |||
| 962 | |||
| 963 | void x87_fprndint( struct x86_function *p ) |
||
| 964 | { |
||
| 965 | emit_2ub(p, 0xd9, 0xfc); |
||
| 966 | } |
||
| 967 | |||
| 968 | void x87_fscale( struct x86_function *p ) |
||
| 969 | { |
||
| 970 | emit_2ub(p, 0xd9, 0xfd); |
||
| 971 | } |
||
| 972 | |||
| 973 | void x87_fsin( struct x86_function *p ) |
||
| 974 | { |
||
| 975 | emit_2ub(p, 0xd9, 0xfe); |
||
| 976 | } |
||
| 977 | |||
| 978 | void x87_fsincos( struct x86_function *p ) |
||
| 979 | { |
||
| 980 | emit_2ub(p, 0xd9, 0xfb); |
||
| 981 | } |
||
| 982 | |||
| 983 | void x87_fsqrt( struct x86_function *p ) |
||
| 984 | { |
||
| 985 | emit_2ub(p, 0xd9, 0xfa); |
||
| 986 | } |
||
| 987 | |||
| 988 | void x87_fxtract( struct x86_function *p ) |
||
| 989 | { |
||
| 990 | emit_2ub(p, 0xd9, 0xf4); |
||
| 991 | } |
||
| 992 | |||
| 993 | /* st0 = (2^st0)-1 |
||
| 994 | * |
||
| 995 | * Restrictions: -1.0 <= st0 <= 1.0 |
||
| 996 | */ |
||
| 997 | void x87_f2xm1( struct x86_function *p ) |
||
| 998 | { |
||
| 999 | emit_2ub(p, 0xd9, 0xf0); |
||
| 1000 | } |
||
| 1001 | |||
| 1002 | /* st1 = st1 * log2(st0); |
||
| 1003 | * pop_stack; |
||
| 1004 | */ |
||
| 1005 | void x87_fyl2x( struct x86_function *p ) |
||
| 1006 | { |
||
| 1007 | emit_2ub(p, 0xd9, 0xf1); |
||
| 1008 | } |
||
| 1009 | |||
| 1010 | /* st1 = st1 * log2(st0 + 1.0); |
||
| 1011 | * pop_stack; |
||
| 1012 | * |
||
| 1013 | * A fast operation, with restrictions: -.29 < st0 < .29 |
||
| 1014 | */ |
||
| 1015 | void x87_fyl2xp1( struct x86_function *p ) |
||
| 1016 | { |
||
| 1017 | emit_2ub(p, 0xd9, 0xf9); |
||
| 1018 | } |
||
| 1019 | |||
| 1020 | |||
| 1021 | void x87_fld( struct x86_function *p, struct x86_reg arg ) |
||
| 1022 | { |
||
| 1023 | if (arg.file == file_x87) |
||
| 1024 | emit_2ub(p, 0xd9, 0xc0 + arg.idx); |
||
| 1025 | else { |
||
| 1026 | emit_1ub(p, 0xd9); |
||
| 1027 | emit_modrm_noreg(p, 0, arg); |
||
| 1028 | } |
||
| 1029 | } |
||
| 1030 | |||
| 1031 | void x87_fst( struct x86_function *p, struct x86_reg dst ) |
||
| 1032 | { |
||
| 1033 | if (dst.file == file_x87) |
||
| 1034 | emit_2ub(p, 0xdd, 0xd0 + dst.idx); |
||
| 1035 | else { |
||
| 1036 | emit_1ub(p, 0xd9); |
||
| 1037 | emit_modrm_noreg(p, 2, dst); |
||
| 1038 | } |
||
| 1039 | } |
||
| 1040 | |||
| 1041 | void x87_fstp( struct x86_function *p, struct x86_reg dst ) |
||
| 1042 | { |
||
| 1043 | if (dst.file == file_x87) |
||
| 1044 | emit_2ub(p, 0xdd, 0xd8 + dst.idx); |
||
| 1045 | else { |
||
| 1046 | emit_1ub(p, 0xd9); |
||
| 1047 | emit_modrm_noreg(p, 3, dst); |
||
| 1048 | } |
||
| 1049 | } |
||
| 1050 | |||
| 1051 | void x87_fcom( struct x86_function *p, struct x86_reg dst ) |
||
| 1052 | { |
||
| 1053 | if (dst.file == file_x87) |
||
| 1054 | emit_2ub(p, 0xd8, 0xd0 + dst.idx); |
||
| 1055 | else { |
||
| 1056 | emit_1ub(p, 0xd8); |
||
| 1057 | emit_modrm_noreg(p, 2, dst); |
||
| 1058 | } |
||
| 1059 | } |
||
| 1060 | |||
| 1061 | void x87_fcomp( struct x86_function *p, struct x86_reg dst ) |
||
| 1062 | { |
||
| 1063 | if (dst.file == file_x87) |
||
| 1064 | emit_2ub(p, 0xd8, 0xd8 + dst.idx); |
||
| 1065 | else { |
||
| 1066 | emit_1ub(p, 0xd8); |
||
| 1067 | emit_modrm_noreg(p, 3, dst); |
||
| 1068 | } |
||
| 1069 | } |
||
| 1070 | |||
| 1071 | |||
| 1072 | void x87_fnstsw( struct x86_function *p, struct x86_reg dst ) |
||
| 1073 | { |
||
| 1074 | assert(dst.file == file_REG32); |
||
| 1075 | |||
| 1076 | if (dst.idx == reg_AX && |
||
| 1077 | dst.mod == mod_REG) |
||
| 1078 | emit_2ub(p, 0xdf, 0xe0); |
||
| 1079 | else { |
||
| 1080 | emit_1ub(p, 0xdd); |
||
| 1081 | emit_modrm_noreg(p, 7, dst); |
||
| 1082 | } |
||
| 1083 | } |
||
| 1084 | |||
| 1085 | |||
| 1086 | |||
| 1087 | |||
| 1088 | /*********************************************************************** |
||
| 1089 | * MMX instructions |
||
| 1090 | */ |
||
| 1091 | |||
| 1092 | void mmx_emms( struct x86_function *p ) |
||
| 1093 | { |
||
| 1094 | assert(p->need_emms); |
||
| 1095 | emit_2ub(p, 0x0f, 0x77); |
||
| 1096 | p->need_emms = 0; |
||
| 1097 | } |
||
| 1098 | |||
| 1099 | void mmx_packssdw( struct x86_function *p, |
||
| 1100 | struct x86_reg dst, |
||
| 1101 | struct x86_reg src ) |
||
| 1102 | { |
||
| 1103 | assert(dst.file == file_MMX && |
||
| 1104 | (src.file == file_MMX || src.mod != mod_REG)); |
||
| 1105 | |||
| 1106 | p->need_emms = 1; |
||
| 1107 | |||
| 1108 | emit_2ub(p, X86_TWOB, 0x6b); |
||
| 1109 | emit_modrm( p, dst, src ); |
||
| 1110 | } |
||
| 1111 | |||
| 1112 | void mmx_packuswb( struct x86_function *p, |
||
| 1113 | struct x86_reg dst, |
||
| 1114 | struct x86_reg src ) |
||
| 1115 | { |
||
| 1116 | assert(dst.file == file_MMX && |
||
| 1117 | (src.file == file_MMX || src.mod != mod_REG)); |
||
| 1118 | |||
| 1119 | p->need_emms = 1; |
||
| 1120 | |||
| 1121 | emit_2ub(p, X86_TWOB, 0x67); |
||
| 1122 | emit_modrm( p, dst, src ); |
||
| 1123 | } |
||
| 1124 | |||
| 1125 | void mmx_movd( struct x86_function *p, |
||
| 1126 | struct x86_reg dst, |
||
| 1127 | struct x86_reg src ) |
||
| 1128 | { |
||
| 1129 | p->need_emms = 1; |
||
| 1130 | emit_1ub(p, X86_TWOB); |
||
| 1131 | emit_op_modrm( p, 0x6e, 0x7e, dst, src ); |
||
| 1132 | } |
||
| 1133 | |||
| 1134 | void mmx_movq( struct x86_function *p, |
||
| 1135 | struct x86_reg dst, |
||
| 1136 | struct x86_reg src ) |
||
| 1137 | { |
||
| 1138 | p->need_emms = 1; |
||
| 1139 | emit_1ub(p, X86_TWOB); |
||
| 1140 | emit_op_modrm( p, 0x6f, 0x7f, dst, src ); |
||
| 1141 | } |
||
| 1142 | |||
| 1143 | |||
| 1144 | /*********************************************************************** |
||
| 1145 | * Helper functions |
||
| 1146 | */ |
||
| 1147 | |||
| 1148 | |||
| 1149 | /* Retreive a reference to one of the function arguments, taking into |
||
| 1150 | * account any push/pop activity: |
||
| 1151 | */ |
||
| 1152 | struct x86_reg x86_fn_arg( struct x86_function *p, |
||
| 1153 | unsigned arg ) |
||
| 1154 | { |
||
| 1155 | return x86_make_disp(x86_make_reg(file_REG32, reg_SP), |
||
| 1156 | p->stack_offset + arg * 4); /* ??? */ |
||
| 1157 | } |
||
| 1158 | |||
| 1159 | |||
| 1160 | void x86_init_func( struct x86_function *p ) |
||
| 1161 | { |
||
| 1162 | p->size = 0; |
||
| 1163 | p->store = NULL; |
||
| 1164 | p->csr = p->store; |
||
| 1165 | } |
||
| 1166 | |||
| 1167 | int x86_init_func_size( struct x86_function *p, unsigned code_size ) |
||
| 1168 | { |
||
| 1169 | p->size = code_size; |
||
| 1170 | p->store = _mesa_exec_malloc(code_size); |
||
| 1171 | p->csr = p->store; |
||
| 1172 | return p->store != NULL; |
||
| 1173 | } |
||
| 1174 | |||
| 1175 | void x86_release_func( struct x86_function *p ) |
||
| 1176 | { |
||
| 1177 | _mesa_exec_free(p->store); |
||
| 1178 | p->store = NULL; |
||
| 1179 | p->csr = NULL; |
||
| 1180 | p->size = 0; |
||
| 1181 | } |
||
| 1182 | |||
| 1183 | |||
| 1184 | void (*x86_get_func( struct x86_function *p ))(void) |
||
| 1185 | { |
||
| 1186 | if (DISASSEM && p->store) |
||
| 1187 | printf("disassemble %p %p\n", p->store, p->csr); |
||
| 1188 | return (void (*)(void)) (unsigned long) p->store; |
||
| 1189 | } |
||
| 1190 | |||
| 1191 | #else |
||
| 1192 | |||
| 1193 | void x86sse_dummy( void ) |
||
| 1194 | { |
||
| 1195 | } |
||
| 1196 | |||
| 1197 | #endif |
||
| 1198 | |||
| 1199 | #else /* USE_X86_ASM */ |
||
| 1200 | |||
| 1201 | int x86sse_c_dummy_var; /* silence warning */ |
||
| 1202 | |||
| 1203 | #endif /* USE_X86_ASM */ |