root / ops_template.h @ 4b74fe1f
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#define DATA_BITS (1 << (3 + SHIFT)) |
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#define SHIFT_MASK (DATA_BITS - 1) |
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#define SIGN_MASK (1 << (DATA_BITS - 1)) |
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|
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#if DATA_BITS == 8 |
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#define SUFFIX b
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#define DATA_TYPE uint8_t
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#define DATA_STYPE int8_t
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#define DATA_MASK 0xff |
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#elif DATA_BITS == 16 |
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#define SUFFIX w
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#define DATA_TYPE uint16_t
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#define DATA_STYPE int16_t
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#define DATA_MASK 0xffff |
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#elif DATA_BITS == 32 |
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#define SUFFIX l
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#define DATA_TYPE uint32_t
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#define DATA_STYPE int32_t
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#define DATA_MASK 0xffffffff |
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#else
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#error unhandled operand size
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#endif
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|
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/* dynamic flags computation */
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static int glue(compute_all_add, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_SRC; |
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src2 = CC_DST - CC_SRC; |
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cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
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return cf | pf | af | zf | sf | of;
|
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} |
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|
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static int glue(compute_c_add, SUFFIX)(void) |
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{
|
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int src1, cf;
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src1 = CC_SRC; |
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cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1; |
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return cf;
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} |
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|
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static int glue(compute_all_adc, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_SRC; |
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src2 = CC_DST - CC_SRC - 1;
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cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O; |
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return cf | pf | af | zf | sf | of;
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} |
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static int glue(compute_c_adc, SUFFIX)(void) |
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{
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int src1, cf;
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src1 = CC_SRC; |
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cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1; |
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return cf;
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} |
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static int glue(compute_all_sub, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
|
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
|
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return cf | pf | af | zf | sf | of;
|
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} |
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|
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static int glue(compute_c_sub, SUFFIX)(void) |
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{
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int src1, src2, cf;
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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cf = (DATA_TYPE)src1 < (DATA_TYPE)src2; |
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return cf;
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} |
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|
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static int glue(compute_all_sbb, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST - 1;
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cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
|
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return cf | pf | af | zf | sf | of;
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} |
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static int glue(compute_c_sbb, SUFFIX)(void) |
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{
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int src1, src2, cf;
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST - 1;
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cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2; |
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return cf;
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} |
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static int glue(compute_all_logic, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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cf = 0;
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pf = parity_table[(uint8_t)CC_DST]; |
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af = 0;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = 0;
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return cf | pf | af | zf | sf | of;
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} |
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static int glue(compute_c_logic, SUFFIX)(void) |
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{
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return 0; |
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} |
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static int glue(compute_all_inc, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_DST - 1;
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src2 = 1;
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cf = CC_SRC; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;
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return cf | pf | af | zf | sf | of;
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} |
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|
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#if DATA_BITS == 32 |
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static int glue(compute_c_inc, SUFFIX)(void) |
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{
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return CC_SRC;
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} |
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#endif
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static int glue(compute_all_dec, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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int src1, src2;
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src1 = CC_DST + 1;
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src2 = 1;
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cf = CC_SRC; |
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pf = parity_table[(uint8_t)CC_DST]; |
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af = (CC_DST ^ src1 ^ src2) & 0x10;
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = ((CC_DST & DATA_MASK) == ((uint32_t)SIGN_MASK - 1)) << 11; |
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return cf | pf | af | zf | sf | of;
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} |
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|
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static int glue(compute_all_shl, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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cf = CC_SRC & 1;
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pf = parity_table[(uint8_t)CC_DST]; |
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af = 0; /* undefined */ |
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = lshift(CC_SRC, 12 - DATA_BITS) & CC_O; /* only meaniful for shr with count == 1 */ |
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return cf | pf | af | zf | sf | of;
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} |
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|
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#if DATA_BITS == 32 |
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static int glue(compute_c_shl, SUFFIX)(void) |
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{
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return CC_SRC & 1; |
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} |
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#endif
|
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|
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static int glue(compute_all_sar, SUFFIX)(void) |
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{
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int cf, pf, af, zf, sf, of;
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cf = CC_SRC & 1;
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pf = parity_table[(uint8_t)CC_DST]; |
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af = 0; /* undefined */ |
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zf = ((DATA_TYPE)CC_DST == 0) << 6; |
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sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80; |
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of = 0; /* only meaniful for shr with count == 1 */ |
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return cf | pf | af | zf | sf | of;
|
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} |
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|
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/* various optimized jumps cases */
|
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|
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void OPPROTO glue(op_jb_sub, SUFFIX)(void) |
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{
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int src1, src2;
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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|
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if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
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PC = PARAM1; |
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else
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO glue(op_jz_sub, SUFFIX)(void) |
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{
|
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if ((DATA_TYPE)CC_DST == 0) |
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PC = PARAM1; |
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else
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO glue(op_jbe_sub, SUFFIX)(void) |
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{
|
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int src1, src2;
|
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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|
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if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
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PC = PARAM1; |
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else
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO glue(op_js_sub, SUFFIX)(void) |
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{
|
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if (CC_DST & SIGN_MASK)
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PC = PARAM1; |
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else
|
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO glue(op_jl_sub, SUFFIX)(void) |
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{
|
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int src1, src2;
|
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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|
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if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
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PC = PARAM1; |
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else
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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void OPPROTO glue(op_jle_sub, SUFFIX)(void) |
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{
|
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int src1, src2;
|
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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|
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if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
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PC = PARAM1; |
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else
|
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PC = PARAM2; |
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FORCE_RET(); |
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} |
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|
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/* various optimized set cases */
|
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|
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void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void) |
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{
|
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int src1, src2;
|
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
| 285 |
|
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T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); |
| 287 |
} |
| 288 |
|
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void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) |
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{
|
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T0 = ((DATA_TYPE)CC_DST == 0);
|
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} |
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|
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void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void) |
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{
|
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int src1, src2;
|
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src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
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|
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T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); |
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} |
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|
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void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) |
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{
|
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T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; |
| 306 |
} |
| 307 |
|
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void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) |
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{
|
| 310 |
int src1, src2;
|
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src1 = CC_SRC; |
| 312 |
src2 = CC_SRC - CC_DST; |
| 313 |
|
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T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); |
| 315 |
} |
| 316 |
|
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void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) |
| 318 |
{
|
| 319 |
int src1, src2;
|
| 320 |
src1 = CC_SRC; |
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src2 = CC_SRC - CC_DST; |
| 322 |
|
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T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); |
| 324 |
} |
| 325 |
|
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/* shifts */
|
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|
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void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void) |
| 329 |
{
|
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int count, src;
|
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count = T1 & SHIFT_MASK; |
| 332 |
if (count) {
|
| 333 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
| 334 |
src = T0; |
| 335 |
T0 &= DATA_MASK; |
| 336 |
T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); |
| 337 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 338 |
(T0 & CC_C); |
| 339 |
CC_OP = CC_OP_EFLAGS; |
| 340 |
} |
| 341 |
FORCE_RET(); |
| 342 |
} |
| 343 |
|
| 344 |
void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void) |
| 345 |
{
|
| 346 |
int count, src;
|
| 347 |
count = T1 & SHIFT_MASK; |
| 348 |
if (count) {
|
| 349 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
| 350 |
src = T0; |
| 351 |
T0 &= DATA_MASK; |
| 352 |
T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); |
| 353 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 354 |
((T0 >> (DATA_BITS - 1)) & CC_C);
|
| 355 |
CC_OP = CC_OP_EFLAGS; |
| 356 |
} |
| 357 |
FORCE_RET(); |
| 358 |
} |
| 359 |
|
| 360 |
void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void) |
| 361 |
{
|
| 362 |
int count, res, eflags;
|
| 363 |
unsigned int src; |
| 364 |
|
| 365 |
count = T1 & 0x1f;
|
| 366 |
#if DATA_BITS == 16 |
| 367 |
count = rclw_table[count]; |
| 368 |
#elif DATA_BITS == 8 |
| 369 |
count = rclb_table[count]; |
| 370 |
#endif
|
| 371 |
if (count) {
|
| 372 |
eflags = cc_table[CC_OP].compute_all(); |
| 373 |
T0 &= DATA_MASK; |
| 374 |
src = T0; |
| 375 |
res = (T0 << count) | ((eflags & CC_C) << (count - 1));
|
| 376 |
if (count > 1) |
| 377 |
res |= T0 >> (DATA_BITS + 1 - count);
|
| 378 |
T0 = res; |
| 379 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
| 380 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 381 |
((src >> (DATA_BITS - count)) & CC_C); |
| 382 |
CC_OP = CC_OP_EFLAGS; |
| 383 |
} |
| 384 |
FORCE_RET(); |
| 385 |
} |
| 386 |
|
| 387 |
void OPPROTO glue(glue(op_rcr, SUFFIX), _T0_T1_cc)(void) |
| 388 |
{
|
| 389 |
int count, res, eflags;
|
| 390 |
unsigned int src; |
| 391 |
|
| 392 |
count = T1 & 0x1f;
|
| 393 |
#if DATA_BITS == 16 |
| 394 |
count = rclw_table[count]; |
| 395 |
#elif DATA_BITS == 8 |
| 396 |
count = rclb_table[count]; |
| 397 |
#endif
|
| 398 |
if (count) {
|
| 399 |
eflags = cc_table[CC_OP].compute_all(); |
| 400 |
T0 &= DATA_MASK; |
| 401 |
src = T0; |
| 402 |
res = (T0 >> count) | ((eflags & CC_C) << (DATA_BITS - count)); |
| 403 |
if (count > 1) |
| 404 |
res |= T0 << (DATA_BITS + 1 - count);
|
| 405 |
T0 = res; |
| 406 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
| 407 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
| 408 |
((src >> (count - 1)) & CC_C);
|
| 409 |
CC_OP = CC_OP_EFLAGS; |
| 410 |
} |
| 411 |
FORCE_RET(); |
| 412 |
} |
| 413 |
|
| 414 |
void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void) |
| 415 |
{
|
| 416 |
int count;
|
| 417 |
count = T1 & 0x1f;
|
| 418 |
if (count == 1) { |
| 419 |
CC_SRC = T0; |
| 420 |
T0 = T0 << 1;
|
| 421 |
CC_DST = T0; |
| 422 |
CC_OP = CC_OP_ADDB + SHIFT; |
| 423 |
} else if (count) { |
| 424 |
CC_SRC = (DATA_TYPE)T0 >> (DATA_BITS - count); |
| 425 |
T0 = T0 << count; |
| 426 |
CC_DST = T0; |
| 427 |
CC_OP = CC_OP_SHLB + SHIFT; |
| 428 |
} |
| 429 |
FORCE_RET(); |
| 430 |
} |
| 431 |
|
| 432 |
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void) |
| 433 |
{
|
| 434 |
int count;
|
| 435 |
count = T1 & 0x1f;
|
| 436 |
if (count) {
|
| 437 |
T0 &= DATA_MASK; |
| 438 |
CC_SRC = T0 >> (count - 1);
|
| 439 |
T0 = T0 >> count; |
| 440 |
CC_DST = T0; |
| 441 |
CC_OP = CC_OP_SHLB + SHIFT; |
| 442 |
} |
| 443 |
FORCE_RET(); |
| 444 |
} |
| 445 |
|
| 446 |
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void) |
| 447 |
{
|
| 448 |
int count, src;
|
| 449 |
count = T1 & 0x1f;
|
| 450 |
if (count) {
|
| 451 |
src = (DATA_STYPE)T0; |
| 452 |
CC_SRC = src >> (count - 1);
|
| 453 |
T0 = src >> count; |
| 454 |
CC_DST = T0; |
| 455 |
CC_OP = CC_OP_SARB + SHIFT; |
| 456 |
} |
| 457 |
FORCE_RET(); |
| 458 |
} |
| 459 |
|
| 460 |
/* carry add/sub (we only need to set CC_OP differently) */
|
| 461 |
|
| 462 |
void OPPROTO glue(glue(op_adc, SUFFIX), _T0_T1_cc)(void) |
| 463 |
{
|
| 464 |
int cf;
|
| 465 |
cf = cc_table[CC_OP].compute_c(); |
| 466 |
CC_SRC = T0; |
| 467 |
T0 = T0 + T1 + cf; |
| 468 |
CC_DST = T0; |
| 469 |
CC_OP = CC_OP_ADDB + SHIFT + cf * 3;
|
| 470 |
} |
| 471 |
|
| 472 |
void OPPROTO glue(glue(op_sbb, SUFFIX), _T0_T1_cc)(void) |
| 473 |
{
|
| 474 |
int cf;
|
| 475 |
cf = cc_table[CC_OP].compute_c(); |
| 476 |
CC_SRC = T0; |
| 477 |
T0 = T0 - T1 - cf; |
| 478 |
CC_DST = T0; |
| 479 |
CC_OP = CC_OP_SUBB + SHIFT + cf * 3;
|
| 480 |
} |
| 481 |
|
| 482 |
/* bit operations */
|
| 483 |
#if DATA_BITS >= 16 |
| 484 |
|
| 485 |
void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void) |
| 486 |
{
|
| 487 |
int count;
|
| 488 |
count = T1 & SHIFT_MASK; |
| 489 |
CC_SRC = T0 >> count; |
| 490 |
} |
| 491 |
|
| 492 |
void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void) |
| 493 |
{
|
| 494 |
int count;
|
| 495 |
count = T1 & SHIFT_MASK; |
| 496 |
CC_SRC = T0 >> count; |
| 497 |
T0 |= (1 << count);
|
| 498 |
} |
| 499 |
|
| 500 |
void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void) |
| 501 |
{
|
| 502 |
int count;
|
| 503 |
count = T1 & SHIFT_MASK; |
| 504 |
CC_SRC = T0 >> count; |
| 505 |
T0 &= ~(1 << count);
|
| 506 |
} |
| 507 |
|
| 508 |
void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void) |
| 509 |
{
|
| 510 |
int count;
|
| 511 |
count = T1 & SHIFT_MASK; |
| 512 |
CC_SRC = T0 >> count; |
| 513 |
T0 ^= (1 << count);
|
| 514 |
} |
| 515 |
|
| 516 |
#endif
|
| 517 |
|
| 518 |
/* string operations */
|
| 519 |
/* XXX: maybe use lower level instructions to ease exception handling */
|
| 520 |
|
| 521 |
void OPPROTO glue(op_movs, SUFFIX)(void) |
| 522 |
{
|
| 523 |
int v;
|
| 524 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 525 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 526 |
ESI += (DF << SHIFT); |
| 527 |
EDI += (DF << SHIFT); |
| 528 |
} |
| 529 |
|
| 530 |
void OPPROTO glue(op_rep_movs, SUFFIX)(void) |
| 531 |
{
|
| 532 |
int v, inc;
|
| 533 |
inc = (DF << SHIFT); |
| 534 |
while (ECX != 0) { |
| 535 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 536 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 537 |
ESI += inc; |
| 538 |
EDI += inc; |
| 539 |
ECX--; |
| 540 |
} |
| 541 |
} |
| 542 |
|
| 543 |
void OPPROTO glue(op_stos, SUFFIX)(void) |
| 544 |
{
|
| 545 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
| 546 |
EDI += (DF << SHIFT); |
| 547 |
} |
| 548 |
|
| 549 |
void OPPROTO glue(op_rep_stos, SUFFIX)(void) |
| 550 |
{
|
| 551 |
int inc;
|
| 552 |
inc = (DF << SHIFT); |
| 553 |
while (ECX != 0) { |
| 554 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
| 555 |
EDI += inc; |
| 556 |
ECX--; |
| 557 |
} |
| 558 |
} |
| 559 |
|
| 560 |
void OPPROTO glue(op_lods, SUFFIX)(void) |
| 561 |
{
|
| 562 |
int v;
|
| 563 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 564 |
#if SHIFT == 0 |
| 565 |
EAX = (EAX & ~0xff) | v;
|
| 566 |
#elif SHIFT == 1 |
| 567 |
EAX = (EAX & ~0xffff) | v;
|
| 568 |
#else
|
| 569 |
EAX = v; |
| 570 |
#endif
|
| 571 |
ESI += (DF << SHIFT); |
| 572 |
} |
| 573 |
|
| 574 |
/* don't know if it is used */
|
| 575 |
void OPPROTO glue(op_rep_lods, SUFFIX)(void) |
| 576 |
{
|
| 577 |
int v, inc;
|
| 578 |
inc = (DF << SHIFT); |
| 579 |
while (ECX != 0) { |
| 580 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 581 |
#if SHIFT == 0 |
| 582 |
EAX = (EAX & ~0xff) | v;
|
| 583 |
#elif SHIFT == 1 |
| 584 |
EAX = (EAX & ~0xffff) | v;
|
| 585 |
#else
|
| 586 |
EAX = v; |
| 587 |
#endif
|
| 588 |
ESI += inc; |
| 589 |
ECX--; |
| 590 |
} |
| 591 |
} |
| 592 |
|
| 593 |
void OPPROTO glue(op_scas, SUFFIX)(void) |
| 594 |
{
|
| 595 |
int v;
|
| 596 |
|
| 597 |
v = glue(ldu, SUFFIX)((void *)EDI);
|
| 598 |
EDI += (DF << SHIFT); |
| 599 |
CC_SRC = EAX; |
| 600 |
CC_DST = EAX - v; |
| 601 |
} |
| 602 |
|
| 603 |
void OPPROTO glue(op_repz_scas, SUFFIX)(void) |
| 604 |
{
|
| 605 |
int v1, v2, inc;
|
| 606 |
|
| 607 |
if (ECX != 0) { |
| 608 |
/* NOTE: the flags are not modified if ECX == 0 */
|
| 609 |
v1 = EAX & DATA_MASK; |
| 610 |
inc = (DF << SHIFT); |
| 611 |
do {
|
| 612 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 613 |
EDI += inc; |
| 614 |
ECX--; |
| 615 |
if (v1 != v2)
|
| 616 |
break;
|
| 617 |
} while (ECX != 0); |
| 618 |
CC_SRC = v1; |
| 619 |
CC_DST = v1 - v2; |
| 620 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 621 |
} |
| 622 |
} |
| 623 |
|
| 624 |
void OPPROTO glue(op_repnz_scas, SUFFIX)(void) |
| 625 |
{
|
| 626 |
int v1, v2, inc;
|
| 627 |
|
| 628 |
if (ECX != 0) { |
| 629 |
/* NOTE: the flags are not modified if ECX == 0 */
|
| 630 |
v1 = EAX & DATA_MASK; |
| 631 |
inc = (DF << SHIFT); |
| 632 |
do {
|
| 633 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 634 |
EDI += inc; |
| 635 |
ECX--; |
| 636 |
if (v1 == v2)
|
| 637 |
break;
|
| 638 |
} while (ECX != 0); |
| 639 |
CC_SRC = v1; |
| 640 |
CC_DST = v1 - v2; |
| 641 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
void OPPROTO glue(op_cmps, SUFFIX)(void) |
| 646 |
{
|
| 647 |
int v1, v2;
|
| 648 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 649 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 650 |
ESI += (DF << SHIFT); |
| 651 |
EDI += (DF << SHIFT); |
| 652 |
CC_SRC = v1; |
| 653 |
CC_DST = v1 - v2; |
| 654 |
} |
| 655 |
|
| 656 |
void OPPROTO glue(op_repz_cmps, SUFFIX)(void) |
| 657 |
{
|
| 658 |
int v1, v2, inc;
|
| 659 |
if (ECX != 0) { |
| 660 |
inc = (DF << SHIFT); |
| 661 |
do {
|
| 662 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 663 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 664 |
ESI += inc; |
| 665 |
EDI += inc; |
| 666 |
ECX--; |
| 667 |
if (v1 != v2)
|
| 668 |
break;
|
| 669 |
} while (ECX != 0); |
| 670 |
CC_SRC = v1; |
| 671 |
CC_DST = v1 - v2; |
| 672 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 673 |
} |
| 674 |
} |
| 675 |
|
| 676 |
void OPPROTO glue(op_repnz_cmps, SUFFIX)(void) |
| 677 |
{
|
| 678 |
int v1, v2, inc;
|
| 679 |
if (ECX != 0) { |
| 680 |
inc = (DF << SHIFT); |
| 681 |
do {
|
| 682 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
| 683 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
| 684 |
ESI += inc; |
| 685 |
EDI += inc; |
| 686 |
ECX--; |
| 687 |
if (v1 == v2)
|
| 688 |
break;
|
| 689 |
} while (ECX != 0); |
| 690 |
CC_SRC = v1; |
| 691 |
CC_DST = v1 - v2; |
| 692 |
CC_OP = CC_OP_SUBB + SHIFT; |
| 693 |
} |
| 694 |
} |
| 695 |
|
| 696 |
/* port I/O */
|
| 697 |
|
| 698 |
void OPPROTO glue(op_outs, SUFFIX)(void) |
| 699 |
{
|
| 700 |
int v, dx;
|
| 701 |
dx = EDX & 0xffff;
|
| 702 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 703 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
| 704 |
ESI += (DF << SHIFT); |
| 705 |
} |
| 706 |
|
| 707 |
void OPPROTO glue(op_rep_outs, SUFFIX)(void) |
| 708 |
{
|
| 709 |
int v, dx, inc;
|
| 710 |
inc = (DF << SHIFT); |
| 711 |
dx = EDX & 0xffff;
|
| 712 |
while (ECX != 0) { |
| 713 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
| 714 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
| 715 |
ESI += inc; |
| 716 |
ECX--; |
| 717 |
} |
| 718 |
} |
| 719 |
|
| 720 |
void OPPROTO glue(op_ins, SUFFIX)(void) |
| 721 |
{
|
| 722 |
int v, dx;
|
| 723 |
dx = EDX & 0xffff;
|
| 724 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
| 725 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 726 |
EDI += (DF << SHIFT); |
| 727 |
} |
| 728 |
|
| 729 |
void OPPROTO glue(op_rep_ins, SUFFIX)(void) |
| 730 |
{
|
| 731 |
int v, dx, inc;
|
| 732 |
inc = (DF << SHIFT); |
| 733 |
dx = EDX & 0xffff;
|
| 734 |
while (ECX != 0) { |
| 735 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
| 736 |
glue(st, SUFFIX)((void *)EDI, v);
|
| 737 |
EDI += (DF << SHIFT); |
| 738 |
ECX--; |
| 739 |
} |
| 740 |
} |
| 741 |
|
| 742 |
void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
| 743 |
{
|
| 744 |
glue(cpu_x86_out, SUFFIX)(T0 & 0xffff, T1 & DATA_MASK);
|
| 745 |
} |
| 746 |
|
| 747 |
void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) |
| 748 |
{
|
| 749 |
T1 = glue(cpu_x86_in, SUFFIX)(T0 & 0xffff);
|
| 750 |
} |
| 751 |
|
| 752 |
#undef DATA_BITS
|
| 753 |
#undef SHIFT_MASK
|
| 754 |
#undef SIGN_MASK
|
| 755 |
#undef DATA_TYPE
|
| 756 |
#undef DATA_STYPE
|
| 757 |
#undef DATA_MASK
|
| 758 |
#undef SUFFIX
|