root / ops_template.h @ 1a9353d2
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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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#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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/* 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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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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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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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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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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#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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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 >> (DATA_BITS - 1)) & CC_C;
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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 is defined if shift count == 1 */
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of = lshift(CC_SRC ^ 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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#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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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 is defined if shift count == 1 */
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of = lshift(CC_SRC ^ 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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/* various optimized jumps cases */
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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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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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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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/* oldies */
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|
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#if DATA_BITS >= 16 |
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|
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void OPPROTO glue(op_loopnz, SUFFIX)(void) |
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{ |
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unsigned int tmp; |
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int eflags;
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eflags = cc_table[CC_OP].compute_all(); |
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tmp = (ECX - 1) & DATA_MASK;
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ECX = (ECX & ~DATA_MASK) | tmp; |
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if (tmp != 0 && !(eflags & CC_Z)) |
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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_loopz, SUFFIX)(void) |
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{ |
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unsigned int tmp; |
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int eflags;
|
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eflags = cc_table[CC_OP].compute_all(); |
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tmp = (ECX - 1) & DATA_MASK;
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ECX = (ECX & ~DATA_MASK) | tmp; |
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if (tmp != 0 && (eflags & CC_Z)) |
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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_loop, SUFFIX)(void) |
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{ |
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unsigned int tmp; |
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tmp = (ECX - 1) & DATA_MASK;
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ECX = (ECX & ~DATA_MASK) | tmp; |
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if (tmp != 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_jecxz, SUFFIX)(void) |
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{ |
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if ((DATA_TYPE)ECX == 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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#endif
|
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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; |
341 |
src2 = CC_SRC - CC_DST; |
342 |
|
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T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2); |
344 |
} |
345 |
|
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void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void) |
347 |
{ |
348 |
T0 = ((DATA_TYPE)CC_DST == 0);
|
349 |
} |
350 |
|
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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; |
356 |
|
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T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2); |
358 |
} |
359 |
|
360 |
void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void) |
361 |
{ |
362 |
T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1; |
363 |
} |
364 |
|
365 |
void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void) |
366 |
{ |
367 |
int src1, src2;
|
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src1 = CC_SRC; |
369 |
src2 = CC_SRC - CC_DST; |
370 |
|
371 |
T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2); |
372 |
} |
373 |
|
374 |
void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void) |
375 |
{ |
376 |
int src1, src2;
|
377 |
src1 = CC_SRC; |
378 |
src2 = CC_SRC - CC_DST; |
379 |
|
380 |
T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2); |
381 |
} |
382 |
|
383 |
/* shifts */
|
384 |
|
385 |
void OPPROTO glue(glue(op_rol, SUFFIX), _T0_T1_cc)(void) |
386 |
{ |
387 |
int count, src;
|
388 |
count = T1 & SHIFT_MASK; |
389 |
if (count) {
|
390 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
391 |
src = T0; |
392 |
T0 &= DATA_MASK; |
393 |
T0 = (T0 << count) | (T0 >> (DATA_BITS - count)); |
394 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
395 |
(T0 & CC_C); |
396 |
CC_OP = CC_OP_EFLAGS; |
397 |
} |
398 |
FORCE_RET(); |
399 |
} |
400 |
|
401 |
void OPPROTO glue(glue(op_ror, SUFFIX), _T0_T1_cc)(void) |
402 |
{ |
403 |
int count, src;
|
404 |
count = T1 & SHIFT_MASK; |
405 |
if (count) {
|
406 |
CC_SRC = cc_table[CC_OP].compute_all() & ~(CC_O | CC_C); |
407 |
src = T0; |
408 |
T0 &= DATA_MASK; |
409 |
T0 = (T0 >> count) | (T0 << (DATA_BITS - count)); |
410 |
CC_SRC |= (lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
411 |
((T0 >> (DATA_BITS - 1)) & CC_C);
|
412 |
CC_OP = CC_OP_EFLAGS; |
413 |
} |
414 |
FORCE_RET(); |
415 |
} |
416 |
|
417 |
void OPPROTO glue(glue(op_rcl, SUFFIX), _T0_T1_cc)(void) |
418 |
{ |
419 |
int count, res, eflags;
|
420 |
unsigned int src; |
421 |
|
422 |
count = T1 & 0x1f;
|
423 |
#if DATA_BITS == 16 |
424 |
count = rclw_table[count]; |
425 |
#elif DATA_BITS == 8 |
426 |
count = rclb_table[count]; |
427 |
#endif
|
428 |
if (count) {
|
429 |
eflags = cc_table[CC_OP].compute_all(); |
430 |
T0 &= DATA_MASK; |
431 |
src = T0; |
432 |
res = (T0 << count) | ((eflags & CC_C) << (count - 1));
|
433 |
if (count > 1) |
434 |
res |= T0 >> (DATA_BITS + 1 - count);
|
435 |
T0 = res; |
436 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
437 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
438 |
((src >> (DATA_BITS - count)) & CC_C); |
439 |
CC_OP = CC_OP_EFLAGS; |
440 |
} |
441 |
FORCE_RET(); |
442 |
} |
443 |
|
444 |
void OPPROTO glue(glue(op_rcr, SUFFIX), _T0_T1_cc)(void) |
445 |
{ |
446 |
int count, res, eflags;
|
447 |
unsigned int src; |
448 |
|
449 |
count = T1 & 0x1f;
|
450 |
#if DATA_BITS == 16 |
451 |
count = rclw_table[count]; |
452 |
#elif DATA_BITS == 8 |
453 |
count = rclb_table[count]; |
454 |
#endif
|
455 |
if (count) {
|
456 |
eflags = cc_table[CC_OP].compute_all(); |
457 |
T0 &= DATA_MASK; |
458 |
src = T0; |
459 |
res = (T0 >> count) | ((eflags & CC_C) << (DATA_BITS - count)); |
460 |
if (count > 1) |
461 |
res |= T0 << (DATA_BITS + 1 - count);
|
462 |
T0 = res; |
463 |
CC_SRC = (eflags & ~(CC_C | CC_O)) | |
464 |
(lshift(src ^ T0, 11 - (DATA_BITS - 1)) & CC_O) | |
465 |
((src >> (count - 1)) & CC_C);
|
466 |
CC_OP = CC_OP_EFLAGS; |
467 |
} |
468 |
FORCE_RET(); |
469 |
} |
470 |
|
471 |
void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1_cc)(void) |
472 |
{ |
473 |
int count;
|
474 |
count = T1 & 0x1f;
|
475 |
if (count) {
|
476 |
CC_SRC = (DATA_TYPE)T0 << (count - 1);
|
477 |
T0 = T0 << count; |
478 |
CC_DST = T0; |
479 |
CC_OP = CC_OP_SHLB + SHIFT; |
480 |
} |
481 |
FORCE_RET(); |
482 |
} |
483 |
|
484 |
void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1_cc)(void) |
485 |
{ |
486 |
int count;
|
487 |
count = T1 & 0x1f;
|
488 |
if (count) {
|
489 |
T0 &= DATA_MASK; |
490 |
CC_SRC = T0 >> (count - 1);
|
491 |
T0 = T0 >> count; |
492 |
CC_DST = T0; |
493 |
CC_OP = CC_OP_SARB + SHIFT; |
494 |
} |
495 |
FORCE_RET(); |
496 |
} |
497 |
|
498 |
void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1_cc)(void) |
499 |
{ |
500 |
int count, src;
|
501 |
count = T1 & 0x1f;
|
502 |
if (count) {
|
503 |
src = (DATA_STYPE)T0; |
504 |
CC_SRC = src >> (count - 1);
|
505 |
T0 = src >> count; |
506 |
CC_DST = T0; |
507 |
CC_OP = CC_OP_SARB + SHIFT; |
508 |
} |
509 |
FORCE_RET(); |
510 |
} |
511 |
|
512 |
#if DATA_BITS == 16 |
513 |
/* XXX: overflow flag might be incorrect in some cases in shldw */
|
514 |
void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_im_cc)(void) |
515 |
{ |
516 |
int count;
|
517 |
unsigned int res; |
518 |
count = PARAM1; |
519 |
T1 &= 0xffff;
|
520 |
res = T1 | (T0 << 16);
|
521 |
CC_SRC = res >> (32 - count);
|
522 |
res <<= count; |
523 |
if (count > 16) |
524 |
res |= T1 << (count - 16);
|
525 |
T0 = res >> 16;
|
526 |
CC_DST = T0; |
527 |
} |
528 |
|
529 |
void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_ECX_cc)(void) |
530 |
{ |
531 |
int count;
|
532 |
unsigned int res; |
533 |
count = ECX & 0x1f;
|
534 |
if (count) {
|
535 |
T1 &= 0xffff;
|
536 |
res = T1 | (T0 << 16);
|
537 |
CC_SRC = res >> (32 - count);
|
538 |
res <<= count; |
539 |
if (count > 16) |
540 |
res |= T1 << (count - 16);
|
541 |
T0 = res >> 16;
|
542 |
CC_DST = T0; |
543 |
CC_OP = CC_OP_SARB + SHIFT; |
544 |
} |
545 |
} |
546 |
|
547 |
void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_im_cc)(void) |
548 |
{ |
549 |
int count;
|
550 |
unsigned int res; |
551 |
|
552 |
count = PARAM1; |
553 |
res = (T0 & 0xffff) | (T1 << 16); |
554 |
CC_SRC = res >> (count - 1);
|
555 |
res >>= count; |
556 |
if (count > 16) |
557 |
res |= T1 << (32 - count);
|
558 |
T0 = res; |
559 |
CC_DST = T0; |
560 |
} |
561 |
|
562 |
|
563 |
void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_ECX_cc)(void) |
564 |
{ |
565 |
int count;
|
566 |
unsigned int res; |
567 |
|
568 |
count = ECX & 0x1f;
|
569 |
if (count) {
|
570 |
res = (T0 & 0xffff) | (T1 << 16); |
571 |
CC_SRC = res >> (count - 1);
|
572 |
res >>= count; |
573 |
if (count > 16) |
574 |
res |= T1 << (32 - count);
|
575 |
T0 = res; |
576 |
CC_DST = T0; |
577 |
CC_OP = CC_OP_SARB + SHIFT; |
578 |
} |
579 |
} |
580 |
#endif
|
581 |
|
582 |
#if DATA_BITS == 32 |
583 |
void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_im_cc)(void) |
584 |
{ |
585 |
int count;
|
586 |
count = PARAM1; |
587 |
T0 &= DATA_MASK; |
588 |
T1 &= DATA_MASK; |
589 |
CC_SRC = T0 << (count - 1);
|
590 |
T0 = (T0 << count) | (T1 >> (DATA_BITS - count)); |
591 |
CC_DST = T0; |
592 |
} |
593 |
|
594 |
void OPPROTO glue(glue(op_shld, SUFFIX), _T0_T1_ECX_cc)(void) |
595 |
{ |
596 |
int count;
|
597 |
count = ECX & 0x1f;
|
598 |
if (count) {
|
599 |
T0 &= DATA_MASK; |
600 |
T1 &= DATA_MASK; |
601 |
CC_SRC = T0 << (count - 1);
|
602 |
T0 = (T0 << count) | (T1 >> (DATA_BITS - count)); |
603 |
CC_DST = T0; |
604 |
CC_OP = CC_OP_SHLB + SHIFT; |
605 |
} |
606 |
} |
607 |
|
608 |
void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_im_cc)(void) |
609 |
{ |
610 |
int count;
|
611 |
count = PARAM1; |
612 |
T0 &= DATA_MASK; |
613 |
T1 &= DATA_MASK; |
614 |
CC_SRC = T0 >> (count - 1);
|
615 |
T0 = (T0 >> count) | (T1 << (DATA_BITS - count)); |
616 |
CC_DST = T0; |
617 |
} |
618 |
|
619 |
|
620 |
void OPPROTO glue(glue(op_shrd, SUFFIX), _T0_T1_ECX_cc)(void) |
621 |
{ |
622 |
int count;
|
623 |
count = ECX & 0x1f;
|
624 |
if (count) {
|
625 |
T0 &= DATA_MASK; |
626 |
T1 &= DATA_MASK; |
627 |
CC_SRC = T0 >> (count - 1);
|
628 |
T0 = (T0 >> count) | (T1 << (DATA_BITS - count)); |
629 |
CC_DST = T0; |
630 |
CC_OP = CC_OP_SARB + SHIFT; |
631 |
} |
632 |
} |
633 |
#endif
|
634 |
|
635 |
/* carry add/sub (we only need to set CC_OP differently) */
|
636 |
|
637 |
void OPPROTO glue(glue(op_adc, SUFFIX), _T0_T1_cc)(void) |
638 |
{ |
639 |
int cf;
|
640 |
cf = cc_table[CC_OP].compute_c(); |
641 |
CC_SRC = T0; |
642 |
T0 = T0 + T1 + cf; |
643 |
CC_DST = T0; |
644 |
CC_OP = CC_OP_ADDB + SHIFT + cf * 3;
|
645 |
} |
646 |
|
647 |
void OPPROTO glue(glue(op_sbb, SUFFIX), _T0_T1_cc)(void) |
648 |
{ |
649 |
int cf;
|
650 |
cf = cc_table[CC_OP].compute_c(); |
651 |
CC_SRC = T0; |
652 |
T0 = T0 - T1 - cf; |
653 |
CC_DST = T0; |
654 |
CC_OP = CC_OP_SUBB + SHIFT + cf * 3;
|
655 |
} |
656 |
|
657 |
void OPPROTO glue(glue(op_cmpxchg, SUFFIX), _T0_T1_EAX_cc)(void) |
658 |
{ |
659 |
CC_SRC = EAX; |
660 |
CC_DST = EAX - T0; |
661 |
if ((DATA_TYPE)CC_DST == 0) { |
662 |
T0 = T1; |
663 |
} else {
|
664 |
EAX = (EAX & ~DATA_MASK) | (T0 & DATA_MASK); |
665 |
} |
666 |
FORCE_RET(); |
667 |
} |
668 |
|
669 |
/* bit operations */
|
670 |
#if DATA_BITS >= 16 |
671 |
|
672 |
void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void) |
673 |
{ |
674 |
int count;
|
675 |
count = T1 & SHIFT_MASK; |
676 |
CC_SRC = T0 >> count; |
677 |
} |
678 |
|
679 |
void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void) |
680 |
{ |
681 |
int count;
|
682 |
count = T1 & SHIFT_MASK; |
683 |
CC_SRC = T0 >> count; |
684 |
T0 |= (1 << count);
|
685 |
} |
686 |
|
687 |
void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void) |
688 |
{ |
689 |
int count;
|
690 |
count = T1 & SHIFT_MASK; |
691 |
CC_SRC = T0 >> count; |
692 |
T0 &= ~(1 << count);
|
693 |
} |
694 |
|
695 |
void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void) |
696 |
{ |
697 |
int count;
|
698 |
count = T1 & SHIFT_MASK; |
699 |
CC_SRC = T0 >> count; |
700 |
T0 ^= (1 << count);
|
701 |
} |
702 |
|
703 |
void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void) |
704 |
{ |
705 |
int res, count;
|
706 |
res = T0 & DATA_MASK; |
707 |
if (res != 0) { |
708 |
count = 0;
|
709 |
while ((res & 1) == 0) { |
710 |
count++; |
711 |
res >>= 1;
|
712 |
} |
713 |
T0 = count; |
714 |
CC_DST = 1; /* ZF = 1 */ |
715 |
} else {
|
716 |
CC_DST = 0; /* ZF = 1 */ |
717 |
} |
718 |
FORCE_RET(); |
719 |
} |
720 |
|
721 |
void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void) |
722 |
{ |
723 |
int res, count;
|
724 |
res = T0 & DATA_MASK; |
725 |
if (res != 0) { |
726 |
count = DATA_BITS - 1;
|
727 |
while ((res & SIGN_MASK) == 0) { |
728 |
count--; |
729 |
res <<= 1;
|
730 |
} |
731 |
T0 = count; |
732 |
CC_DST = 1; /* ZF = 1 */ |
733 |
} else {
|
734 |
CC_DST = 0; /* ZF = 1 */ |
735 |
} |
736 |
FORCE_RET(); |
737 |
} |
738 |
|
739 |
#endif
|
740 |
|
741 |
/* string operations */
|
742 |
/* XXX: maybe use lower level instructions to ease exception handling */
|
743 |
|
744 |
void OPPROTO glue(op_movs, SUFFIX)(void) |
745 |
{ |
746 |
int v;
|
747 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
748 |
glue(st, SUFFIX)((void *)EDI, v);
|
749 |
ESI += (DF << SHIFT); |
750 |
EDI += (DF << SHIFT); |
751 |
} |
752 |
|
753 |
void OPPROTO glue(op_rep_movs, SUFFIX)(void) |
754 |
{ |
755 |
int v, inc;
|
756 |
inc = (DF << SHIFT); |
757 |
while (ECX != 0) { |
758 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
759 |
glue(st, SUFFIX)((void *)EDI, v);
|
760 |
ESI += inc; |
761 |
EDI += inc; |
762 |
ECX--; |
763 |
} |
764 |
} |
765 |
|
766 |
void OPPROTO glue(op_stos, SUFFIX)(void) |
767 |
{ |
768 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
769 |
EDI += (DF << SHIFT); |
770 |
} |
771 |
|
772 |
void OPPROTO glue(op_rep_stos, SUFFIX)(void) |
773 |
{ |
774 |
int inc;
|
775 |
inc = (DF << SHIFT); |
776 |
while (ECX != 0) { |
777 |
glue(st, SUFFIX)((void *)EDI, EAX);
|
778 |
EDI += inc; |
779 |
ECX--; |
780 |
} |
781 |
} |
782 |
|
783 |
void OPPROTO glue(op_lods, SUFFIX)(void) |
784 |
{ |
785 |
int v;
|
786 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
787 |
#if SHIFT == 0 |
788 |
EAX = (EAX & ~0xff) | v;
|
789 |
#elif SHIFT == 1 |
790 |
EAX = (EAX & ~0xffff) | v;
|
791 |
#else
|
792 |
EAX = v; |
793 |
#endif
|
794 |
ESI += (DF << SHIFT); |
795 |
} |
796 |
|
797 |
/* don't know if it is used */
|
798 |
void OPPROTO glue(op_rep_lods, SUFFIX)(void) |
799 |
{ |
800 |
int v, inc;
|
801 |
inc = (DF << SHIFT); |
802 |
while (ECX != 0) { |
803 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
804 |
#if SHIFT == 0 |
805 |
EAX = (EAX & ~0xff) | v;
|
806 |
#elif SHIFT == 1 |
807 |
EAX = (EAX & ~0xffff) | v;
|
808 |
#else
|
809 |
EAX = v; |
810 |
#endif
|
811 |
ESI += inc; |
812 |
ECX--; |
813 |
} |
814 |
} |
815 |
|
816 |
void OPPROTO glue(op_scas, SUFFIX)(void) |
817 |
{ |
818 |
int v;
|
819 |
|
820 |
v = glue(ldu, SUFFIX)((void *)EDI);
|
821 |
EDI += (DF << SHIFT); |
822 |
CC_SRC = EAX; |
823 |
CC_DST = EAX - v; |
824 |
} |
825 |
|
826 |
void OPPROTO glue(op_repz_scas, SUFFIX)(void) |
827 |
{ |
828 |
int v1, v2, inc;
|
829 |
|
830 |
if (ECX != 0) { |
831 |
/* NOTE: the flags are not modified if ECX == 0 */
|
832 |
v1 = EAX & DATA_MASK; |
833 |
inc = (DF << SHIFT); |
834 |
do {
|
835 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
836 |
EDI += inc; |
837 |
ECX--; |
838 |
if (v1 != v2)
|
839 |
break;
|
840 |
} while (ECX != 0); |
841 |
CC_SRC = v1; |
842 |
CC_DST = v1 - v2; |
843 |
CC_OP = CC_OP_SUBB + SHIFT; |
844 |
} |
845 |
} |
846 |
|
847 |
void OPPROTO glue(op_repnz_scas, SUFFIX)(void) |
848 |
{ |
849 |
int v1, v2, inc;
|
850 |
|
851 |
if (ECX != 0) { |
852 |
/* NOTE: the flags are not modified if ECX == 0 */
|
853 |
v1 = EAX & DATA_MASK; |
854 |
inc = (DF << SHIFT); |
855 |
do {
|
856 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
857 |
EDI += inc; |
858 |
ECX--; |
859 |
if (v1 == v2)
|
860 |
break;
|
861 |
} while (ECX != 0); |
862 |
CC_SRC = v1; |
863 |
CC_DST = v1 - v2; |
864 |
CC_OP = CC_OP_SUBB + SHIFT; |
865 |
} |
866 |
} |
867 |
|
868 |
void OPPROTO glue(op_cmps, SUFFIX)(void) |
869 |
{ |
870 |
int v1, v2;
|
871 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
872 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
873 |
ESI += (DF << SHIFT); |
874 |
EDI += (DF << SHIFT); |
875 |
CC_SRC = v1; |
876 |
CC_DST = v1 - v2; |
877 |
} |
878 |
|
879 |
void OPPROTO glue(op_repz_cmps, SUFFIX)(void) |
880 |
{ |
881 |
int v1, v2, inc;
|
882 |
if (ECX != 0) { |
883 |
inc = (DF << SHIFT); |
884 |
do {
|
885 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
886 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
887 |
ESI += inc; |
888 |
EDI += inc; |
889 |
ECX--; |
890 |
if (v1 != v2)
|
891 |
break;
|
892 |
} while (ECX != 0); |
893 |
CC_SRC = v1; |
894 |
CC_DST = v1 - v2; |
895 |
CC_OP = CC_OP_SUBB + SHIFT; |
896 |
} |
897 |
} |
898 |
|
899 |
void OPPROTO glue(op_repnz_cmps, SUFFIX)(void) |
900 |
{ |
901 |
int v1, v2, inc;
|
902 |
if (ECX != 0) { |
903 |
inc = (DF << SHIFT); |
904 |
do {
|
905 |
v1 = glue(ldu, SUFFIX)((void *)ESI);
|
906 |
v2 = glue(ldu, SUFFIX)((void *)EDI);
|
907 |
ESI += inc; |
908 |
EDI += inc; |
909 |
ECX--; |
910 |
if (v1 == v2)
|
911 |
break;
|
912 |
} while (ECX != 0); |
913 |
CC_SRC = v1; |
914 |
CC_DST = v1 - v2; |
915 |
CC_OP = CC_OP_SUBB + SHIFT; |
916 |
} |
917 |
} |
918 |
|
919 |
/* port I/O */
|
920 |
|
921 |
void OPPROTO glue(op_outs, SUFFIX)(void) |
922 |
{ |
923 |
int v, dx;
|
924 |
dx = EDX & 0xffff;
|
925 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
926 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
927 |
ESI += (DF << SHIFT); |
928 |
} |
929 |
|
930 |
void OPPROTO glue(op_rep_outs, SUFFIX)(void) |
931 |
{ |
932 |
int v, dx, inc;
|
933 |
inc = (DF << SHIFT); |
934 |
dx = EDX & 0xffff;
|
935 |
while (ECX != 0) { |
936 |
v = glue(ldu, SUFFIX)((void *)ESI);
|
937 |
glue(cpu_x86_out, SUFFIX)(dx, v); |
938 |
ESI += inc; |
939 |
ECX--; |
940 |
} |
941 |
} |
942 |
|
943 |
void OPPROTO glue(op_ins, SUFFIX)(void) |
944 |
{ |
945 |
int v, dx;
|
946 |
dx = EDX & 0xffff;
|
947 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
948 |
glue(st, SUFFIX)((void *)EDI, v);
|
949 |
EDI += (DF << SHIFT); |
950 |
} |
951 |
|
952 |
void OPPROTO glue(op_rep_ins, SUFFIX)(void) |
953 |
{ |
954 |
int v, dx, inc;
|
955 |
inc = (DF << SHIFT); |
956 |
dx = EDX & 0xffff;
|
957 |
while (ECX != 0) { |
958 |
v = glue(cpu_x86_in, SUFFIX)(dx); |
959 |
glue(st, SUFFIX)((void *)EDI, v);
|
960 |
EDI += (DF << SHIFT); |
961 |
ECX--; |
962 |
} |
963 |
} |
964 |
|
965 |
void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void) |
966 |
{ |
967 |
glue(cpu_x86_out, SUFFIX)(T0 & 0xffff, T1 & DATA_MASK);
|
968 |
} |
969 |
|
970 |
void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void) |
971 |
{ |
972 |
T1 = glue(cpu_x86_in, SUFFIX)(T0 & 0xffff);
|
973 |
} |
974 |
|
975 |
#undef DATA_BITS
|
976 |
#undef SHIFT_MASK
|
977 |
#undef SIGN_MASK
|
978 |
#undef DATA_TYPE
|
979 |
#undef DATA_STYPE
|
980 |
#undef DATA_MASK
|
981 |
#undef SUFFIX
|