op_string.h
2.07 KB
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void OPPROTO glue(glue(op_repz_scas, SUFFIX), STRING_SUFFIX)(void)
{
int v1, v2, inc;
if (CX != 0) {
/* NOTE: the flags are not modified if CX == 0 */
v1 = EAX & DATA_MASK;
inc = (DF << SHIFT);
do {
v2 = glue(ldu, SUFFIX)(DI_ADDR);
INC_DI();
DEC_CX();
if (v1 != v2)
break;
} while (CX != 0);
CC_SRC = v2;
CC_DST = v1 - v2;
CC_OP = CC_OP_SUBB + SHIFT;
}
FORCE_RET();
}
void OPPROTO glue(glue(op_repnz_scas, SUFFIX), STRING_SUFFIX)(void)
{
int v1, v2, inc;
if (CX != 0) {
/* NOTE: the flags are not modified if CX == 0 */
v1 = EAX & DATA_MASK;
inc = (DF << SHIFT);
do {
v2 = glue(ldu, SUFFIX)(DI_ADDR);
INC_DI();
DEC_CX();
if (v1 == v2)
break;
} while (CX != 0);
CC_SRC = v2;
CC_DST = v1 - v2;
CC_OP = CC_OP_SUBB + SHIFT;
}
FORCE_RET();
}
void OPPROTO glue(glue(op_repz_cmps, SUFFIX), STRING_SUFFIX)(void)
{
int v1, v2, inc;
if (CX != 0) {
inc = (DF << SHIFT);
do {
v1 = glue(ldu, SUFFIX)(SI_ADDR);
v2 = glue(ldu, SUFFIX)(DI_ADDR);
INC_SI();
INC_DI();
DEC_CX();
if (v1 != v2)
break;
} while (CX != 0);
CC_SRC = v2;
CC_DST = v1 - v2;
CC_OP = CC_OP_SUBB + SHIFT;
}
FORCE_RET();
}
void OPPROTO glue(glue(op_repnz_cmps, SUFFIX), STRING_SUFFIX)(void)
{
int v1, v2, inc;
if (CX != 0) {
inc = (DF << SHIFT);
do {
v1 = glue(ldu, SUFFIX)(SI_ADDR);
v2 = glue(ldu, SUFFIX)(DI_ADDR);
INC_SI();
INC_DI();
DEC_CX();
if (v1 == v2)
break;
} while (CX != 0);
CC_SRC = v2;
CC_DST = v1 - v2;
CC_OP = CC_OP_SUBB + SHIFT;
}
FORCE_RET();
}
#undef STRING_SUFFIX
#undef SI_ADDR
#undef DI_ADDR
#undef INC_SI
#undef INC_DI
#undef CX
#undef DEC_CX