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