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Reduced LD[I/D}{R} repetition.

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This commit is contained in:
Thomas Harte 2017-05-29 08:24:10 -04:00
parent 47845f8c19
commit 1f62cbe21a
1 changed files with 14 additions and 18 deletions
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32
Processors/Z80/Z80.hpp
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@ -1076,21 +1076,22 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
#pragma mark - Repetition
#define LDxR_STEP(incr) \
bc_.full--; \
de_.full += (operation->type == incr) ? 1 : -1; \
hl_.full += (operation->type == incr) ? 1 : -1; \
bit3_result_ = bit5_result_ = a_ + temp8_; \
subtract_flag_ = 0; \
half_carry_flag_ = 0; \
parity_overflow_flag_ = bc_.full ? Flag::Parity : 0;
case MicroOp::LDDR:
case MicroOp::LDIR: {
bc_.full--;
de_.full += (operation->type == MicroOp::LDIR) ? 1 : -1;
hl_.full += (operation->type == MicroOp::LDIR) ? 1 : -1;
LDxR_STEP(MicroOp::LDIR);
bit3_result_ = bit5_result_ = a_ + temp8_;
subtract_flag_ = 0;
half_carry_flag_ = 0;
if(bc_.full) {
parity_overflow_flag_ = Flag::Parity;
if(parity_overflow_flag_) {
pc_.full -= 2;
} else {
parity_overflow_flag_ = 0;
move_to_next_program();
checkSchedule();
}
@ -1098,16 +1099,11 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
case MicroOp::LDD:
case MicroOp::LDI: {
bc_.full--;
de_.full += (operation->type == MicroOp::LDI) ? 1 : -1;
hl_.full += (operation->type == MicroOp::LDI) ? 1 : -1;
bit3_result_ = bit5_result_ = a_ + temp8_;
subtract_flag_ = 0;
half_carry_flag_ = 0;
parity_overflow_flag_ = bc_.full ? Flag::Parity : 0;
LDxR_STEP(MicroOp::LDI);
} break;
#undef LDxR_STEP
case MicroOp::CPDR:
case MicroOp::CPIR: {
bc_.full--;