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Implemented CPL, SCF and CCF.

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This commit is contained in:
Thomas Harte 2017-05-25 22:51:08 -04:00
parent 83ee92af1a
commit d50d3fc837
1 changed files with 27 additions and 3 deletions
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30
Processors/Z80/Z80.hpp
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@ -127,6 +127,9 @@ struct MicroOp {
DJNZ,
DAA,
CPL,
SCF,
CCF,
None
};
@ -379,14 +382,14 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
/* 0x2b DEC HL; 0x2c INC L; 0x2d DEC L; 0x2e LD L, n */
DEC_INC_DEC_LD(index, index.bytes.low),
/* 0x2f CPL */ XX,
/* 0x2f CPL */ Program({MicroOp::CPL}),
/* 0x30 JR NC */ JR(TestNC), /* 0x31 LD SP, nn */ Program(FETCH16(sp_, pc_)),
/* 0x32 LD (nn), A */ Program(FETCH16(temp16_, pc_), STOREL(a_, temp16_)),
/* 0x33 INC SP */ Program(WAIT(2), {MicroOp::Increment16, &sp_.full}),
/* 0x34 INC (HL) */ Program(FETCHL(temp8_, hl_), WAIT(1), {MicroOp::Increment8, &temp8_}, STOREL(temp8_, hl_)),
/* 0x35 DEC (HL) */ Program(FETCHL(temp8_, hl_), WAIT(1), {MicroOp::Decrement8, &temp8_}, STOREL(temp8_, hl_)),
/* 0x36 LD (HL), n */ Program(FETCH(temp8_, pc_), STOREL(temp8_, index)),
/* 0x37 SCF */ XX,
/* 0x37 SCF */ Program({MicroOp::SCF}),
/* 0x38 JR C */ JR(TestC),
/* 0x39 ADD HL, SP */ ADD16(index, sp_),
/* 0x3a LD A, (nn) */ Program(FETCH16(temp16_, pc_), FETCHL(a_, temp16_)),
@ -395,7 +398,7 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
/* 0x3c INC A; 0x3d DEC A; 0x3e LD A, n */
INC_DEC_LD(a_),
/* 0x3f CCF */ XX,
/* 0x3f CCF */ Program({MicroOp::CCF}),
/* 0x40 LD B, B; 0x41 LD B, C; 0x42 LD B, D; 0x43 LD B, E; 0x44 LD B, H; 0x45 LD B, L; 0x46 LD B, (HL); 0x47 LD B, A */
LD_GROUP(bc_.bytes.high),
@ -611,6 +614,27 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
set_parity(a_);
break;
case MicroOp::CPL:
a_ ^= 0xff;
subtract_flag_ = Flag::Subtract;
half_carry_flag_ = Flag::HalfCarry;
bit5_result_ = bit3_result_ = a_;
break;
case MicroOp::CCF:
half_carry_flag_ = carry_flag_ << 4;
carry_flag_ ^= Flag::Carry;
subtract_flag_ = 0;
bit5_result_ = bit3_result_ = a_;
break;
case MicroOp::SCF:
carry_flag_ = Flag::Carry;
half_carry_flag_ = 0;
subtract_flag_ = 0;
bit5_result_ = bit3_result_ = a_;
break;
#pragma mark - Relative jumps
case MicroOp::DJNZ: