6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-06-29 00:29:34 +00:00
Code Issues Projects Releases Wiki Activity

Added EI and DI.

Browse Source
This commit is contained in:
Thomas Harte 2017-05-21 12:53:17 -04:00
parent 32c032cd97
commit 790614b544
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Processors/Z80/Z80.hpp
View File

@ -111,6 +111,8 @@ struct MicroOp {
ExDEHL,
EI, DI,
LDIR,
RLA, RLCA, RRA, RRCA,
@ -143,6 +145,7 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
RegisterPair bc_, de_, hl_;
RegisterPair afDash_, bcDash_, deDash_, hlDash_;
RegisterPair ix_, iy_, pc_, sp_;
bool iff1_, iff2_;
uint8_t sign_result_, zero_result_, bit5_result_, half_carry_flag_, bit3_result_, parity_overflow_flag_, subtract_flag_, carry_flag_;
int number_of_cycles_;
@ -385,12 +388,12 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
/* 0xee XOR n */ Program(FETCH(temp8_, pc_), {MicroOp::Xor, &temp8_}),
/* 0xef RST 28h */ XX,
/* 0xf0 RET p */ RET(TestP), /* 0xf1 POP AF */ Program(POP(temp16_), {MicroOp::DisassembleAF}),
/* 0xf2 JP P */ JP(TestP), /* 0xf3 DI */ XX,
/* 0xf2 JP P */ JP(TestP), /* 0xf3 DI */ Program({MicroOp::DI}),
/* 0xf4 CALL P */ CALL(TestP), /* 0xf5 PUSH AF */ Program(WAIT(1), {MicroOp::AssembleAF}, PUSH(temp16_)),
/* 0xf6 OR n */ Program(FETCH(temp8_, pc_), {MicroOp::Or, &temp8_}),
/* 0xf7 RST 30h */ XX,
/* 0xf8 RET M */ RET(TestM), /* 0xf9 LD SP, HL */Program(WAIT(2), {MicroOp::Move16, &hl_.full, &sp_.full}),
/* 0xfa JP M */ JP(TestM), /* 0xfb EI */ XX,
/* 0xfa JP M */ JP(TestM), /* 0xfb EI */ Program({MicroOp::EI}),
/* 0xfc CALL M */ CALL(TestM), /* 0xfd [FD page] */Program({MicroOp::SetInstructionPage, fd_page_}),
/* 0xfe CP n */ Program(FETCH(temp8_, pc_), {MicroOp::CP8, &temp8_}),
/* 0xff RST 38h */ XX,
@ -765,6 +768,16 @@ template <class T> class Processor: public MicroOpScheduler<MicroOp> {
subtract_flag_ = half_carry_flag_ = 0;
} break;
#pragma mark - Interrupt state
case MicroOp::EI:
iff1_ = iff2_ = true;
break;
case MicroOp::DI:
iff1_ = iff2_ = false;
break;
#pragma mark - Internal bookkeeping
case MicroOp::SetInstructionPage: