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More consistency updates between i8080 and Z80.

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon
2017-12-04 23:41:49 +00:00
parent 1bf797490b
commit 6a47f710b9
3 changed files with 10 additions and 2 deletions
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2
Intel8080/inc/Intel8080.h
View File

@@ -36,6 +36,8 @@ namespace EightBit {
virtual register16_t& DE() override; virtual register16_t& DE() override;
virtual register16_t& HL() override; virtual register16_t& HL() override;
virtual void reset() override;
private: private:
bool m_interruptEnable = false; bool m_interruptEnable = false;
bool m_intLine = false; bool m_intLine = false;

6
Intel8080/src/Intel8080.cpp
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@@ -25,6 +25,12 @@ EightBit::register16_t& EightBit::Intel8080::HL() {
return hl; return hl;
} }
void EightBit::Intel8080::reset() {
IntelProcessor::reset();
INT() = false;
di();
}
void EightBit::Intel8080::di() { void EightBit::Intel8080::di() {
m_interruptEnable = false; m_interruptEnable = false;
} }

4
Z80/src/Z80.cpp
View File

@@ -28,6 +28,7 @@ void EightBit::Z80::reset() {
IntelProcessor::reset(); IntelProcessor::reset();
INT() = NMI() = false;
di(); di();
IM() = 0; IM() = 0;
@@ -662,9 +663,8 @@ int EightBit::Z80::step() {
if (IFF1()) { if (IFF1()) {
di(); di();
switch (IM()) { switch (IM()) {
case 0: case 0: // i8080 equivalent
return execute(BUS().DATA()); return execute(BUS().DATA());
break;
case 1: case 1:
restart(7 << 3); restart(7 << 3);
addCycles(13); addCycles(13);