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Tidy up some C++ code (concentrating on the Z80 at the moment).

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Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon
2021-01-09 08:41:48 +00:00
parent 26cc613c66
commit 4d2d1d214a
9 changed files with 301 additions and 260 deletions
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31
src/Processor.cpp
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@@ -21,6 +21,11 @@ void EightBit::Processor::memoryWrite(const register16_t address, const uint8_t
memoryWrite(data);
}
void EightBit::Processor::memoryWrite(const register16_t address) {
BUS().ADDRESS() = address;
memoryWrite();
}
void EightBit::Processor::memoryWrite(const uint8_t data) {
BUS().DATA() = data;
memoryWrite();
@@ -47,6 +52,28 @@ uint8_t EightBit::Processor::busRead() {
return BUS().read();
}
uint8_t EightBit::Processor::getBytePaged(const uint8_t page, const uint8_t offset) {
return memoryRead(register16_t(offset, page));
}
void EightBit::Processor::setBytePaged(const uint8_t page, const uint8_t offset, const uint8_t value) {
memoryWrite(register16_t(offset, page), value);
}
uint8_t EightBit::Processor::fetchByte() {
return memoryRead(PC()++);
}
EightBit::register16_t EightBit::Processor::getWord(const register16_t address) {
BUS().ADDRESS() = address;
return getWord();
}
void EightBit::Processor::setWord(const register16_t address, const register16_t value) {
BUS().ADDRESS() = address;
setWord(value);
}
int EightBit::Processor::run(const int limit) {
int current = 0;
while (LIKELY(powered() && (current < limit)))
@@ -67,6 +94,10 @@ int8_t EightBit::Processor::signExtend(const int b, uint8_t x) noexcept {
return result;
}
void EightBit::Processor::jump(const register16_t destination) noexcept {
PC() = destination;
}
void EightBit::Processor::call(const register16_t destination) {
pushWord(PC());
jump(destination);