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6502: Better wrapping for the executing/executed events to avoid "fetchByte" issue.

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Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
This commit is contained in:
Adrian.Conlon 2017-07-06 12:02:41 +01:00
parent 4cd2dc68e1
commit 04fd979e56
1 changed files with 4 additions and 3 deletions
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7
M6502/src/mos6502.cpp
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@ -25,7 +25,10 @@ void EightBit::MOS6502::initialise() {
}
int EightBit::MOS6502::step() {
return Execute(FetchByte());
ExecutingInstruction.fire(*this);
auto returned = Execute(FetchByte());
ExecutedInstruction.fire(*this);
return returned;
}
void EightBit::MOS6502::Reset() {
@ -56,12 +59,10 @@ void EightBit::MOS6502::Interrupt(uint16_t vector) {
int EightBit::MOS6502::Execute(uint8_t cell) {
cycles = 0;
ExecutingInstruction.fire(*this);
const auto& instruction = instructions[cell];
const auto& method = instruction.vector;
method();
cycles += instruction.count;
ExecutedInstruction.fire(*this);
return cycles;
}