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cpu/decoder - Implement INC rr and DEC rr

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madmaurice 2023-08-29 23:04:59 +02:00
parent e893d2b9f5
commit 8f1b1eb924
1 changed files with 10 additions and 0 deletions
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10
cpu/decoder.cpp
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@ -119,6 +119,16 @@ void Cpu::executeInstruction()
break;
}
}
else if((op & 0xCF) == 0x03) // INC rr
{
state.reg16((op >> 4) & 0x3) += 1;
mcycles = 2;
}
else if((op & 0xCF) == 0x0B) // INC rr
{
state.reg16((op >> 4) & 0x3) -= 1;
mcycles = 2;
}
else if((op & 0xE7) == 0xC2) // JP cc, nn:
{
u16 nn = readPC16();