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Merge pull request #2547 from sidneycadot/fix-jmp-ind

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Fixed the behavior of JMP (ind) in sim65 when it runs with the 6502X CPU type.
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Bob Andrews 2024-12-02 00:21:31 +01:00 committed by GitHub
commit 79e26c1bc5
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1 changed files with 9 additions and 17 deletions
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10
src/sim65/6502.c
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@ -1964,9 +1964,7 @@ static void OPC_6502_6C (void)
PC = Regs.PC;
Lo = MemReadWord (PC+1);
if (CPU == CPU_6502)
{
/* Emulate the 6502 bug */
/* Emulate the buggy 6502 behavior */
Cycles = 5;
Regs.PC = MemReadByte (Lo);
Hi = (Lo & 0xFF00) | ((Lo + 1) & 0xFF);
@ -1978,12 +1976,6 @@ static void OPC_6502_6C (void)
Warning ("6502 indirect jump bug triggered at $%04X, ind addr = $%04X",
PC, Lo);
}
}
else
{
Cycles = 6;
Regs.PC = MemReadWord(Lo);
}
ParaVirtHooks (&Regs);
}