Re: [stella] Severe Bug in PCAE discovered...

Subject: Re: [stella] Severe Bug in PCAE discovered...
From: Dan Iacovelli <Dan-AVC@xxxxxxx>
Date: Mon, 19 Nov 2001 19:46:03 -0600
At 11:53 PM 11/19/2001 +0100, you wrote:
Hi there!

When giving Gunfight its final touches, I stumbled
across some very severe bug in PCAE, which I think
everybody developing on this emulator should be aware

There's a bug with SBC $$$$,X.
It is changing the ROM contents!
For example this simple loop:

                    LDX #$00
                    SBC $F000,X
                            BPL NextByte

Would not only change the accumulator as intended, but
completely overwrite all F0XX bytes too!

There might occure other errors with other indirect
addressing opcodes as well, I didn't test them all.
(Just the one ruining Gunfight :-))


is this with pcaewin or the dos version? I use the windows version mostly. Dan Iacovelli

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