Posted By
Csabo
on 2025-01-06
09:56:56
|  Re: Godzilla in Yape(+SDL) and Soft Reset(F11)
Actually it's a lot simpler. That text should be never visible (very nice find though!).
The end of the reset code in Godzilla (starting from $7968) writes $56 to $FF06/$FF07, which is an "invalid" combination. A nicer way of writing that - for PAL systems anyway - would be >FF06 5B 18 This turns on ECM mode and multicolor mode at the same time, which is not possible. The TED will generate a blank, black screen. (The $56 value for $FF07 also switches the machines to NTSC mode, which is why YAPE and Plus4Emu display slightly different outputs.) |
