TBL StartStruck demo Glitches at RPI4/CM4 default CPU clock (1.5GHZ) - Githubissues

michalsc / Emu68

M68K emulation for AArch64/AArch32

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TBL StartStruck demo Glitches at RPI4/CM4 default CPU clock (1.5GHZ) #279

Open pcotter72 opened 6 months ago

pcotter72 commented 6 months ago

This particular demo shows GFX glitches in using the RPI4/CM4 at default 1.5GHZ

Kernel used: git:98b83c7 CM4:

Amiga 1200 1D4 Budgie Rev 0
Overclocked to 1.8 GHZ (arm_freq=1800 in config.txt). No GFX corruption.
Reset to default 1.5 GHZ (emu68info SETCLOCKRATE 1500) GFX corruption

PI4B: 1.8 GHZ (arm_boost=1 in config.txt) At default 1.5 GHZ (emu68info SETCLOCKRATE 1500)

GFX corruption At 1.8 GHZ (emu68info SETCLOCKRATE 1800) No GFX corruption.

Demo download: https://files.scene.org/view/parties/2006/assembly06/demo/tbl-starstruck-finalversion.zip Movie by Kifla exposing the glitch: https://github.com/michalsc/Emu68/assets/29791360/8c1ee2dc-32f8-4fa6-a314-3e8666be0f5c