Comments (3)
xTibor
commented on May 26, 2024
The failing S8 (U16 load) tests may be the most visible one among these, I have a feeling those ones are causing the striped graphics corruptions in Doom 2 and in the demoscene stuff from SFC.
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michelhe
commented on May 26, 2024
I think doom 2 specifically has something to do with the fact that I'm allowing u8 stores to VRAM.
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michelhe
commented on May 26, 2024
From GBATek
Writing 8bit Data to Video Memory
Video Memory (BG, OBJ, OAM, Palette) can be written to in 16bit and 32bit units only. Attempts to write 8bit data (by STRB opcode) won't work:
Writes to OBJ (6010000h-6017FFFh) (or 6014000h-6017FFFh in Bitmap mode) and to OAM (7000000h-70003FFh) are ignored, the memory content remains unchanged.
Writes to BG (6000000h-600FFFFh) (or 6000000h-6013FFFh in Bitmap mode) and to Palette (5000000h-50003FFh) are writing the new 8bit value to BOTH upper and lower 8bits of the addressed halfword, ie. "[addr AND NOT 1]=data*101h".
from rustboyadvance-ng.
Related Issues (20)
- Update gba-suite
- Dragon Ball Z: Supersonic Warriors - Sprite ordering issues HOT 1
- Missing forced blanking implementation HOT 1
- Games panicking with 'forbidden DMA source address adjustment' HOT 2
- Panic on invalid CPU modes HOT 2
- Mary-Kate and Ashley Sweet 16 - invalid arm condition HOT 2
- WWF Road to WrestleMania - Invalid mode 6 graphics mode HOT 4
- Pokémon GBA Video cartridges - Garbage sprites at the top left corner HOT 7
- NFL Blitz 20-02 (USA) - Glitch
- Happy Feet (USA) - Flickering corrupt graphics HOT 6
- Drake & Josh (USA) - Flickering corrupt graphics HOT 4
- Segmentation fault in SysBus::read_8 HOT 11
- Android Loading of snapshot not working HOT 5
- Audio cracking issue on Android in turbo mode HOT 4
- Golden Sun - The Lost Age - Sprite glitch HOT 2
- The Game will stop HOT 5
- Android application HOT 7
- "attempt to subtract with overflow" when rendering second frame HOT 3
- Will not compile with cargo build --release HOT 2
- Dragon Ball Z The Legacy of Goku - Incorrect colors HOT 3
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