piwalker/melonDS
1
0
Fork 0
mirror of https://github.com/melonDS-emu/melonDS.git synced 2025-07-26 15:50:00 -06:00
Code Issues Packages Projects Releases Wiki Activity

keep the GPU from crashing if there's no VRAM mapped, I guess.

Browse Source 
noting that the way it's accessing VRAM is grossly inaccurate.
This commit is contained in:
StapleButter
2017-01-31 04:06:05 +01:00
parent 594286ee5d
commit 12ebf83665
3 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
GPU2D.cpp
View File

@ -239,6 +239,7 @@ void GPU2D::DrawBG_Text_4bpp(u32 line, u16* dst, u32 bgnum)
{
tileset = (u8*)GPU::VRAM_BBG[((bgcnt & 0x003C) >> 2)];
tilemap = (u16*)GPU::VRAM_BBG[((bgcnt & 0x1800) >> 11)];
if (!tileset || !tilemap) return;
tilemap += ((bgcnt & 0x0700) << 2);
pal = (u16*)&GPU::Palette[0x400];
@ -247,6 +248,7 @@ void GPU2D::DrawBG_Text_4bpp(u32 line, u16* dst, u32 bgnum)
{
tileset = (u8*)GPU::VRAM_ABG[((DispCnt & 0x07000000) >> 22) + ((bgcnt & 0x003C) >> 2)];
tilemap = (u16*)GPU::VRAM_ABG[((DispCnt & 0x38000000) >> 27) + ((bgcnt & 0x1800) >> 11)];
if (!tileset || !tilemap) return;
tilemap += ((bgcnt & 0x0700) << 2);
pal = (u16*)&GPU::Palette[0];