diff options
Diffstat (limited to 'src/GPU.cpp')
| -rw-r--r-- | src/GPU.cpp | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/GPU.cpp b/src/GPU.cpp index aaef43f..5b9bf33 100644 --- a/src/GPU.cpp +++ b/src/GPU.cpp @@ -678,13 +678,23 @@ void StartScanline(u32 line) else DispStat[1] &= ~(1<<2); + if (line >= 2 && line < 194) + NDS::CheckDMAs(0, 0x03); + else if (line == 194) + NDS::StopDMAs(0, 0x03); + if (line < 192) { + // fill a line from the display FIFO if needed. + // this isn't how the real thing works, but emulating it + // properly would be too much trouble given barely anything + // uses FIFO display + // (TODO, eventually: emulate it properly) + NDS::CheckDMAs(0, 0x04); + // draw GPU2D_A->DrawScanline(line); GPU2D_B->DrawScanline(line); - - //NDS::ScheduleEvent(LINE_CYCLES, StartScanline, line+1); } else if (line == 262) { @@ -701,6 +711,8 @@ void StartScanline(u32 line) DispStat[0] |= (1<<0); DispStat[1] |= (1<<0); + NDS::StopDMAs(0, 0x04); + NDS::CheckDMAs(0, 0x01); NDS::CheckDMAs(1, 0x11); @@ -711,14 +723,8 @@ void StartScanline(u32 line) GPU2D_B->VBlank(); GPU3D::VBlank(); } - - //NDS::ScheduleEvent(LINE_CYCLES, StartScanline, line+1); - //NDS::ScheduleEvent(NDS::Event_LCD, true, LINE_CYCLES, StartScanline, line+1); } - // checkme - if (line == 0) NDS::CheckDMAs(0, 0x03); - NDS::ScheduleEvent(NDS::Event_LCD, true, HBLANK_CYCLES, StartHBlank, line); } |