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Simplify this

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This commit is contained in:
twinaphex 2016-02-03 21:57:45 +01:00
parent 852ed9a1a4
commit 6fa11f5dfb
1 changed files with 5 additions and 3 deletions
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8
mednafen/psx/gpu.cpp
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@ -1437,14 +1437,16 @@ int32_t PS_GPU::Update(const int32_t sys_timestamp)
//
//
//
//
unsigned displayfb_yoffset = DisplayFB_CurYOffset;
// Needs to occur even in vblank.
// Not particularly confident about the timing of this in regards to vblank and the upper bit(ODE) of the GPU status port, though the test that
// showed an oddity was pathological in that VertEnd < VertStart in it.
if((DisplayMode & 0x24) == 0x24)
DisplayFB_CurLineYReadout = (DisplayFB_YStart + (DisplayFB_CurYOffset << 1) + (InVBlank ? 0 : field_ram_readout)) & 0x1FF;
else
DisplayFB_CurLineYReadout = (DisplayFB_YStart + DisplayFB_CurYOffset) & 0x1FF;
displayfb_yoffset = (DisplayFB_CurYOffset << 1) + (InVBlank ? 0 : field_ram_readout);
DisplayFB_CurLineYReadout = (DisplayFB_YStart + displayfb_yoffset) & 0x1FF;
unsigned dmw_width = 0;
unsigned pix_clock_offset = 0;