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GBHawk: Fix DMG sprite evaluation (fixes Oh! Demo bug)

This commit is contained in:
alyosha-tas 2018-10-11 16:44:52 -05:00
parent 77938b0d1b
commit 41e217731d
1 changed files with 3 additions and 3 deletions
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6
BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/GB_PPU.cs
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@ -570,8 +570,8 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
// before we go on to read case 3, we need to know if we stall there or not // before we go on to read case 3, we need to know if we stall there or not
// Gekkio's tests show that if sprites are at position 0 or 1 (mod 8) // Gekkio's tests show that if sprites are at position 0 or 1 (mod 8)
// then it takes an extra cycle (1 or 2 more t-states) to process them // then it takes an extra cycle (1 or 2 more t-states) to process them
// Also, on DMG only, this process only runs if sprites are on in the LCDC (on GBC it always runs)
if (!no_sprites && (pixel_counter < 160)) if (!no_sprites && (pixel_counter < 160) && LCDC.Bit(1))
{ {
for (int i = 0; i < SL_sprites_index; i++) for (int i = 0; i < SL_sprites_index; i++)
{ {
@ -900,7 +900,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
{ {
fetch_sprite = false; fetch_sprite = false;
} }
} }
} }
} }