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GB: Properly clear KEY1 bit 0 when switching speeds

This commit is contained in:
Jeffrey Pfau 2016-09-27 01:42:09 -07:00
parent 06ee3340f9
commit 3a0b8af70a
2 changed files with 2 additions and 1 deletions
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1
CHANGES
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@ -21,6 +21,7 @@ Bugfixes:
- GBA Hardware: Improve Game Boy Player rumble behavior - GBA Hardware: Improve Game Boy Player rumble behavior
- GB: Initialize audio properly - GB: Initialize audio properly
- GB MBC: Fix RTC access when no save file is loaded - GB MBC: Fix RTC access when no save file is loaded
- GB: Properly clear KEY1 bit 0 when switching speeds
Misc: Misc:
- All: Only update version info if needed - All: Only update version info if needed
- FFmpeg: Encoding cleanup - FFmpeg: Encoding cleanup

2
src/gb/gb.c
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@ -572,7 +572,7 @@ void GBStop(struct LR35902Core* cpu) {
} }
if (gb->memory.io[REG_KEY1] & 1) { if (gb->memory.io[REG_KEY1] & 1) {
gb->doubleSpeed ^= 1; gb->doubleSpeed ^= 1;
gb->memory.io[REG_KEY1] &= 1; gb->memory.io[REG_KEY1] = 0;
gb->memory.io[REG_KEY1] |= gb->doubleSpeed << 7; gb->memory.io[REG_KEY1] |= gb->doubleSpeed << 7;
} else if (cpu->bus) { } else if (cpu->bus) {
if (cpu->components && cpu->components[CPU_COMPONENT_DEBUGGER]) { if (cpu->components && cpu->components[CPU_COMPONENT_DEBUGGER]) {