diff options
Diffstat (limited to 'src/Dolphin/GBA/GBARead.c')
-rw-r--r-- | src/Dolphin/GBA/GBARead.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/Dolphin/GBA/GBARead.c b/src/Dolphin/GBA/GBARead.c new file mode 100644 index 0000000..ab19bbb --- /dev/null +++ b/src/Dolphin/GBA/GBARead.c @@ -0,0 +1,42 @@ +#include "dolphin/GBAPriv.h" + +void ReadProc(s32 chan) { + GBA* gba; + gba = &__GBA[chan]; + + if (gba->result == 0) { + memcpy(gba->buffer, &gba->dst, 4); + gba->status[0] = gba->_09 & GBA_JSTAT_MASK; + } +} + +s32 GBAReadAsync(s32 chan, u8* dst, u8* status, GBACallback callback) { + GBA* gba; + s32 ret; + + gba = &__GBA[chan]; + + if (gba->callback != NULL) { + ret = 2; + } else { + gba->command = 0x14; + gba->buffer = dst; + gba->status = status; + gba->callback = callback; + ret = __GBATransfer(chan, 1, 5, ReadProc); + } + + return ret; +} + + +s32 GBARead(s32 chan, u8* dst, u8* status) { + s32 tmp; + s32 ret; + ret = GBAReadAsync(chan, dst, status, __GBASyncCallback); + if (ret != GBA_READY) { + return ret; + } + + return __GBASync(chan); +} |