tp/libs/dolphin/os/OSResetSW.c

101 lines
2.8 KiB
C

#include "dolphin/os/OSResetSW.h"
#include "dolphin/os.h"
#include "dolphin/os/OSReset.h"
u8 GameChoice : (OS_BASE_CACHED | 0x30E3);
void __OSResetSWInterruptHandler(__OSInterrupt interrupt, OSContext* context);
/* 804516A0-804516A4 000BA0 0004+00 1/1 0/0 0/0 .sbss ResetCallback */
static OSResetCallback ResetCallback;
/* 804516A4-804516A8 000BA4 0004+00 2/2 0/0 0/0 .sbss Down */
static BOOL Down;
/* 804516A8-804516B0 000BA8 0004+04 2/2 0/0 0/0 .sbss LastState */
static BOOL LastState;
/* 804516B0-804516B4 000BB0 0004+00 1/1 0/0 0/0 .sbss HoldUp */
static OSTime HoldUp;
/* 804516B8-804516BC 000BB8 0004+00 2/2 0/0 0/0 .sbss HoldDown */
static OSTime HoldDown;
/* 8033FAE4-8033FBD8 33A424 00F4+00 0/0 1/1 0/0 .text __OSResetSWInterruptHandler */
void __OSResetSWInterruptHandler(__OSInterrupt interrupt, OSContext* context) {
OSResetCallback callback;
HoldDown = __OSGetSystemTime();
while (__OSGetSystemTime() - HoldDown < OSMicrosecondsToTicks(100) &&
!(__PIRegs[0] & 0x00010000)) {
;
}
if (!(__PIRegs[0] & 0x00010000)) {
LastState = Down = TRUE;
__OSMaskInterrupts(OS_INTERRUPTMASK_PI_RSW);
if (ResetCallback) {
callback = ResetCallback;
ResetCallback = NULL;
callback();
}
}
__PIRegs[0] = 2;
}
/* 8033FBD8-8033FE70 33A518 0298+00 1/1 0/0 0/0 .text OSGetResetButtonState */
BOOL OSGetResetButtonState(void) {
BOOL enabled = OSDisableInterrupts();
BOOL state;
OSTime now = __OSGetSystemTime();
u32 reg = __PIRegs[0];
if (!(reg & 0x00010000)) {
if (!Down) {
Down = TRUE;
state = HoldUp ? TRUE : FALSE;
HoldDown = now;
} else {
state = HoldUp || (OSMicrosecondsToTicks(100) < now - HoldDown)
? TRUE
: FALSE;
}
} else if (Down) {
Down = FALSE;
state = LastState;
if (state) {
HoldUp = now;
} else {
HoldUp = 0;
}
} else if (HoldUp && (now - HoldUp < OSMillisecondsToTicks(40))) {
state = TRUE;
} else {
state = FALSE;
HoldUp = 0;
}
LastState = state;
if (GameChoice & 0x1F) {
OSTime fire = (GameChoice & 0x1F) * 60;
fire = __OSStartTime + OSSecondsToTicks(fire);
if (fire < now) {
now -= fire;
now = OSTicksToSeconds(now) / 2;
if ((now & 1) == 0) {
state = TRUE;
} else {
state = FALSE;
}
}
}
OSRestoreInterrupts(enabled);
return state;
}
/* 8033FE70-8033FE90 33A7B0 0020+00 0/0 1/1 0/0 .text OSGetResetSwitchState */
BOOL OSGetResetSwitchState(void) {
return OSGetResetButtonState();
}