88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
#include "libultra_internal.h"
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// TODO: document
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OSTimer D_80365D80;
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OSTimer *D_80334830 = &D_80365D80;
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OSTime _osCurrentTime;
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u32 D_80365DA8;
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u32 D_80365DAC;
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u32 D_80365DB0;
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void __osTimerServicesInit() {
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_osCurrentTime = 0;
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D_80365DA8 = 0;
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D_80365DAC = 0;
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D_80334830->prev = D_80334830;
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D_80334830->next = D_80334830->prev;
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D_80334830->remaining = 0;
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D_80334830->interval = D_80334830->remaining;
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D_80334830->mq = NULL;
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D_80334830->msg = NULL;
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}
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void __osTimerInterrupt() {
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OSTimer *sp24;
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u32 sp20;
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u32 sp1c;
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if (D_80334830->next == D_80334830) {
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return;
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}
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while (1) {
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sp24 = D_80334830->next;
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if (sp24 == D_80334830) {
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__osSetCompare(0);
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D_80365DB0 = 0;
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break;
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}
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sp20 = osGetCount();
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sp1c = sp20 - D_80365DB0;
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D_80365DB0 = sp20;
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if (sp1c < sp24->remaining) {
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sp24->remaining -= sp1c;
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__osSetTimerIntr(sp24->remaining);
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return;
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} else {
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sp24->prev->next = sp24->next;
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sp24->next->prev = sp24->prev;
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sp24->next = NULL;
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sp24->prev = NULL;
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if (sp24->mq != NULL) {
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osSendMesg(sp24->mq, sp24->msg, OS_MESG_NOBLOCK);
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}
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if (sp24->interval != 0) {
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sp24->remaining = sp24->interval;
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__osInsertTimer(sp24);
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}
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}
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}
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}
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void __osSetTimerIntr(u64 a0) {
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u64 tmp;
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s32 intDisabled = __osDisableInt();
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D_80365DB0 = osGetCount();
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tmp = a0 + D_80365DB0;
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__osSetCompare(tmp);
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__osRestoreInt(intDisabled);
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}
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u64 __osInsertTimer(OSTimer *a0) {
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OSTimer *sp34;
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u64 sp28;
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s32 intDisabled;
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intDisabled = __osDisableInt();
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for (sp34 = D_80334830->next, sp28 = a0->remaining; sp34 != D_80334830 && sp28 > sp34->remaining;
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sp28 -= sp34->remaining, sp34 = sp34->next) {
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;
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}
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a0->remaining = sp28;
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if (sp34 != D_80334830) {
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sp34->remaining -= sp28;
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}
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a0->next = sp34;
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a0->prev = sp34->prev;
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sp34->prev->next = a0;
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sp34->prev = a0;
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__osRestoreInt(intDisabled);
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return sp28;
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}
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