86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
#include "global.h"
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typedef struct {
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u32 ins_00; // lui k0, 0x8000
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u32 ins_04; // addiu k0, k0, 0x39E0
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u32 ins_08; // jr k0 ; __osException
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u32 ins_0C; // nop
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} struct_exceptionPreamble;
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u64 osClockRate = OS_CLOCK_RATE;
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s32 osViClock = VI_NTSC_CLOCK;
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u32 __osShutdown = 0;
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OSHWIntr __OSGlobalIntMask = OS_IM_ALL;
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u32 D_800145C0;
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void __createSpeedParam(void) {
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__Dom1SpeedParam.type = DEVICE_TYPE_INIT;
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__Dom1SpeedParam.latency = HW_REG(PI_BSD_DOM1_LAT_REG, u32);
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__Dom1SpeedParam.pulse = HW_REG(PI_BSD_DOM1_PWD_REG, u32);
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__Dom1SpeedParam.pageSize = HW_REG(PI_BSD_DOM1_PGS_REG, u32);
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__Dom1SpeedParam.relDuration = HW_REG(PI_BSD_DOM1_RLS_REG, u32);
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__Dom2SpeedParam.type = DEVICE_TYPE_INIT;
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__Dom2SpeedParam.latency = HW_REG(PI_BSD_DOM2_LAT_REG, u32);
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__Dom2SpeedParam.pulse = HW_REG(PI_BSD_DOM2_PWD_REG, u32);
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__Dom2SpeedParam.pageSize = HW_REG(PI_BSD_DOM2_PGS_REG, u32);
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__Dom2SpeedParam.relDuration = HW_REG(PI_BSD_DOM2_RLS_REG, u32);
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}
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void __osInitialize_common(void) {
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u32 sp2C;
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D_800145C0 = 1;
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__osSetSR(__osGetSR() | SR_CU1);
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__osSetFpcCsr(FPCSR_FS | FPCSR_EV);
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__osSetWatchLo(0x4900000);
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while (__osSiRawReadIo((void*)(PIF_RAM_START + 0x3C), &sp2C)) {
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;
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}
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while (__osSiRawWriteIo((void*)(PIF_RAM_START + 0x3C), sp2C | 8)) {
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;
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}
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*(struct_exceptionPreamble*)UT_VEC = *(struct_exceptionPreamble*)__osExceptionPreamble; // TLB miss
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*(struct_exceptionPreamble*)XUT_VEC = *(struct_exceptionPreamble*)__osExceptionPreamble; // XTLB miss
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*(struct_exceptionPreamble*)ECC_VEC = *(struct_exceptionPreamble*)__osExceptionPreamble; // cache errors
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*(struct_exceptionPreamble*)E_VEC = *(struct_exceptionPreamble*)__osExceptionPreamble; // general exceptions
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osWritebackDCache(K0BASE, E_VEC - K0BASE + sizeof(struct_exceptionPreamble));
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osInvalICache(K0BASE, E_VEC - K0BASE + sizeof(struct_exceptionPreamble));
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__createSpeedParam();
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osUnmapTLBAll();
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osMapTLBRdb();
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osClockRate = (u64)((osClockRate * 3ll) / 4ull);
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if (!osResetType) {
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bzero(osAppNmiBuffer, sizeof(osAppNmiBuffer));
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}
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if (osTvType == OS_TV_PAL) {
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osViClock = VI_PAL_CLOCK;
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} else if (osTvType == OS_TV_MPAL) {
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osViClock = VI_MPAL_CLOCK;
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} else {
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osViClock = VI_NTSC_CLOCK;
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}
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// Wait until there are no RCP interrupts
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if (__osGetCause() & CAUSE_IP5) {
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while (true) {
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;
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}
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}
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HW_REG(AI_CONTROL_REG, u32) = 1;
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HW_REG(AI_DACRATE_REG, u32) = 0x3FFF;
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HW_REG(AI_BITRATE_REG, u32) = 0xF;
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}
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void __osInitialize_autodetect(void) {
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}
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