#include "ultra64.h"
#include "carthandle.h"
#include "idle.h"
#include "m_thread.h"
#include "segment_symbols.h"
#include "stack.h"
#include "libu64/stackcheck.h"
#include "m_nmi_buf.h"

STACK(sIdleStack, 0x400);
StackEntry sIdleStackInfo;
StackEntry sBootStackInfo;
OSThread sIdleThread;
STACK(sBootStack, 0x400);

// original name unknown
void bootclear(void) {
    s32 size = (uintptr_t)bootclear - BOOT_ADDRESS_ULTRA;

    if (size > 0) {
        bzero((void*)BOOT_ADDRESS_ULTRA, size);
    }

    size = osMemSize - OS_K0_TO_PHYSICAL(SEGMENT_VRAM_START(dmadata));
    if (size > 0) {
        bzero(SEGMENT_VRAM_START(dmadata), size);
    }
}

void bootproc(void) {
    StackCheck_Init(&sBootStackInfo, sBootStack, STACK_TOP(sBootStack), 0, -1, "boot");

    osMemSize = 0x400000; // 4MB
    osInitialize();

    if (APPNMI_RESETEXEMPT2_GET()) {
        APPNMI_RESETEXEMPT2_CLR();
        APPNMI_RESETEXEMPT_SET();
    } else {
        APPNMI_RESETEXEMPT_CLR();
    }

    osUnmapTLBAll();
    bootclear();

    carthandle = osCartRomInit();

    StackCheck_Init(&sIdleStackInfo, sIdleStack, STACK_TOP(sIdleStack), 0, 0x100, "idle");
    osCreateThread(&sIdleThread, M_THREAD_ID_IDLE, Idle_ThreadEntry, NULL, STACK_TOP(sIdleStack), M_PRIORITY_IDLE);
    osStartThread(&sIdleThread);
}