oot/src/boot/z_locale.c

#include <ultra64.h>
#include <global.h>
#include <vt.h>
#include <padmgr.h>

u32 gCurrentRegion = 0;
LocaleCartInfo sCartInfo;

// temporary
extern PadMgr gPadMgr;

void Locale_Init() {
    osEPiReadIo(gCartHandle, 0x38, &sCartInfo.mediaFormat);
    osEPiReadIo(gCartHandle, 0x3C, &sCartInfo.regionInfo);

    switch (sCartInfo.countryCode) {
        case 'J': // "NTSC-U (North America)"
            gCurrentRegion = REGION_US;
            break;
        case 'E': // "NTSC-J (Japan)"
            gCurrentRegion = REGION_JP;
            break;
        case 'P': // "PAL (Europe)"
            gCurrentRegion = REGION_EU;
            break;
        default:
            osSyncPrintf(VT_COL(RED, WHITE));
            osSyncPrintf("z_locale_init: 日本用かアメリカ用か判別できません\n");
            LogUtils_HungupThread("../z_locale.c", 0x76);
            osSyncPrintf(VT_RST);
            break;
    }

    osSyncPrintf("z_locale_init:日本用かアメリカ用か３コンで判断させる\n");
}

void Locale_ResetRegion() {
    gCurrentRegion = REGION_NULL;
}

u32 func_80001F48() {
    PadMgr* padMgr = (PadMgr*)(u32)&gPadMgr; // cast required to match

    if (gCurrentRegion == REGION_NATIVE) {
        return 0;
    }

    if (padMgr->unk_2A8 & 4) {
        return 0;
    }

    return 1;
}

u32 func_80001F8C() {
    PadMgr* padMgr = (PadMgr*)(u32)&gPadMgr; // cast required to match

    if (gCurrentRegion == REGION_NATIVE) {
        return 0;
    }

    if (padMgr->unk_2A8 & 4) {
        return 1;
    }

    return 0;
}

// This function appears to be unused?
u32 Locale_IsRegionNative() {
    return gCurrentRegion == REGION_NATIVE;
}