src/libultra/io/pirawread.c


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#include "PR/assert.h"
#include "PR/ultraerror.h"
#include "piint.h"

// Adjust line numbers to match assert
#if BUILD_VERSION < VERSION_J
#line 46
#endif

// TODO: this comes from a header
#ident "$Revision: 1.17 $"

s32 __osPiRawReadIo(u32 devAddr, u32* data) {
    register u32 stat;

#ifdef _DEBUG
    if (devAddr & 0x3) {
        __osError(ERR_OSPIRAWREADIO, 1, devAddr);
        return -1;
    }
#endif

    assert(data != NULL);

    WAIT_ON_IOBUSY(stat);
    *data = IO_READ((u32) osRomBase | devAddr);

    return 0;
}