CoCalc -- __osAtomicDec.c

GitHub Repository: MorsGames/sm64plus
Path: blob/master/lib/src/__osAtomicDec.c
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#include "libultra_internal.h"
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s32 __osAtomicDec(u32 *a0) {
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    s32 sp1c;
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    s32 sp18;
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    sp1c = __osDisableInt();
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    if (*a0 != 0) {
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        (*a0)--;
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        sp18 = 1;
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    } else {
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        sp18 = 0;
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    }
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    __osRestoreInt(sp1c);
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    return sp18;
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}
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