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#include "alu.inc"
.code
prolog
#define SUBX(N, I0, I1, V) ALUX(N, sub, I0, I1, V)
/* nothing */
SUBX(0, 0, 0, 0)
#if __WORDSIZE == 32
/* carry */
SUBX(1, 0x7fffffff, 0xffffffff, 0xffffffff)
/* overflow */
SUBX(2, 0x80000000, 1, 0)
/* carry */
SUBX(3, 0x7fffffff, 0x80000000, 0xffffffff)
/* overflow */
SUBX(4, 0x80000000, 0x7fffffff, 0)
/* carry+overflow */
SUBX(5, 1, 0x80000000, 0xffffffff)
#else
/* carry */
SUBX(1, 0x7fffffff, 0xffffffff, -1)
/* nothing */
SUBX(2, 0x80000000, 1, 0)
/* carry */
SUBX(3, 0x7fffffff, 0x80000000, -1)
/* nothing */
SUBX(4, 0x80000000, 0x7fffffff, 0)
/* carry */
SUBX(5, 1, 0x80000000, -1)
/* carry */
SUBX(6, 0x7fffffffffffffff, 0xffffffffffffffff, -1)
/* overflow */
SUBX(7, 0x8000000000000000, 1, 0)
/* carry */
SUBX(8, 0x7fffffffffffffff, 0x8000000000000000, -1)
/* overflow */
SUBX(9, 0x8000000000000000, 0x7fffffffffffffff, 0)
/* carry+overflow */
SUBX(10,1, 0x8000000000000000, -1)
#endif
prepare
pushargi ok
ellipsis
finishi @printf
ret
epilog
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