doppio% cat /sys/src/libc/386/setjmp.s
TEXT longjmp(SB), $0
MOVL r+4(FP), AX
CMPL AX, $0
JNE ok /* ansi: "longjmp(0) => longjmp(1)" */
MOVL $1, AX /* bless their pointed heads */
...--- Begin Message ---As seen in plan9ports' sort.c:n -= off1; /* posix committee: rot in hell */ -J
--- End Message ---
