ref: 8757154228aeef25a2e7bebada5b10a3a5df5900
dir: /sys/src/libthread/xinc386.s/
/*#define XADDL(s,d) BYTE $0x0F; BYTE $0xC1; BYTE $((0<<6)|(s<<3)|(d))*/ /*TEXT xadd(SB),$0 /* long xadd(long *, long); */ /* MOVL l+0(FP),BX /* MOVL i+4(FP),AX /* LOCK /* XADDL(0,3) /* RET */ TEXT _xinc(SB),$0 /* void _xinc(long *); */ MOVL l+0(FP),AX LOCK INCL 0(AX) RET TEXT _xdec(SB),$0 /* long _xdec(long *); */ MOVL l+0(FP),AX LOCK DECL 0(AX) JZ iszero MOVL $1, AX RET iszero: MOVL $0, AX RET