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- /*#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
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