?? dup.s
字號(hào):
/ C library -- dup/ f = dup(of [ ,nf])/ f == -1 for error.globl _dup,_dup2.globl cerror.dup = 41._dup2: mov r5,-(sp) mov sp,r5 mov 4(r5),r0 bis $100,r0 br 1f_dup: mov r5,-(sp) mov sp,r5 mov 4(r5),r01: mov 6(r5),r1 sys .dup bec 1f jmp cerror1: mov (sp)+,r5 rts pc?? 快捷鍵說(shuō)明
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