strncat.mac

来自「这是一个８０８６和８０８８系列机的编译器的源码」· MAC 代码 · 共 98 行

 INCLUDE PROLOG.H
_CC1:
 PUBLIC _strncat
_strncat:
 SUB SP,2
 MOV BX,0
 ADD BX,SP
 XCHG DX,BX
 MOV BX,08
 ADD BX,SP
 MOV BX,[BX]
 MOV SI,DX
 MOV [SI],BX
 MOV BX,8
 ADD BX,SP
 MOV DX,BX
 MOV BX,[BX]
 DEC BX
 MOV SI,DX
 MOV [SI],BX
_CC3:
 MOV BX,8
 ADD BX,SP
 MOV DX,BX
 MOV BX,[BX]
 INC BX
 MOV SI,DX
 MOV [SI],BX
 MOV AL,[BX]
 CBW
 MOV BX,AX
 OR BX,BX
 JNZ $+5
 JMP _CC4
 JMP _CC3
_CC4:
_CC5:
 MOV BX,4
 ADD BX,SP
 MOV DX,BX
 MOV BX,[BX]
 DEC BX
 MOV SI,DX
 MOV [SI],BX
 INC BX
 OR BX,BX
 JNZ $+5
 JMP _CC6
 MOV BX,8
 ADD BX,SP
 MOV DX,BX
 MOV BX,[BX]
 INC BX
 MOV SI,DX
 MOV [SI],BX
 DEC BX
 PUSH BX  ;
 MOV BX,8
 ADD BX,SP
 MOV DX,BX
 MOV BX,[BX]
 INC BX
 MOV SI,DX
 MOV [SI],BX
 DEC BX
 MOV AL,[BX]
 CBW
 MOV BX,AX
 POP DX
 MOV SI,DX
 MOV [SI],BL
 OR BX,BX
 JNZ $+5
 JMP _CC7
 JMP _CC5
_CC7:
 MOV BX,0
 ADD BX,SP
 MOV BX,[BX]
 ADD SP,2
 RET
 JMP _CC5
_CC6:
 MOV BX,8
 ADD BX,SP
 MOV BX,[BX]
 XCHG DX,BX
 MOV BX,0
 MOV SI,DX
 MOV [SI],BL
 MOV BX,0
 ADD BX,SP
 MOV BX,[BX]
 ADD SP,2
 RET
 INCLUDE EPILOG.H
 END