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- ;void clr_ins();
-
- EXTRN _memory_model:byte
-
- _TEXT SEGMENT BYTE PUBLIC 'CODE'
- ASSUME CS:_TEXT
- PUBLIC _clr_ins
- _clr_ins proc near
- sub ax,ax ;clear AX
- mov es,ax ;ES pts to 0000:0000
- mov al,01111111B ;bit 7
- and es:[417H],al ;clear the bit
- cmp _memory_model,0 ;quit
- jle quit ;
- db 0CBh ;RET far
- quit: ret ;RET near
- _clr_ins ENDP
- _TEXT ENDS
- END