📄 read.asm
字号:
NAME READ
;BYTE can_read(BYTE a)
?PR?_CAN_READ?READ SEGMENT CODE
?DT?_CAN_READ?READ SEGMENT DATA OVERLAYABLE
PUBLIC _can_read
RSEG ?DT?_CAN_READ?READ
USING 0
?_can_read?BYTE:
a?00: DS 1
RSEG ?PR?_CAN_READ?READ
_can_read:NOP
MOV a?00,R7
MOV DPTR,#2000H
MOV A,DPL
ADD A,R7
MOV DPL,A
MOVX A,@DPTR
MOV R7,A
RET
END
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