这段程序没读懂,谁有空哈哈考虑帮我看看哈
ORG 00H
SJMP START
START: MOV SP,#5FH
MOV DPTR,#7FFFH
MAIN: MOV R0,#2
MOV A,#00H
PUSH A
CESHI: JNB P3.2,LOOP
AJMP BACK
LOOP: POP A
MOVX @DPTR,A
INC A
PUSH A
XRL A,#0FFH
JNZ CESHI
BACK: JNB P3.2,FAI
DJNZ R0,DECI
AJMP AVE
FAI: MOV A,#00H
PUSH A
AJMP LOOP
DECI: POP A
DEC A
CJNE A,#00H,NIG
PUSH A
AJMP LOOP
NIG: MOVX @DPTR,A
PUSH A
JNB P3.2,ADJUST
AJMP DECI
ADJUST: POP A
MOV R1,A
AJMP CESHI
AVE: MOV R7,#10
AJMP DELAY
LOOP1: MOV A,R1
MOV B,#2
DIV AB
MOVX @DPTR,A
JB P3.2,$
PUSH A
MOV R0,#2
AJMP CESHI
DELAY: ;延时子程序
A1: MOV R6,#100
A2: MOV R5,#200
A3: NOP
NOP
NOP
DJNZ R5,A3
DJNZ R6,A2
DJNZ R7,A1
AJMP LOOP1
跳转来跳转去,我都不知道A里面存了什么宝贝?
头晕~~~~~~~谁帮我分析,以后见你贴我就狂顶~~~~~~~~~~~~~~~~哈哈 |
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