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1、1清零实验1：将30H40H单元清零ORG0000AJMPMAINORG0030HMAIN:MOVSP,#60HMOVR0,#0MOVDPTR,#8000HMOVA,#0ABHLOOP:MOVX@DPTR,AINCDPTRDJNZR0,LOOPAJMP$END2拆字实验ORG0000HAJMPMAINORG0030HMAIN:MOVSP,#60HMOVDPTR,#0E100H//8155命令口（8155初始化开始）MOVA,#3//PAPB口输出，PC口输出MOVX@DPTR,A//（8155初始化完）MOV20H,#34H//将34H送20HMOVA,20H//读出20H单元的数ACAL
2、LCHAI//调用拆字子程序//**显示子程序送三个入口参数LOOP:MOVR0,#10H//显示缓冲区首地址MOVR1,#2//数码管显示位数（2位）MOVR2,#1//显示数码管的低位地址；ACALLDISPLAY//调用显示子程序AJMPLOOPDISPLAY:MOVA,@R0;读显示数MOV0FH,#8;164移位次数ACALLP164;字形码输出子程序ACALLPBIT;字位码输出子程序ACALLDELAY;延时2msMOVA,#0;熄灭显示MOVX@DPTR,AINCR0;指向下一位显示数DJNZR1,DISPLAY;没有显示完继续RETP164:MOVDPTR,#TABMOV
3、CA,@A+DPTRP164_1:RRCAMOVR3,AMOVACC.0,CANLA,#0FDHMOVDPTR,#0E102HMOVX@DPTR,AORLA,#0FEHMOVX@DPTR,AMOVA,R3DJNZ0FH,P164_1MOV0FH,#8RETPBIT:MOVDPTR,#0E101HMOVA,R2MOVX@DPTR,ARLAMOVR2,ARETDELAY:MOVR6,#4DEL:MOVR7,#250DJNZR7,$DJNZR6,DELRETTAB:DB0FCH,60H,0DAH,0F2H,66H,0B6H,0BEH,0E0HDB0FEH,0F6H,0EEH,3EH,9CH,7A
4、H,9EH,8EH//拆字子程序CHAI:MOVB,#10H//立即数10H送BDIVAB//A/BMOV10H,B//B送10H单元（低4位）MOV11H,A//A送11H单元（高4位）RET//子程序返回END3闪烁灯实验ORG0000HAJMPMAINORG0030HMAIN:MOVSP,#60HMOVR4,#10LOOP1:CLRP3.3LOOP3:JBP3.5,LOOP1JBP3.4,LOOP2JNBP3.4,$DJNZR4,LOOP2MOVR4,#10LOOP2:CPLP3.3MOV5,4ACALLDELAYAJMPLOOP3MOVR5,#10DELAY:MOVR6,#200D
5、EL:MOVR7,#229DJNZR7,$DJNZR6,DELDJNZR5,DELAYRETEND4交通灯实验ORG0000HAJMPMAINORG0030HMAIN:MOVSP,#60HMOVDPTR,#0AC03HMOVA,#80HMOVX@DPTR,AMOVDPTR,#0AC00HMOVA,#0F0HMOVX@DPTR,AMOVR5,#20ACALLDELAYLOOP1:MOVA,#5AHMOVX@DPTR,AMOVR5,#100ACALLDELAYMOVR4,#3LOOP2:MOVA,#50HMOVX@DPTR,AMOVR5,#5ACALLDELAYMOVA,#0FAHMOVX@D
6、PTR,AMOVR5,#5ACALLDELAYDJNZR4,LOOP2MOVA,#0A5HMOVX@DPTR,AMOVR5,#100ACALLDELAYMOVR4,#3LOOP3:MOVA,#0A0HMOVX@DPTR,AMOVR5,#5ACALLDELAYMOVA,#0F5HMOVX@DPTR,AMOVR5,#5ACALLDELAYAJMPLOOP1DELAY:MOVR6,#200DEL:MOVR7,#229DJNZR7,$DJNZR6,DELDJNZR5,DELAYRETEND5定时器实验ORG0000HAJMPMAINORG001BHAJMPINT_1ORG0030HMAIN:MOV
7、SP,#60HMOVTMOD,#10HMOVTH1,#4BH//定时器初始化MOVTL1,#0FDHMOVR1,#20SETBEASETBET1SETBTR1MOVDPTR,#TABMOVR2,#0AJMP$INT_1:MOVTH1,#4BHMOVTL1,#0FDHDJNZR1,LP1MOVR1,#20MOVA,R2MOVCA,@A+DPTRMOVP1,AINCR2CJNER2,#8,LP1MOVR2,#0LP1:RET
