汇编语言音乐播放器.docx

ORG0000H AJMPLOOOOP/绝对转移指令。ORG000BHAJMPTIM0ORG001BHRETI/中断返回指令ORG0023HLOOOOP:MOV A,#01HLOOOP:MOVP1,#3FH MOVP2,ARLA/A左移MOVR2,#0FFHDELAY0:MOVR3,#0FFHDJNZR3,$/$在某些51的汇编语言里表示本条指令的地址DJNZR3,$意思是 R3减一，不为零跳转到本条指令(为零执行下一条指令) MOVR4,#0FFHDJNZR4,$DJNZR2,DELAY0JNBP3.3,START/直接寻址位不为1转LJMPLOOOP/长调用指令START:MOVP1,#06HMOVR5,#00H/初始化MOVTMOD,#00010001BMOVIE,#10101010BMOVDPTR,#TAB2/装第一首歌MOV30H,DPL/DPTR低8位送30H暂存MOV31H,DPH/DPTR高8位送31H暂存START1:INCR4寄存器内容加1/产生8位随机数MOVA,#01010101B MOVB,R4MULABMOVP2,AMOVDPL,30HMOVDPH,31HMOVA,#00HMOVCA,A+DPTR/查表MOVR0,A/音符数据送R0暂存MOVA,#00HINCDPTR /DPTR的内容加1MOVCA,A+DPTR/查表MOVR1,A/节拍数据送R1暂存INCDPTRMOV30H,DPLMOV31H,DPHCJNEA,#01H,ELECT/立即数与A相比不相等则转移/一首歌没结束转ELECTINCR5LJMPKEYWORK/结束歌曲计数器加1ELECT:JZSTART/所有歌曲结束转START循环（累加器内容为0转移）MOVA,R0JNZSING（累加器内容不为0转移）CLRTR0/累加器内容清0SETBP3.7/置位直接位LOOP1:ACALLDELAY/绝对调用（调用延时子程序） DJNZR1,LOOP1 SJMPSTART1/相对转移SING:MOVDPTR,#TAB1/音符表首地址送DPTR DECR0/R0内容减1（计算音符）MOVA,R0MOVB,#02HMULAB/A乘以B MOVR0,AMOVCA,A+DPTRMOV21H,AINCDPTR/数据之指针加1MOVA,R0MOVCA,A+DPTRMOV20H,AMOVTL0,20HMOVTH0,21HSETBTR0开T0定时器LOOP2:ACALLDELAYDJNZR1,LOOP2AJMPSTART1TIM0:MOVTL0,20HMOVTH0,21HCPLP3.7RETI中断返回DELAY:MOVR2,#70DELAY1:MOVR3,#252 DJNZR3,$ JNBP3.3,AGAIN重复正播放的曲子 JNBP3.4,FORM/上一曲开关按下转FORMJNBP3.5,NEXT/下一曲开关按下转NEXT DJNZR2,DELAY1RETAGAIN:JNBP3.3,$等待键释放LJMPKEYWORKFORM:CLREA关中断JNBP3.4,$等待键释放CJNER5,#00H,ZERO不是第一首歌曲转ZER0MOVR5,#04H/是第一首将最后一首歌曲装入歌曲计数器SJMPKEYWORK ZERO:DECR5歌曲向上进一首SJMPKEYWORKNEXT:CLREAJNBP3.5,$ CJNER5,#04H,LASTMOVR5,#00HLJMPKEYWORKLAST:INCR5歌曲下翻一首LJMPKEYWORKKEYWORK:MOVDPTR,#TAB/将歌曲排列表装入DPTR MOVA,R5/将R5的内容送A RLA/A左移 SETBEA/开中断 JMPA+DPTR/根据A的内容转向不同歌曲 TAB:AJMPMUSIC2AJMPMUSIC3AJMPMUSIC4AJMPMUSIC5MUSIC2:MOVDPTR,#TAB2/第二首歌曲送DPTRMOVP1,#06HGONG:MOV30H,DPL MOV31H,DPH AJMPSTART1MUSIC3:MOVDPTR,#TAB3MOVP1,#5BH SJMPGONGMUSIC4:MOVDPTR,#TAB4MOVP1,#4FHSJMPGONGMUSIC5:MOVDPTR,#TAB5MOVP1,#66HSJMPGONG*（音符表）*;TAB1:DW64021,64185,64331,64400,64524,64632,64732 DW64777,64860,64934,64968,65030,65085,65134DW65157,65198,65235,65252,65283,65310,65335;*(因为爱情)*;TAB2:DW0910H,0A08H,0C08H,0C08H,0A18H,0010H,0C08H,0A08HDW0908H,0C08H,0C20H,0D08H,0E08H,0F08H,0F08H,0F08HDW0E08H,0F18H,0E04H,0E08H,0E08H,0C08H,0A08H,0A20HDW0C08H,0A08H,0C08H,0D08H,0D18H,0C08H,0D08H,0C08HDW0C08H,0808H,0820H,0608H,0808H,0A08H,0908H,0608HDW0A08H,0908H,0608H,0A08H,0908H,0608H,0D10H,0C20HDW0001H;*(兰花草)*;TAB3:DW0608H,0A08H,0A08H,0A08H,0A18H,0908H,0808H,0908HDW0808H,0708H,0620H,0D08H,0D08H,0D08H,0D08H,0D18HDW0C08H,0A08H,0C08H,0C08H,0B08H,0A20H,0A08H,0D08HDW0D08H,0C08H,0A18H,0908H,0808H,0908H,0808H,0708HDW0610H,0310H,0308H,0808H,0808H,0708H,0618H,0A08HDW0908H,0808H,0708H,0508H,0620H,0908H,0808H,0708HDW0508H,0640H,0001H;*(我只在乎你)*;TAB4:DW0A08H,0A08H,0A08H,0908H,0A10H,0C08H,0C08H,0C20HDW0D08H,0D08H,0D08H,0C08H,0A10H,0D08H,0C08H,0C20HDW0F08H,0F08H,0F08H,0D08H,1010H,0F08H,0C08H,0C20HDW0D08H,0D08H,0D08H,0F08H,0D08H,0C10H,0A10H,0920HDW0A08H,0A08H,0A08H,0908H,0A10H,0C08H,0C08H,0C20H DW0D08H,0D08H,0D08H,0C08H,0A10H,0C08H,0C08H,0C20H DW0F08H,0F10H,0D08H,1010H,1010H,0F08H,0C08H,0C20HDW1010H,0C10H,0F10H,1010H,1110H,1010H,0F10H,0E10HDW0F10H,0E10H,0D10H,0C10H,0D40H,0020H,0004H,0F08HDW1008H,1110H,1010H,0F10H,0E10H,0F10H,0E10H,0A10HDW0C10H,0D20H,0008H,0D08H,0C08H,0D10H,0F10H,0F20HDW0010H,0F20H,1010H,1110H,0F10H,1010H,0F10H,0D08HDW0D08H,1210H,1110H,1010H,0F08H,1208H,1210H,1110HDW1010H,0F10H,1030H,1110H,1008H,0F08H,0F20H,0F10HDW1010H,1120H,0F10H,1410H,1310H,1108H,1008H,0F10HDW0D30H,0010H,0C10H,0F10H,1110H,1310H,1408H,1108HDW1008H,0F10H,0D10H,0F10H,0F08H,1010HF08H,0F40HDW0001H *(童年)*;TAB5:DW0A08H,0C08H,0C10H,0C08H,0A08H,0D08H,0D08H,0E08H DW0D08H,0D08H,0D08H,0D08H,0C08H,0F10H,0F08H,0F08HDW0F08H,0D08H,0F08H,0D08H,0C40H,0A08H,0C08H,0C10HDW0C08H,0A08H,0D08H,0D08H,0E08H,0D08H,0D08H,0D08HDW0D08H,0C08H,0F10H,0F08H,0F08H,0F08H,0D08H,0D08HDW0F08H,1040H,1308H,1308H,1310H,1310H,1108H,1008HDW0F08H,0F10H,0D08H,0D08H,0F08H,0D08H,0F08H,1