music.asm

来自「上课老师给的8086仿真器」· 汇编 代码 · 共 57 行

org  0000h
 Sjmp MAIN
org 000bh
  mov th0,r1
mov tl0,r0
cpl p1.0
RETI

MAIN:MOV TMOD,#01H
MOV IE,#82H
MOV DPTR,#TAB
LOOP: CLR A
MOVC A,@A+DPTR
MOV R1,A
INC DPTR
CLR A
MOVC A,@A+DPTR
MOV R0,A
ORL A,R1
JZ NEXT0
MOV A,R0
ANL A,R1
CJNE A,#0FFH,NEXT
SJMP MAIN
NEXT : MOV TH0,R1
MOV TL0,R0
SETB TR0
SJMP NEXT1
NEXT0:CLR TR0

NEXT1: CLR A
INC DPTR
MOVC A,@A+DPTR
MOV R2,A
LOOP1: ACALL D200C
DJNZ R2,LOOP1
INC DPTR
AJMP LOOP
D200C:MOV R3,#81H
D200B:MOV A,#0FFH
D200A:DEC A
JNZ D200A

DEC R3
CJNE R3,#00H,D200B
RET
TAB: DB 0FEH,25H,04H,0FEH,25H,02H
     DB 0FEH,25H,02H,0FDH,80H,04H
     DB 0FEH,84H,02H,0FEH,84H,02H
     DB 0FEH,84H,04H,0FEH,25H,04H
     DB 0FEH,25H,02H,0FEH,84H,02H
     DB 0FEH,0C0H,04H,0FEH,84H,02H
     DB 0FEH,98H,02H,0FEH,84H,02H
     DB 0FEH,57H,08H,00H,00H,04H
     DB 0FFH,0FFH
     END