各种汇编延时程序大集合

各种汇编延时程序大集合

delaY_120MS: ;120MS

MOV R2,#50

JMP DELAY_MS

delay_60ms: ;60ms

MOV R2,#25

JMP DELAY_MS

delay_30ms: ;30ms

MOV R2,#12

JMP DELAY_MS

DELAY_5MS: ;5MS

MOV R2,#2

;=================================== DELAY_MS:

CALL DELAY2400

DJNZ R2,DELAY_MS

RET

;=================================== DELAY2400: ;10x244+4=2447

/1.024=2390

MOV R0,#244 ;1

DELAY24001:

MUL AB ;4

MUL AB ;4

DJNZ R0,DELAY24001 ;2 RET

DELAY: ;延时子程序(1秒) MOV R0,#0AH

DELAY1: MOV R1,#00H DELAY2: MOV R2,#0B2H DJNZ R2,$

DJNZ R1,DELAY2

DJNZ R0,DELAY1

RET

MOV R2,#10 ;延时1秒LCALL DELAY

MOV R2,#50 ;延时5秒LCALL DELAY DELAY: ;延时子程序PUSH R2

PUSH R1

PUSH R0

MOV TH0,#3CH

MOV TL0,#0B0H

MOV R4, #10

SETB ET0

SETB EA

SETB TR0

SJMP $ ;

CTC0: MOV TH0, #3CH MOV TL0, #0B0H

DJNZ R4, LP

CPL P1.0

MOV R4, #10 LP: RETI

END