分析一下每一个程序要多少个周期,最好每一条语句后面写好计
算过程,谢谢先!
(1)USEC:
MOVLW 0X0B
MOVWF TEST_BIT_DELAY
DELAY_1
DECFSZ TEST_BIT_DELAY,F
GOTO DELAY_1
GOTO $+1
RETURN
(2)
SEC:
MOVLW 0XFE
MOVWF TEST_BIT_DELAY
MOVLW 0X01
MOVWF TEST_BIT_DELAY_1
DELAY_2
DECFSZ TEST_BIT_DELAY,F
GOTO $+2
DECFSZ TEST_BIT_DELAY_1,F
GOTO DELAY_2
GOTO $+1
RETURN