液晶屏的显示

Lcd_rs bit p3.5 Lcd_rw bit p3.6 Lcd_e bit p3.7 Lcd_databus equ p0 Lcd_busy bit p0.7 Lcd_databuff equ 30h Lcd_head equ 50h Lcd_last equ 6fh org 0 jmp main org 1bh jmp tclisr org 30h main:mov tmod,#00100000b