... b' 1101 1111' MOVWF PORTB CALL delay_1ms MOVF hang_don _vi_ gio,0 CALL table MOVWF PORTD MOVLW b'1 1101 111' MOVWF PORTB CALL delay_1ms BTFSC STATUS,Z GOTO nho_hon _10 ... nho_hon _10 MOVLW 0x03 XORWF xx,0 BTFSC STATUS,Z GOTO nho_hon _10 MOVLW 0x04 XORWF xx,0 BTFSC STATUS,Z GOTO nho_hon _10 MOVLW 0x05 XORWF xx,0 BTFSC STATUS,Z GOTO nho_hon _10 ... hang_don _vi_ gio ; hang_don _vi_ gio và hang_phut_gio MOVLW 0xF0 ANDWF display_reg,0 MOVWF hang_chuc_gio SWAPF hang_chuc_gio,1 MOVF hang_don _vi_ gio,0 CALL chuyen_ma MOVWF hang_don _vi_ gio...