嵌入式C语言程序设计——使用MCS-51

				; .\ex5-4.SRC generated from: ex5-4.C
				; COMPILER INVOKED BY:
				;        C:\KEIL\C51\BIN\C51.EXE ex5-4.C BROWSE DEBUG OBJECTEXTEND SRC(.\ex5-4.SRC)
				
				$NOMOD51
				
				NAME	EX5_4
				
				P0	DATA	080H
				P1	DATA	090H
				P2	DATA	0A0H
				P3	DATA	0B0H
				AC	BIT	0D0H.6
				T0	BIT	0B0H.4
				T1	BIT	0B0H.5
				EA	BIT	0A8H.7
				IE	DATA	0A8H
				P0_0	BIT	080H.0
				P1_0	BIT	090H.0
				P0_1	BIT	080H.1
				FL	BIT	0D0H.1
				P2_0	BIT	0A0H.0
				P1_1	BIT	090H.1
				P0_2	BIT	080H.2
				P3_0	BIT	0B0H.0
				P2_1	BIT	0A0H.1
				P1_2	BIT	090H.2
				P0_3	BIT	080H.3
				P3_1	BIT	0B0H.1
				P2_2	BIT	0A0H.2
				P1_3	BIT	090H.3
				P0_4	BIT	080H.4
				P3_2	BIT	0B0H.2
				P2_3	BIT	0A0H.3
				P1_4	BIT	090H.4
				P0_5	BIT	080H.5
				RD	BIT	0B0H.7
				P3_3	BIT	0B0H.3
				P2_4	BIT	0A0H.4
				P1_5	BIT	090H.5
				P0_6	BIT	080H.6
				P3_4	BIT	0B0H.4
				P2_5	BIT	0A0H.5
				P1_6	BIT	090H.6
				P0_7	BIT	080H.7
				P3_5	BIT	0B0H.5
				ES	BIT	0A8H.4
				P2_6	BIT	0A0H.6
				P1_7	BIT	090H.7
				P3_6	BIT	0B0H.6
				P2_7	BIT	0A0H.7
				IP	DATA	0B8H
				P3_7	BIT	0B0H.7
				RI	BIT	098H.0
				CY	BIT	0D0H.7
				INT0	BIT	0B0H.2
				INT1	BIT	0B0H.3
				TI	BIT	098H.1
				PS	BIT	0B8H.4
				SP	DATA	081H
				OV	BIT	0D0H.2
				WR	BIT	0B0H.6
				SBUF	DATA	099H
				PCON	DATA	087H
				SCON	DATA	098H
				TMOD	DATA	089H
				TCON	DATA	088H
				IE0	BIT	088H.1
				IE1	BIT	088H.3
				B	DATA	0F0H
				ACC	DATA	0E0H
				ET0	BIT	0A8H.1
				ET1	BIT	0A8H.3
				TF0	BIT	088H.5
				ET2	BIT	0A8H.5
				TF1	BIT	088H.7
				RB8	BIT	098H.2
				TH0	DATA	08CH
				EX0	BIT	0A8H.0
				IT0	BIT	088H.0
				TH1	DATA	08DH
				EX1	BIT	0A8H.2
				TB8	BIT	098H.3
				IT1	BIT	088H.2
				P	BIT	0D0H.0
				SM0	BIT	098H.7
				TL0	DATA	08AH
				SM1	BIT	098H.6
				TL1	DATA	08BH
				SM2	BIT	098H.5
				PT0	BIT	0B8H.1
				RS0	BIT	0D0H.3
				PT1	BIT	0B8H.3
				RS1	BIT	0D0H.4
				PT2	BIT	0B8H.5
				TR0	BIT	088H.4
				TR1	BIT	088H.6
				PX0	BIT	0B8H.0
				PX1	BIT	0B8H.2
				DPH	DATA	083H
				DPL	DATA	082H
				REN	BIT	098H.4
				RXD	BIT	0B0H.0
				TXD	BIT	0B0H.1
				F0	BIT	0D0H.5
				PSW	DATA	0D0H
				?PR?delay?EX5_4      SEGMENT CODE 
				?PR?timer0_isr?EX5_4 SEGMENT CODE 
				?PR?timer0_initialize?EX5_4              SEGMENT CODE 
				?PR?main?EX5_4       SEGMENT CODE 
				?C_INITSEG           SEGMENT CODE 
				?DT?EX5_4            SEGMENT DATA 
					EXTRN	CODE (?C_STARTUP)
					PUBLIC	i
					PUBLIC	timer0_tick
					PUBLIC	seven_seg
					PUBLIC	main
				
					RSEG  ?DT?EX5_4
				      seven_seg:   DS   20
				    timer0_tick:   DS   1
				              i:   DS   1
				
					RSEG  ?C_INITSEG
					DB	014H
					DB	seven_seg
					DW	000C0H
					DW	000F9H
					DW	000A4H
					DW	000B0H
					DW	00099H
					DW	00092H
					DW	00082H
					DW	000F8H
					DW	00080H
					DW	00090H
				
					DB	001H
					DB	i
					DB	000H
				
				; /* 	莱ノ絛ㄒ 5-4 
				; 	夹肈:		絛ㄒ  5-4
				;