first commit

Lab/Lab3/material/task1/code.LST

@@ -0,0 +1,80 @@
+Turbo Assembler	 Version 5.3	    05-06-23 19:07:51	    Page 1
+code.asm
+
+
+
+      1	0000			     DATA SEGMENT
+      2	0000  00FF		     T DW 0FFH
+      3	0002			     DATA ENDS
+      4
+      5	0000			     CODE SEGMENT
+      6					 ASSUME	CS:CODE,DS:DATA
+      7
+      8	0000			     START:
+      9	0000  B8 0000s			 MOV AX,DATA
+     10	0003  8E D8			 MOV DS,AX
+     11
+     12	0005  BA 0283			 MOV DX, 283H
+     13	0008  B0 B1			 MOV AL, 0B1H
+     14	000A  EE			 OUT DX, AL
+     15
+     16	000B  BA 0281			 MOV DX, 281H
+     17	000E  B0 00			 MOV AL, 00H
+     18	0010  EE			 OUT DX, AL
+     19
+     20	0011  BA 0280			 MOV DX, 280H
+     21	0014  EC			 IN AL,	DX
+     22
+     23	0015  BA 0281			 MOV DX, 281H
+     24	0018			     LP:
+     25	0018  EE			 OUT DX, AL
+     26	0019  E8 0004			 CALL DELAY
+     27	001C  D0 C8			 ROR AL, 1
+     28	001E  EB F8			 JMP LP
+     29
+     30	0020			     DELAY PROC
+     31	0020  53			 PUSH BX
+     32	0021  50			 PUSH AX
+     33	0022  8B 1E 0000r		 MOV BX, T
+     34	0026  A1 0000r			 MOV AX, T
+     35	0029			     DL1:
+     36	0029			     DL2:
+     37	0029  4B			 DEC BX
+     38	002A  75 FD			 JNZ DL1
+     39	002C  48			 DEC AX
+     40	002D  75 FA			 JNZ DL2
+     41	002F  58			 POP AX
+     42	0030  5B			 POP BX
+     43	0031  C3			 RET
+     44	0032			     DELAY ENDP
+     45
+     46	0032			     CODE ENDS
+     47				     END START
+Turbo Assembler	 Version 5.3	    05-06-23 19:07:51	    Page 2
+Symbol Table
+
+
+
+
+Symbol Name			  Type	 Value
+
+??DATE				  Text	 "05-06-23"
+??FILENAME			  Text	 "code	  "
+??TIME				  Text	 "19:07:51"
+??VERSION			  Number 0503
+@CPU				  Text	 0101H
+@CURSEG				  Text	 CODE
+@FILENAME			  Text	 CODE
+@WORDSIZE			  Text	 2
+DELAY				  Near16 CODE:0020
+DL1				  Near16 CODE:0029
+DL2				  Near16 CODE:0029
+LP				  Near16 CODE:0018
+START				  Near16 CODE:0000
+T				  Word	 DATA:0000
+
+Groups & Segments		  Bit Size Align  Combine Class
+
+CODE				  16  0032 Para	  none
+DATA				  16  0002 Para	  none
+

Lab/Lab3/material/task1/code.MAP

@@ -0,0 +1,7 @@
+LINK : warning L4021: no stack segment
+
+ Start  Stop   Length Name                   Class
+ 00000H 00001H 00002H DATA                   
+ 00010H 00041H 00032H CODE                   
+
+Program entry point at 0001:0000

Lab/Lab3/material/task1/code.asm

@@ -0,0 +1,47 @@
+DATA SEGMENT
+    T    DW 0FFH
+DATA ENDS
+
+CODE SEGMENT
+          ASSUME CS:CODE, DS:DATA
+
+    START:
+          MOV    AX, DATA
+          MOV    DS, AX
+
+          MOV    DX, 283H            ; 命令口
+          MOV    AL, 10010000B       ; 1|00(A组0方式)|1(PA输入)|0(PC4-7输出)|0(B组0方式)|0(PB输出)|0(PC0-3输出)
+          OUT    DX, AL
+
+          MOV    DX, 281H            ; B口
+          MOV    AL, 00H             ; LED全置0
+          OUT    DX, AL
+
+          MOV    DX, 280H            ; A口
+          IN     AL, DX              ; 读入到AL
+
+          MOV    DX, 281H            ; B口
+    LP:   
+          OUT    DX, AL              ; 从B口输出AL
+          CALL   DELAY               ; 延时
+          ROR    AL, 1               ; ROR(Rotate Right)把AL向右移1位，移出的位补到左边，实现走马灯
+          JMP    LP                  ; 无限循环
+
+DELAY PROC
+          PUSH   BX
+          PUSH   AX
+          MOV    BX, T
+          MOV    AX, T
+    DL1:  
+    DL2:  
+          DEC    BX
+          JNZ    DL1
+          DEC    AX
+          JNZ    DL2
+          POP    AX
+          POP    BX
+          RET
+DELAY ENDP
+
+CODE ENDS
+END START