西电微机原理上机题源程序（Principle of microcomputer source program）.doc

西电微机原理上机题源程序（Principle of microcomputer source program） The first and second big assignments Thirty-seventh questions program code: STACK SEGMENT STACKSTACK DW, 100H, DUP (...) TOP LABEL WORD STACK ENDS DATA SEGMENT BUFFER LABEL WORD X=17 REPT 100 X= (X+80) mod 43 DW X ENDM BUF DW 100 DUP (?) DATA ENDS CODE SEGMENT ASSUME, CS:CODE, DS:DATA, ES:DATA, SS:STACK START: MOV, AX, DATA MOV, DS, AX MOV, ES, AX MOV, AX, STACK MOV, SS, AX LEA, SP, TOP MOV CX, 100 LEA, SI, BUFFER LEA, DI, BUF L1: MOV, AX, [SI] INC SI INC SI MOV, [DI], AX INC DI INC DI LOOP L1 MOV CX, 100 DEC CX LEA, SI, BUFFER PUSH CX ADD, CX, CX ADD, SI, CX POP CX L2: PUSH CX PUSH SI L3: MOV, AX, [SI] CMP, AX, [SI-2] JAE NOXCHG XCHG, AX, [SI-2] MOV, [SI], AX NOXCHG: SUB SI, 2 LOOP L3 POP SI POP CX LOOP L2 MOV CX, 100 LEA, SI, BUFFER L4: MOV, AX, [SI] CALL DISPAX ADD SI, 2 CALL XIAOYU CALL XUHAO CALL DAYU CALL DISPCR LOOP L4 MOV, AH, 4CH MOV AL, 0 INT 21H DISPAX PROC NEAR PUSH AX PUSH BX PUSH CX PUSH DX PUSH DI MOV BX, 10 MOV CX, 3 L7: XOR, DX, DX DIV BX MOV, [DI], DX INC DI INC DI LOOP L7 MOV CX, 3 L8: DEC DI DEC DI MOV, AL, [DI] ADD, AL, 30H MOV AH, 02 MOV, DL, AL INT 21H LOOP L8 POP DI POP DX POP CX POP BX POP AX RET DISPAX ENDP DISPCR PROC NEAR PUSH AX PUSH DX MOV AH, 2 MOV, DL, 0AH INT 21H MOV AH, 2 MOV, DL, 0DH INT 21H POP DX POP AX RET DISPCR ENDP XIAOYU PROC NEAR PUSH AX PUSH DX MOV AH, 02 MOV, DL, 3CH INT 21H POP DX POP AX RET XIAOYU ENDP XUHAO PROC NEAR PUSH AX PUSH BX PUSH CX PUSH SI MOV CX, 100 MOV, BX, AX LEA, SI, BUF L5: CMP, BX, [SI] JZ L6 ADD SI, 2 LOOP L5 L6: MOV AX, 101 SUB, AX, CX CALL DISPAX POP SI POP CX POP BX POP AX RET XUHAO ENDP DAYU PROC NEAR PUSH AX PUSH DX MOV AH, 02 MOV, DL, 3EH INT 21H POP DX POP AX RET DAYU ENDP CODE ENDS END START Thirty-eighth questions program code: STACK SEGMENT STACKSTACK DW, 100H, DUP (...) TOP LABEL WORD STACK ENDS DATA SEGMENT BUFFER LABEL BYTE X=17 rept 225 x = (x + 97) way 50 db x endm boof db 45 after (?) number 6 on dw (?) total db 54h, 6fh, 74h, 61h,