查表法角度正弦值计算程序设计

DATA SEGMENT

MSG1 DB 05H,0B1H,0B2H,’PLEASE INPUT THE ANGLE’,01,0AH,0DH ;欢迎界面字样和图画

INPUTS DB 3H DUP(0) ;用户输入数据的ASCII码形式暂存单元

DIZHI DW 1H DUP(0) ;取正弦表的偏移地址

RESULT DB 00H,00H,’$’ ;结果的小数部分

FINAL DB 00H,00H,00H,00H,0AH,0DH,’$’

CUOWU1 DB 0AH,0DH,’Your input is illegal’,0AH,0DH,’$';输入错误提示

CUOWU2 DB ‘The number you input must in [0~360]‘,0AH,0DH,’$’

OUT1 DB 0AH,0DH,’SIN’,0E0H,’=0.’,'$’

OUT2 DB 0AH,0DH,’SIN’,0E0H,’=-0.’,'$’

TISHI DB 0AH,0DH,’PRESS Q TO EXIT’,0AH,0DH,’$';正弦表

TAB DB 99H,99H,99H,98H ;90,89度正弦值

DB 99H,93H,99H,86H ;88,87度正弦值

DB 99H,75H,99H,61H ;86,85度正弦值

DB 99H,45H,99H,25H ;84,83度正弦值

DB 99H,02H,98H,77H ;82,81度正弦值

DB 98H,48H,98H,16H ;80,79度正弦值

DB 97H,81H,97H,44H ;78,77度正弦值

DB 97H,03H,96H,59H ;76,75度正弦值

DB 96H,13H,95H,63H ;74,73度正弦值

DB 95H,11H,94H,55H ;72,71度正弦值

DB 93H,97H,93H,36H ;70,69度正弦值

DB 92H,72H,92H,05H ;68,67度正弦值

DB 91H,35H,90H,63H ;66,65度正弦值

DB 89H,88H,89H,10H ;64,63度正弦值

DB 88H,29H,87H,46H ;62,61度正弦值

DB 86H,60H,85H,72H ;60,59度正弦值

DB 84H,80H,83H,87H ;58,57度正弦值

DB 82H,90H,81H,92H ;56,55度正弦值

DB 80H,90H,79H,86H ;54,53度正弦值

DB 78H,80H,77H,71H ;52,51度正弦值

DB 76H,60H,75H,47H ;50,49度正弦值

DB 74H,31H,73H,14H ;48,47度正弦值

DB 71H,93H,70H,71H ;46,45度正弦值

DB 69H,46H,68H,20H ;44,43度正弦值

DB 66H,91H,65H,61H ;42,41度正弦值

DB 64H,28H,62H,93H ;40,39度正弦值

DB 61H,57H,60H,18H ;38,37度正弦值

DB 58H,78H,57H,36H ;36,35度正弦值

DB 55H,92H,54H,46H ;34,33度正弦值

DB 52H,99H,51H,50H ;32,31度正弦值

DB 50H,00H,48H,48H ;30,29度正弦值

DB 46H,95H,45H,40H ;28,27度正弦值

DB 43H,84H,42H,26H ;26,25度正弦值

DB 40H,67H,39H,07H ;24,23度正弦值

DB 37H,46H,35H,84H ;22,21度正弦值

DB 34H,20H,32H,56H ;20,19度正弦值

DB 30H,90H,29H,24H ;18,17度正弦值

DB 27H,56H,25H,88H ;16,15度正弦值

DB 24H,19H,22H,50H ;14,13度正弦值

DB 20H,79H,19H,08H ;12,11度正弦值

DB 17H,36H,15H,64H ;10,9度正弦值

DB 13H,92H,12H,19H ;8,7度正弦值

DB 10H,45H,08H,72H ;6,5度正弦值

DB 06H,97H,05H,23H ;4,3度正弦值

DB 03H,49H,01H,75H ;2,1度正弦值

DB 00H,00H ;0度正弦值

DATA ENDS

STACK1 SEGMENT

DB 100H DUP(?)

STACK1 ENDS

CODE SEGMENT

ASSUME CS:CODE,DS:DATA,SS:STACK1

START:

MOV AX,DATA

MOV DS,AX

MOV AX,STACK1

MOV SS,AX

MOV AX,0010H ;设置屏幕的显示方式

INT 10H

ST0: MOV AH,0H ;程序的初始化清零

MOV INPUTS,AH

MOV [INPUTS+1],AH

MOV [INPUTS+2],AH

MOV AX,0H

MOV BX,0H

MOV SI,0H ;设置初始欢迎界面的字符颜色，并输出

ST1: MOV AL,[MSG1+SI]

MOV BL,01H ;字体颜色

MOV AH,0EH

INT 10H

INC SI

CMP SI,1DH

JZ SHURU

JMP ST1

SHURU:

MOV AL,0E0H ;显示“a＝”字样，提示用户输入角度

MOV BL,0dH

MOV AH,0EH

INT 10H

MOV AL,03DH

MOV BL,0dH

MOV AH,0EH

INT 10H

CALL INPUT ;否则开始用户输入过程

MOV AX,DIZHI

CMP AX,05AH ;判断输入值的范围

JBE CHA1

CMP AX,0B4H

JBE CHA2

CMP AX,10EH

JBE CHA3

CMP AX,168H

JBE CHA4

JMP ERRR

CHA1:

MOV BX,5AH

XCHG AX,BX

SUB AX,BX ;0～90度范围情况

MOV CX,2H

MUL CL

MOV BX,AX

MOV AH,[TAB+BX]

MOV AL,[TAB+BX+1]

MOV [RESULT],AH

MOV [RESULT+1],AL

JMP XIANSHI

CHA2: MOV BX,0B4H ;91~180度范围情况

XCHG AX,BX

SUB AX,5AH

MOV CX,2H

MUL CL

MOV BX,AX

MOV AH,[TAB+BX]

MOV AL,[TAB+BX+1]

MOV [RESULT],AH

MOV [RESULT+1],AL

JMP XIANSHI

CHA3: SUB AX,0B4H ;181~270度范围情况

MOV BX,5AH

XCHG AX,BX

SUB AX,BX

MOV CX,2H

MUL CL

MOV BX,AX

MOV AH,[TAB+BX]

MOV AL,[TAB+BX+1]

MOV [RESULT],AH

MOV [RESULT+1],AL

JMP XIANSHI2

CHA4: MOV BX,168H ;270~360度范围情况

XCHG AX,BX

SUB AX,BX

XCHG AX,BX

SUB AX,5AH

MOV CX,2H

MUL CL

MOV BX,AX

MOV AH,[TAB+BX]

MOV AL,[TAB+BX+1]

MOV [RESULT],AH

MOV [RESULT+1],AL

JMP XIANSHI2

ERRR: MOV DX,OFFSET CUOWU1

;输入范围有误或输入内容不为数字的提示处理

CALL ODS

MOV DX,OFFSET CUOWU2

CALL ODS

MOV DX,OFFSET TISHI

CALL ODS

JMP SHURU

XIANSHI:CALL CHANGE

MOV DX,OFFSET OUT1 ;最终结果显示

CALL ODS

MOV DX,OFFSET FINAL

CALL ODS

MOV DX,OFFSET TISHI

CALL ODS

JMP ST0

XIANSHI2:CALL CHANGE

MOV DX,OFFSET OUT2

CALL ODS

MOV DX,OFFSET FINAL

CALL ODS

MOV DX,OFFSET TISHI

CALL ODS

JMP ST0

INPUT PROC NEAR ;输入子程序

MOV SI,0

INPUT1:MOV AH,01H ;用户输入过程

INT 21H

CMP SI,0H

JZ YZX

JMP YZX1

YZX: CMP AL,0DH

JZ ERRR

YZX1: CMP AL,0DH

JZ INPUT2

CMP AL,’q’ ;按q或Q则退出

JZ EXIT

CMP AL,’Q’

JZ EXIT

CMP AL,30H ;初步判断用户输入合法性

JB ERRR

CMP AL,39H

JA ERRR

MOV [INPUTS+SI],AL

INC SI

CMP SI,3

JZ INPUT2

JMP INPUT1

INPUT2:CALL CAL

RET

INPUT ENDP

CAL PROC NEAR ;用户输入ASCII码的计算子程序

MOV AX,0

MOV AL,[INPUTS+2]

CMP AL,0

JZ FANGFA2

MOV AL,INPUTS ;当输入为三位数时的输入数据处理方法

SUB AL,30H

MOV BL,64H

MUL BL

MOV DIZHI,AX

MOV AL,[INPUTS+1]

SUB AL,30H

MOV BL,0AH

MUL BL

ADD DIZHI,AX

MOV AL,[INPUTS+2]

MOV AH,0

SUB AL,30H

ADD DIZHI,AX

JMP CALEND

FANGFA2:MOV AX,0

MOV AL,[INPUTS+1]

CMP AL,0

JZ FANGFA1

MOV AL,INPUTS ;当输入为两位数时的输入数据处理方法

SUB AL,30H

MOV BL,0AH

MUL BL

MOV DIZHI,AX

MOV AL,[INPUTS+1]

SUB AL,30H

ADD DIZHI,AX

JMP CALEND

FANGFA1:

MOV BX,0 ;当输入为一位数时的输入数据处理方法

MOV BL,INPUTS

SUB BL,30H

MOV DIZHI,BX

CALEND:

RET

CAL ENDP

ODS PROC NEAR ;结果显示子程序

MOV AH,09H

INT 21H

RET

ODS ENDP

CHANGE PROC NEAR ；最终结果转化子程序

MOV SI,0

MOV DI,0

CHANGE1:MOV AX,0H

MOV AL,[RESULT+SI]

MOV BL,10H

DIV BL

ADD AH,30H

ADD AL,30H

MOV [FINAL+DI],AL

MOV [FINAL+DI+1],AH

INC SI

ADD DI,2

CMP SI,2

JZ CHANGE2

JMP CHANGE1

CHANGE2:

RET

CHANGE ENDP

EXIT: ；程序退出点

MOV AH,4CH

INT 21H

CODE ENDS

END START