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| ;X=K-B2/C1+D3+E2*F2
DOSSEG
.MODEL SMALL
;-------------------------------------------;
MY_MUL MACRO X,Y,Z ;MACRO for multiply 3 numbers
mov z,0
mov z+2,0
MOV AX,X
MUL Y
MOV Z,AX
MOV Z+2,DX
MOV AX,X+2
MUL Y
ADD Z+2,AX
mov ax,Z
mov dx,Z+2
ENDM
;-------------------------------------------;
.STACK 100h
.DATA
F dw 0000h
B dw 0000h
C db 00h
D dw 0000h, 0000h
E dw 0000h
;74569024 in 10 = 47113540 in 16
K EQU 0516h
Temp1 db 00 ; B/C | 2 bytes / 1 byte = 1 bytes (1 bytes)
Temp2 dw 0000h, 0000h ; E*F | 2 bytes * 2 byte = 4 bytes
Temp3 dw 0000h, 0000h ; K-Temp1 | 4 bytes - 1 bytes = 4 bytes
Temp4 dw 0000h, 0000h, 0000h,0000h ; Temp3 + D4 | 4 bytes + 4 bytes = 8 bytes
X dw 0000h, 0000h, 0000h, 0000h, 0000h, 0000h ; Temp4 + Temp2 | 8 bytes + 4 bytes = 12 bytes
;-------------------------------------------;
X_Str db 10 dup (0)
TempStr db 10 dup (0)
TempBin dw 0,0
MaxLen dw 0
X_div2 dw 0,0
Y_div2 dw 0
;-------------------------------------------;
MESSG_X DB 13,10,'X= K - B / C + D + E * F K = 74569024','$'
MESSG_F DB 13,10,'F = ','$'
MESSG_B DB 13,10,'B = ','$'
MESSG_C DB 13,10,'C = ','$'
MESSG_D DB 13,10,'D = ','$'
MESSG_E DB 13,10,'E = ','$'
;-------------------------------------------;
MESSG_X_Res DB 13,10, 'X = ','$'
erStr_CZ db 13,10, 'C = 0 --> divide by zero ',13,10,'$'
erStr1 db 13,10, 'Data not input_variable',13,10,'$'
erStr2 db 13,10, 'Incorrectly data ',13,10,'$'
erStr3 db 13,10, 'Data is too long ',13,10,'$'
Mult10 dw 1,0
my_z dw 0,0
;-------------------------------------------;
;MAIN PROGRAM
.CODE
Start:
mov ax,@data
mov ds,ax
call input
call calculation
call output
mov ah,01
int 21h
mov ah,4Ch
int 21h
;-------------------------------------------;
input proc
;Display X= K - B / C + D + E * F
LEA DX,MESSG_X
MOV AH,09
INT 21H
;Display F = (enter the value)
LEA DX,MESSG_F
MOV AH,09
INT 21H
mov di,offset F
mov MaxLen,5
mov cx,MaxLen
call input_variable
;Display B = (enter the value)
LEA DX,MESSG_B
MOV AH,09
INT 21H
mov di,offset B
mov MaxLen,5
mov cx,MaxLen
call input_variable
;Display C = (enter the value)
LEA DX,MESSG_C
MOV AH,09
INT 21H
mov di,offset C
mov MaxLen,3
mov cx,MaxLen
call input_variable
;Display D = (enter the value)
LEA DX,MESSG_D
MOV AH,09
INT 21H
mov di,offset D
mov MaxLen,9
mov cx,MaxLen
call input_variable
;Display E = (enter the value)
LEA DX,MESSG_E
MOV AH,09
INT 21H
mov di,offset E
mov MaxLen,5
mov cx,MaxLen
call input_variable
cmp C,0
jne dali ;if C != 0 go to dali, else - show error
mov ah,09
mov dx, offset erStr_CZ
int 21h
mov ah,4Ch
int 21h
dali:
ret ;continue
input endp
;-------------------------------------------;
calculation proc
xor ax,ax
xor bx,bx
xor cx,cx
xor dx,dx
;D/C
mov ax,B
mov bl,C
div bl
mov Temp1,al
;E*F
mov ax, [E]
mul [F]
mov [Temp2], ax
mov [Temp2 + 2], dx
;K-Temp1
mov dx,K
mov bl,Temp1
sub ax,bx
sbb dx,0
mov Temp3,ax
mov Temp3+2,dx
;Temp4+D
mov ax, [Temp3]
mov dx, [Temp3+2]
mov bx, [D]
add ax, bx
mov [Temp4], ax
mov [Temp4 + 2], dx
;Temp4+Temp2
mov ax, Temp4
mov dx,Temp4+2
add Temp2,ax
mov [X],ax
mov [X+2],dx
ret
calculation endp
;-------------------------------------------;
output proc
mov di,0
mov Y_div2,10
mov cx,X
mov bx,X+2
O_1:
mov X_div2,cx
mov X_div2+2,bx
call my_div2
add dl,30h
mov X_Str[di],dl
inc di
cmp bx,0
ja O_1
cmp cx,10
jae O_1
add cl,30h
mov X_Str[di],cl
mov dx,offset MESSG_X_Res
mov ah,09
int 21h
O_2:
mov dl,X_Str[di]
mov ah,02h
int 21h
dec di
jge O_2
ret
output endp
;-------------------------------------------;
input_variable PROC
mov si,0
In_00: mov ah,01
int 21h
cmp al,0Dh
je In_1
In_0: mov dl,al
call CHECK_BYTE
mov TempStr[si],dl
inc si
loop In_00
In_1: push si
dec si
cmp cx,MaxLen
jne In_2
call Err1
In_2: mov bh,0
mov bl,TempStr[si]
MY_MUL Mult10,bx,my_z
add TempBin,ax
adc TempBin+2,dx
mov bh,0
mov bl,10
MY_MUL Mult10,bx,my_z
mov Mult10,ax
mov Mult10+2,dx
dec si
cmp si,0
jge In_2
mov ax, TempBin
mov dx,TempBin+2
pop si
cmp si,MaxLen
jl In_3
cmp MaxLen,10
jl In_2_1
js In_Err
cmp dx,0FFFFh
ja In_Err
jmp In_3
In_2_1: cmp MaxLen,5
jl In_2_2
cmp dx,00
ja In_Err
cmp ah,0ffh
ja In_Err
jmp In_3
In_2_2: cmp ax,00FFh
jbe In_3
In_Err: LEA DX,erSTR3
MOV AH,09
INT 21H
mov ah,4Ch
int 21h
In_3: mov [di],ax
mov [di+2],dx
mov TempBin,0
mov TempBin+2,0
mov Mult10,1
mov Mult10+2,0
RET
input_variable ENDP
;-------------------------------------------;
Err1 PROC
PUBLIC Err1
LEA DX,erSTR1
MOV AH,09
INT 21H
mov ah,4Ch
int 21h
RET
Err1 ENDP
;-------------------------------------------;
CHECK_BYTE PROC
PUBLIC CHECK_BYTE
sub dl,30h
cmp dl,00
jl ErS
cmp dl,0Ah
jl GO
ErS:
LEA DX,erSTR2
MOV AH,09
INT 21H
mov ah,4Ch
int 21h
GO: RET
CHECK_BYTE ENDP
;-------------------------------------------;
MY_DIV2 proc
sub cx,cx
sub bx,bx
mov dx,X_div2+2
mov ax,X_div2
M2_D1:
cmp dx,Y_div2
jb M2_D3
sub ax,Y_div2
sbb dx,00
add cx,01
adc bx,0
jmp M2_D1
M2_D3:
div Y_div2
add cx,ax
adc bx,00
ret
MY_DIV2 ENDP
;-------------------------------------------;
end Start |
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