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I have the following program, which has the formula of: ( b + c * b - a / 4 ) / ( a *
I have the following program, which has the formula of: b cb aab
However, when I run it it gives me different results that it should be what might be the cause, can you help me to provide me updated version, will really appreciate it
The program:
model flat, stdcall
option casemap: none
include masmincludewindowsinc ; For a management by the modes of Window
include masmincludeuserinc ; For using MessageBox
include masmincludekernelinc ; For using ExitProcess
include masmincludemasminc ; For using FloatToStr
includelib masmlibuserlib ; For using MessageBox
includelib masmlibkernellib ; For using ExitProcess
include Extmacros.inc
NUM macro Q M N
MOV AL M ; Copy number B to register AL
CBW ; Extension AL to AX
MOV BL ; Copy constant to register BL
IDIV BL ; Division register AX as variable B on constant quotient in AL
ADD AL N ; Addition register AL and C as CB
SUB AL ; Subtraction from register AL constant as CB
CBW ; Extension AL to AX
MOV Q AX ; Copy value of numerator from registry AX to registry BX
endm
DEN macro R X Y Z
MOV AL X ; Copy number A to register AL
MOV CL Z ; Copy number C to register CL
IMUL CL ; Multiplication register AL and A on registry CL variable C result in AX
MOV CH Y ; Copy number B to register CH
IDIV CH ; Division register AX as result AC on variable B quotient in AL
MOV DL ; Copy constant to register DL
SUB AL DL ; Subtraction from register AL constant as ACB
MOV R AL ; Copy value of denominator from registry AL to registry R
endm
data
msgtitle db "Lab
buffer db dup
format db A dB dC dC BACB d
msgtitle db "WARNING!", ; text variable for title of window
msgmessage db "Value in denominator equal ; text variable for text in window
A DB
B DB
C DB
D dd
E dd
F dd
code
start:
MOV EDI, ; Initialize pointer to array index
CYCLE:
; Calculate numerator
NUM BX BEDI CEDI
; Calculate denominator
DEN AL AEDI BEDI CEDI
; Check if denominator is zero
CMP AL
JZ ZERO
; Calculate the expression
MOV DL AL
MOV AX BX
IDIV DL
; Check if result is even or odd
TEST AL
JNZ ODD
; If result is even, divide by
SAR AL
JMP CONT
ODD:
; If result is odd, multiply by
MOV BH
IMUL BH
CONT:
; Prepare for displaying the message box
CWDE
movsx ESI, AEDI
mov D ESI
movsx ESI, BEDI
mov E ESI
movsx ESI, CEDI
mov F ESI
invoke wsprintf, addr buffer, addr format, D E F eax
invoke MessageBox, addr buffer, addr msgtitle, MBOK
jmp PRCONT
ZERO:
; Display warning message if denominator is zero
invoke MessageBox, addr msgmessage, addr msgtitle MBOK
PRCONT:
INC EDI
CMP EDI, ; Check if all values have been processed
JL CYCLE ; If not, continue with the next value
; Exit the program
invoke ExitProcess,
end start
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