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Title: How to divide signed numbers?
Post by: kejt on January 27, 2013, 06:24:11 AM

Hi,
I have some problems with dividing signed number.


include /masm32/include/masm32rt.inc

.data?
stop		db ?
.data

.code
start:
			xor		edx, edx
			mov		eax, -10
			mov		ebx, 2
			idiv	ebx
			
			print	str$(eax)
			
			push	1
			push	offset stop
			call	StdIn
			
			push	0
			call	ExitProcess
			
end start

in the result i get 2147483643. It should be -5. What I'm doing wrong?

Title: Re: How to divide signed numbers?
Post by: jj2007 on January 27, 2013, 06:40:15 AM

; xor edx, edx
mov eax, -10
cdq

->\masm32\help\Opcodes.chm ;)

Title: Re: How to divide signed numbers?
Post by: kejt on January 27, 2013, 07:02:38 AM

Now it works. Thanks.

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