Is it only for unsigned value??

[Farabi]

Im using cmp and ja mnemonic where the source is a negative value. But why it doesnot jump??

cmp hmnpos.x,-10 ; when the hmnpos.x value is -10 or less it doesnot jump
jnz no_change2 ;
push 320
pop hmnpos.x
push 1
pop sign
jmp quit_selection
no_change2:

[BlackVortex]

I think you should use "jg", which is for signed numbers.

[Farabi]

I think you should use "jg", which is for signed numbers.

Thanks its work.

[jj2007]

Im using cmp and ja mnemonic where the source is a negative value. But why it doesnot jump??

cmp hmnpos.x,-10 ; when the hmnpos.x value is -10 or less it doesnot jump
jnz no_change2 ;

You are testing for zero, which should work for signed and unsigned values. I suggest you add

Code Select Expand

mov eax, hmnpos.x
cmp hmnpos.x,-10

and see in Olly what the values are.

[ToutEnMasm]

Hello,
masm do that without problem,let it do it.

1) hmnpos.x must be a sdword ,see the structure hmnpos
2) code it with the masm macro

.if hmnpos.x == -10
         .
         .
.else
         .
         .
.endif

If you want disassemble the code to see how it's coded.