[phyrrus9]

You didn't recommend your tutorial master list, namely Creating Your First Assembler?

If there's better guides on the net, I'd be very surprised.

CYFA assumes existing knowledge of assembly language, as do most of my other assembly tutorials. I do have an intro to ARM assembly series, however it's likely not relevant to the OP. "Assembly" is often used to mean "x86 assembly".  Learning ARM would only frustrate the OP as many of the features of ARM that make it simple and powerful do not exist for x86 (Conditional execution, s-bit, 3-operand, register numbers, etc).

I understand your point. I agree with you I would get mad about it. so what kind of manual should I look at ?

You should look up the ISA for the architecture you're going for. If you're doing ARM for instance, you would use:

v7: http://infocenter.arm.com/help/topic/com...l#cortexa5
v7A: http://infocenter.arm.com/help/topic/com...index.html
v8A: http://infocenter.arm.com/help/topic/com...index.html