Hi,


----- Mensaje Original -----

Remitente: "Arkady V.Belousov" [EMAIL PROTECTED]

Destinatario: [email protected]

Fecha: Mi�rcoles, Enero 12, 2005 2:12pm

Asunto: Re: [Freedos-devel] Questions on EMM386 (part2 and last)



>Hi!

>4-���-2005 01:00 [EMAIL PROTECTED] (Aitor Santamar�a Merino) 

>wrote to

>[email protected]:

>ASM> (1) This one is easy:

>ASM> .486p

>ASM> Does this mean to use 486-specific instructions (that is, not to

>ASM> complain if one comes across 486-specific instructions)?

>    This one just _enables_ usage of protected mode ("p" suffix)

>instructions of 486 (and all below) CPUs.

>ASM> What happens in that case if I have a pure 386?

>    Nothing wrong, unless you use in your source some 486-specific

>instruction and try to execute it on 386.

>    Note: cpu-type directives doesn't change source, they just 

>_enable_usage of cpu-specific instructions in your source. For 

>example, without .386

>I can't use 32-bit instructions in my source.



Precisely. I just asked because I was afraid that some 486 specific opcode or 
opcode/operand combination was used. (I don't know much about the interface 
changes of 386+ processors).



Aitor


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