From:	johne AT parallax DOT co DOT uk (John Eccleston)
Newsgroups:	comp.os.msdos.djgpp
Subject:	[Q] Inline assembler and mov instructions
Date:	Wed, 19 Feb 97 13:58:43 GMT
Organization:	Parallax Solutions Ltd
Message-ID:	<856360718.728600@red.parallax.co.uk>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi All,

I am trying to write some inline assembler to get the address of the
bios fonts, and I was trying to use MOV instructions like so:

    asm("movw %edx, %bh\n\t");

I use edx as in the extended syntax it is used to pass in a value,
but the BIOS call requires that the value be in bh.

However the assembler complains about no instruction matching the
operands given, could someone please explain how I move values
from one register size to another?

Thanks in advance

John


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