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Message-ID: <1a5a6bfe0803111031t39e14735v8637e7f048c6cd70@mail.gmail.com>
Date: Tue, 11 Mar 2008 13:31:23 -0400
From: "Daniel Verkamp" <daniel AT drv DOT nu>
Sender: daniel DOT verkamp AT gmail DOT com
To: djgpp AT delorie DOT com, kie AT gmx DOT de
Subject: Re: relocation truncated to fit: 16 against
In-Reply-To: <1ea8424e-da3e-4ecf-a0c6-4d836c62563e@d62g2000hsf.googlegroups.com>
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References: <1ea8424e-da3e-4ecf-a0c6-4d836c62563e AT d62g2000hsf DOT googlegroups DOT com>
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
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On Tue, Mar 11, 2008 at 1:11 PM, kie <kie AT gmx DOT de> wrote:
> Hi I'm triying to write my own Keyboard ISR, but I am having some
>  Trouble
>  with my ASM code to gat the scan_code from the PIC.

You should probably read up on GNU assembler first; Google should find
plenty of hits. Some good ones:
- http://www.delorie.com/djgpp/v2faq/faq17_1.html
- http://www.ibm.com/developerworks/library/l-ia.html

For example, 'movw $_raw_scan_code, %ax' is presumably meant to move
the value of ax into a 'raw_scan_code' variable, but remember that
AT&T syntax is generally 'source, destination', and the $ is not
needed here (you are getting the address of the variable there, then
trying to move it into a 16-bit register, which is the cause of the
error message), and you need to double the % signs when writing actual
register names in inline assembly, so it should presumably be more
like 'movw %%ax, _raw_scan_code'.  You could also use the input list
to avoid needing to mangle the name by hand.

-- Daniel Verkamp