What determines a 16bit or 8 bit value

kane · ‎2004-02-10

Posted on February 11, 2004 at 05:10

kane · ‎2004-02-10

Posted on February 10, 2004 at 13:20

More ASM and I've stumbled across another problem...

I'm working with some signed binary which is stored in 16bit local variables e.g.

BYTES

EXTERN test1.b ; 16-bit

What defines this as a 16bit value? Most of the routine does not rely on 16bit values anymore, so can I easily convert to 8 bit and not worry about the high and low bytes?

sjo · ‎2004-02-10

Posted on February 10, 2004 at 16:19

This is just declaring the data as being external, the actual data will be allocated like this:

.test1 DS.W 1 ; declare 16bit data

the dot before the data name declares the value as public.

Have a look at the ST7 Assembler/Linker User Manual for further details.

Regards

sjo

kane · ‎2004-02-10

Posted on February 11, 2004 at 04:56

Thanks, I've been looking for something like that, but so many to download I didn't know which one I needed.

Thanks

jatin · ‎2004-02-10

Posted on February 11, 2004 at 05:10

It is ''ST7 Assembler-Linker User Manual'' downloadable form the same site. I attach it for you.

[ This message was edited by: Jatin on 11-02-2004 09:41 ]

[ This message was edited by: Jatin on 11-02-2004 09:43 ]

________________

Attachments :

1000890988.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HzrM&d=%2Fa%2F0X0000000bTf%2Fgqw.wuHlKPly3sEQL6ue2w37stFrQbTv2fe8hX0PyXA&asPdf=false