RE: [Sdcc-user] mcs51reg.h - A single register definition file for multiple microcontrollers - Version 1.0.1

[Sandeep D. <sa...@dd...>]

Iam not sure what the ALU does, does it do 16 bit arithmetic ?
if this is the case then it would be almost trivial to add these
to SDCC, all need to do is create a _mulint _divint routine using the
ALU and link them in.

Sandeep

-----Original Message-----
From: sdc...@li...
[mailto:sdc...@li...]On Behalf Of Heinz
Liebha
Sent: Saturday, November 04, 2000 10:53 AM
To: Michael Schmitt
Cc: sdc...@li...
Subject: AW: [Sdcc-user] mcs51reg.h - A single register definition file
for multiple microcontrollers - Version 1.0.1


Hi Michael,

sorry, I've forgotten you to add in my last mail... Thanks for your work...

Just another little question: It looks like as if you are using
the SAB'515 CPU... Did you ever think about using the (for a '51 core)
powerful built in ALU? Can this be fully implemented in SDCC (easily)
or is it easier using dedicated functions for it?
I can imagine a set of func's like arith_mul(), arith_div(), .... to
use the ALU -> must be MUCH quicker than a prog-around in asm ......
BTW: Almosu the same with the 8 different data pointers - but this looks
not so easy 'cause it MUST be embedded in the depths of SDCC... :-(

brgds,
Heinz

> -----Ursprüngliche Nachricht-----
> Von: sdc...@li...
> [mailto:sdc...@li...]Im Auftrag von Michael
> Schmitt
> Gesendet: Samstag, 04. November 2000 17:32
> An: Heinz Liebhart; bel...@ks...
> Cc: sdc...@li...
> Betreff: Re: [Sdcc-user] mcs51reg.h - A single register definition file
> for multiple microcontrollers - Version 1.0.1
>
>
> Béla and Heinz,
>
> i am going to merge this and sent the merged files to you both. if there
> will be no negative messages, i will update cvs.
>
> Michael
>
> ----- Original Message -----
> From: "Heinz Liebhart" <e88...@st...>
> To: <bel...@ks...>
> Cc: <sdc...@li...>
> Sent: Saturday, November 04, 2000 2:51 PM
> Subject: AW: [Sdcc-user] mcs51reg.h - A single register
> definition file for
> multiple microcontrollers - Version 1.0.1
>
>
> > Hi Bela, Michael and all others,
> >
> > imho a beautiful way to simply change the CPU platform.....
> >
> > I've putted all the informations I have about the Siemens SAB80C517/537
> and
> > the SAB80C517A/537A together - would you be so kind to add it to the
> > definition file in a way makeing the file looking homogenous.....
> > Maybe I'm going to complete the def's by many #define's for all bits
> beeing
> > NOT bit addressable.... (but only for the '517, cause I'm using it...)
> >
> > brgds,
> > Heinz
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: sdc...@li...
> > > [mailto:sdc...@li...]Im Auftrag von
> Bela Torok
> > > Gesendet: Freitag, 03. November 2000 15:57
> > > An: 'Michael Schmitt'
> > > Cc: sdc...@li...
> > > Betreff: [Sdcc-user] mcs51reg.h - A single register
> definition file for
> > > multiple microcontrollers - Version 1.0.1
> > >
> > >
> > > Michael
> > >
> > > Thanks for your help.
> > >
> > > > see attachment for the modified file. i have added only a
> > > > smal amount of
> > > > definition that were missing.
> > >
> > > Thanks...
> > >
> > > >
> > > > > I have only a simple SAB8515A datasheet and I have not found
> > > > any information
> > > > > on it.
> > > >
> > > > do you want the full user guide as pdf ?
> > >
> > > No thanks, I'm not planning to use the SAB80515A.
> > >
> > > >
> > > > Béla, i am still thinking about the definitions of the
> > > > bitfields inside
> > > > an sfr. i would prefer to name these with the sfr-name in
> front of it
> > > > like ADCON0_BSY instead of BSY to make clear this is a bit
> > > > inside an sfr
> > > > and not an sbit definition. also this could prevent double
> > > > definitions.
> > > > BSY could be there twice ....
> > > > The source would look a bit more clear (at least to me)
> > > > f.e.
> > > >     PCON |= PCON_IDLE; // IDLE-Bit in register PCON starts IDLE Mode
> > > >     PCON |= PCON_IDLS; // These two commands need to be executed
> > > > directly one after another
> > > > in this case it would be clear that in sfr PCON the bit IDLE
> > > > is set and
> > > > that it is part of this sfr .
> > > >
> > > > any comments ?
> > > >
> > >
> > > I have left both kind of definitions in the header file.
> > > If somebody tries to write a program using the datasheet of the
> > > microcontroller, it is better to use the original MNEMONICS.
> > >
> > > Included is the revised mcs51reg.h file.
> > > To make the code more readable i have introduced the definition
> > > IE_SAB80515_FAMILY.
> > >
> > > Regards: Béla
> > >
> > >
> >
>
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