gnupic: PIC VM and PIC-on-PIC emulation
Subject:
Re: PIC VM and PIC-on-PIC emulation
From:
"George M. Gallant" ####@####.####
Date:
24 Dec 2004 15:36:12 +0000
Message-Id: <41CC3752.20009@comcast.net>
David,
I am using sdcc to test the math libraries such as sin, cos,tan & log.
Looks good. I have rewritten
the floating point math in assembler so my results may be different.
There are still some holes but
Vangelis and crew are quickly filling them up.
George
David McNab wrote:
> George M. Gallant wrote:
>
>> David,
>>
>> Try the pic18f252. It is pin compatible with the 16f876. 40MHz, 32K
>> byte instruction, 1536 byte ram, 31 stack depth. Like
>> a breathe of fresh air after the confines of the 876. I even run a
>> multi-tasking scheduler. Supported by gputils and SDCC.
>
>
> Thanks for the suggestion.
> I've actually got my eye on the 18f252.
>
> Can you give me an idea on how /well/ it's supported by sdcc?
> The only thing I've done with sdcc on the 876 so far is run a LED
> counter prog, and I've not gone any further because I've had the feeling
> that 876 support is not 100%. At the moment, using CCS (pseudo-)C
> compiler.
>
> Are you saying that sdcc supports the 18f chips better than it does the
> 16f chips? Is it mature enough for real 18f development? Is its
> optimiser up to scratch? Is it trustworthy with respect to generating
> bank-switching code, etc?
>
