Re: [Amforth] amforth-shell.py idea

[Enoch <ix...@ho...>]

Hi Matthias,

Please find attached a patch to Keith's shell script for your
consideration. I took the lazy approach of using Python's eval() option
and it was quite easy:

Two variables:
avr - device name string
py - a truth value

1st method:

#py= avr=="at90can128"
#py? "%00000000 TCCR0 c!" if py else "%00000000 TCCR0B c!"

2nd method:

#py= TCCR0B
#py? "%00000000 TCCR0B c!" if py else "%00000000 TCCR0 c!"

If TCCR0B is a known register name py is True, if not py is False
(taking advantage of Keith's reg name substitutions).

Please comment.

Thank you, Enoch.


On 10/08/2012 01:36 PM, Matthias Trute wrote:
> Hi,
> 
>> On the at90can128, for example, one has to introduce "TCCR0 constant
>> TCCR0B" before uploading lib/hardware/time0.frt
>>
>> How about extending Keith's fantastic shell with conditional upload
>> constructs such as:
>>
>> #ifdev at90can128
>>    %00000000 TCCR0 c! \ stop timer
>> #else
>>    %00000000 TCCR0B c! \ stop timer
>> #endif
> 
> There are a few (~15 IIRC) more devices, that
> suffer the same problem. Your solution does
> not scale enough, unfortuatly.
> 
>> Any better idea?
> 
> Highly appricated!
> 
> I considered something like
> 
> #ifndef TCCR0B
>   #define TCCR0B TCCR0
> #endif
> 
> but who wants to maintain the matching rules? And who
> wants to check _in detail_ if they are really compatible
> with each other for every controller type (~120 by now)?
> I wont do it.
> 
> Matthias
> 
> 
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