[fpc-devel] arm embedded cortexM3 unrecognized opcode

Jeppe Johansen jepjoh2 at kom.aau.dk
Wed Jul 14 12:12:29 CEST 2010


Well, this is off topic, but ARM is quite a bit backwards compatible. 
All ARM versions are backwards compatible(if we ignore thumb, which fpc 
doesn't support anyway) :)

Geoffrey Barton skrev:
>
> On 14 Jul 2010, at 10:49, Bernd Mueller wrote:
>
>> Michael Schnell wrote:
>>> On 07/14/2010 11:02 AM, Bernd Mueller wrote:
>>>> ... which could easily be done in gcc btw. ...
>>> I'm quite sure that FPC's ASM can compile hex constants (using "DC" 
>>> ???)
>>
>> that is not the point. You don't wont to bother with (error prone) 
>> hex constants, but want to use the regular assembler mnemonics.
>
> quite right! especially with a processor like the ARM, where it keeps, 
> er.., improving its instruction set between each generation of hardware!
>
> rgds,
> Geoffrey
>
>>
>>
>> Regards, Bernd.
>>
>>
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>
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