[fpc-devel] arm embedded cortexM3 unrecognized opcode

[Geoffrey Barton]

On 12 Jul 2010, at 19:06, Jeppe Johansen wrote:

> Add the missing instructions to the bottom of armins.dat, run  
> mkarmins in the same directory.


It now recognises the mnemonic 'cpsie' but not the following 'i'.

The 'msr' instruction should also allow the interrupts to be enabled/ 
disabled as

msr primask,r0

but msr gives an unknown identifier error for 'primask' and all the  
other 'special' register names ('apsr' etc.) Perhaps they have been  
given different names, but I cannot find them listed anywhere in the  
FPC source.

> (and then submit patch) :-)

well, once I have some code which works on the chip, I will ask  
someone where to put it :-)

Geoffrey

>
> Geoffrey Barton skrev:
>> I wrote a procedure to turn on interrupts:-
>>
>> procedure intenable;nostackframe;
>> begin
>>  asm
>>     cpsie i
>>  end;
>> end;
>>
>> The compilation fails with 'Error: Unrecognized opcode cpsie'
>>
>> The compiler also does not recognise 'cpsid' and also 'primask' as  
>> in 'mrs r0,primask'
>>
>> any ideas/workarounds?
>>
>> Geoffrey
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>
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