AW: [avr-gcc-list] inline assembler, ijmp, X-Register

[Haase Bjoern (PT-BEU/EMT) *]

Actually:

You must use the z register for ijmp. Any other register is illegal.

Yours,

Björn
 

-----Ursprüngliche Nachricht-----
Von: address@hidden [mailto:address@hidden Im Auftrag von Torsten Mohr
Gesendet: Freitag, 1. Juli 2005 19:53
An: address@hidden
Betreff: Re: [avr-gcc-list] inline assembler, ijmp, X-Register

Hi,

> Just another guess:  What happens if you do something like
>
>    uint16_t fptr2 = fptr/2;
>    asm("ijmp":: "x" fptr2);

yes, that works.  Great, thanks.

It seems it was related to the size of the argument.  It has to be 16 bit.


Best regards,
Torsten.


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