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RE: Trouble with inline asm on m68k


I vaguely remember having to escape "%" with "%%" in some cases.
Try %%d1 for the first instance of %d1.

>From: "William A. Gatliff" <bgat@saturn.billgatliff.com>
>To: crossgcc@sources.redhat.com
>Subject: Trouble with inline asm on m68k
>Message-ID: <20020105213757.A11651@saturn.billgatliff.com>
>Reply-To: bgat@billgatliff.com
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>Guys:


>Maybe it's just too late in the evening, maybe I'm just not reading
>the info pages closely enough...

>I'm trying to do this on a CPU32, m68k-elf-gcc (2.95.3):

>***
>int len;
>...
>__asm__ __volatile__ ("move.l %0, %d1" : : "r" (len) : "%d1");
>
>[bgat@mars] m68k-elf-gcc -c -mcpu32 test.c
>test.c:41: invalid 'asm': operand number out of range
>***
>
>Seems like gcc is getting tripped up on the %d1 in the opcode,
>thinking it is an operand number instead of a register name.  Turning
>the "%d1" into just "d1" makes gcc happy, but causes an unresolved
>reference to "d1" at link time.  The assembler doesn't know it is a
>register (which makes sense).
>
>I'm binding to an asm API, so I have to call out the register name.
>
>I can't be the first person to have this problem.  What's the solution?

>Or better yet, what section of the infopages do I need to re-read?
>

>Thanks!


>b.g.
>-- 
>Bill Gatliff
>bgat@billgatliff.com

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Tim Miller
Glenayre Electronics

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