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From: "Gerrit van Niekerk" <gerritvn AT gpvno DOT co DOT za>
Organization: GPvNO
To: djgpp AT delorie DOT com
Date: Thu, 25 Oct 2007 01:00:56 +0200
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Subject: Using inline asm
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Reply-To: djgpp AT delorie DOT com

How can I get GCC to move a register value to a C variable? As I 
understand the Info documentation, this is how I should do it:

int CheckProcessor (void)
{
   int iRet;
   asm ("cpuid");
   asm ("movl %eax,%0" : "=g" (iRet));
   return iRet;
}

This gives me an error on the second "asm" line:
(445) Error: error: invalid 'asm': operand number missing after %-letter

I have tried different constraint codes, but they all give the same problem. 
How should I do it?