🚀 go-pugleaf

Environment: gcc 2.2.2 cross compiling to a 68000 on
a Sparcstation (SunOS 4.1.1).

Can I use the extended asm() operand constraints outside of
a function in GCC? I get an error for the following
line of code:

	asm(" movew  #%0,sp@-" : : "n" (0));

x.c:1: parse error before `:'

When I surround the statement with a function, it works e.g

dummy()
{
	asm(" movew  #%0,sp@-" : : "n" (0));
}

Why do I want to do this? I want to embed some #define'd constants
into an assembler macro e.g

#define	BUSERR		0
#define	ADDRERR		1
#define	ILLG_INSTR	2
#define	UNKNOWN_INTR	3
#define	CHK_ERR		4
#define	ZERO_DIV	5
#define	TRAPV		6
#define	PRIV_ERR	7
#define	TRACE		8
#define	FORMAT		9
#define	BREAKPOINT	10
#define	SPURINT		11
#define	NMI		12

#define	EXCEPT_HAND(entry, code) \
	asm(" .globl _" #entry); \
	asm("_" #entry ":"); \
	asm(" movew  %0,sp@-" : : "n" (code)); \
	asm(" bra hand_except");

	EXCEPT_HAND(buserror, BUSERR);
	EXCEPT_HAND(addrerror, ADDRERR);

etc...

One workaround is to place all the asm()'s in a dummy function,
but this seems an unnecessary and contrived action.

I see in cp-parse.y that it does not support the asm operands when
asm is used outside of a function. Is there any reason why not?
It would be useful to use the operands to pick up enums etc.

Thanks for any answers.

Andrew McRae			inet:	andrew@megadata.mega.oz.au
Megadata Pty Ltd,		uucp:	..!uunet!megadata.mega.oz.au!andrew
North Ryde  2113		Phone:	+61 2 805 0899
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