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List:       pcc-list
Subject:    Re: pcc arm ++
From:       Havard Eidnes <he () uninett ! no>
Date:       2008-03-19 22:51:58
Message-ID: 20080319.235158.74731145.he () uninett ! no
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Hi,

I tried the 18 Mar bits, and it appears that one of the
instructions for arm are mis-encoded in table.c; gas didn't
appreciate being passed "neg r2,r2".  More arm-knowledgeable
folks tell me that should be "rsb r2,r2,#0" instead.  So:

--- arch/arm/table.c.orig	2008-03-07 03:42:16.000000000 +0100
+++ arch/arm/table.c
@@ -1704,7 +1704,7 @@ struct optab table[] = {
 	SAREG,	TWORD|TPOINT|TSHORT|TUSHORT|TCHAR|TUCHAR,
 	SAREG,	TWORD|TPOINT|TSHORT|TUSHORT|TCHAR|TUCHAR,
 		NAREG|NASL,	RESC1,
-		"	neg A1,AL" COM "negation\n", },
+		"	rsb A1,AL,#0" COM "negation\n", },
 
 { UMINUS,	INBREG,
 	SBREG,	TLONGLONG|TULONGLONG,

Please someone sufficiently knowledgeable double-check the order
of A1 and AL in that specification.

Regards,

- Havard
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