Re: [PATCH] For SH target,DSP index register instruction is case sensitive

[Nick Clifton <nickc at cambridge dot redhat dot com>]

Hi Arati,

> The DSP instruction MOVX.W @R4+R8,X0 gives Assembler error "invalid
> operands for opcode".  On analyzing the code, I found that in
> tc-sh.c, in function parse_at(), r8 and r9 were checked without
> fisrt calling tolower() function as is done in the other parse
> functions.  This can be solved with the patch below.

> Changelog
> 2001-11-29 Arati Dikey <aratid@kpit.com>
> 	* tc-sh.c (parse_at): Removed case-sensitivity of index
>       register R8, R9.

Thanks for submitting this patch.  I have applied it, in a slightly
extended version (see below).

Cheers
        Nick

Index: gas/config/tc-sh.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-sh.c,v
retrieving revision 1.47
diff -p -c -r1.47 tc-sh.c
*** tc-sh.c	2001/11/15 21:28:58	1.47
--- tc-sh.c	2001/11/29 09:38:20
*************** parse_at (src, op)
*** 994,1008 ****
  	}
        if (src[0] == '+')
  	{
  	  src++;
! 	  if ((src[0] == 'r' && src[1] == '8')
! 	      || (src[0] == 'i' && (src[1] == 'x' || src[1] == 's')))
  	    {
  	      src += 2;
  	      op->type = A_PMOD_N;
  	    }
! 	  if ((src[0] == 'r' && src[1] == '9')
! 	      || (src[0] == 'i' && src[1] == 'y'))
  	    {
  	      src += 2;
  	      op->type = A_PMODY_N;
--- 994,1013 ----
  	}
        if (src[0] == '+')
  	{
+ 	  char l0, l1;
+ 
  	  src++;
! 	  l0 = TOLOWER (src[0]);
! 	  l1 = TOLOWER (src[1]);
! 
! 	  if ((l0 == 'r' && l1 == '8')
! 	      || (l0 == 'i' && (l1 == 'x' || l1 == 's')))
  	    {
  	      src += 2;
  	      op->type = A_PMOD_N;
  	    }
! 	  if ((l0 == 'r' && l1 == '9')
! 	      || (l0 == 'i' && l1 == 'y'))
  	    {
  	      src += 2;
  	      op->type = A_PMODY_N;