[PATCH][GAS][MSP430] Improve NOP warnings/insertion behaviour around interrupt state changes

[Nick Clifton]

Hi Jozef,

> If the patch is acceptable, I would appreciate if someone would apply it for
> me, as I don't have write access.

Approved and applied.

Note - there was one bug in the patch:

> diff --git a/gas/config/tc-msp430.c b/gas/config/tc-msp430.c
[...]
> @@ -2654,37 +2733,76 @@ msp430_operands (struct msp430_opcode_s * opcode, char * line)
[...]
>  
> -		  if (gen_interrupt_nops)
> -		    /* Emit a NOP between interrupt enable/disable.
> -		       See 1.3.4.1 of the MSP430x5xx User Guide.  */
> -		    doit = TRUE;
> -		  break;
> -
>  		case NOP_CHECK_CPU12:

This deleted the "break" statement at the end of NOP_CHECK_INTERRUPT case.
I assumed that your intent was not to fall through into the NOP_CHECK_CPU12
case, so I restored the break statement.

Cheers
  Nick