Patch for case of max operands > 127

[Patrick Macdonald]

Ben Elliston wrote:
> 
>    This patch makes a check for MAX_OPERANDS and sets the type of the
>    syntax string to be either unsigned char (normal case) or unsigned
>    short when appropriate. The patch also makes minor modifications to
>    code that accesses the syntax string to ensure it does not make
>    assumptions about the type.  Included are ChangeLog entries.
> 
> This looks okay to me, if you've tested it on your port where MAX_OPERANDS
> exceeds 127.
> 
> Ben

Tested on a port where MAX_OPERANDS == 140.
Smooth sailing and thanks Jeff.

Patrick