I am new to this list and apologize if this topic has already been covered.

I am trying to design a bundle for an obscure DSP assembly language, and I have reached the point where I have got this sprawling regular expression that can identify every instruction recognized by the processor. It actually works quite well, and it's wonderful to see the syntax coloring kick in.

So my question is about how best to identify assembly language components in terms of themes. Are there any precedents in this regard? For the time being, I am using two main categories:

assembly.opcode assembly.directive

I have also broken these down into the likes of assembly.directive.macro and assembly.opcode.modifier. The latter may be a peculiarity of the language I am using, which has constructs like this:

tst d0 add d1,d2 ifeq

This tells the processor to add data register d1 to d2, but only if the value of d0 tested zero. The "ifeq", then, is what I am referring to as an opcode modifier, for want of a better term.

Anyway, I'm not sure if I am going about this right, or if it all needs to go under keyword or something. Any suggestions?

-Ted