Parallella Community

It is unclear whether these instructions are supposed to be 16-bit or 32-bit. 16-bit would be natural, given their bit patterns, but I'd rather be safe than sorry. Can these have explicit (16) and (32) added?

alexrp,

Are you referring to the following instructions?

GIE
GID
NOP
IDLE
BKPT
RTI
TRAP

If so, then yes they are all 16 bit instructions. Any instruction table entry with all the bits [31:16] greyed out are 16 bit instructions.

Andreas

Yep. And just to be absolutely sure, 32-bit versions of these instructions do not exist at all, even if unused by the toolchain?

I'm asking because I need to handle every possible valid instruction in my simulator.

BTW, what I meant should be done is add a "(16)" suffix to these instructions so it's clear that they're 16-bit as with others in the table.