Re: [openrisc] OR16 ISA

["Damjan Lampret" <lampret@opencores.org>]

Insns that have more operands and are more often used should have less
opcode bits. And it would be easier to squeez these insns into 4-bit opcode
w/o insns that are not often used (test, set etc.). You can run dhry
benchmark in or1ksim and see which insns are more commonly used. You will
see that these are l.lw, l.sw, l.lbz, add insns and compare/branch insns.

--damjan

>
> I don't get it.
> how to squeeze the following 8-bit opcode into 4-bit?
> Best regards, Jimmy
>