[Coco] gcc-coco revisited

[Roger Taylor]

>Chuckle...  But you know, on the coco list, you cannot trigger on
>"sex" as thats a legit assembly nemonic name.  Sign EXtend though,
>while a usable command, is a poor substitute for the real thing. :)


SEX:            A <- B

It gets even better with the 6309.  There's a 16-bit to 32-bit extend!

SEXW:   A B <- E F
The result is register Q (A B E F).  Register Q is a very powerful one, indeed.