39c39,54
< # FXCH
---
> def macroop FXCH_R
> {
> movfp ufp1, sti
> movfp sti, st(0)
> movfp st(0), ufp1
> };
>
> def macroop FXCH_M
> {
> fault "new UnimpInstFault"
> };
>
> def macroop FXCH_P
> {
> fault "new UnimpInstFault"
> };