This adds code to loadstore1 to convert between single-precision and
double-precision formats, and implements the lfs* and stfs*
instructions. The conversion processes are described in Power ISA
v3.1 Book 1 sections 4.6.2 and 4.6.3.
These conversions take one cycle, so lfs* and stfs* are one cycle
slower than lfd* and stfd*.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
We were copying in XER[SO] for the dot-form instructions but not the
explicit compare instructions. Fix this.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Some VHDL compilers like verific [1] don't like these, so let's remove
them. Lots of random code changes, but passes make check.
Also add basic script to run verific and generate verilog.
1. https://www.verific.com/
Signed-off-by: Michael Neuling <mikey@neuling.org>
