On 5/12/21 1:54 PM, [email protected] wrote:
+### Prefixed No-operation Instruction
+
+&PNOP invalid_suffix:bool
+@PNOP 000001 11 0000-- 000000000000000000 \
+ ................................ &PNOP
+
+{
+ ## Invalid suffixes: Branch instruction
+ # bc[l][a]
+ PNOP ................................ \
+ 010000-------------------------- @PNOP invalid_suffix=1
For other cpus it has often turned out to be helpful to have a trans_INVALID or
UNDEF or RESERVED or suchlike to use for cases like this. That way you don't
need a special argument set, nor to set a flag as you do for each of these.
Also, the invalid suffixes themselves do not overlap, so you can get a slightly
better decode via nested [], like so:
{
[
INVALID ...
INVALID ...
...
]
NOP ...
}
r~
