Alessandro Gatti 3cd95dda64 py/asmrv32: Generate better comparison sequences. ...

This commit changes the sequences generated for not-equal and
less-than-or-equal comparisons, in favour of better replacements.

The new not-equal comparison generates a sequence of equal size but
without the burden of a jump to set the output value, this also had
the effect of reducing the size of the code generator as only two
opcodes need to be generated instead of three.

The less-than-or-equal sequence, on the other hand, is actually two
bytes shorter and does not contain any jumps.  If Zcb opcodes can be
used for performing the final XOR operation then two more bytes could be
saved on each comparison.  The same remarks about having a shorter
generator due to two opcodes being generated instead of three still
applies here.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>

2025-11-03 13:53:45 +11:00

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