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py: Change jump-if-x-or-pop opcodes to have unsigned offset argument.

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These jumps are always forwards, and it's more efficient in the VM to
decode an unsigned argument.  These opcodes are already optimised versions
of the sequence "dup-top pop-jump-if-x pop" so it doesn't hurt generality
to optimise them further.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2022-03-21 16:36:13 +11:00
parent acd2c5c834
commit 6d11c69983
5 changed files with 11 additions and 13 deletions
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4
py/showbc.c
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@@ -338,12 +338,12 @@ const byte *mp_bytecode_print_str(const mp_print_t *print, const byte *ip_start,
break;
case MP_BC_JUMP_IF_TRUE_OR_POP:
DECODE_SLABEL;
DECODE_ULABEL;
mp_printf(print, "JUMP_IF_TRUE_OR_POP " UINT_FMT, (mp_uint_t)(ip + unum - ip_start));
break;
case MP_BC_JUMP_IF_FALSE_OR_POP:
DECODE_SLABEL;
DECODE_ULABEL;
mp_printf(print, "JUMP_IF_FALSE_OR_POP " UINT_FMT, (mp_uint_t)(ip + unum - ip_start));
break;