commit 6d11c69983f8084459e5bb037d931d5e2d283c78
author Damien George <damien@micropython.org> Mon Mar 21 16:36:13 2022 +1100
committer Damien George <damien@micropython.org> Mon Mar 28 15:43:09 2022 +1100
tree 326ba09cf5a38fba7c384e764e76bece924a2413
parent acd2c5c8349a4cd713b1b36c0e6ec6f39791ca19

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

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>

py/showbc.c

diff --git a/py/showbc.c b/py/showbc.c
index 178fa45..f9c334b 100644
--- a/py/showbc.c
+++ b/py/showbc.c
@@ -338,12 +338,12 @@
             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;