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-rw-r--r--py/showbc.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/py/showbc.c b/py/showbc.c
index 837ee7611f..4bee97650a 100644
--- a/py/showbc.c
+++ b/py/showbc.c
@@ -11,10 +11,20 @@
#if MICROPY_DEBUG_PRINTERS
-#define DECODE_UINT do { unum = *ip++; if (unum > 127) { unum = ((unum & 0x3f) << 8) | (*ip++); } } while (0)
+#define DECODE_UINT { \
+ unum = 0; \
+ do { \
+ unum = (unum << 7) + (*ip & 0x7f); \
+ } while ((*ip++ & 0x80) != 0); \
+}
#define DECODE_ULABEL do { unum = (ip[0] | (ip[1] << 8)); ip += 2; } while (0)
#define DECODE_SLABEL do { unum = (ip[0] | (ip[1] << 8)) - 0x8000; ip += 2; } while (0)
-#define DECODE_QSTR do { qstr = *ip++; if (qstr > 127) { qstr = ((qstr & 0x3f) << 8) | (*ip++); } } while (0)
+#define DECODE_QSTR { \
+ qstr = 0; \
+ do { \
+ qstr = (qstr << 7) + (*ip & 0x7f); \
+ } while ((*ip++ & 0x80) != 0); \
+}
void mp_byte_code_print(const byte *ip, int len) {
const byte *ip_start = ip;