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-rw-r--r--py/emitnthumb.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/py/emitnthumb.c b/py/emitnthumb.c
index e1dc4976d..1c33e7a68 100644
--- a/py/emitnthumb.c
+++ b/py/emitnthumb.c
@@ -8,8 +8,10 @@
#define GENERIC_ASM_API (1)
#include "py/asmthumb.h"
-// Word index of REG_LOCAL_1(=r4) in nlr_buf_t
-#define NLR_BUF_IDX_LOCAL_1 (3)
+// Word indices of REG_LOCAL_x in nlr_buf_t
+#define NLR_BUF_IDX_LOCAL_1 (3) // r4
+#define NLR_BUF_IDX_LOCAL_2 (4) // r5
+#define NLR_BUF_IDX_LOCAL_3 (5) // r6
#define N_THUMB (1)
#define EXPORT_FUN(name) emit_native_thumb_##name