py: Provide mp_decode_uint_value to help optimise stack usage.

This has a noticeable improvement on x86-64 and Thumb2 archs, where stack
usage is reduced by 2 machine words in the VM.

1 files changed, 1 insertions, 0 deletions

diff --git a/py/bc.h b/py/bc.h
index 996b1a2f3..e8d428612 100644
--- a/py/bc.h
+++ b/py/bc.h
@@ -91,6 +91,7 @@ typedef struct _mp_code_state_t {
 } mp_code_state_t;
 
 mp_uint_t mp_decode_uint(const byte **ptr);
+mp_uint_t mp_decode_uint_value(const byte *ptr);
 
 mp_vm_return_kind_t mp_execute_bytecode(mp_code_state_t *code_state, volatile mp_obj_t inject_exc);
 mp_code_state_t *mp_obj_fun_bc_prepare_codestate(mp_obj_t func, size_t n_args, size_t n_kw, const mp_obj_t *args);