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| author | Jim Mussared <jim.mussared@gmail.com> | 2021-08-19 17:49:33 +1000 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2021-08-20 20:18:52 +1000 |
| commit | b51e7e9d01a696cdfefada2e374db51752d1b803 (patch) | |
| tree | e0ba775ecfe9f5564cf691864abe8e4404e67d75 /py/mpconfig.h | |
| parent | 61d5a8b9ceab474d4137be53b422f5ece70c61a0 (diff) | |
stm32: Disable computed goto on constrained boards.
Saves ~1kiB. Add comment to this effect to mpconfig.h.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
Diffstat (limited to 'py/mpconfig.h')
| -rw-r--r-- | py/mpconfig.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/py/mpconfig.h b/py/mpconfig.h index 2e83c90c5..db2aec3bf 100644 --- a/py/mpconfig.h +++ b/py/mpconfig.h @@ -483,7 +483,8 @@ /* Optimisations */ // Whether to use computed gotos in the VM, or a switch -// Computed gotos are roughly 10% faster, and increase VM code size by a little +// Computed gotos are roughly 10% faster, and increase VM code size by a little, +// e.g. ~1kiB on Cortex M4. // Note: enabling this will use the gcc-specific extensions of ranged designated // initialisers and addresses of labels, which are not part of the C99 standard. #ifndef MICROPY_OPT_COMPUTED_GOTO |