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| author | Damien George <damien.p.george@gmail.com> | 2015-02-08 13:42:00 +0000 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2015-02-08 13:42:00 +0000 |
| commit | 28631537bd14d0497c8d51d796cdda45b3719890 (patch) | |
| tree | 36e7d73319ded08731ce67bb1d6884f5e408032e /py/mpconfig.h | |
| parent | 5351a48185bef5abd935eb8ab06c2e12e9114d2f (diff) | |
| download | micropython-28631537bd14d0497c8d51d796cdda45b3719890.tar.gz micropython-28631537bd14d0497c8d51d796cdda45b3719890.zip | |
py: Add MICROPY_OBJ_BASE_ALIGNMENT to help with 16-bit ports.
Diffstat (limited to 'py/mpconfig.h')
| -rw-r--r-- | py/mpconfig.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/py/mpconfig.h b/py/mpconfig.h index e8c8fcc596..b235d6fe66 100644 --- a/py/mpconfig.h +++ b/py/mpconfig.h @@ -536,6 +536,14 @@ typedef double mp_float_t; /*****************************************************************************/ /* Miscellaneous settings */ +// All uPy objects in ROM must be aligned on at least a 4 byte boundary +// so that the small-int/qstr/pointer distinction can be made. For machines +// that don't do this (eg 16-bit CPU), define the following macro to something +// like __attribute__((aligned(4))). +#ifndef MICROPY_OBJ_BASE_ALIGNMENT +#define MICROPY_OBJ_BASE_ALIGNMENT +#endif + // On embedded platforms, these will typically enable/disable irqs. #ifndef MICROPY_BEGIN_ATOMIC_SECTION #define MICROPY_BEGIN_ATOMIC_SECTION() (0) |