diff options
| author | Dan Halbert <halbert@halwitz.org> | 2017-10-16 23:48:26 -0400 |
|---|---|---|
| committer | Scott Shawcroft <scott@tannewt.org> | 2017-10-17 10:02:16 -0700 |
| commit | a1409d1432ea4280293749b3a2bb5c2278fda609 (patch) | |
| tree | b08f01997614c9dc6c6034e7dacb3b1528b1730a /shared-bindings/time/__init__.c | |
| parent | 4f4ddf00dcce450aaa79da2cdab25fad674926f9 (diff) | |
redo time.monotonic() to avoid double precision2.1.0
Diffstat (limited to 'shared-bindings/time/__init__.c')
| -rw-r--r-- | shared-bindings/time/__init__.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/shared-bindings/time/__init__.c b/shared-bindings/time/__init__.c index 105758951..6956cc4e6 100644 --- a/shared-bindings/time/__init__.c +++ b/shared-bindings/time/__init__.c @@ -52,7 +52,9 @@ //| :rtype: float //| STATIC mp_obj_t time_monotonic(void) { - return mp_obj_new_float(common_hal_time_monotonic() / 1000.0); + uint64_t time64 = common_hal_time_monotonic(); + // 4294967296 = 2^32 + return mp_obj_new_float(((uint32_t) (time64 >> 32) * 4294967296.0f + (uint32_t) (time64 & 0xffffffff)) / 1000.0f); } MP_DEFINE_CONST_FUN_OBJ_0(time_monotonic_obj, time_monotonic); |