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bug in sleep_until on host mode for macOS (#502)

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Graham Sanderson 2021-07-06 12:19:39 -05:00 committed by GitHub
parent dc4342f0f6
commit 5e05469373
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 3 deletions
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6
src/host/hardware_timer/timer.c
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@ -65,12 +65,12 @@ void PICO_WEAK_FUNCTION_IMPL_NAME(busy_wait_until)(absolute_time_t target) {
const int chunk = 1u<<30u; const int chunk = 1u<<30u;
uint64_t target_us = to_us_since_boot(target); uint64_t target_us = to_us_since_boot(target);
uint64_t time_us = time_us_64(); uint64_t time_us = time_us_64();
while (target_us - time_us >= chunk) { while ((int64_t)(target_us - time_us) >= chunk) {
busy_wait_us_32(chunk); busy_wait_us_32(chunk);
time_us = time_us_64(); time_us = time_us_64();
} }
if (target_us != time_us) { if (target_us > time_us) {
busy_wait_us_32(target_us - chunk); busy_wait_us_32(target_us - time_us);
} }
#endif #endif
} }