diff options
| author | Reinhard Panhuber <[email protected]> | 2020-09-26 11:00:31 +0200 |
|---|---|---|
| committer | Reinhard Panhuber <[email protected]> | 2020-09-26 11:00:31 +0200 |
| commit | 8dcb10493330513b5b017306634a936413f1ecd5 (patch) | |
| tree | dfe2e2587bc3f63447bcee51cf081d4d00bc6b32 | |
| parent | 9ddcfc09d7c0f076248307f76222d5b1db9e0882 (diff) | |
Change modulo substitute to while ( idx >= depth) idx -= depth;
| -rw-r--r-- | src/common/tusb_fifo.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/common/tusb_fifo.c b/src/common/tusb_fifo.c index 1e0c6b5e7..f41cf9f6c 100644 --- a/src/common/tusb_fifo.c +++ b/src/common/tusb_fifo.c @@ -81,9 +81,8 @@ bool tu_fifo_config(tu_fifo_t *f, void* buffer, uint16_t depth, uint16_t item_si static inline uint16_t _ff_mod(uint16_t idx, uint16_t depth) { -// return idx % depth; - idx -= depth & -(idx >= depth); - return idx -= depth & -(idx >= depth); + while ( idx >= depth) idx -= depth; + return idx; } // send one item to FIFO WITHOUT updating write pointer |