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| author | Beniamino Galvani <b.galvani@gmail.com> | 2014-01-30 23:02:05 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-02-08 14:50:48 +0000 |
| commit | 58892d4782bf516e8356e3adfe4fc9b10c397b2f (patch) | |
| tree | 70f8c399ddefcbbeea7aeb49428e0a253a8c46c8 /util | |
| parent | c4e57af85272f98c28ccaaace040d2abb0ec85c4 (diff) | |
| download | qemu-58892d4782bf516e8356e3adfe4fc9b10c397b2f.tar.gz qemu-58892d4782bf516e8356e3adfe4fc9b10c397b2f.tar.bz2 qemu-58892d4782bf516e8356e3adfe4fc9b10c397b2f.zip | |
util/fifo8: clear fifo head upon reset
To improve the predictability of fifo8_pop_buf(), the fifo head is set
to the start of data buffer upon a reset so that the first call to the
function will be able to retrieve all data in the fifo.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/fifo8.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/util/fifo8.c b/util/fifo8.c index a7503c2293..6a43482c9e 100644 --- a/util/fifo8.c +++ b/util/fifo8.c @@ -89,6 +89,7 @@ const uint8_t *fifo8_pop_buf(Fifo8 *fifo, uint32_t max, uint32_t *num) void fifo8_reset(Fifo8 *fifo) { fifo->num = 0; + fifo->head = 0; } bool fifo8_is_empty(Fifo8 *fifo) |