From cbdfa32e6513872f8e2b1de8aa3ac54f19390c1a Mon Sep 17 00:00:00 2001 From: OBattler Date: Wed, 25 Jun 2025 05:42:50 +0200 Subject: [PATCH] Reset the FIFO and update its lengths on test mode set/reset, fixes #5702. --- src/floppy/fdc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/floppy/fdc.c b/src/floppy/fdc.c index 186d4c894..523ae6948 100644 --- a/src/floppy/fdc.c +++ b/src/floppy/fdc.c @@ -191,7 +191,7 @@ fdc_ctrl_reset(void *priv) fdc->step = 0; fdc->power_down = 0; - if (!fdc->lock) { + if (!fdc->lock && !fdc->fifointest) { fdc->fifo = 0; fdc->tfifo = 1; @@ -808,6 +808,9 @@ fdc_write(uint16_t addr, uint8_t val, void *priv) fdc->tfifo = 1; fdc->fifointest = 0; } + fifo_reset(fdc->fifo_p); + fifo_set_len(fdc->fifo_p, fdc->tfifo + 1); + fifo_set_trigger_len(fdc->fifo_p, fdc->tfifo + 1); } return; case 4: /* DSR */