From 1e5f8f9d3f14041570116ee3e44d524e0bf89c12 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Mon, 2 Sep 2024 19:33:13 +0200
Subject: [PATCH] FDC: Fix initial condition on non-DMA writes, fixes #4785.

---
 src/floppy/fdc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/floppy/fdc.c b/src/floppy/fdc.c
index 6baef8ab8..0c18f2f30 100644
--- a/src/floppy/fdc.c
+++ b/src/floppy/fdc.c
@@ -612,9 +612,11 @@ fdc_io_command_phase1(fdc_t *fdc, int out)
 
     ui_sb_update_icon(SB_FLOPPY | real_drive(fdc, fdc->drive), 1);
     fdc->stat = out ? 0x10 : 0x50;
-    if ((fdc->flags & FDC_FLAG_PCJR) || !fdc->dma)
+    if ((fdc->flags & FDC_FLAG_PCJR) || !fdc->dma) {
         fdc->stat |= 0x20;
-    else
+        if (out)
+            fdc->stat |= 0x80;
+    } else
         dma_set_drq(fdc->dma_ch, 1);
 }