From: Toni Wilen <twilen@winuae.net>
Date: Tue, 26 Dec 2023 17:10:20 +0000 (+0200)
Subject: Fix zero length disk dma not finishing when dsksync is detected.
X-Git-Tag: 5200~124
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=e11ead6c5cf1488a871803c25c78a1a8b363d72e;p=francis%2Fwinuae.git

Fix zero length disk dma not finishing when dsksync is detected.
---

diff --git a/disk.cpp b/disk.cpp
index b0519d16..20e05314 100644
--- a/disk.cpp
+++ b/disk.cpp
@@ -4276,7 +4276,12 @@ static void wordsync_detected(bool startup)
 	if (dskdmaen != DSKDMA_OFF) {
 		int prev_dma_enabled = dma_enable;
 		if (!startup) {
-			dma_enable = 1;
+			if (!dma_enable) {
+				dma_enable = 1;
+				if (dsklength == 0) {
+					disk_dmafinished();
+				}
+			}
 		}
 		if (disk_debug_logging) {
 			int pos = -1;
@@ -4801,7 +4806,7 @@ static void DSKLEN_2(uae_u16 v, int hpos)
 			return;
 		}
 		dskdmaen = DSKDMA_READ;
-		DISK_start ();
+		DISK_start();
 		weirddma = dsklength < 544 * 11 * 2;
 	}
 	if (!(v & 0x8000)) {