From: gameblabla <gameblabla@users.noreply.github.com>
Date: Sat, 2 Oct 2021 14:39:44 +0000 (+0000)
Subject: Fix for Armored Core misdetecting a Link cable being detected (#223)
X-Git-Tag: r23~117
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b59f02a471a76ea61c0e6bd1082dc764e9aca59e;p=pcsx_rearmed.git

Fix for Armored Core misdetecting a Link cable being detected (#223)

For some reason, the game detects that a link cable is plugged in
and disables the local multiplayer as a result.

Thanks @sony for fixing the issue in their PS Classic branch, a
simplier fix is done here instead.

Co-authored-by: Sony
---

diff --git a/libpcsxcore/psxhw.c b/libpcsxcore/psxhw.c
index 84ce2f73..dbcb9892 100644
--- a/libpcsxcore/psxhw.c
+++ b/libpcsxcore/psxhw.c
@@ -123,7 +123,14 @@ u16 psxHwRead16(u32 add) {
 			return hard;
 		case 0x1f80105e:
 			hard = SIO1_readBaud16();
-			return hard;
+			return hard;
+#else
+		/* Fixes Armored Core misdetecting the Link cable being detected.
+		 * We want to turn that thing off and force it to do local multiplayer instead.
+		 * Thanks Sony for the fix, they fixed it in their PS Classic fork.
+		 */
+		case 0x1f801054:
+			return 0x80;
 #endif
 		case 0x1f801100:
 			hard = psxRcntRcount(0);