From: gameblabla <gameblabla@protonmail.com>
Date: Sat, 2 Oct 2021 02:37:04 +0000 (+0200)
Subject: Fix for Armored Core misdetecting a Link cable being detected
X-Git-Tag: r24l~557^2
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;ds=sidebyside;h=559fd298151dd8704e2a02c3c356bcb437f4df15;hp=--cc;p=pcsx_rearmed.git

Fix for Armored Core misdetecting a Link cable being detected

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
simpler fix is done here instead.

Co-authored-by: Sony
---

559fd298151dd8704e2a02c3c356bcb437f4df15
diff --git a/libpcsxcore/psxhw.c b/libpcsxcore/psxhw.c
index c90f8c73..5981ee59 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);