From 368462f23f6b3b884451fa0b96e9d1823a0fe180 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Thu, 15 Dec 2022 16:00:12 +0100
Subject: [PATCH] Fixed IBM PS/2 Model 55SX Planar ID.

---
 src/machine/m_ps2_mca.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/machine/m_ps2_mca.c b/src/machine/m_ps2_mca.c
index e59fb1a19..cfe6ba6bd 100644
--- a/src/machine/m_ps2_mca.c
+++ b/src/machine/m_ps2_mca.c
@@ -1405,7 +1405,7 @@ machine_ps2_model_55sx_init(const machine_t *model)
 
     machine_ps2_common_init(model);
 
-    ps2.planar_id = 0xfffb;
+    ps2.planar_id = 0xfbff;
     ps2_mca_board_model_55sx_init(0, 4);
 
     return ret;