From 4e9400bfcad9e15d4432f70ce192bea410f4e5be Mon Sep 17 00:00:00 2001
From: SarahW <SarahW@localhost>
Date: Tue, 16 Aug 2016 18:37:34 +0100
Subject: [PATCH] IBM PC now has correct memory size switch settings
 implemented - should now boot correctly on configurations other than 640kb.

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

diff --git a/src/keyboard_xt.c b/src/keyboard_xt.c
index 3ddd82b..af62d61 100644
--- a/src/keyboard_xt.c
+++ b/src/keyboard_xt.c
@@ -137,9 +137,9 @@ uint8_t keyboard_xt_read(uint16_t port, void *priv)
                 if (romset == ROM_IBMPC)
                 {
                         if (keyboard_xt.pb & 0x04)
-                                temp = 0x02;
+                                temp = ((mem_size-64) / 32) & 0xf;
                         else
-                                temp = 0x01;
+                                temp = ((mem_size-64) / 32) >> 4;
                 }
                 else
                 {