From 409f9f42b348a4c357ad861925b1e0690dcc0311 Mon Sep 17 00:00:00 2001
From: TomW <TomW@localhost>
Date: Fri, 3 Jan 2014 15:26:54 +0000
Subject: [PATCH] IBM XT BIOS switched from 01/10/86 version to 11/08/82.

---
 readme.txt |  4 ++--
 src/mem.c  | 12 ++++--------
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/readme.txt b/readme.txt
index a9f9dc4..154c5a1 100644
--- a/readme.txt
+++ b/readme.txt
@@ -41,8 +41,8 @@ However, this was targetted as businesses and was more successful than the origi
 
 ROM files needed:
 
-xt050986.0
-xt050986.1
+5000027.u19
+1501512.u18
 
 
 IBM AT (1984)
diff --git a/src/mem.c b/src/mem.c
index 51181ed..3afe0e6 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -326,14 +326,10 @@ int loadbios()
                 f=romfopen("roms/ibmxt/xt.rom","rb");
                 if (!f)
                 {
-                        f=romfopen("roms/ibmxt/xt050986.0","rb");
-                        ff=romfopen("roms/ibmxt/xt050986.1","rb");
-                        if (!f || !ff) break;
-                        for (c=0x0000;c<0x10000;c+=2)
-                        {
-                                rom[c]=getc(f);
-                                rom[c+1]=getc(ff);
-                        }
+                        f = romfopen("roms/ibmxt/5000027.u19", "rb");
+                        ff = romfopen("roms/ibmxt/1501512.u18","rb");
+                        fread(rom, 0x8000, 1, f);
+                        fread(rom + 0x8000, 0x8000, 1, ff);
                         fclose(ff);
                         fclose(f);
                         mem_load_xtide_bios();