From c52ec26b1ae2e970e05efe7efbc925fb6cb52c04 Mon Sep 17 00:00:00 2001
From: Volker Ruppert <info@vruppert.de>
Date: Fri, 30 Jul 2004 19:32:57 +0000
Subject: [PATCH] - cirrus init: set standard vga mode and reset bitblt

---
 clext.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/clext.c b/clext.c
index 050e2e8..bd630de 100644
--- a/clext.c
+++ b/clext.c
@@ -343,7 +343,7 @@ cirrus_init:
   call cirrus_check
   jnz no_cirrus
   SET_INT_VECTOR(0x10, #0xC000, #cirrus_int10_handler)
-  mov al, #0x0f
+  mov al, #0x0f ; memory setup
   mov dx, #0x3C4
   out dx, al
   inc dx
@@ -353,6 +353,13 @@ cirrus_init:
   mov al, #0x0a
   dec dx
   out dx, ax
+  mov ax, #0x0007 ; set vga mode
+  out dx, ax
+  mov ax, #0x0431 ; reset bitblt
+  mov dx, #0x3CE
+  out dx, ax
+  mov ax, #0x0031
+  out dx, ax
 no_cirrus:
   ret
 
-- 
2.11.4.GIT