- ignore single mode command 0x02 (386BSD writes it, but works with i…

…t ignored)
mcb30 · May 18, 2010 · a262e42 · a262e42
1 parent 791ebff
commit a262e42
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/iodev/pic.cc b/iodev/pic.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: pic.cc,v 1.56 2009/12/04 19:50:29 sshwarts Exp $
+// $Id: pic.cc,v 1.57 2010/05/18 17:48:48 vruppert Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //  Copyright (C) 2002-2009  The Bochs Project
@@ -381,6 +381,10 @@ void bx_pic_c::write(Bit32u address, Bit32u value, unsigned io_len)
           service_master_pic();
           break;
 
+        case 0x02: // single mode bit: 1 = single, 0 = cascade
+          // ignore. 386BSD writes this value but works with it ignored.
+          break;
+
         default:
           BX_PANIC(("write to port 20h = %02x", value));
       } /* switch (value) */
@@ -556,6 +560,10 @@ void bx_pic_c::write(Bit32u address, Bit32u value, unsigned io_len)
           service_slave_pic();
           break;
 
+        case 0x02: // single mode bit: 1 = single, 0 = cascade
+          // ignore. 386BSD writes this value but works with it ignored.
+          break;
+
         default:
           BX_PANIC(("write to port A0h = %02x", value));
       } /* switch (value) */