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PIC IRQ handling bug fix by Russ Cox

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This commit is contained in:
Stanislav Shwartsman 2007-11-30 08:56:34 +00:00
parent a0147fe055
commit 0aaa1629aa
1 changed files with 2 additions and 1 deletions
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3
bochs/iodev/pic.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: pic.cc,v 1.46 2007-09-28 19:52:04 sshwarts Exp $
// $Id: pic.cc,v 1.47 2007-11-30 08:56:34 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -456,6 +456,7 @@ void bx_pic_c::write(Bit32u address, Bit32u value, unsigned io_len)
BX_PIC_THIS s.slave_pic.irr = 0x00; /* no IRQ's requested */
BX_PIC_THIS s.slave_pic.lowest_priority = 7;
BX_PIC_THIS s.slave_pic.INT = 0; /* reprogramming clears previous INTR request */
BX_PIC_THIS s.master_pic.IRQ_in &= ~(1 << 2);
BX_PIC_THIS s.slave_pic.auto_eoi = 0;
BX_PIC_THIS s.slave_pic.rotate_on_autoeoi = 0;
if (value & 0x02)