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- VBE fixed set bank bug introduced by my bounds check rewrite

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This commit is contained in:
Jeroen Janssen 2002-03-16 11:37:43 +00:00
parent 92b06b9ebf
commit 6ce05d42cc
1 changed files with 5 additions and 3 deletions
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8
bochs/iodev/vga.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: vga.cc,v 1.28 2002-03-16 10:22:57 japj Exp $
// $Id: vga.cc,v 1.29 2002-03-16 11:37:43 japj Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -2303,11 +2303,13 @@ bx_vga_c::vbe_write(Bit32u address, Bit32u value, unsigned io_len)
case VBE_DISPI_INDEX_BANK: // set bank
{
value=value & 0xff ; // FIXME lobyte = vbe bank A?
// check for max bank nr
if (value < (VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024 /64))
{
BX_INFO(("VBE set bank to %d", BX_VGA_THIS s.vbe_bank));
BX_VGA_THIS s.vbe_bank=(Bit16u) value & 0xff; // FIXME lobyte = vbe bank A?
BX_INFO(("VBE set bank to %d", value));
BX_VGA_THIS s.vbe_bank=value;
}
else
{