5873b26a82
bochs.h already not include iodev.h which reduces compilation dependences for almost all cpu and fpu files, now cpu files will not be recompiled if iodev includes was changed
108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: extfpuirq.cc,v 1.6 2004-06-19 15:20:11 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// External circuit for MSDOS compatible FPU exceptions
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//
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// Define BX_PLUGGABLE in files that can be compiled into plugins. For
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// platforms that require a special tag on exported symbols, BX_PLUGGABLE
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// is used to know when we are exporting symbols and when we are importing.
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#define BX_PLUGGABLE
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#include "iodev.h"
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#define LOG_THIS theExternalFpuIrq->
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bx_extfpuirq_c *theExternalFpuIrq = NULL;
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int
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libextfpuirq_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[])
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{
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theExternalFpuIrq = new bx_extfpuirq_c ();
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bx_devices.pluginExtFpuIrq = theExternalFpuIrq;
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BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theExternalFpuIrq, BX_PLUGIN_EXTFPUIRQ);
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return(0); // Success
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}
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void
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libextfpuirq_LTX_plugin_fini(void)
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{
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}
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bx_extfpuirq_c::bx_extfpuirq_c(void)
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{
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put("EFIRQ");
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settype(EXTFPUIRQLOG);
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}
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bx_extfpuirq_c::~bx_extfpuirq_c(void)
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{
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// nothing for now
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BX_DEBUG(("Exit."));
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}
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void
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bx_extfpuirq_c::init(void)
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{
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// called once when bochs initializes
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DEV_register_iowrite_handler(this, write_handler, 0x00F0, "External FPU IRQ", 1);
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DEV_register_irq(13, "External FPU IRQ");
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}
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void
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bx_extfpuirq_c::reset(unsigned type)
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{
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// We should handle IGNNE here
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DEV_pic_lower_irq(13);
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}
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// static IO port write callback handler
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// redirects to non-static class handler to avoid virtual functions
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void
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bx_extfpuirq_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len)
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{
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#if !BX_USE_EFI_SMF
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bx_extfpuirq_c *class_ptr = (bx_extfpuirq_c *) this_ptr;
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class_ptr->write(address, value, io_len);
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}
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void
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bx_extfpuirq_c::write(Bit32u address, Bit32u value, unsigned io_len)
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{
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#else
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UNUSED(this_ptr);
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#endif // !BX_USE_EFI_SMF
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// We should handle IGNNE here
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DEV_pic_lower_irq(13);
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}
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