bdb89cd364
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
209 lines
5.9 KiB
C++
209 lines
5.9 KiB
C++
// Copyright (C) 2001 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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#include "bochs.h"
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#define LOG_THIS BX_CPU_THIS_PTR
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void
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BX_CPU_C::write_flags(Bit16u flags, Boolean change_IOPL, Boolean change_IF)
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{
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BX_CPU_THIS_PTR set_CF(flags & 0x01);
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BX_CPU_THIS_PTR set_PF((flags >> 2) & 0x01);
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BX_CPU_THIS_PTR set_AF((flags >> 4) & 0x01);
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BX_CPU_THIS_PTR set_ZF((flags >> 6) & 0x01);
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BX_CPU_THIS_PTR set_SF((flags >> 7) & 0x01);
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#if 0
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// +++
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if (BX_CPU_THIS_PTR eflags.tf==0 && (flags&0x0100))
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BX_DEBUG(( "TF 0->1\n" ));
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else if (BX_CPU_THIS_PTR eflags.tf && !(flags&0x0100))
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BX_DEBUG(( "TF 1->0\n" ));
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else if (BX_CPU_THIS_PTR eflags.tf && (flags&0x0100))
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BX_DEBUG(( "TF 1->1\n" ));
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#endif
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BX_CPU_THIS_PTR eflags.tf = (flags >> 8) & 0x01;
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if (BX_CPU_THIS_PTR eflags.tf) {
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BX_CPU_THIS_PTR async_event = 1;
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}
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if (change_IF)
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BX_CPU_THIS_PTR eflags.if_ = (flags >> 9) & 0x01;
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BX_CPU_THIS_PTR eflags.df = (flags >> 10) & 0x01;
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BX_CPU_THIS_PTR set_OF((flags >> 11) & 0x01);
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#if BX_CPU_LEVEL == 2
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BX_CPU_THIS_PTR eflags.iopl = 0;
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BX_CPU_THIS_PTR eflags.nt = 0;
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#else
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if (change_IOPL)
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BX_CPU_THIS_PTR eflags.iopl = (flags >> 12) & 0x03;
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BX_CPU_THIS_PTR eflags.nt = (flags >> 14) & 0x01;
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#endif
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}
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#if BX_CPU_LEVEL >= 3
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void
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BX_CPU_C::write_eflags(Bit32u eflags_raw, Boolean change_IOPL, Boolean change_IF,
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Boolean change_VM, Boolean change_RF)
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{
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BX_CPU_THIS_PTR set_CF(eflags_raw & 0x01);
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BX_CPU_THIS_PTR set_PF((eflags_raw >> 2) & 0x01);
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BX_CPU_THIS_PTR set_AF((eflags_raw >> 4) & 0x01);
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BX_CPU_THIS_PTR set_ZF((eflags_raw >> 6) & 0x01);
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BX_CPU_THIS_PTR set_SF((eflags_raw >> 7) & 0x01);
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#if 0
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// +++
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if (BX_CPU_THIS_PTR eflags.tf==0 && (eflags_raw&0x0100))
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BX_DEBUG(( "TF 0->1\n" ));
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else if (BX_CPU_THIS_PTR eflags.tf && !(eflags_raw&0x0100))
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BX_DEBUG(( "TF 1->0\n" ));
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else if (BX_CPU_THIS_PTR eflags.tf && (eflags_raw&0x0100))
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BX_DEBUG(( "TF 1->1\n" ));
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#endif
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BX_CPU_THIS_PTR eflags.tf = (eflags_raw >> 8) & 0x01;
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if (BX_CPU_THIS_PTR eflags.tf) {
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BX_CPU_THIS_PTR async_event = 1;
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}
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if (change_IF)
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BX_CPU_THIS_PTR eflags.if_ = (eflags_raw >> 9) & 0x01;
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BX_CPU_THIS_PTR eflags.df = (eflags_raw >> 10) & 0x01;
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BX_CPU_THIS_PTR set_OF((eflags_raw >> 11) & 0x01);
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if (change_IOPL)
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BX_CPU_THIS_PTR eflags.iopl = (eflags_raw >> 12) & 0x03;
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BX_CPU_THIS_PTR eflags.nt = (eflags_raw >> 14) & 0x01;
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if (change_VM) {
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BX_CPU_THIS_PTR eflags.vm = (eflags_raw >> 17) & 0x01;
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#if BX_SUPPORT_V8086_MODE == 0
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if (BX_CPU_THIS_PTR eflags.vm)
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BX_PANIC(("write_eflags: VM bit set: BX_SUPPORT_V8086_MODE==0\n"));
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#endif
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}
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if (change_RF) {
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BX_CPU_THIS_PTR eflags.rf = (eflags_raw >> 16) & 0x01;
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}
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#if BX_CPU_LEVEL >= 4
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BX_CPU_THIS_PTR eflags.ac = (eflags_raw >> 18) & 0x01;
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BX_CPU_THIS_PTR eflags.id = (eflags_raw >> 21) & 0x01;
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#endif
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}
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#endif /* BX_CPU_LEVEL >= 3 */
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Bit16u
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BX_CPU_C::read_flags(void)
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{
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Bit16u flags;
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flags = (get_CF()) |
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(BX_CPU_THIS_PTR eflags.bit1 << 1) |
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((get_PF()) << 2) |
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(BX_CPU_THIS_PTR eflags.bit3 << 3) |
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((get_AF()>0) << 4) |
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(BX_CPU_THIS_PTR eflags.bit5 << 5) |
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((get_ZF()>0) << 6) |
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((get_SF()>0) << 7) |
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(BX_CPU_THIS_PTR eflags.tf << 8) |
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(BX_CPU_THIS_PTR eflags.if_ << 9) |
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(BX_CPU_THIS_PTR eflags.df << 10) |
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((get_OF()>0) << 11) |
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(BX_CPU_THIS_PTR eflags.iopl << 12) |
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(BX_CPU_THIS_PTR eflags.nt << 14) |
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(BX_CPU_THIS_PTR eflags.bit15 << 15);
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/* 8086: bits 12-15 always set to 1.
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* 286: in real mode, bits 12-15 always cleared.
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* 386+: real-mode: bit15 cleared, bits 14..12 are last loaded value
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* protected-mode: bit 15 clear, bit 14 = last loaded, IOPL?
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*/
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#if BX_CPU_LEVEL < 2
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flags |= 0xF000; /* 8086 nature */
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#elif BX_CPU_LEVEL == 2
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if (real_mode()) {
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flags &= 0x0FFF; /* 80286 in real mode nature */
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}
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#else /* 386+ */
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#endif
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return(flags);
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}
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#if BX_CPU_LEVEL >= 3
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Bit32u
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BX_CPU_C::read_eflags(void)
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{
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Bit32u eflags_raw;
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eflags_raw =
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(get_CF()) |
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(BX_CPU_THIS_PTR eflags.bit1 << 1) |
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((get_PF()) << 2) |
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(BX_CPU_THIS_PTR eflags.bit3 << 3) |
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((get_AF()>0) << 4) |
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(BX_CPU_THIS_PTR eflags.bit5 << 5) |
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((get_ZF()>0) << 6) |
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((get_SF()>0) << 7) |
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(BX_CPU_THIS_PTR eflags.tf << 8) |
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(BX_CPU_THIS_PTR eflags.if_ << 9) |
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(BX_CPU_THIS_PTR eflags.df << 10) |
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((get_OF()>0) << 11) |
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(BX_CPU_THIS_PTR eflags.iopl << 12) |
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(BX_CPU_THIS_PTR eflags.nt << 14) |
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(BX_CPU_THIS_PTR eflags.bit15 << 15) |
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(BX_CPU_THIS_PTR eflags.rf << 16) |
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(BX_CPU_THIS_PTR eflags.vm << 17)
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#if BX_CPU_LEVEL >= 4
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| (BX_CPU_THIS_PTR eflags.ac << 18)
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| (BX_CPU_THIS_PTR eflags.id << 21)
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#endif
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;
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#if 0
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/*
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* 386+: real-mode: bit15 cleared, bits 14..12 are last loaded value
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* protected-mode: bit 15 clear, bit 14 = last loaded, IOPL?
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*/
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#endif
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return(eflags_raw);
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}
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#endif /* BX_CPU_LEVEL >= 3 */
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