cec9135e9f
"bx_bool" which is always defined as Bit32u on all platforms. In Carbon
specific code, Boolean is still used because the Carbon header files
define it to unsigned char.
- this fixes bug [ 623152 ] MacOSX: Triple Exception Booting win95.
The bug was that some code in Bochs depends on Boolean to be a
32 bit value. (This should be fixed, but I don't know all the places
where it needs to be fixed yet.) Because Carbon defined Boolean as
an unsigned char, Bochs just followed along and used the unsigned char
definition to avoid compile problems. This exposed the dependency
on 32 bit Boolean on MacOS X only and led to major simulation problems,
that could only be reproduced and debugged on that platform.
- On the mailing list we debated whether to make all Booleans into "bool" or
our own type. I chose bx_bool for several reasons.
1. Unlike C++'s bool, we can guarantee that bx_bool is the same size on all
platforms, which makes it much less likely to have more platform-specific
simulation differences in the future. (I spent hours on a borrowed
MacOSX machine chasing bug 618388 before discovering that different sized
Booleans were the problem, and I don't want to repeat that.)
2. We still have at least one dependency on 32 bit Booleans which must be
fixed some time, but I don't want to risk introducing new bugs into the
simulation just before the 2.0 release.
Modified Files:
bochs.h config.h.in gdbstub.cc logio.cc main.cc pc_system.cc
pc_system.h plugin.cc plugin.h bios/rombios.c cpu/apic.cc
cpu/arith16.cc cpu/arith32.cc cpu/arith64.cc cpu/arith8.cc
cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer16.cc cpu/ctrl_xfer32.cc
cpu/ctrl_xfer64.cc cpu/data_xfer16.cc cpu/data_xfer32.cc
cpu/data_xfer64.cc cpu/debugstuff.cc cpu/exception.cc
cpu/fetchdecode.cc cpu/flag_ctrl_pro.cc cpu/init.cc
cpu/io_pro.cc cpu/lazy_flags.cc cpu/lazy_flags.h cpu/mult16.cc
cpu/mult32.cc cpu/mult64.cc cpu/mult8.cc cpu/paging.cc
cpu/proc_ctrl.cc cpu/segment_ctrl_pro.cc cpu/stack_pro.cc
cpu/tasking.cc debug/dbg_main.cc debug/debug.h debug/sim2.cc
disasm/dis_decode.cc disasm/disasm.h doc/docbook/Makefile
docs-html/cosimulation.html fpu/wmFPUemu_glue.cc
gui/amigaos.cc gui/beos.cc gui/carbon.cc gui/gui.cc gui/gui.h
gui/keymap.cc gui/keymap.h gui/macintosh.cc gui/nogui.cc
gui/rfb.cc gui/sdl.cc gui/siminterface.cc gui/siminterface.h
gui/term.cc gui/win32.cc gui/wx.cc gui/wxmain.cc gui/wxmain.h
gui/x.cc instrument/example0/instrument.cc
instrument/example0/instrument.h
instrument/example1/instrument.cc
instrument/example1/instrument.h
instrument/stubs/instrument.cc instrument/stubs/instrument.h
iodev/cdrom.cc iodev/cdrom.h iodev/cdrom_osx.cc iodev/cmos.cc
iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_arpback.cc
iodev/eth_packetmaker.cc iodev/eth_packetmaker.h
iodev/floppy.cc iodev/floppy.h iodev/guest2host.h
iodev/harddrv.cc iodev/harddrv.h iodev/ioapic.cc
iodev/ioapic.h iodev/iodebug.cc iodev/iodev.h
iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.h
iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pic.h
iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h
iodev/sb16.cc iodev/sb16.h iodev/serial.cc iodev/serial.h
iodev/vga.cc iodev/vga.h memory/memory.h memory/misc_mem.cc
153 lines
3.5 KiB
C
153 lines
3.5 KiB
C
/////////////////////////////////////////////////////////////////////////
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// $Id: lazy_flags.h,v 1.6 2002-10-25 11:44:35 bdenney Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// 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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#if BX_PROVIDE_CPU_MEMORY==1
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#define BX_INSTR_ADD8 1
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#define BX_INSTR_ADD16 2
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#define BX_INSTR_ADD32 3
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#define BX_INSTR_SUB8 4
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#define BX_INSTR_SUB16 5
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#define BX_INSTR_SUB32 6
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#define BX_INSTR_ADC8 7
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#define BX_INSTR_ADC16 8
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#define BX_INSTR_ADC32 9
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#define BX_INSTR_SBB8 10
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#define BX_INSTR_SBB16 11
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#define BX_INSTR_SBB32 12
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#define BX_INSTR_CMP8 13
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#define BX_INSTR_CMP16 14
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#define BX_INSTR_CMP32 15
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#define BX_INSTR_INC8 16
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#define BX_INSTR_INC16 17
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#define BX_INSTR_INC32 18
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#define BX_INSTR_DEC8 19
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#define BX_INSTR_DEC16 20
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#define BX_INSTR_DEC32 21
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#define BX_INSTR_NEG8 22
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#define BX_INSTR_NEG16 23
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#define BX_INSTR_NEG32 24
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#define BX_INSTR_XADD8 25
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#define BX_INSTR_XADD16 26
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#define BX_INSTR_XADD32 27
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#define BX_INSTR_OR8 28
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#define BX_INSTR_OR16 29
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#define BX_INSTR_OR32 30
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#define BX_INSTR_AND8 31
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#define BX_INSTR_AND16 32
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#define BX_INSTR_AND32 33
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#define BX_INSTR_TEST8 34
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#define BX_INSTR_TEST16 35
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#define BX_INSTR_TEST32 36
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#define BX_INSTR_XOR8 37
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#define BX_INSTR_XOR16 38
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#define BX_INSTR_XOR32 39
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#define BX_INSTR_CMPS8 40
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#define BX_INSTR_CMPS16 41
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#define BX_INSTR_CMPS32 42
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#define BX_INSTR_SCAS8 43
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#define BX_INSTR_SCAS16 44
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#define BX_INSTR_SCAS32 45
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#define BX_INSTR_SHR8 46
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#define BX_INSTR_SHR16 47
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#define BX_INSTR_SHR32 48
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#define BX_INSTR_SHL8 49
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#define BX_INSTR_SHL16 50
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#define BX_INSTR_SHL32 51
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#if BX_SUPPORT_X86_64
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#define BX_INSTR_ADD64 52
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#define BX_INSTR_SUB64 53
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#define BX_INSTR_ADC64 54
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#define BX_INSTR_SBB64 55
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#define BX_INSTR_CMP64 56
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#define BX_INSTR_INC64 57
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#define BX_INSTR_DEC64 58
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#define BX_INSTR_NEG64 59
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#define BX_INSTR_XADD64 60
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#define BX_INSTR_OR64 61
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#define BX_INSTR_AND64 62
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#define BX_INSTR_TEST64 63
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#define BX_INSTR_XOR64 64
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#define BX_INSTR_CMPS64 65
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#define BX_INSTR_SCAS64 66
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#define BX_INSTR_SHR64 67
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#define BX_INSTR_SHL64 68
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#endif
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#define BX_LF_INDEX_KNOWN 0
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#define BX_LF_INDEX_OSZAPC 1
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#define BX_LF_INDEX_OSZAP 2
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#define BX_LF_MASK_OSZAPC 0x111111
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#define BX_LF_MASK_OSZAP 0x222220
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typedef struct {
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Bit8u op1_8;
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Bit8u op2_8;
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Bit8u result_8;
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Bit16u op1_16;
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Bit16u op2_16;
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Bit16u result_16;
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Bit32u op1_32;
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Bit32u op2_32;
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Bit32u result_32;
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#if BX_SUPPORT_X86_64
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Bit64u op1_64;
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Bit64u op2_64;
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Bit64u result_64;
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#endif
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bx_bool prev_CF;
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unsigned instr;
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} bx_lf_flags_entry;
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#endif /* BX_PROVIDE_CPU_MEMORY==1 */
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