sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
4326 commits 2 branches 0 tags 204 MiB
Commit graph

55 commits

Author SHA1 Message Date
Gabe Black
4285990a96 Reworking how x86's isa description works. I'm adopting the following definitions to make figuring out what's what a little easier: 
MicroOp: A single operation actually implemented in hardware.
MacroOp: A collection of microops which are executed as a unit.
Instruction: An architected instruction which can be implemented with a macroop or a microop.

--HG--
extra : convert_revision : 1cfc8409cc686c75220767839f55a30551aa6f13
 2007-04-04 14:31:59 +00:00
Gabe Black
65fedeb5a7 Made x86 ExtMachInsts distinguishable from each other by defining a real == and a real hash function. 
--HG--
extra : convert_revision : 30f29a36f6ab44e67e62aaf81b685fbe1267c746
 2007-04-04 14:27:00 +00:00
Gabe Black
6010c6ded4 Added all the different variations of the register names. 
--HG--
extra : convert_revision : ff06bdca556a5e1a0dfe7978575c2277c30c002a
 2007-04-04 14:25:36 +00:00
Gabe Black
61c56ffeaf A batch of changes and fixes. Macroops are now generated automatically, multiops do alot more of what they're supposed to (excluding memory operands), and microops are slightly more implemented. 
--HG--
extra : convert_revision : 518059f47e11df50aa450d4a322ef2ac069c99c9
 2007-04-03 15:01:09 +00:00
Gabe Black
0ce6936e7d Zero out ModRM if the byte isn't there, and fix some displacement size stuff. 
--HG--
extra : convert_revision : f43abf33a223a665b30098c63011fb162200d5e6
 2007-04-03 14:56:24 +00:00
Gabe Black
7fcc9d2106 Made the MultiOp format do a little more. It now sets up single microop instructions to return an instance of the right class. The code to decode register numbers and generate loads and stores still needs to be added. Also, a syntax for specifying operands as sources, destinations, or both needs to be established. Multipl microop instructions are also not handled, pending real macroop generation support. 
--HG--
extra : convert_revision : 1a0a4b36afce8255e23e3cdd7a85c1392dda5f72
 2007-03-29 17:57:19 +00:00
Gabe Black
e67a207ad3 Add a microcode assembler. A microcode "program" is a series of statements. Each statement has an optional label at the beginning, a capitilized microcode class name which is roughly equivalent to a mnemonic in a regular ISA, and then an optional series of operands seperated by white space. The operands are either a decimal constant, a label, or a code fragment surrounded by non nested {}s. Labels are a letter or underscore followed by letters, underscores, or digits. The syntax for describing code segments might need to be changed if a need arrises to have {}s in the code itself. 
--HG--
extra : convert_revision : 8e5cfdd1a3c9a7e3731fdf6acd615ee82ac2b9b7
 2007-03-29 17:57:18 +00:00
Gabe Black
77ce05f478 Fidget with the syntax of the MultiOp format in anticipation of making it actually work. 
--HG--
extra : convert_revision : f62a1f035cc11677df8eb5a839ca1247d819fab3
 2007-03-29 00:50:54 -07:00
Gabe Black
fd77212b72 Add code to generate register and immediate based integer op microop classes. 
--HG--
extra : convert_revision : 718f941da74dd3b4557cd21e1772879ac21aa9c6
 2007-03-29 00:49:53 -07:00
Gabe Black
276f6d794d Add a junk operand. With no operands, the parser breaks. 
--HG--
extra : convert_revision : 7410fd3681ed3d9b1293d982ed5f3553a6c75f3f
 2007-03-21 21:09:24 +00:00
Gabe Black
bbffaa8ee0 Start implementing groups of instructions which do the same thing on different sets of inputs. 
--HG--
extra : convert_revision : 6a5be61831588f801965dd4e80cb52f28911c320
 2007-03-21 21:07:43 +00:00
Gabe Black
1707aa750f put the int register count in intregs.hh 
--HG--
extra : convert_revision : c48c13d9c4606c8cb7c60d18cd0f4dac9103a501
 2007-03-21 21:04:54 +00:00
Gabe Black
0a80d06dea Break out the one and two byte opcodes into different files. Also change what bits decode is done on to reflect where clumps of instructions are. 
--HG--
extra : convert_revision : 8768676eac25e6a4f0dc50ce2dc576bdcdd6e025
 2007-03-21 19:19:53 +00:00
Gabe Black
3efec59fc5 Missed a const 
--HG--
rename : src/arch/x86/isa/decoder.isa => src/arch/x86/isa/decoder/decoder.isa
extra : convert_revision : a60e7495da6fe99fa2375a3f801f2962c3e41adb
 2007-03-21 19:15:40 +00:00
Gabe Black
9ad3f1e479 Refactor things a little. 
--HG--
extra : convert_revision : 8167455ffc05130d4afcc68466879c7c439bee57
 2007-03-15 19:16:39 +00:00
Gabe Black
f4eee4fb81 File with the predecoder in it. 
src/arch/x86/predecoder.cc:
    File for the x86 predecoder process function.

--HG--
extra : convert_revision : f7b53c38ff152cb2677d641074218ffd8434457b
 2007-03-15 19:16:38 +00:00
Gabe Black
ae9bed4f8f Split the x86 "process" predecoder method into it's own file. 
--HG--
extra : convert_revision : 88185e592df2a7527d36efcce7376fb05f469cbc
 2007-03-15 19:16:37 +00:00
Gabe Black
6cdd434f7f Changed warns to DPRINTFs and multiply by 8 where needed. 
--HG--
extra : convert_revision : 9db0bc2420ceb5828a79881fa0b420a2d5e5f358
 2007-03-15 16:13:40 +00:00
Gabe Black
075df1469f Added immediate value support, and fixed alot of bugs. This won't support 3 byte opcodes. 
--HG--
extra : convert_revision : 4c79bff2592a668e1154916875f019ecafe67022
 2007-03-15 15:29:39 +00:00
Gabe Black
4379e54b52 Compile fix 
--HG--
extra : convert_revision : 4a66d04404beee9656e3e33089afcec10d7ee5ff
 2007-03-15 03:17:00 +00:00
Gabe Black
32368a2bd6 Merge zizzer.eecs.umich.edu:/bk/newmem 
into  ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86

src/arch/mips/utility.hh:
src/arch/x86/SConscript:
    Hand merge

--HG--
extra : convert_revision : 0ba457aab52bf6ffc9191fd1fe1006ca7704b5b0
 2007-03-15 02:52:51 +00:00
Gabe Black
a2b56088fb Make the predecoder an object with it's own switched header file. Start adding predecoding functionality to x86. 
src/arch/SConscript:
src/arch/alpha/utility.hh:
src/arch/mips/utility.hh:
src/arch/sparc/utility.hh:
src/cpu/base.hh:
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/simple/atomic.cc:
src/cpu/simple/base.cc:
src/cpu/simple/base.hh:
src/cpu/static_inst.hh:
src/arch/alpha/predecoder.hh:
src/arch/mips/predecoder.hh:
src/arch/sparc/predecoder.hh:
    Make the predecoder an object with it's own switched header file.

--HG--
extra : convert_revision : 77206e29089130e86b97164c30022a062699ba86
 2007-03-15 02:47:42 +00:00
Gabe Black
ce18d900a1 Replaced makeExtMI with predecode. 
Removed the getOpcode function from StaticInst which only made sense for Alpha.
Started implementing the x86 predecoder.

--HG--
extra : convert_revision : a13ea257c8943ef25e9bc573024a99abacf4a70d
 2007-03-13 16:13:21 +00:00
Nathan Binkert
1aef5c06a3 Rework the way SCons recurses into subdirectories, making it 
automatic.  The point is that now a subdirectory can be added
to the build process just by creating a SConscript file in it.
The process has two passes.  On the first pass, all subdirs
of the root of the tree are searched for SConsopts files.
These files contain any command line options that ought to be
added for a particular subdirectory.  On the second pass,
all subdirs of the src directory are searched for SConscript
files.  These files describe how to build any given subdirectory.
I have added a Source() function.  Any file (relative to the
directory in which the SConscript resides) passed to that
function is added to the build.  Clean up everything to take
advantage of Source().
function is added to the list of files to be built.

--HG--
extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
 2007-03-10 23:00:54 -08:00
Ali Saidi
58f69391ca implement ipi stufff for SPARC 
src/arch/alpha/utility.hh:
src/arch/mips/utility.hh:
src/arch/sparc/utility.hh:
src/arch/x86/utility.hh:
    add hook for system to startup the cpu or not... in the case of FS sparc, only the first cpu would get spunup.. the rest sit in an idle state until they get an ipi
src/arch/sparc/isa/decoder.isa:
    handle writable bits of strandstatus register in miscregfile
src/arch/sparc/miscregfile.hh:
    some constants for the strand status register
src/arch/sparc/ua2005.cc:
    properly implement the strand status register
src/dev/sparc/iob.cc:
    implement ipi generation properly
src/sim/system.cc:
    call into the ISA to start the CPU (or not)

--HG--
extra : convert_revision : 0003b2032337d8a031a9fc044da726dbb2a9e36f
 2007-03-09 16:56:39 -05:00
Ali Saidi
49527ab553 Merge zizzer:/bk/newmem 
into  zeep.pool:/tmp/newmem

--HG--
extra : convert_revision : f078a05729b5fe464a06a58bc4adcb374f560572
 2007-03-07 15:04:44 -05:00
Ali Saidi
689cab36c9 *MiscReg->*MiscRegNoEffect, *MiscRegWithEffect->*MiscReg 
--HG--
extra : convert_revision : f799b65f1b2a6bf43605e6870b0f39b473dc492b
 2007-03-07 15:04:31 -05:00
Gabe Black
05c86ec0d7 Get X86 to load an elf and start a process for it. 
src/arch/x86/SConscript:
    Add in process source files.
src/arch/x86/isa_traits.hh:
    Replace magic constant numbers with the x86 register names.
src/arch/x86/miscregfile.cc:
    Make clear the miscreg file succeed. There aren't any misc regs, so clearing them is very easy.
src/arch/x86/process.hh:
    An X86 process class.
src/base/loader/elf_object.cc:
    Add in code to recognize x86 as an architecture.
src/base/traceflags.py:
    Add an x86 traceflag
src/sim/process.cc:
    Add in code to create an x86 process.
src/arch/x86/intregs.hh:
    A file which declares names for the integer register indices.
src/arch/x86/linux/linux.cc:
src/arch/x86/linux/linux.hh:
    A very simple translation of SPARC's linux.cc and linux.hh. It's probably not correct for x86, but it might not be correct for SPARC either.
src/arch/x86/linux/process.cc:
src/arch/x86/linux/process.hh:
    An x86 linux process. The syscall table is split out into it's own file.
src/arch/x86/linux/syscalls.cc:
    The x86 Linux syscall table and the uname function.
src/arch/x86/process.cc:
    The x86 process base class.
tests/test-progs/hello/bin/x86/linux/hello:
    An x86 hello world test binary.

--HG--
extra : convert_revision : f22919e010c07aeaf5757dca054d9877a537fd08
 2007-03-06 15:42:30 +00:00
Gabe Black
992fda55f9 Fill out a stub version of the vtophys header file. 
--HG--
extra : convert_revision : 2c10a80a2f73207539e3f98b4a3b864d431f5035
 2007-03-05 17:59:04 +00:00
Gabe Black
296891b1c5 Add in NumGDBRegs so the constructor to the base class can get all it's arguments. 
--HG--
extra : convert_revision : fcec1ad134b53a419a952e556ed75cb1559a1127
 2007-03-05 17:58:15 +00:00
Gabe Black
a473d50e4c Reorganize the floating point register file a little. 
--HG--
extra : convert_revision : 643c147b77e931d49ac559681d4bbda737f6e1c7
 2007-03-05 17:57:26 +00:00
Gabe Black
a46e100bd9 Add some new source files. 
--HG--
extra : convert_revision : 94f3f19eb91b7f54918640b7605008eb1fe75fc7
 2007-03-05 17:56:26 +00:00
Gabe Black
a41b86ba01 Stub decoder. This is probably even farther from finished than it looks... 
--HG--
extra : convert_revision : a39a158fec4560f6eb7a6987592c473677c0b1ba
 2007-03-05 16:16:28 +00:00
Gabe Black
a0294c10cd Added missing include. 
--HG--
extra : convert_revision : 9d00209e5c0ae8aa5ac37f9558627ee212a72c9b
 2007-03-05 16:11:07 +00:00
Gabe Black
ecfc622451 Added LargestRead type for x86. I might have picked the wrong type. 
--HG--
extra : convert_revision : 5570a595b9adbe9c35f9b4f8dd3b50533b5beb97
 2007-03-05 16:10:11 +00:00
Gabe Black
78e5406f19 Stub implementation for x86. 
--HG--
extra : convert_revision : 3eccbf699bb62139a06a9b249e56bd205bc316ed
 2007-03-05 16:09:09 +00:00
Gabe Black
05ba90b726 Stub implementation for x86 
--HG--
extra : convert_revision : dd6b4d14070a2e99c179c5f780c9935847da8eda
 2007-03-05 16:08:18 +00:00
Gabe Black
58d30df676 Added fault generation functions. I would still like to see these go away. The page table fault should be moved into sim/faults.hh because it's a "fake" m5 fault for se mode and shouldn't vary between architectures. 
--HG--
extra : convert_revision : cafe25befd64f83a424c1a09f5e62a16df5408ad
 2007-03-05 16:07:01 +00:00
Gabe Black
7730af9503 Added stub implementations or prototypes for all the functions in this file. 
--HG--
extra : convert_revision : c0170eae8aeae130f81618ae49a60f879c2b523f
 2007-03-05 14:55:09 +00:00
Gabe Black
b2d356a6b2 Added in a missing include. 
--HG--
extra : convert_revision : 712480fef36bf7a34c2c0b8d19dd82689eb78a1d
 2007-03-05 14:53:51 +00:00
Gabe Black
7ed7d6e80d Filled in a stub header file for setting the result of a syscall. 
--HG--
extra : convert_revision : f0a2cdf7d669834b90444fc390b0aceede474737
 2007-03-05 14:53:15 +00:00
Gabe Black
43b8f51bb8 Filled in a stub header file for a stacktrace object. I'm still not sure what this is for, and it probably doesn't work on anything but Alpha. 
--HG--
extra : convert_revision : 9bc3833628d31799a7b578c450dac096a19aead3
 2007-03-05 14:52:28 +00:00
Gabe Black
2e6cf12963 Filled in a stub header file for remote gdb 
--HG--
extra : convert_revision : 6289181697142f672548a4d4cf6e010171cb98e1
 2007-03-05 14:51:21 +00:00
Gabe Black
aa5f42b10d Correct a typo 
--HG--
extra : convert_revision : 1e8ef87ddb28873045a08bd104afc8ce129c4299
 2007-03-05 14:50:33 +00:00
Gabe Black
0e9db1a2e5 Make the constructor (and all the other functions) public 
--HG--
extra : convert_revision : 9d572651fc1722b15ae7dbc59c108d680c911f04
 2007-03-05 14:49:52 +00:00
Gabe Black
b832e6740f Various touch ups 
--HG--
extra : convert_revision : 19ff30d969a46adbd256f674582a9e7d398b56ed
 2007-03-05 14:49:07 +00:00
Gabe Black
ecc1066f43 Added a missing include. 
--HG--
extra : convert_revision : 15a1b49ff9e0a1a15bd2500bec9ec9bc95ee5898
 2007-03-05 14:48:18 +00:00
Gabe Black
ec8b49cc5f Added a missing include. 
--HG--
extra : convert_revision : 62583e5a5647913fb36e1aae265e8ac52a165829
 2007-03-05 14:47:42 +00:00
Gabe Black
30e700600c x86 register file includes. 
--HG--
extra : convert_revision : c00a077dd7ae8f6b48c6939034be244bcf48d715
 2007-03-05 12:23:14 +00:00
Gabe Black
b9b29525a6 Include the x86 specific traits file. 
--HG--
extra : convert_revision : bcf448aedd832022527cc972f7a1f0433987c564
 2007-03-05 12:21:20 +00:00