History log of /gem5/src/arch/mips/isa/formats/unimp.isa
Revision Date Author Comments
# 12616:4b463b4dc098 23-Mar-2018 Gabe Black <gabeblack@google.com>

arch: Fix all override related warnings.

Clang has started(?) reporting override related warnings, something gcc
apparently did before, but was disabled in the SConstruct. Rather than
disable the warnings in for clang as well, this change fixes the
warnings. A future change will re-enable the warnings for gcc.

Change-Id: I3cc79e45749b2ae0f9bebb1acadc56a3d3a942da
Reviewed-on: https://gem5-review.googlesource.com/9343
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>


# 12236:126ac9da6050 04-Nov-2017 Gabe Black <gabeblack@google.com>

alpha,arm,mips,power,riscv,sparc,x86: Merge exec decl templates.

In the ISA instruction definitions, some classes were declared with
execute, etc., functions outside of the main template because they
had CPU specific signatures and would need to be duplicated with
each CPU plugged into them. Now that the instructions always just
use an ExecContext, there's no reason for those templates to be
separate. This change folds those templates together.

Change-Id: I13bda247d3d1cc07c0ea06968e48aa5b4aace7fa
Reviewed-on: https://gem5-review.googlesource.com/5401
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Alec Roelke <ar4jc@virginia.edu>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>


# 12234:78ece221f9f5 02-Nov-2017 Gabe Black <gabeblack@google.com>

alpha,arm,mips,power,riscv,sparc,x86,isa: De-specialize ExecContexts.

The ISA parser used to generate different copies of exec functions
for each exec context class a particular CPU wanted to use. That's
since been changed so that those functions take a pointer to the base
ExecContext, so the code which would generate those extra functions
can be removed, and some functions which used to be templated on an
ExecContext subclass can be untemplated, or minimally less templated.

Now that some functions aren't going to be instantiated multiple times
with different signatures, there are also opportunities to collapse
templates and make many instruction definitions simpler within the
parser. Since those changes will be less mechanical, they're left for
later changes and will probably be done in smaller increments.

Change-Id: I0015307bb02dfb9c60380b56d2a820f12169ebea
Reviewed-on: https://gem5-review.googlesource.com/5381
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>


# 10474:799c8ee4ecba 16-Oct-2014 Andreas Hansson <andreas.hansson@arm.com>

arch: Use shared_ptr for all Faults

This patch takes quite a large step in transitioning from the ad-hoc
RefCountingPtr to the c++11 shared_ptr by adopting its use for all
Faults. There are no changes in behaviour, and the code modifications
are mostly just replacing "new" with "make_shared".


# 10196:be0e1724eb39 09-May-2014 Curtis Dunham <Curtis.Dunham@arm.com>

arch: teach ISA parser how to split code across files

This patch encompasses several interrelated and interdependent changes
to the ISA generation step. The end goal is to reduce the size of the
generated compilation units for instruction execution and decoding so
that batch compilation can proceed with all CPUs active without
exhausting physical memory.

The ISA parser (src/arch/isa_parser.py) has been improved so that it can
accept 'split [output_type];' directives at the top level of the grammar
and 'split(output_type)' python calls within 'exec {{ ... }}' blocks.
This has the effect of "splitting" the files into smaller compilation
units. I use air-quotes around "splitting" because the files themselves
are not split, but preprocessing directives are inserted to have the same
effect.

Architecturally, the ISA parser has had some changes in how it works.
In general, it emits code sooner. It doesn't generate per-CPU files,
and instead defers to the C preprocessor to create the duplicate copies
for each CPU type. Likewise there are more files emitted and the C
preprocessor does more substitution that used to be done by the ISA parser.

Finally, the build system (SCons) needs to be able to cope with a
dynamic list of source files coming out of the ISA parser. The changes
to the SCons{cript,truct} files support this. In broad strokes, the
targets requested on the command line are hidden from SCons until all
the build dependencies are determined, otherwise it would try, realize
it can't reach the goal, and terminate in failure. Since build steps
(i.e. running the ISA parser) must be taken to determine the file list,
several new build stages have been inserted at the very start of the
build. First, the build dependencies from the ISA parser will be emitted
to arch/$ISA/generated/inc.d, which is then read by a new SCons builder
to finalize the dependencies. (Once inc.d exists, the ISA parser will not
need to be run to complete this step.) Once the dependencies are known,
the 'Environments' are made by the makeEnv() function. This function used
to be called before the build began but now happens during the build.
It is easy to see that this step is quite slow; this is a known issue
and it's important to realize that it was already slow, but there was
no obvious cause to attribute it to since nothing was displayed to the
terminal. Since new steps that used to be performed serially are now in a
potentially-parallel build phase, the pathname handling in the SCons scripts
has been tightened up to deal with chdir() race conditions. In general,
pathnames are computed earlier and more likely to be stored, passed around,
and processed as absolute paths rather than relative paths. In the end,
some of these issues had to be fixed by inserting serializing dependencies
in the build.

Minor note:
For the null ISA, we just provide a dummy inc.d so SCons is never
compelled to try to generate it. While it seems slightly wrong to have
anything in src/arch/*/generated (i.e. a non-generated 'generated' file),
it's by far the simplest solution.


# 8738:66bf413b0d5b 30-Sep-2011 Gabe Black <gblack@eecs.umich.edu>

SE/FS: Use the new FullSystem constant where possible.


# 8568:83f728db3332 19-Sep-2011 Gabe Black <gblack@eecs.umich.edu>

MIPS: Get rid of cruft in the fault classes.

Get rid of Fault classes left over from when this file was copied from Alpha,
and rename ArithmeticOverflowFault to be IntegerOverflowFault and get rid of
the old IntegerOverflowFault stub. The Integer version is what's actually in
the manual, but the Arithmetic version had the implementation.


# 8564:f81bcb16fa1b 19-Sep-2011 Gabe Black <gblack@eecs.umich.edu>

MIPS: Get rid of #if style config checks in the ISA description.


# 5268:5bfc53fe60e7 16-Nov-2007 Korey Sewell <ksewell@umich.edu>

go back and fix up MIPS copyright headers


# 5222:bb733a878f85 13-Nov-2007 Korey Sewell <ksewell@umich.edu>

Add in files from merge-bare-iron, get them compiling in FS and SE mode


# 2754:e3d023bc752c 15-Jun-2006 Korey Sewell <ksewell@umich.edu>

Mips Code Cleanup:
Fix some author stuff and copyright dates
Take out full system code

src/arch/mips/isa/base.isa:
src/arch/mips/isa/bitfields.isa:
copyright info
src/arch/mips/isa/decoder.isa:
src/arch/mips/isa/formats/basic.isa:
src/arch/mips/isa/formats/branch.isa:
src/arch/mips/isa/formats/control.isa:
src/arch/mips/isa/formats/fp.isa:
src/arch/mips/isa/formats/int.isa:
src/arch/mips/isa/formats/mem.isa:
src/arch/mips/isa/formats/noop.isa:
src/arch/mips/isa/formats/tlbop.isa:
src/arch/mips/isa/formats/trap.isa:
src/arch/mips/isa/formats/unimp.isa:
src/arch/mips/isa/formats/unknown.isa:
src/arch/mips/isa/formats/util.isa:
src/arch/mips/isa/includes.isa:
src/arch/mips/isa/main.isa:
src/arch/mips/isa/operands.isa:
src/arch/mips/process.cc:
src/arch/mips/regfile/misc_regfile.hh:
src/arch/mips/stacktrace.hh:
copyright 2006
src/arch/mips/isa_traits.cc:
src/arch/mips/isa_traits.hh:
copyright 2006
take out full system
src/arch/mips/regfile/float_regfile.hh:
src/arch/mips/regfile/regfile.hh:
copyright 2006
use FloatRegVal
src/arch/mips/regfile/int_regfile.hh:
copyright 2006
move HI/LO to types.hh
src/arch/mips/types.hh:
copyright 2006

typedef FloatRegVal


# 2706:d88c27f75121 09-Jun-2006 Korey Sewell <ksewell@umich.edu>

Authorship stuff


# 2686:f0d591379ac3 09-Jun-2006 Korey Sewell <ksewell@umich.edu>

Merging in a month of changes

src/arch/isa_parser.py:
Sign extend bit if you read int reg that is greater than default size
src/arch/mips/SConscript:
src/arch/mips/faults.cc:
src/arch/mips/faults.hh:
src/arch/mips/isa/base.isa:
src/arch/mips/isa/bitfields.isa:
src/arch/mips/isa/decoder.isa:
src/arch/mips/isa/formats/basic.isa:
src/arch/mips/isa/formats/branch.isa:
src/arch/mips/isa/formats/formats.isa:
src/arch/mips/isa/formats/fp.isa:
src/arch/mips/isa/formats/int.isa:
src/arch/mips/isa/formats/mem.isa:
src/arch/mips/isa/formats/noop.isa:
src/arch/mips/isa/formats/tlbop.isa:
src/arch/mips/isa/formats/trap.isa:
src/arch/mips/isa/formats/unimp.isa:
src/arch/mips/isa/formats/unknown.isa:
src/arch/mips/isa/formats/util.isa:
src/arch/mips/isa/includes.isa:
src/arch/mips/isa/main.isa:
src/arch/mips/isa/operands.isa:
src/arch/mips/isa_traits.cc:
src/arch/mips/linux/process.cc:
src/arch/mips/linux/process.hh:
src/arch/mips/process.cc:
src/arch/mips/process.hh:
src/arch/mips/regfile/float_regfile.hh:
src/arch/mips/utility.hh:
1 month of changes!
src/arch/mips/isa/formats/control.isa:
control formats
src/arch/mips/isa/formats/mt.isa:
mips mt format
src/arch/mips/utility.cc:
utility functions


# 2665:a124942bacb8 31-May-2006 Ali Saidi <saidi@eecs.umich.edu>

Updated Authors from bk prs info


# 2649:2fb859a457a2 28-May-2006 Ali Saidi <saidi@eecs.umich.edu>

Remove authors from copyright.


# 2632:1bb2f91485ea 22-May-2006 Steve Reinhardt <stever@eecs.umich.edu>

New directory structure:
- simulator source now in 'src' subdirectory
- imported files from 'ext' repository
- support building in arbitrary places, including
outside of the source tree. See comment at top
of SConstruct file for more details.
Regression tests are temporarily disabled; that
syetem needs more extensive revisions.

SConstruct:
Update for new directory structure.
Modify to support build trees that are not subdirectories
of the source tree. See comment at top of file for
more details.
Regression tests are temporarily disabled.
src/arch/SConscript:
src/arch/isa_parser.py:
src/python/SConscript:
Update for new directory structure.