Should enable implementation of split-phase timing loads
with new memory model.
May create slight timing differences under FullCPU, as I
believe we were not handling software prefetches correctly
before when the split MemAcc/Exec model was used. I haven't
looked into this in any detail though.
arch/alpha/isa/decoder.isa:
HwLoadStore format split into separate HwLoad and
HwStore formats.
Copy instructions now fall under MiscPrefetch format.
Mem_write_result is now just write_result in store
conditionals.
arch/alpha/isa/mem.isa:
Split MemAccExecute and LoadStoreExecute templates
into separate templates for loads and stores; now
that memory operands are handled differently from
registers, it's impossible to have a single template
serve both.
Also unified the handling of "regular" prefetches
(loads to r31) and "misc" prefetches (e.g., wh64)
under the new scheme. It looks like SW prefetches
were not handled correctly in FullCPU up til now,
since we generated an execute() method for the outer
instruction but didn't generate a proper method for
MemAcc::execute() (instead getting a default no-op
method for that).
arch/alpha/isa/pal.isa:
Split HwLoadStore into separate HwLoad and HwStore
formats to select proper template (see change to
mem.isa in this changeset).
arch/isa_parser.py:
Stop trying to treat memory operands like register
operands, since we never used them in a uniform way
anyway, and it made it impossible to do split-phase
loads as needed for the new CPU model. Now there's no
more 'op_mem_rd', 'op_nonmem_rd', etc.: 'op_rd' just does
register operands, and the template code is responsible
for formulating the call to the memory system. Right now
the only thing exported by InstObjParams is a new attribute
'mem_acc_size' which gives the memory access size in bits,
though more attributes can be added if needed.
Also moved code in findOperands() method to
OperandDescriptorList.__init__(), which is where it belongs.
--HG--
extra : convert_revision : 6d53d07e0c5e828455834ded4395fa40f9146a34
=================================================
-every MIPS32 ISA is represented with some type
of code block.
-any instruction that doesnt have a code block
would be of format WarnUnimpl. Examples of the
ones I am waiting on further info to implement
are the TLB register insts, memory consistency
instructions (ll,sc,etc.) and software debug
insts.
--HG--
extra : convert_revision : 4a26c72e4fa1f63b8689fe2631a7508daf660969
(thanks to Gabe's include feature!).
arch/alpha/isa/main.isa:
Split out into multiple .isa files.
--HG--
extra : convert_revision : 30d8edf74ea194d4a208febf1e66edc72a7dbd5d
arch/isa_parser.py:
Clean up ##include code a bit.
arch/sparc/isa/formats.isa:
arch/sparc/isa/main.isa:
Fix include paths.
--HG--
extra : convert_revision : 0689963c2948e5f1088ecbf2cf6018d29bdaceff
arch/isa_parser.py:
Get rid of "munged name" for operands in C++ code.
That is, "Ra.uq" will now be known in the C++ as "Ra"
rather than "Ra_uq". It wasn't legal to use different
type extensions for the same operand at the same time
anyway, and now it will be easier to refer to explicit
operands in template code if necessary.
--HG--
extra : convert_revision : 9ff41e0201aeefe761743084ecdb34f4b9c84fdb
SConscript:
Changed the ISAPath function to take 5 arguments to work with scons 0.97.
--HG--
extra : convert_revision : 34fbe131aec9349631b5026d839563380623f3fd
arch/mips/isa/decoder.isa:
Code for di,ei,seb,seh,clz,and clo ....
Every instruction has a format now (of course these are initial formats are still subject to change!)
arch/mips/isa/formats/branch.isa:
Format Branch in MIPS similar to Alpha Format
--HG--
extra : convert_revision : 2118a1d9668610b1e9f1dea66d878b7b36c1ac7e
with isPowerOf2() from intmath.hh.
base/sched_list.hh:
Use isPowerOf2() from intmath.hh.
--HG--
extra : convert_revision : 7b2409531d8ed194aa7e1cfcd1ecb8460c797a16
arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_tru64_process.cc:
Replaced the namespace declaration with including arch/alpha/isa_traits.hh
--HG--
extra : convert_revision : 07cb73a9f30f0e165809668f9baff6a3e3f94580
SConscript:
Moved some files out of targetarch. The either no longer need to be there, never needed to be there, or should be referred to directly in arch/alpha due to there strictly alpha content.
arch/alpha/isa_traits.hh:
Added alpha's endianness to it's isa_traits.hh
arch/mips/isa_traits.hh:
Added MIPS endianness to it's isa_traits.hh
arch/sparc/isa_traits.hh:
Added SPARCs endianess to it's isa_traits.hh
build/SConstruct:
Added MIPS as a valid architecture
cpu/exec_context.hh:
Included arch/isa_traits.hh to bring in the endianness of the system.
cpu/o3/alpha_cpu.hh:
Included arch/isa_traits.hh to bring in the systems endianness, and removed the hardcoding of little endianness
cpu/o3/fetch_impl.hh:
kern/freebsd/freebsd_system.cc:
Included arch/isa_traits.hh to bring in the systems endianness, and removed the hardcoding to little endianness.
sim/system.cc:
Included arch/isa_traits.hh to bring in the systems endianness, and removed the hardcoding to little endian.
--HG--
extra : convert_revision : b1ab34b7569db531cd1c74f273b24222e63f9007
The extra class is needed because of the necessisty of an immediate member variable.
Also, added some 'very modest' python code to choose between the IntOp and
the IntImmOp based on the instruction name ...
--HG--
extra : convert_revision : f109c12418202a99b40e270360134e8335739836
arch/mips/isa/formats/int.format:
Looks like Integer Ops with Immediates may not need their own separate class because all those instructions are distinct from
their reg-reg counterparts
--HG--
rename : arch/mips/isa/bitfields.def => arch/mips/isa/bitfields.isa
rename : arch/mips/isa/decoder.def => arch/mips/isa/decoder.isa
rename : arch/mips/isa/formats.def => arch/mips/isa/formats.isa
rename : arch/mips/isa/includes.h => arch/mips/isa/includes.isa
rename : arch/mips/isa/operands.def => arch/mips/isa/operands.isa
extra : convert_revision : 8e354b4232b28c0264d98d333d55ef8b5a6589cc
Output,Format, & Template code needs to be adjusted to correctly take these "decoder.h" inputs ...
--HG--
extra : convert_revision : 3dcde1f2f587e2766fd61231a93d34d1d7727356
arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_tru64_process.cc:
Added the endianness namespace. This may change.
cpu/exec_context.hh:
Changed the include path for byteswap, and forced LittleEndianness for lack of a better solution.
cpu/o3/alpha_cpu.hh:
Forced LittleEndianness, for lack of a better solution.
cpu/o3/alpha_cpu_impl.hh:
Cleared away some commented out code.
cpu/o3/fetch_impl.hh:
Changed the include patch for byteswap, and forced LittleEndianness for lack of a better solution.
cpu/simple/cpu.cc:
Added an include for byteswap.hh, and fixed the SimpleCPU to LittleEndian. This cpu only does alpha, so that's fine.
dev/disk_image.cc:
Changed the include path of byteswap.hh
kern/freebsd/freebsd_system.cc:
kern/linux/linux_system.cc:
Added an include for byteswap.hh, and forced LittleEndianness for lack of a better solution.
sim/system.cc:
Forced LittleEndianness for lack of a better solution.
--HG--
extra : convert_revision : b95d3e1265a825e04bd77622a3ac09fbac6bd206
of tabs so using different editors is consistent
util/emacs/m5-c-style.el:
Default to inserting spaces instead of tabs so using different
editors is consistent
--HG--
extra : convert_revision : 719e5e980e088b0f4787b198de18cddceabd0140
All of the code literals are empty as of now. As much as possible instructions were organized into relevant "formats"
and also references to the tables I used from the MIPS manual were noted via appropriate comments.
--HG--
extra : convert_revision : 9b44fb40e900061a4cdb290b6a5aaceb9750ae13
arch/mips/isa_desc/bitfields.h:
Change from table names to actual bitfield name ...
--HG--
extra : convert_revision : ead69065eb9c3e9c4ea4f67587a6fb07091898ed
- this will decode the instructions but not doing anything to create the C++ object yet
(the 1st of many steps!)
arch/mips/isa_desc/bitfields.h:
initial bitfield constants ... copied some from original alpha bitfields
arch/mips/isa_desc/decoder.h:
decoder function skeleton pt.1
- this will decode the instructions but not doing anything to create the C++ object yet
(the 1st of many steps!)
--HG--
extra : convert_revision : 2b9a0f8160c78b17f9d3d5eaf5af5a4d2f074761
SConscript:
There is a new SConscript in the arch/alpha directory which has the alpha specific files. To add files for an arch, a similar file should be created.
arch/isa_parser.py:
The isa parser now supports include directives. These are done with ##include
build/SConstruct:
The target directory is passed on so that the architecture specific SConscript can have it. Also, sparc was added as a valid architecture type.
arch/alpha/SConscript:
This SConscript adds the alpha specific source
arch/sparc/isa_desc/operands.h:
This sets up the operand types that the sparc isa uses
arch/sparc/isa_traits.cc:
Implementation of sparc specific things, like a register file with windows
build/build_options/default/SPARC_SE:
The default options for a sparc syscall emulation build.
--HG--
extra : convert_revision : 1afedae61dc8cae0d59d3bf1d41420d929be2efd
arch/sparc/isa_desc/bitfields.h:
This file defines the bit fields used by the isa description system
arch/sparc/isa_desc/decoder.h:
This file describes the decoder for the isa description system
arch/sparc/isa_desc/formats.h:
This file declares the instruction formats
arch/sparc/isa_desc/formats/basic.format:
This file implements the "basic" instruction format
arch/sparc/isa_desc/formats/branch.format:
This file implements the "branch" instruction format
arch/sparc/isa_desc/formats/integerop.format:
This file implements the "integerop" instruction format
arch/sparc/isa_desc/formats/mem.format:
This file implements the "mem" instruction format
arch/sparc/isa_desc/formats/noop.format:
This file implements the "noop" instruction format
arch/sparc/isa_desc/formats/trap.format:
This file implements the "trap" instruction format
arch/sparc/isa_desc/includes.h:
This file is all of the inclues that are used by the isa description system
--HG--
extra : convert_revision : 12a2ffe949317b8b57d83263a4261131b9432c2a
needed in a few more cases.
base/intmath.hh:
align arg to roundUp should be int, not template class
sim/process.cc:
sim/syscall_emul.hh:
No need for explicit template arg now that roundUp is fixed.
--HG--
extra : convert_revision : f9f4639e022acb9f427e8d30d81c782504437c53
