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2007-04-14Add support for microcode and pull out the special branch delay slot ↵Gabe Black
handling. Branch delay slots need to be squash on a mispredict as well because the nnpc they saw was incorrect. --HG-- extra : convert_revision : 8b9c603616bcad254417a7a3fa3edfb4c8728719
2007-04-14Make register indexes larger so they can actually hold all the legal values. ↵Gabe Black
Oops! --HG-- extra : convert_revision : 7689b2e1f7468e4acb8be0f242f74002c79e7960
2007-04-14Make the fsr a serializing register. Other control registers probably need ↵Gabe Black
this as well. --HG-- extra : convert_revision : edd3f9a83cc2722b6e0eff0eff4a8e034b0f6ec6
2007-04-13Remove most of the special handling for delay slots since they have to be ↵Gabe Black
squashed anyway on a mispredict. This is because the NNPC value they saw when executing was incorrect. --HG-- extra : convert_revision : b42c4eb28b4fbba66c65cbd0a5033bf886c1532d
2007-04-11Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec --HG-- extra : convert_revision : 50102b96ba07b2b132d649a111268ee1f08c2147
2007-04-11Make trying to execute macroops fail with a better error message.Gabe Black
--HG-- extra : convert_revision : e81c0337d6db4b5a33381ed19686750bbb9d9178
2007-04-11Create a filter and a union to translate the SPARC instruction ↵Gabe Black
implementations from using doubles to using concatenated singles. --HG-- extra : convert_revision : 609ba35bbb13cbd1998e93957cb051461442d1f9
2007-04-10Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86 --HG-- extra : convert_revision : c5275ef3e53393496a2ebe05b2f516884bb392f9
2007-04-10Even if you don't want to fetch more bytes, make sure you handle a fault.Gabe Black
--HG-- extra : convert_revision : cfebc877b9b2ebc8927ce8267867eb40ad6d59c6
2007-04-10Include the new GenFault microop.Gabe Black
--HG-- extra : convert_revision : 6c943329525d2a01f35ad5e56ff91505d5011d7b
2007-04-10Reworked x86 a bitGabe Black
--HG-- extra : convert_revision : def1a30e54b59c718c451a631a1be6f8e787e843
2007-04-10Changed some instruction names to be in all caps, and "implemented" move to ↵Gabe Black
test the stub code for instructions. --HG-- extra : convert_revision : a377daf20545dfcbb0f97d8cafbe3d68416dc4b2
2007-04-10Added a class which lets you manipulate all the strings returned by the ↵Gabe Black
parser as a unit. --HG-- extra : convert_revision : eec4b188b44b80cee643542bbd1aaa139cbc4ef0
2007-04-10Fix up the base x86 fault object and create a fault to be generated by ↵Gabe Black
unimplemented instructions in their microcode. This is useful if certain variations of an instruction are implemented, but, for instance, it's memory based versions aren't. --HG-- extra : convert_revision : 24e69c5a6a0af2d0cf67e858a051ae6624bb300f
2007-04-10Fixed a compile error.Gabe Black
--HG-- extra : convert_revision : 70221349a7100c89be0d03210f3b04950370583f
2007-04-09Comment out the remote gdb object for SE mode.Gabe Black
--HG-- extra : convert_revision : a582684f3a2dd1d1d0d8b93a9e213d9108491535
2007-04-09Merge ktlim@zizzer:/bk/newmemKevin Lim
into zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head --HG-- extra : convert_revision : a250eed999be9b8acd6f420fdfe8f1b02905beb1
2007-04-09Fix bug when blocking due to no free registers.Kevin Lim
--HG-- extra : convert_revision : a1a218d3294515184689041487057495223360b7
2007-04-09Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86 --HG-- extra : convert_revision : 1396ed5b264d29377ef9793a763225a93181f65f
2007-04-09Accidentally didn't save when moving the specialization code out of here.Gabe Black
--HG-- extra : convert_revision : 1ffe0c497e10fef1eb84b3c97c00b98d820fbb97
2007-04-08Take into account that the flattened integer register space is a different ↵Gabe Black
size than the architected one. Also fixed some asserts. --HG-- extra : convert_revision : 26e7863919d1b976ba8cad747af475a6f18e9440
2007-04-08Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec --HG-- extra : convert_revision : dba3542ab73cc8ae46347a14ae4c133f1276011c
2007-04-08Get the "hard" SPARC instructions working in o3. I don't like that the ↵Gabe Black
IsStoreConditional flag needs to be set for them because they aren't store conditional instructions, and I should fix the format code which is not handling the opt_flags correctly. --HG-- extra : convert_revision : cfd32808592832d7b6fbdaace5ae7b17c8a246e9
2007-04-06Move the instruction specialization stuff out of the microassembler file, ↵Gabe Black
and added some comments to main.isa --HG-- extra : convert_revision : 1534ae7d5a9e95bf662d79a04f9286c227541c6c
2007-04-06Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86 --HG-- extra : convert_revision : 8e624bb95cb9f478ca7ac1dbbd64e20674e3e224
2007-04-06Consolidated the microcode assembler to help separate it from more ↵Gabe Black
x86-centric stuff. --HG-- extra : convert_revision : 5e7e8026e24ce44a3dac4a358e0c3e5560685958
2007-04-06Refactored the x86 isa description some more. There should be more ↵Gabe Black
seperation between x86 specific parts, and those parts which are implemented in the isa description but could eventually be moved elsewhere. --HG-- rename : src/arch/x86/isa/formats/macroop.isa => src/arch/x86/isa/macroop.isa extra : convert_revision : 5ab40eedf574fce438d9fe90e00a496dc95c8bcf
2007-04-06Clean up the code a little, fix (I think) a perceived problem with immediate ↵Gabe Black
sizes, and sign extend the 32-bit-acting-like-64-bit-immediates. --HG-- extra : convert_revision : e59b747198cc79d50045bd2dc45b2e2b97bbffcc
2007-04-06Add in a stub merging functionGabe Black
--HG-- extra : convert_revision : 15e3cdb4ebcd31bc44204687ba59dde00c56c6be
2007-04-06Clean up the macroop code.Gabe Black
--HG-- extra : convert_revision : 3cf83c3e038fece6190dbb91f56deb0498c9a70d
2007-04-06Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec --HG-- extra : convert_revision : b7e89d32df946ea24c438292308f5fc8248f8bd9
2007-04-05Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86 --HG-- extra : convert_revision : efdbf9787383dc1df544b7276f8120285e69bf69
2007-04-04The process of going from an instruction definition to an instruction to be ↵Gabe Black
returned by the decoder has been fleshed out more. The following steps describe how an instruction implementation becomes a StaticInst. 1. Microops are created. These are StaticInsts use templates to provide a basic form of polymorphism without having to make the microassembler smarter. 2. An instruction class is created which has a "templated" microcode program as it's docstring. The template parameters are refernced with ^ following by a number. 3. An instruction in the decoder references an instruction template using it's mnemonic. The parameters to it's format end up replacing the placeholders. These parameters describe a source for an operand which could be memory, a register, or an immediate. It it's a register, the register index is used. If it's memory, eventually a load/store will be pre/postpended to the instruction template and it's destination register will be used in place of the ^. If it's an immediate, the immediate is used. Some operand types, specifically those that come from the ModRM byte, need to be decoded further into memory vs. register versions. This is accomplished by making the decode_block text for these instructions another case statement based off ModRM. 4. Once all of the template parameters have been handled, the instruction goes throw the microcode assembler which resolves labels and creates a list of python op objects. If an operand is a register, it uses a % prefix, an immediate uses $, and a label uses @. If the operand is just letters, numbers, and underscores, it can appear immediately after the prefix. If it's not, it can be encolsed in non nested {}s. 5. If there is a single "op" object (which corresponds to a single microop) the decoder is set up to return it directly. If not, a macroop wrapper is created around it. In the future, I'm considering seperating the operand type specialization from the template substitution step. A problem this introduces is that either the template arguments need to be kept around for the specialization step, or they need to be re-extracted. Re-extraction might be the way to go so that the operand formats can be coded directly into the micro assembler template without having to pass them in as parameters. I don't know if that's actually useful, though. src/arch/x86/isa/decoder/one_byte_opcodes.isa: src/arch/x86/isa/microasm.isa: src/arch/x86/isa/microops/microops.isa: src/arch/x86/isa/operands.isa: src/arch/x86/isa/microops/base.isa: Implemented polymorphic microops and changed around the microcode assembler syntax. --HG-- extra : convert_revision : e341f7b8ea9350a31e586a3d33250137e5954f43
2007-04-04Fix a regular expression problem when recognizing labels for string ↵Gabe Black
substitution. --HG-- extra : convert_revision : ba398e1b434efda28882f159d5a4419302276371
2007-04-04Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-o3-spec --HG-- extra : convert_revision : 81269f094834f43b4e908321bfce2e031b39d2a4
2007-04-04Updates for other ISA cpu_builders.Kevin Lim
--HG-- extra : convert_revision : b02736c627bb9dcf87463a9133e04369b9f8fae2
2007-04-04Merge ktlim@zizzer:/bk/newmemKevin Lim
into zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head --HG-- extra : convert_revision : 7181d8c2ee673322372484cf288a94ebd91b5265
2007-04-04Pass ISA-specific O3 CPU as a constructor parameter instead of using setCPU ↵Kevin Lim
functions. src/cpu/o3/alpha/cpu_impl.hh: Pass ISA-specific O3 CPU to FullO3CPU as a constructor parameter instead of using setCPU functions. --HG-- extra : convert_revision : 74f4b1f5fb6f95a56081f367cce7ff44acb5688a
2007-04-04Merge zizzer:/bk/newmemAli Saidi
into zeep.pool:/z/saidi/work/m5.newmem --HG-- extra : convert_revision : be37463ea3ca38ef02ae0b82da0752f240a530d0
2007-04-04The MemoryObject tha owns a port should delete it if it so chooses when ↵Ali Saidi
deletePortRefs() is called on it with that port as a parameter. In this way a MemoryObject can keep a functional port around and give it to anyone who wants to do functional accesses rather than creating a new one each time. src/mem/bus.cc: src/mem/bus.hh: src/mem/cache/cache_impl.hh: only keep around one func port we give to anyone who wants it. Otherwise we can run out of port ids reasonably quickly if a lot of functional accesses are happening (e.g. remote debugging, dprintk, etc) --HG-- extra : convert_revision : 6a9e3e96f51cedaab6de1b36cf317203899a3716
2007-04-04Reworking how x86's isa description works. I'm adopting the following ↵Gabe Black
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
2007-04-04Make "Name" really be the same as "name" with only the first letter ↵Gabe Black
capitalized. Before, it had the first letter capitalized but all the others lower case --HG-- extra : convert_revision : bcbb28f2bf268765c1d37075a4417a4a6c1b9588
2007-04-04Made x86 ExtMachInsts distinguishable from each other by defining a real == ↵Gabe Black
and a real hash function. --HG-- extra : convert_revision : 30f29a36f6ab44e67e62aaf81b685fbe1267c746
2007-04-04Added all the different variations of the register names.Gabe Black
--HG-- extra : convert_revision : ff06bdca556a5e1a0dfe7978575c2277c30c002a
2007-04-04Merge ktlim@zizzer:/bk/newmemKevin Lim
into zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/head --HG-- extra : convert_revision : 4a8cbb65b19636c31b5c6fd5f24c90f8f2148ed1
2007-04-03Made the "data" field of store queue entries into a character array. It's ↵Gabe Black
sized to match an IntReg which was what it used to be, but we might want to make it something architecture independent. All data is now endian converted before entering the store queue entries which simplifies store to load forwarding in "trans endian" simulations, and makes twin memory ops work. src/cpu/o3/lsq_unit.hh: src/cpu/o3/lsq_unit_impl.hh: fixed twin memory operations. --HG-- extra : convert_revision : 8fb97f98e285cd22413e06e146fa82392ac2a590
2007-04-03Fix a memory leak. Hopefully this fixes the longer running benchmarks.Kevin Lim
--HG-- extra : convert_revision : 89eff82642ff181a9b95c77c4d2bf620ca837113
2007-04-03Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into ahchoo.blinky.homelinux.org:/home/gblack/m5/newmem-x86 --HG-- extra : convert_revision : 7be8ebe55a7b11552d78701520f93aa86db1e501
2007-04-03A batch of changes and fixes. Macroops are now generated automatically, ↵Gabe Black
multiops do alot more of what they're supposed to (excluding memory operands), and microops are slightly more implemented. --HG-- extra : convert_revision : 518059f47e11df50aa450d4a322ef2ac069c99c9
2007-04-03Zero out ModRM if the byte isn't there, and fix some displacement size stuff.Gabe Black
--HG-- extra : convert_revision : f43abf33a223a665b30098c63011fb162200d5e6
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 19:28:41 +0000