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Once all ISAs are converted, the base StaticInst class will be able to drop its local arrays, and will no longer need to know what the global maximum number of source or destination registers is for a given instruction. Most of the convertion was very simple and just involved adding tags to declare and install the register arrays in all the class definitions. Since SPARC has a relatively simple ISA definition, there weren't many places that needed to be updated. The exception was the BlockMem template, which was declaring the microop classes within the body of the macroop. That was ok when those declarations didn't need anything other than the name of their parent, but now they also need to know how big to declare their arrays based on their actual implementation. To facilitate that, and to significantly streamline the definition of the macroop class, the microop class definitions were moved to their own template, and only the declaration was left in the parent class. Change-Id: I09e6b1d1041c6a0aeaee63ce5f9a18cf482b6203 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/36879 Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, SWIG, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of ARM, NULL, MIPS, POWER, SPARC, or X86. This will build an optimized version of the gem5 binary (gem5.opt) for the the specified architecture. See http://www.gem5.org/documentation/general_docs/building for more details and options. The basic source release includes these subdirectories: - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you will need compiled system firmware (console and PALcode for Alpha), kernel binaries and one or more disk images. If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.