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Dynamic and Static sensitivities used to be represented by the same classes, even though they're (almost) disjoint in how they worked. Also timeouts, which can be used alongside dynamic sensitivities, were handled by the sensitivities themselves. That meant that the sensitivity mechanism had to mix in more types of behaviors, increasing complexity. Also, the non-standard timed_out function Accellera includes is harder to implement if the path for timeouts and regular sensitivities are mixed together. This change splits up dynamic and static sensitivities and splits out timeouts. It also immitates the ordering Accellera uses when going through sensitivities for an event. Static sensitivities are triggered first in reverse order (why?), and then dynamic sensitivities are triggered in what amounts to reverse order. To delete a sensitivity which has been handled, it's swapped with the one in the last position, and then the vector is truncated to drop it at the end. This has the net effect of stirring the dynamic sensitivities, and isn't easily immitated using a different approach, even if other approaches would be more straightforward. Double check addSensitivity for event.hh Change-Id: I1e73dce386b95f68e9d6737deb8bed70ef717e0d Reviewed-on: https://gem5-review.googlesource.com/c/12805 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@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/Introduction, and for more information about building the simulator and getting started please see http://www.gem5.org/Documentation and http://www.gem5.org/Tutorials. 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/Dependencies 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 ALPHA, 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/Build_System for more details and options. With the simulator built, have a look at http://www.gem5.org/Running_gem5 for more information on how to use gem5. 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. Please see the gem5 download page for these items at http://www.gem5.org/Download If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.