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AMD was the first to introduce the instructions that now form Intel's BMI1 as part of its ABM (Advanced Bit Manipulation) instruction set, then later added support for Intel's new BMI2 instructions. AMD today advertises the availability of these features via Intel's BMI1 and BMI2 cpuflags and instructs programmers to target them accordingly.
Simics - CPU and full system simulator framework, building complete models of complex modern hardware. Simh - Simulation of 50+ historic computers including full PDP-11 systems with I/O, in development since the 1960's. CPU-OS Simulator - Integrated RISC type CPU and multithreading operating system educational simulators. Other
In particular, a piece of software that simulates a microprocessor executing a program on a cycle-by-cycle basis is known as cycle-accurate simulator, whereas instruction set simulator only models the execution of a program on a microprocessor through the eyes of an instruction scheduler along with a coarse timing of instruction execution. Most ...
JMAG - simulation software for electric device design and development. Khimera - a chemical kinetics simulation software tool developed by Kintech Lab. Lanner WITNESS - a discrete event simulation platform for modelling processes and experimentation. Lanner L-SIM Server - Java-based simulation engine for simulating BPMN2.0 based process models.
A cycle-accurate simulator is a computer program that simulates a microarchitecture on a cycle-by-cycle basis. In contrast an instruction set simulator simulates an instruction set architecture usually faster but not cycle-accurate to a specific implementation of this architecture; they are often used when emulating older hardware, where time precision is important for legacy reasons.
Simics is a full-system simulator or virtual platform used to run unchanged production binaries of the target hardware. Simics was originally developed by the Swedish Institute of Computer Science (SICS), and then spun off to Virtutech for commercial development in 1998. Virtutech was acquired by Intel in 2010.
ARM Development Studio 5 by ARM Ltd. [3] Atmel Studio [note 2] by Atmel [4] (based on Visual Studio [5] and GNU GCC Toolchain [6]) Code Composer Studio [note 3] by Texas Instruments [7] CoIDE by CooCox [8] (note - website dead since 2018) Crossware Development Suite for ARM by Crossware [9] CrossWorks for ARM by Rowley [10] Dave by Infineon ...
The usual compromise is to use simulation early in the verification process when bugs and fixes are frequent, and prototyping at the end of the development cycle when the design is basically complete and speed is needed to get sufficient testing to uncover any remaining system-level bugs. FPGA prototyping is also popular for testing software.