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Another difference between simulation and acceleration and emulation is a consequence of accelerators using hardware for implementation – they have only two logic states – acting the way the silicon will when fabricated. This implies: They are not useful for analyzing X-state initialization.
Emulation addresses the original hardware and software environment of the digital object, and recreates it on a current machine. [9] The emulator allows the user to have access to any kind of application or operating system on a current platform, while the software runs as it did in its original environment. [10]
Xilinx Simulator (XSIM) comes as part of the Vivado design suite. It is a compiled-language simulator that supports mixed language simulation with Verilog, SystemVerilog, VHDL and SystemC language. It supports standard debugging tool such as step through code, breakpoints, cross-probing, value probes, call stack and local variable Window.
Network emulation is the act of testing the behavior of a network (5G, wireless, MANETs, etc) in a lab. A personal computer or virtual machine runs software to perform the network emulation; a dedicated emulation device is sometimes used for link emulation. Networks introduce delay, errors, and drop packets.
Full system simulation with optional component virtualization Software development (early, embedded), advanced debug for single and multicore software, compiler and other tool development, computer architecture research, hobbyist Depends on target architecture (full and slow hardware emulation for guests incompatible with host) [citation needed]
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.
Behavioral simulation – high-level simulation of a design's architectural operation, accurate at cycle-level or interface-level. Hardware emulation – Use of special purpose hardware to emulate the logic of a proposed design. Can sometimes be plugged into a system in place of a yet-to-be-built chip; this is called in-circuit emulation.
Emulator Latest version Released Guest emulation capabilities Host Operating System License Bochs: 2.8 March 10, 2024: x86 PC, x86-64 PC: Cross-platform: Open source: QEMU: 9.2.0 December 10, 2024: x86-64 PC, various platforms Cross-platform: GPL: Q: 0.9.1d118 x86-64 PC, various platforms OS X: Open source: SPC/AT: 0.97 March 10, 2014: x86-64 ...