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Verilator is a very high speed open-source simulator that compiles Verilog to multithreaded C++/SystemC. Verilator previously required that testbench code be written as synthesizable RTL, or as a C++ or SystemC testbench, because Verilator did not support behavioral Verilog. These are now supported. Verilog Behavioral Simulator (VBS) GPL
Design at the RTL level is typical practice in modern digital design. [1] Unlike in software compiler design, where the register-transfer level is an intermediate representation and at the lowest level, the RTL level is the usual input that circuit designers operate on.
In computer science, register transfer language (RTL) is a kind of intermediate representation (IR) that is very close to assembly language, such as that which is used in a compiler. It is used to describe data flow at the register-transfer level of an architecture . [ 1 ]
OpenSPARC is an open-source hardware project, started in December 2005, for CPUs implementing the SPARC instruction architecture. The initial contribution to the project was Sun Microsystems' register-transfer level (RTL) Verilog code for a full 64-bit, 32-thread microprocessor, the UltraSPARC T1 processor.
A formal equivalence check can be performed between any two representations of a design: RTL <> netlist, netlist <> netlist or RTL <> RTL, though the latter is rare compared to the first two. Typically, a formal equivalence checking tool will also indicate with great precision at which point there exists a difference between two representations.
The Free Pascal Runtime Library, abbreviated RTL, is Free Pascal's runtime library. The RTL consists of a collection of units that provide components and classes for general programming tasks. It acts as a basis for Free Pascal 's Free Component Library (FCL) and the Lazarus Component Library (LCL).
The converted code can then be synthesized and translated into a hardware device such as a field-programmable gate array. Compared to software , equivalent designs in hardware consume less power (yielding higher performance per watt ) and execute faster with lower latency , more parallelism and higher throughput .
RTL/2 compiles to assembly language and provides the CODE statement to allow including assembly language in RTL/2 source code. This is only available when compiled with a systems programming option (CN:F) The CODE statement takes two operands: the number of bytes used by the code insert and the number of bytes of stack used.