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Verilog-2001 is a significant upgrade from Verilog-95. First, it adds explicit support for (2's complement) signed nets and variables. Previously, code authors had to perform signed operations using awkward bit-level manipulations (for example, the carry-out bit of a simple 8-bit addition required an explicit description of the Boolean algebra ...
Verilog-1995 and -2001 limit reg variables to behavioral statements such as RTL code. SystemVerilog extends the reg type so it can be driven by a single driver such as gate or module. SystemVerilog names this type "logic" to remind users that it has this extra capability and is not a hardware register. The names "logic" and "reg" are ...
The Verilog Procedural Interface (VPI), originally known as PLI 2.0, is an interface primarily intended for the C programming language.It allows behavioral Verilog code to invoke C functions, and C functions to invoke standard Verilog system tasks.
Register-transfer-level abstraction is used in hardware description languages (HDLs) like Verilog and VHDL to create high-level representations of a circuit, from which lower-level representations and ultimately actual wiring can be derived. Design at the RTL level is typical practice in modern digital design.
C to HDL tools convert C language or C-like computer code into a hardware description language (HDL) such as VHDL or Verilog.The converted code can then be synthesized and translated into a hardware device such as a field-programmable gate array.
A binary counter can represent 2 N states, where N is the number of bits in the code, whereas a straight ring counter can represent only N states and a Johnson counter can represent only 2N states. This may be an important consideration in hardware implementations where registers are more expensive than combinational logic.
Increased Code Size: Unrolling increases the number of instructions, leading to larger program binaries. Higher Storage Requirements: The expanded code takes up more memory, which can be problematic for microcontrollers or embedded systems with limited storage. Instruction Cache Pressure: The unrolled loop consumes more space in the instruction ...
ADMS can be used to turn Verilog-A compact models [2] into C code. ADMS interpreter parses a Verilog-AMS file to build a data tree. [ 3 ] XML filters are applied on the tree to generate the output files.