Four-state type
A type whose bits can hold 0, 1, x or z, such as logic or integer.
Open reference →VLSI reference library
Look up a concept, code symbol or debugging topic. Continue into the lesson for examples, practice and the next step in your learning path.
Learning references
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Handle
A variable that refers to a class object, or holds null.
Open reference →Hash
A Perl key-value table such as %count, read one value at a time with $count{key}.
Open reference →Implication
A property operator (|-> or |=>) that checks a consequent only after an antecedent matches.
Open reference →Incremental build
Rebuilding only outputs whose inputs changed, based on file timestamps.
Open reference →Inheritance
Creating a derived class with extends so that it reuses and extends a base class.
Open reference →Inode
Filesystem metadata object referenced by one or more names.
Open reference →Interface
A named bundle of signals, modports and clocking blocks passed as a single port.
Open reference →Kernel
The privileged core that manages processes, memory, devices and filesystems.
Open reference →Liberty file
A .lib file that describes standard cells' function, timing and power for synthesis and timing tools.
Open reference →Mailbox
A FIFO channel for passing items between threads, optionally bounded.
Open reference →Modport
A list of interface signals with directions for one user of the interface.
Open reference →Mount point
A directory at which a filesystem is attached to the directory tree.
Open reference →PATH
An ordered list of directories used by a shell to find executables.
Open reference →Packed array
An array whose dimensions are declared before the name and stored as one contiguous vector.
Open reference →Pattern rule
A Make rule using % to describe how to build a family of targets from matching prerequisites.
Open reference →Phony target
A Make target that names an action rather than a file, declared with .PHONY so it always runs.
Open reference →Polymorphism
Using base-class handles to operate on objects of different derived classes.
Open reference →Process
A running program with a PID, state and resource use.
Open reference →Queue
An ordered, variable-size collection that can be pushed and popped at either end.
Open reference →Build on what you find
Follow the eight-week programme to connect individual concepts with design decisions, simulation, debugging and verification evidence.
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