Words starting with registeroff
Maybe these words will be useful:
- register transfer language — (RTL) 1. A kind of hardware description language (HDL) used in describing the registers of a computer or digital electronic system, and the way in which data is transferred between them. 2. An intermediate code for a machine with an infinite number of registers, used for machine-independent optimisation. RTL was developed by Chris Fraser <[email protected]> and J. Davidson <[email protected]> at the University of Arizona in the early 1980s. RTL is used by the GNU C compiler, gcc and by Davidson's VPCC (Very Portable C compiler).
- register allocation — (compiler, algorithm) The phase of a compiler that determines which values will be placed in registers. Register allocation may be combined with register assignment. This problem can be shown to be isomorphic to graph colouring by relating values to nodes in the graph and registers to colours. Values (nodes) which must be valid simultaneously are linked by edges and cannot be stored in the same register (coloured the same). See also register dancing and register spilling.
- register assignment — (compiler, algorithm) The phase of a compiler that determines which register to use for each program value selected during register allocation.
- register dancing — Many older processor architectures suffer from a serious shortage of general-purpose registers. This is especially a problem for compiler-writers, because their generated code needs places to store temporaries for things like intermediate values in expression evaluation. Some designs with this problem, like the Intel 80x86, do have a handful of special-purpose registers that can be pressed into service, providing suitable care is taken to avoid unpleasant side effects on the state of the processor: while the special-purpose register is being used to hold an intermediate value, a delicate minuet is required in which the previous value of the register is saved and then restored just before the official function (and value) of the special-purpose register is again needed.
- register set — All a processor's registers. The size and arrangement of a processor's register set is one of the crucial factors in its performance.
- register spilling — (programming, compiler) (By analogy with spilling the contents of an overfull container) When a compiler is performing the register allocation phase of generating machine code and there are more live variables than the machine has registers and it has to transfer or "spill" some variables from registers to memory.
- registered port — (networking) Any TCP or UDP port with a number in the range 1025 to 65535 (i.e. not a well-known port) that is registered with IANA.
- registered charity — official aid organization
- registered company — a company which has officially registered its business