| podobné slovo | definícia |
autocode
(encz) | autocode,autokód |
autocoder
(encz) | autocoder,autokód |
microcode
(encz) | microcode,mikrokód n: Zdeněk Brož |
microcoded
(encz) | microcoded,mikrokódovaný adj: Zdeněk Brož |
microcodes
(encz) | microcodes,mikrokódy n: pl. Zdeněk Brož |
Apocodeine
(gcide) | Apocodeine \Ap`o*co*de"ine\, n. [Pref. apo- + codeine.] (Chem.)
An alkaloid, C18H19NO2, prepared from codeine. In its
effects it resembles apomorphine.
[Webster 1913 Suppl.] |
microcode
(wn) | microcode
n 1: (computer science) coded instructions that are stored
permanently in read-only memory [syn: firmware,
microcode] |
atlas autocode
(foldoc) | Atlas Autocode
The Autocode for the Ferranti Atlas, which may
have been the first commercial computer with hardware-paged
virtual memory. Whereas other autocodes were basically
assembly languages, Atlas Autocode was high-level and
block-structured, resembling a cross between Fortran and
ALGOL 60. It had call-by value, loops (loop),
declarations, complex numbers, pointers, heap and stack
storage generators, dynamic arrays, and extensible syntax.
(2000-04-03)
|
autocode
(foldoc) | Autocode
1. The assembly language accepted by AUTOCODER.
2. A generic term for symbolic assembly language. Versions
of Autocode were developed for Ferranti Atlas, Titan,
Mercury and Pegasus and IBM 702 and IBM 705.
(2001-05-14)
|
autocoder
(foldoc) | AUTOCODER
Possibly the first primitive compiler. AUTOCODER
was written by Alick E. Glennie in 1952. It translated
symbolic statements into machine language for the
Manchester Mark I computer.
Autocoding later came to be a generic term for {assembly
language} programming.
(1994-11-07)
|
basic autocoder
(foldoc) | BASIC AUTOCODER
Early system on IBM 7070. Listed in CACM 2(5):16 (May
1959).
|
horizontal microcode
(foldoc) | horizontal microcode
Microcode using horizontal encoding.
(1995-04-23)
|
improved mercury autocode
(foldoc) | IMProved Mercury autocode
(IMP) A version of Autocode used to program the
Edinburgh Multi Access System (EMAS), one of the first
operating systems written in a high-level language,
apparently predating Unix.
Luis Damas' Prolog interpreter in IMP for EMAS led to
C-Prolog.
[Papers in J. British Computer Society].
(1996-04-07)
|
manchester autocode
(foldoc) | Manchester Autocode
The predecessor of Mercury Autocode.
["The Programming Strategy Used with the Manchester University
Mark I Computer", R.A. Brooker, Proc IEE 103B Suppl:151-157,
1956].
(2000-10-02)
|
mercury autocode
(foldoc) | Mercury Autocode
Autocode for the Ferranti Mercury machine.
|
microcode
(foldoc) | microcode
microprogramming
A technique for implementing the {instruction
set} of a processor as a sequence of microcode instructions
("microinstructions"), each of which typically consists of a
(large) number of bit fields and the address of the next
microinstruction to execute. Each bit field controls some
specific part of the processor's operation, such as a gate
which allows some functional unit to drive a value onto the
bus or the operation to be performed by the ALU. Several
microinstructions will usually be required to fetch, decode
and execute each machine code instruction
("macroinstruction"). The microcode may also be responsible
for polling for hardware interrupts between each
macroinstruction. Writing microcode is known as
"microprogramming".
Microcode may be classified as "horizontally encoded" or
"vertically encoded". Horizontal microcode is as described
above where there is a fairly direct correspondence between
the bit fields in a microinstruction and the control signals
sent to the various parts of the CPU. Not all combinations of
bits will be valid (e.g. two units driving the bus at once).
Vertical microcode is closer to machine code because a bit
field value may pass through some intermediate combinatory
logic which generates the actual control signals. This allows
a few bits of a microinstruction to determine several control
signals and ensure that only valid combinations of those
signals are generated (e.g. a field may be decoded to determine
which unit drives the bus). The disadvantage with vertical
encoding is that the encoding is usually fixed and takes extra
time compared with horizontal encoding which allows any
combination of signals to be generated and takes no time to
decode.
The alternative to a microcoded processor is a hard-wired
one where the control signals are generated directly from the
bits of the machine code instruction. This is more common
in modern RISC architectures because it is faster.
Microcode is usually stored in ROM chips though some
processors (e.g. the Orion) use fast RAM, making them
dynamically microprogrammable.
(1996-11-26)
|
pseudocode
(foldoc) | pseudocode
A notation resembling a programming language
but not intended for actual compilation. It usually
combines some of the structure of a programming language with
an informal natural language description of the computations
to be carried out. Some CASE systems produce it as a basis
for later hand coding.
(2011-01-29)
|
vertical microcode
(foldoc) | vertical microcode
Microcode using vertical encoding.
(1995-04-23)
|
vocoder
(foldoc) | vocoder
vocoding
Hardware or software which implements a
compression algorithm particular to voice.
For example Qualcomm uses a vocoding algorithm to compresses
voice data in digital communication systems such as wireless
CDMA and Eudora voice attach.
(1998-04-29)
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