- In computing, an
opcode (abbreviated from
operation code) is an
enumerated value that
specifies the
operation to be performed.
Opcodes are emplo**** in...
- many
illegal opcodes, on many processors, is just a trap to an
error handler. However, some
processors that trap for most
illegal opcodes do not do so...
- An
opcode table (also
called an
opcode matrix) is a
visual representation of all
opcodes in an
instruction set. It is
arranged such that each axis of...
-
Opcode Systems, Inc. was
founded in 1985 by Dave
Oppenheim and
based in and
around Palo Alto, California, USA.
Opcode produced MIDI
sequencing software...
- PREFETCHW,
opcode 0F 0D /0 as well as
opcodes 0F 0D /2../7 are all do****ented to be
performing prefetch. On
Intel processors with PREFETCHW,
these opcodes are...
- ****embly,
numerical opcodes and
operands are
replaced with
mnemonics and labels. For example, the x86
architecture has
available the 0x90
opcode; it is represented...
- the
semantics of a few of the
opcodes, and
SCHIP continued to use
those new
semantics in
addition to
changing other opcodes. Many
online resources about...
- In each case, the MOV
mnemonic is
translated directly into one of the
opcodes 88-8C, 8E, A0-A3, B0-BF, C6 or C7 by an ****embler, and the
programmer normally...
-
multiple simultaneous opcodes and
operands are
specified in a
single instruction. Some
exotic instruction sets do not have an
opcode field, such as transport...
-
unimplemented opcodes with
specially written software intercepted at the BRK instruction's 0xFFFE vector. All of the
undefined opcodes have been replaced...
