In computing, an opcode (abbreviated from operation code, also known as instruction machine code, instruction code, instruction syllable, instruction parcel...
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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...
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Opcode Systems, Inc. was founded in 1985 by Dave Oppenheim and based in and around Palo Alto, California, USA. Opcode produced MIDI sequencing software...
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An illegal opcode, also called an unimplemented operation, unintended opcode or undocumented instruction, is an instruction to a CPU that is not mentioned...
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Machine code (redirect from Opcode-level programming)
the numerical machine code and a human-readable version where numerical opcodes and operands are replaced by readable strings (e.g. 0x90 as the NOP instruction...
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Assembly language (redirect from Opcode mnemonics)
uses a mnemonic to represent, e.g., each low-level machine instruction or opcode, each directive, typically also each architectural register, flag, etc....
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instructions. On the processing architecture, a given instruction may specify: opcode (the instruction to be performed) e.g. add, copy, test any explicit operands:...
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X86 instruction listings (redirect from ARPL (opcode))
PREFETCHW, opcode 0F 0D /0 as well as opcodes 0F 0D /2../7 are all documented to be performing prefetch. On Intel processors with PREFETCHW, these opcodes are...
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SIGTRAP. The opcode for INT3 is 0xCC, as opposed to the opcode for INT immediate8, which is 0xCD immediate8. Since the dedicated 0xCC opcode has some desired...
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Metasploit (redirect from Opcode Database)
against a remote target machine. Other important sub-projects include the Opcode Database, shellcode archive and related research. The Metasploit Project...
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