Illegal opcode — An Illegal Opcode, also called an Undocumented Instruction, is an instruction to a CPU that is not mentioned in any official documentation released by the CPU s designer or manufacturer, which nevertheless has an effect. Illegal opcodes were… … Wikipedia
Opcode — In computer science, an opcode (operation code) is the portion of a machine language instruction that specifies the operation to be performed. Their specification and format are laid out in the instruction set architecture of the processor in… … Wikipedia
SIGILL — Infobox Computing signal description = Illegal instruction action = Abnormal termination of the process ILL ILLOPC | illegal opcode ILL ILLOPN | illegal operand ILL ADR | illegal addressing mode ILL ILLTRP | illegal trap ILL PRVOPC | privileged… … Wikipedia
Apple IIe — Mac specs| ProDOS|RAM=64 KB (up to 1 MB+)|RAMtype=| Discontinued=November 1993The Apple IIe is the third model in the Apple II series of personal computers produced by Apple Computer. The e in the name stands for enhanced , referring to the fact… … Wikipedia
Macintosh Toolbox — The Macintosh Toolbox is a set of application programming interfaces with a particular access mechanism. They implement many of the high level features of the Mac OS. The Toolbox is comprised of a number of managers, software components such as… … Wikipedia
Apple IIc — Mac specs| 65C02 CPUspeed=1.023 MHz|OS=ProDOS|RAM=128 KB (up to 1.125 MB)|RAMtype=| Discontinued=August 1988The Apple IIc, the fourth model in the Apple II series of personal computers, was Apple Computer’s first endeavor to produce a portable… … Wikipedia
Zilog Z80 — One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. Produced 1976 Common manufacturer(s) Zilog … Wikipedia
Software cracking — is the modification of software to remove or disable features which are considered undesirable by the person cracking the software, usually related to protection methods: copy protection, trial/demo version, serial number, hardware key, date… … Wikipedia
MOS Technology 6502 — The MOS Technology 6502 is an 8 bit microprocessor that was designed by Chuck Peddle for MOS Technology in 1975. When it was introduced, it was the least expensive full featured CPU on the market by a considerable margin, costing less than one… … Wikipedia
Motorola 68000 — This article is about the CPU. For the computer, see Sharp X68000. Motorola 68000 Designer Motorola Bits 16/32 bit Introduced 1979 Design CISC Endianness Big … Wikipedia
