LYCOS RETRIEVER 
Zilog Z80
built 642 days ago
The Zilog Z80 is an 8-bit microprocessor designed and sold by Zilog from July 1976 onwards. It was widely used both in desktop and embedded computer designs as well as for military purposes. The Z80 and its derivatives and clones make up one of the most commonly used CPU families of all time, and, along with the MOS Technology 6502 family, dominated the 8-bit microcomputer market from the late 1970s to the mid-1980s.
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The Zilog Z80 is an 8-bit microprocessor introduced in July 1976. It was widely used both in desktop and embedded computer designs as well as for defense purposes, and is one of the most popular CPUs of all time. It was designed (by Federico Faggin and Masatoshi Shima) to be binary compatible with the Intel 8080 so that most 8080 code could run unmodified on it, notably the CP/M operating system.
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An early OS for microcomputer by Gary Kildall of Digital Research for Intel 8080 and Zilog Z80 based 8-bit computers. Actually, when Kildall started writing CP/M, in 1973-4, he didn't have an 8080 system; the first versions were tested on an 8080 emulator for PDP systems. In addition to CP/M-80, DR ... created CP/M-86 (works on modern wintel PCs), CP/M-68k (for MC68000 systems), CP/M-Z8k (for Zilog Z8000 systems), and MP/M (a multitasking version), among others.
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SDCC is a [R]etargettable, optimizing ANSI - C compiler that targets the Intel 8051, Maxim 80DS390, Zilog Z80 and the Motorola 68HC08 based MCUs. Work is in progress on supporting the Microchip PIC16 and PIC18 series. SDCC is Free Open Source Software, distributed under GNU General Public License (GPL).
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ANSI - C compiler that targets the Intel 8051, Maxim 80DS390, Zilog Z80 and the Motorola 68HC08 based MCUs. Work is in progress on supporting the Microchip PIC16 and PIC18 series. SDCC is Free Open Source Software, distributed under GNU General Public License (GPL).
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Zilog licensed the Z80 core to any company wishing to make the device royalty free, though many East European and Russian manufacturers made unlicensed copies. This enabled a small company's product to gain acceptance in the world market since second sources from far larger companies such as Toshiba started to manufacture the device. Consequently Zilog has made less than 50% of the Z80s since its conception.
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