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	ZILOG Z80 - Definition
		Zilog Z8, Zilog Z8000, Zilog Z80000, Zilog Z80A
		The Z80 was a much improved Intel 8080 (as was the Intel 8085).
		The Zilog Z280 was an enhanced version with an MMU and many new op codes.
	www.hyperdictionary.com /computing/zilog+z80 (275 words)

	Zilog Z80 - Wikipedia, the free encyclopedia
		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 6502 family, dominated the 8-bit microcomputer market from the late 1970s to the mid-1980s.
		The Z80 was also used in the Norwegian Tiki 100 computers, which were the computers of choice in Norwegian primary schools during the late 1980s.
		Z80 processors are used in industrial programmable logic controllers (PLCs), both as the main processor and for auxiliary functions such as analog input/output modules or for communication processors.
	en.wikipedia.org /wiki/Zilog_Z80 (2629 words)

	ZiLOG - Wikipedia, the free encyclopedia
		ZiLOG, often seen as Zilog, is a manufacturer of 8-bit CPUs, and is most famous for its Intel 8080-compatible Z80 series.
		Zilog was incorporated in California in 1974 by Federico Faggin, who left Intel after working on the 8080, and the Z80 was a vast improvement over it (it was faster, etc.).
		After the Z80 Zilog introduced 16-bit and 32-bit processors, but these were not particularly successful, and the company refocused on the microcontroller market, producing both basic CPUs and application-specific integrated circuits/standard products (ASICs/ASSPs) built around a CPU core.
	en.wikipedia.org /wiki/Zilog (263 words)

	Zilog Z80 - Wikipedia
		The Zilog Z80 is an 8-bit CPU designed and manufacted by Zilog.
		The Z80 was designed to be binary compatible with the Intel 8080 so that most 8080 code could run unmodified on the Z80.
		Z80 systems were in general more powerful and had more powerful facilities than 8080 systems so this option was popular.
	nostalgia.wikipedia.org /wiki/Z80 (185 words)

	Zilog Z80
		The Z80 was designed to be binary compatible with the Intel 8080 so that most 8080 code could run unmodified on it, notably the CP/M operating system.
		The Z80 offered three real improvements over the 8080: a built-in memory controller for DRAM that would otherwise have to be provided by external circuitry, a much lower price, and a limited ability for SIMD (Single Instruction, Multiple Data) with block move and copy instructions.
		The Z80 quickly took over from the 8080 in the market, and became the most popular 8-bit CPU of all time - indeed, if one takes the absolute size of the market into account, the most sucessful CPU ever.
	www.ebroadcast.com.au /lookup/encyclopedia/z8/Z80.html (296 words)

	Zilog Z80 (Site not responding. Last check: 2007-10-27)
		Although Zilog made several attempts to move off the Z80 onto more powerful 16-bit (Zilog Z800) and 32-bit (Zilog Z8000) platforms, other companies were offering CPUs in this performance range years earlier, and the Zilog chips never caught on.
		In the mid-1980s the Z80 was used in Tatung's Einstein and the Amstrad CPC and PCW home/office computer ranges, as well as the dual-CPU Commodore 128 (to make it CP/M compatible).
		The Zilog Z80 has also become a popular embedded microprocessor and microcontroller core, where it remains in widespread use today.
	bopedia.com /en/wikipedia/z/zi/zilog_z80.html (543 words)

	Zilog Z80 - Information from Reference.com
		In recent decades Zilog has refocused on the ever-growing market for embedded systems (for which the original Z80 and the Z180 were designed) and the most recent Z80-compatible microcontroller family, the fully pipelined 24-bit eZ80 with a linear 16 MB address range, has been successfully introduced alongside the simpler Z180 and Z80 products.
		ZiLOG published the opcodes and related mnemonics for the intended functions, but did not document the fact that every opcode that allowed manipulation of the H and L registers was equally valid for the 8 bit portions of the IX and IY registers.
		Zilog's ill-fated NMOS Z800 and CMOS Z280 were quite fast Z80-implementations (before the HD64180 / Z180) with a 16 MB paged MMU address space; they added many orthogonalizations and addressing modes to the Z80 instruction set, but were too complex and mini-computer inspired to be a natural choice for most embedded applications.
	www.reference.com /search?q=Zilog+Z80 (3960 words)

	Zilog Z80
		ZilogвЂ™s most recent CPU is the Zilog eZ80, a faster Z80 with a 16 MB addressing range.
		In the mid-1980s the Z80 was used in Tatung's Einstein and the Amstrad CPC and PCW home/office computer ranges as well as forming the CPU basis for the MSX computer standard.
		The Z80 was also used in the Norwegian Tiki 100 computers, which were the computers of choice for Norwegian schools during the late 1980s.
	www.mrsci.com /Microprocessors/Zilog_Z80.php (900 words)

	Zilog Z80 - Definition, explanation
		Zilog’s most recent CPU is the Zilog eZ80, a faster Z80 with a 24 MB addressing range.
		In the mid-1980s the Z80 was used in Tatung's Einstein and the Amstrad CPC and PCW home/office computer ranges as well as forming the CPU basis for the MSX computer standard.
		Such was the popularity of the Z80 and CP/M that the Commodore 128 featured a Z80 processor alongside its MOS Technology 8502 processor for compatibility.
	www.calsky.com /lexikon/en/txt/z/zi/zilog_z80.php (1020 words)

	New OS released for Zilog Z80
		ZILOG SAID it has released a new real time OS for the latest versions of its extremely long-in-the-tooth Z80 chip.
		The OS is supplied as a C library module with source and header files and is compatible with the Zilog integrated development environment.
		The Z80 is a venerable, hoary old eight bit microprocessor first launched in 1976.
	www.theinquirer.net /?article=13940 (232 words)

	Zilog Z80 8-Bit Microprocessor (Site not responding. Last check: 2007-10-27)
		Z80 and the Z80 assembly language are trademarks of ZILOG, Inc.)
		The Z80 microprocessor is an 8 bit CPU with a 16 bit address bus capable of direct access of 64k of memory space.
		The Z80 was modeled after the 8088 and contains the 78 - 8088 opcodes as a subset to it's language.
	www.ee.washington.edu /circuit_archive/micro/z80.html (266 words)

	The Old Joel on Software Forum - Why did Zilog fail?
		Zilog was exhibiting at an embedded systems conference I attended not too long ago and their web site is still there.
		Zilog shrunk (they were once owned by Exxon!) because they went from 1 8 bit Z80 hugely successful processor to a pure 16 bit processor (Z8000?).
		They broke backward compatibility with the Z80 at a time when intel was smart to come out with 8088 which was a combo 8/16 processor cheaper to design for and which would use many existing off the shelf chips including memory due to its 8 bit wide bus.
	discuss.fogcreek.com /joelonsoftware?cmd=show&ixPost=136711 (711 words)

	Zilog Z80 - Computing Reference - eLook.org (Site not responding. Last check: 2007-10-27)
		The Z80 was a much improved Intel 8080 (as was the Intel 8085).
		The thing that really made the Z80 popular was the memory interface - the CPU generated it's own RAM refresh signals, which meant easier design and lower system cost.
		The Zilog Z280 was an enhanced version with an MMU and many new op codes.
	www.elook.org /computing/zilog-z80.htm (327 words)

	Z80 (Site not responding. Last check: 2007-10-27)
		Z80 is an emulator for the Intel 8080 and 8085 processors, and the Zilog Z80 processor.
		Z80 is provided free of charge and with no warranty whatsoever including any warranty of fitness for any purpose including MERCHANTABILITY.
		Source is included for the emulator itself, but the subroutine library used by the emulator is available separately (however, the subroutine library has evolved and probably won't compile with Z80 in its current form).
	cef.sourceforge.net /z80 (331 words)

	09.24.98 Zilog Z80/80180/80380: EDN's 25th Annual Microprocessor/Microcontroller Directory
		The Z80 and 180 include two banks of registers; each bank comprises an 8-bit accumulator and six 8-bit registers that you can also use as three 16-bit registers.
		The Z80 memory-address space is 65 kbytes, and the I/O space accesses as much as 256 bytes.
		Unlike with the Z180, development support for the Z380 is minimal; Zilog provides an assembler, an evaluation board, and a Production Languages Corp (www.plcorp.com) C compiler with an optimizer program to improve performance and code size.
	www.edn.com /archives/1998/092498/16_Z80.htm (652 words)

	Know it all Inc. (Z) (Site not responding. Last check: 2007-10-27)
		Zilog The {microprocessor} manufacturer who produced the {Zilog Z80} in July 1976 and later the {Zilog Z8000}.
		The Z8 is not related to the {Zilog Z80}, it uses a totally different architecture and {instruction set}.
		A later version, the {Zilog Z80000}, was expanded to 32 bits internally, and was fully {pipeline}d (6 stages).
	artikbre.synchro.net /docs/Z.html (2887 words)

	CPU-World: Zilog Z80 microprocessor family
		Zilog Z80 microprocessor is an 8-bit CPU object-code compatible with Intel 8080 CPU.
		The Zilog Z80 microprocessor was second sourced by many companies.
		Z80 microprocessors were released in July 1976 (May 1976 according to Federico Faggin's www.intel4004.com website).
	www.cpu-world.com /CPUs/Z80 (193 words)

	Zilog Z80 - Free net encyclopedia (Site not responding. Last check: 2007-10-27)
		Image:Zilog Z80.jpg The Zilog Z80 is an 8-bit microprocessor designed and sold by Zilog from July 1976 onwards.
		Zilog I/O chips supported the Z80's Mode 3 interrupts which simplified interrupt handling for large numbers of peripherals.
		Some of the index register instructions of the Z80 instruction set were not much fasterTemplate:Ref than equivalent sequences of simpler operations.
	www.netipedia.com /index.php/Z80 (2079 words)

	zilog - tutorials free design (embedded zilog z80)
		The Zilog Z80 is an 8-bit microprocessor designed and sold by Zilog from July 1976 onwards.
		The original Z80 chip was the successor to the Intel 8080 and was widely used in first-generation personal computers that used the CP/M operating system.
		The Z80 microprocessor is an 8 bit CPU with a 16 bit address bus capable of direct access of 64k of memory space.
	www.eg3.com /WebID/embedded/zilog/blank/overview/a-z.htm (489 words)

	86 Central - General Z80 Information (Site not responding. Last check: 2007-10-27)
		The Zilog Z80 is a CPU created by Zilog, Inc.
		The Z80 CPU contains an address bus of 16-bit, which means it can access 2^16 or 65,535 bytes of memory at one time.
		Z80 Status Indicators: These are flags that indicate certain information regarding the status of a certain operation.
	ti86.acz.org /z80_gen.htm (260 words)

	Sequence Enumeration
		ZiLOG's offering is called the eZ80 and is expected to hit the street in the second half of 2000.
		A context switch for the Z80 is shown in Figure 6.
		The Z80 provides a number of registers that can be used to indirectly address memory, making it a natural for pointer manipulation.
	www.embedded.com /2000/0009/0009feat1.htm (5221 words)

	Zilog Z80 - Education - Information - Educational Resources - Encyclopedia - Music
		Although Zilog made several attempts to move off the Z80 onto more powerful 16-bit (Zilog Z800, Zilog Z8000) and 32-bit (Zilog Z80000) platforms, other companies were offering CPUs in this performance range years earlier, and the Zilog chips never caught on.
		The Z80 quickly took over from the 8080 in the market, and became the most popular 8-bit CPU of all time - indeed, if one takes the absolute size of the market into account, the most successful CPU ever.
		The Sinclair ZX80 and -81 were equipped with the Z80 clone NEC 780C.
	www.music.us /education/Z/Zilog-Z80.htm (890 words)

	Zilog Z80 - TheBestLinks.com - Amstrad CPC 464, Apple II, BBC Micro, CPU, ... (Site not responding. Last check: 2007-10-27)
		Although Zilog made several attempts to move off the Z80 onto more powerful 16-bit (Zilog Z800, Zilog Z8000) and 32-bit (Zilog Z80000) platforms, other companies were offering CPUs in this performance range years earlier, and the Zilog chips never caught on.
		Perhaps key to the success of the Z80 was the built-in DRAM controller, which allowed systems to be built with fewer support chips.
		Such was the popularity of the Z80 and CP/M that the Commodore 128 featured a Z80 processor alongside its MOS Technology 6502 processor for compatibility.
	www.thebestlinks.com /Z80.html (662 words)

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