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AMD Am29000

"29K" redirects here. For the Soviet self-propelled anti-aircraft weapon, see 29K (artillery).
AMD 29000 microprocessor
AMD 29030

The AMD Am29000, commonly shortened to 29k, is a family of 32-bit RISC microprocessors and microcontrollers developed and fabricated by Advanced Micro Devices (AMD). Based on the seminal Berkeley RISC, the 29k added a number of significant improvements. They were, for a time, the most popular RISC chips on the market,[citation needed] widely used in laser printers from a variety of manufacturers.

Developed since 1984–1985, announced in March 1987 and released in May 1988,[1][2][3] the initial Am29000 was followed by several versions, ending with the Am29040 in 1995.[4] The 29050 was notable for being early to feature a floating point unit capable of executing one multiply–add operation per cycle.

AMD was designing a superscalar version until late 1995, when AMD dropped the development of the 29k because the design team was transferred to support the PC (x86) side of the business. What remained of AMD's embedded business was realigned towards the embedded 186 family of 80186 derivatives. By then the majority of AMD's resources were concentrated on their high-performance x86 processors for desktop PCs, using many of the ideas and individual parts of the 29k designs to produce the AMD K5.

  1. ^ Martin, James A. (23 March 1987). "Firm says 32-bit chip handles 17 MIPS". Computerworld. Vol. 21, no. 12. p. 14.
  2. ^ Cole, Bernard C. (28 April 1988). "RISC Slugfest: Is Marketing More Important Than Performance?" (PDF). Electronics. p. 66 (p. 68 of .pdf).
  3. ^ "Oral History of William Michael 'Mike' Johnson" (PDF). Computer History Museum (Interview). Interviewed by Kevin Krewell. 9 May 2014. Well, it started in '85. And it took I would say about three years and maybe four revs till it was functional.
  4. ^ Betker, Michael R.; Fernando, John S.; Whalen, Shaun P. (Autumn 1997). "The History of the Microprocessor" (PDF). Bell Labs Technical Journal: 48.

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