About: Western Digital WD16

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The WD16 is a 16-bit microprocessor introduced by Western Digital in October 1976. It is based on the MCP-1600 chipset, which formed the basis of the DEC LSI-11 low-end minicomputer and the Pascal MicroEngine processor designed specifically to run the UCSD p-System efficiently. Each used different microcode. The WD16 implements an extension of the PDP-11 instruction set architecture but is not machine code compatible with the PDP-11. The instruction set and microcoding were created by Dick Wilcox and Rich Notari. The WD16 is an example of orthogonal CISC architecture. Most two-operand instructions can operate memory-to-memory with any addressing mode and some instructions can result in up to ten memory accesses.

Attributes	Values
rdfs:label	Western Digital WD16 (en)
rdfs:comment	The WD16 is a 16-bit microprocessor introduced by Western Digital in October 1976. It is based on the MCP-1600 chipset, which formed the basis of the DEC LSI-11 low-end minicomputer and the Pascal MicroEngine processor designed specifically to run the UCSD p-System efficiently. Each used different microcode. The WD16 implements an extension of the PDP-11 instruction set architecture but is not machine code compatible with the PDP-11. The instruction set and microcoding were created by Dick Wilcox and Rich Notari. The WD16 is an example of orthogonal CISC architecture. Most two-operand instructions can operate memory-to-memory with any addressing mode and some instructions can result in up to ten memory accesses. (en)
name	Western Digital WD16 (en)
foaf:depiction
dcterms:subject	Western Digital products 16-bit microprocessors Computer-related introductions in 1976 Instruction set architectures
Wikipage page ID	69463588 (xsd:integer)
Wikipage revision ID	1123617231 (xsd:integer)
Link from a Wikipage to another Wikipage	Processor register Minicomputer Memory-mapped I/O Pascal MicroEngine Relocation (computing) Western Digital products Creative Computing Benchmark S-100 bus Endianness Motorola 68000 Coroutine Orthogonal instruction set 16-bit microprocessors MCP-1600 Complex instruction set computer Program counter Stride of an array Byte Western Digital Dual in-line package Alpha Microsystems Computer-related introductions in 1976 Floating-point arithmetic Bank switching Kilobyte Machine code Hexadecimal LSI-11 Instruction set architectures Bit Zero flag Digital Equipment Corporation Position-independent code IBM Personal Computer Intel Carry flag Word (computer architecture) X86 architecture Memory segmentation Offset binary Overflow flag PDP-11 architecture Sign flag UCSD p-System
Link from a Wikipage to an external page	http://www.s100computers.com/Hardware%20Folder/Alpha%20Micro/AM-100/AM-100.htm
dbp:wikiPageUsesTemplate	dbt:Draft_topics dbt:Brk dbt:Clear dbt:Inflation dbt:More_citations_needed dbt:Multiple_issues dbt:Notability dbt:Reflist dbt:Short_description dbt:Start_date_and_age dbt:Infobox_CPU
thumbnail	wiki-commons:Special:FilePath/WD16_on_AM-100.jpg?width=300
arch	PDP-11 like (en)
fast-unit	MHz (en)
fastest	3.300000 (xsd:double)
manuf	Western Digital
pack	5 (xsd:integer)
caption	WD16 microprocessor in five 40-pin packages installed on an Alpha Microsystems AM-100 CPU board which connects to a S-100 bus. (en)
successor	none (en)
has abstract	The WD16 is a 16-bit microprocessor introduced by Western Digital in October 1976. It is based on the MCP-1600 chipset, which formed the basis of the DEC LSI-11 low-end minicomputer and the Pascal MicroEngine processor designed specifically to run the UCSD p-System efficiently. Each used different microcode. The WD16 implements an extension of the PDP-11 instruction set architecture but is not machine code compatible with the PDP-11. The instruction set and microcoding were created by Dick Wilcox and Rich Notari. The WD16 is an example of orthogonal CISC architecture. Most two-operand instructions can operate memory-to-memory with any addressing mode and some instructions can result in up to ten memory accesses. The WD16 is implemented in five 40-pin DIP packages. Maximum clock speed is 3.3 MHz. Its interface to memory is via a 16-bit multiplexed data/address bus. The WD16 is best known for its use in Alpha Microsystems' AM-100 and AM-100/T processor boards. A prototype was demonstrated in 1977. As of 1981 there were at least 5,000 Alpha Micro computers based on the WD16. As late as 1982, WD16-based Alpha Micros were still being characterized as "supermicros." The WD16 was superseded by the Motorola 68000 in June 1982. (en)
address-width	16 (xsd:integer)
data-width	16 (xsd:integer)
instructions	119 (xsd:integer)
prov:wasDerivedFrom	wikipedia-en:Western_Digital_WD16?oldid=1123617231&ns=0
page length (characters) of wiki page	47895 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Western_Digital_WD16
is Link from a Wikipage to another Wikipage of	Pascal MicroEngine List of microprocessors 16-bit computing MCP-1600 Microcode Western Digital Alpha Microsystems Microprocessor chronology
is foaf:primaryTopic of	wikipedia-en:Western_Digital_WD16

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