Burroughs B6x00-7x00 instruction set

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Burroughs B6x00-7x00 instruction set" – news · newspapers · books · scholar · JSTOR (December 2009) (Learn how and when to remove this message)

The Burroughs B6x00-7x00 instruction set includes the set of valid operations for the Burroughs B6500,^[1] B7500 and later Burroughs large systems, including the current (as of 2006) Unisys Clearpath/MCP systems; it does not include the instruction for other Burroughs large systems including the B5000, B5500, B5700 and the B8500. These unique machines have a distinctive design and instruction set. Each word of data is associated with a type, and the effect of an operation on that word can depend on the type. Further, the machines are stack^[a] based to the point that they had no user-addressable registers.

Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).