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In a stack machine, the operands used in the instructions are always at a known offset (set in the stack pointer), from a fixed location (the bottom of the stack, which in a hardware design might always be at memory location zero), saving precious in-cache or in-CPU storage from being used to store quite so many memory addresses or index ...
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Separate from the stack definition of a MISC architecture, is the MISC architecture being defined by the number of instructions supported. Typically a minimal instruction set computer is viewed as having 32 or fewer instructions, [1] [2] [3] where NOP, RESET, and CPUID type instructions are usually not counted by consensus due to their fundamental nature.
The RTX 2000 is a two-stack machine, each stack 256 words deep, that supports direct execution of Forth. Subroutine calls only take one processor cycle and returns take zero. [ 1 ] It also has a very low and consistent interrupt latency of only four processor cycles, which lends it well to realtime applications .
Tandem Computers was founded in 1974 by James Treybig.Treybig first saw the market need for fault tolerance in OLTP (online transaction processing) systems while running a marketing team for Hewlett-Packard 's HP 3000 computer division, but HP was not interested in developing for this niche.
Joel McCormack is an American computer scientist who designed the NCR Corporation version of the p-code machine, which is a kind of stack machine popular in the 1970s as the preferred way to implement new computing architectures and languages such as Pascal and BCPL.
Thus, it is not a good practice to program this way on those architechtures. The 8087 (The floating point math coprocessor) is a stack machine, though. Added x87 as an example of hybrids between stack and register machines. DBSand 05:30, 1 April 2011 (UTC)DBSand Most stack machines are, infact two-stack machines.
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