Universal floating-point instruction set architecture for computing directly with decimal character sequences and binary formats in any combination

摘要

A universal floating-point Instruction Set Architecture (ISA) implemented entirely in hardware. Using a single instruction, the universal floating-point ISA has the ability, in hardware, to compute directly with dual decimal character sequences up to IEEE 754-2008 “H=20” in length, without first having to explicitly perform a conversion-to-binary-format process in software before computing with these human-readable floating-point or integer representations. The ISA does not employ opcodes, but rather pushes and pulls “gobs” of data without the encumbering opcode fetch, decode, and execute bottleneck. Instead, the ISA employs stand-alone, memory-mapped operators, complete with their own pipeline that is completely decoupled from the processor's primary push-pull pipeline. The ISA employs special three-port, 1024-bit wide SRAMS; a special dual asymmetric system stack; memory-mapped stand-alone hardware operators with private result buffers having simultaneously readable side-A and side-B read ports; and dual hardware H=20 convertFromDecimalCharacter conversion operators.