Comment on Harvest (IBM 7950): Supercomputer for cryptanalysis at the NSA in the Cold WarparentComments−guenthert18dCreating the world's first dual instruction set CPU.World's first? What about the VIA C3 (or earlier NEC V20)? I'm sure there are more / earlier ones.https://en.wikipedia.org/wiki/Alternate_Instruction_Set−INTPenis18dThat's not the same thing, it's more like a hidden feature than the ISA of an entirely different CPU.−Angostura18dThere was also the semi-mythical PowerPC 615 that was meant to have both PowerPC and x86 instruction sets. W
Comments
World's first? What about the VIA C3 (or earlier NEC V20)? I'm sure there are more / earlier ones.
https://en.wikipedia.org/wiki/Alternate_Instruction_Set
That's not the same thing, it's more like a hidden feature than the ISA of an entirely different CPU.
There was also the semi-mythical PowerPC 615 that was meant to have both PowerPC and x86 instruction sets. W