4 ms·

That’s really interesting. You might enjoy reading about the VM embedded into the Busicom calculator that used the Intel 4004 [1] They squeezed a virtual machi

That’s really interesting. You might enjoy reading about the VM embedded into the Busicom calculator that used the Intel 4004 [1] They squeezed a virtual machine with 88 instructions into less than 1k of memory! [1] https://thechipletter.substack.com/p/bytecode-and-the-busicom https://thechipletter.substack.com/p/bytecode-and-the-busico...

hoosieree 4y ago
And here I was feeling impressed with myself for implementing the Nand2Tetris VM translator in ~2k of python... wow. Respect for the elders!
iainmerrick 4y ago
That is nifty! Sounds very similar to a Forth interpreter.
- deleted 4y ago
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- DonHopkins 4y ago
  There's also OpenFirmware's platform independent Forth bytecode "FCode": https://en.wikipedia.org/wiki/Open_Firmware https://en.wikipedia.org/wiki/Open_Firmware >Open Firmware Forth Code may be compiled into FCode, a bytecode which is independent of instruction set architecture. A PCI card may include a program, compiled to FCode, which runs on any Open Firmware system. In this way, it can provide boot-time diagnostics, configuration code, and device drivers. FCode is also very compact, so that a disk driver may require only one or two kilobytes. Therefore, many of the same I/O cards can be used on Sun systems and Macintoshes that used Open Firmware. FCode implements ANS Forth and a subset of the Open Firmware library.
wang_li 4y ago
In the mists of history S. Wozniak wrote the SWEET-16 interpreter for the 6502. A VM with 29 instructions implemented in 300 bytes. https://en.wikipedia.org/wiki/SWEET16 https://en.wikipedia.org/wiki/SWEET16