https://github.com/nyuichi/chisel-brainfuck

Tiny Brainf**k CPU written in Chisel
https://github.com/nyuichi/chisel-brainfuck

Last synced: 20 days ago
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Tiny Brainf**k CPU written in Chisel

• Host: GitHub
• URL: https://github.com/nyuichi/chisel-brainfuck
• Owner: nyuichi
• Created: 2015-05-19T05:01:50.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-12-05T22:18:39.000Z (about 9 years ago)
• Last Synced: 2024-10-16T03:48:13.331Z (2 months ago)
• Language: Scala
• Size: 9.77 KB
• Stars: 4
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# chisel-brainfuck

Brainfuck CPU written in Chisel

## ISA

* Two pointers: ip, dp

* 8bit * 32768 register file

* 8bit * 1024 code rom

* An instruction may have one operand (variable-length encoding)

Instructions:

* `Inc`

* `Dec`

* `PInc`

* `PDec`

* `Put` (write to output port)

* `Get` (read from input port)

* `Jz addr` (jump to `ip + 1 + addr` if reg(dp) is set to zero)

* `Jmp addr` (always jump to `ip + 1 - addr`)

Simple Brainfuck compiler is included in the Tester class (see `compile` method in BrainfuckTests class). You can run your own brainfuck code on the generated cpu simulator by changing the value of `BrainfuckTests#helloworld`.