https://github.com/jam1garner/another-simple-bytecode

A simple bytecode language I designed with an included assembler and virtual machine interpreter
https://github.com/jam1garner/another-simple-bytecode

Last synced: 4 days ago
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A simple bytecode language I designed with an included assembler and virtual machine interpreter

• Host: GitHub
• URL: https://github.com/jam1garner/another-simple-bytecode
• Owner: jam1garner
• License: mit
• Created: 2017-05-09T04:00:12.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-06-22T20:03:38.000Z (over 7 years ago)
• Last Synced: 2025-01-03T02:53:58.403Z (5 days ago)
• Language: C
• Size: 9.77 KB
• Stars: 2
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Another Simple Bytecode

A simple bytecode language I designed with an included assembler and virtual machine interpreter.

### Features include:

* 10 32-bit free use registers (r0-r9)

* Ability to input/output characters and numbers to the console as well as print a string to the console

* Most standard operations

* Ability to access memory to store/load variables

#### Requirements:

* Requires python 2 for assembler

* Any C compiler for virtual machine

#### Compiling using GCC:

Command: `gcc virtual_machine.c`

### Available opcodes:

* nop

* load constant (lc)

* load constant upper (lcu)

* load variable (lv)

* store variable (str)

* push to stack (push)

* pop from stack (pop)

* branch if not equal (bin)

* branch if less than (bil)

* branch if equal (bie)

* branch if greater (big)

* branch without condition (b)

* compare (cmp)

* syscall (sys)

* increment counter (inc)

* decrement counter (dec)

* copy register (copy)

* swap register (swap)

* add (add)

* subtract (sub)

* multiply (mult)

* divide (div)

* modulus (mod)

* or (or)

* and (and)

* xor (xor)

* not (not)

* left shift (ls)

* right shift (rs)

### Available registers:

* r0-r9

* acc

* br  (branch conditional is stored here, cmp has less than = -1, greater than = 1, equal to = 0)

* c   (counter)

* ss  (stack start)

* se  (stack end)

### Available syscalls:

* 0 - pop value and output it to console

* 1 - pop char and output it to console

* 2 - input value from console and push it

* 3 - input char from console and push it

* 4 - print string from stack