nitrogen

An interpreted programming language written in Go.

---

Project maintained by nitrogen-lang Hosted on GitHub Pages — Theme by mattgraham

Runtime VM

This implementation of Nitrogen runs on a bytecode virtual machine core called Elemental. In general it’s faster and more efficient than the old interpreter. With the VM, source code goes through a full compile stage before being executed including when using the REPL. This implementation does not have a JIT compiler and does not compile to machine assembly but instead to a higher level assembly-like bytecode.

Opcodes

These are all the opcodes used in this implementation.

BINARY_ADD

BINARY_AND

BINARY_ANDNOT

BINARY_DIVIDE

BINARY_MOD

BINARY_MUL

BINARY_NOT

BINARY_OR

BINARY_SHIFTL

BINARY_SHIFTR

BINARY_SUB

BREAK

BUILD_CLASS

CALL

COMPARE

CONTINUE

DEFINE

DELETE_FAST

DUP

END_BLOCK

GET_ITER

IMPLEMENTS

IMPORT

JUMP_ABSOLUTE

JUMP_FORWARD

JUMP_IF_FALSE_OR_POP

JUMP_IF_TRUE_OR_POP

LOAD_ATTRIBUTE

LOAD_CONST

LOAD_FAST

LOAD_GLOBAL

LOAD_INDEX

MAKE_ARRAY

MAKE_FUNCTION

MAKE_INSTANCE

MAKE_MAP

NEXT_ITER

NOOP

POP

POP_JUMP_IF_FALSE

POP_JUMP_IF_TRUE

RECOVER

RETURN

START_BLOCK

START_LOOP

STORE_ATTRIBUTE

STORE_CONST

STORE_FAST

STORE_GLOBAL

STORE_INDEX

UNARY_NEG

UNARY_NOT