ProXPL Bytecode Format Specification

Overview

ProXPL uses a stack-based bytecode format. Instructions are 1-byte opcodes followed by variable-length arguments.

Opcode	Name	Arguments	Description
0x01	ADD	-	Popp 2 values, add, push result
0x02	SUB	-	Pop 2 values, sub, push result
0x03	MUL	-	Pop 2 values, mul, push result
0x04	DIV	-	Pop 2 values, div, push result
0x10	LOAD	index	Push local variable[index]
0x11	STORE	index	Pop value, store in local[index]
0x20	JUMP	label	Unconditional jump
0x21	JUMP_IF	label	Pop cond, jump if true
0x30	CALL	func_id	Call function
0x31	RET	-	Return from function