These were the early stages of self-vm. You can find more about it on the new github org.

self

opcode

self opcodes can have different meaning in different environments, the important thing is the base level. this is the main level where you're not lookaheading bytes. at this level these are the opcodes:

instructions

• 0x00: zero
• 0x01: load_const
• 0x02: print
• 0x03: add

data types

• 0x00: nothing
• 0x01: u32
• 0x02: u64
• 0x03: i32
• 0x04: i64

since the data types cannot be used without a instruction that is assigned to the opcodes can be the same.

note: all the bytecode data is stored using the little endian encoding.