ASIA, short for ArchEvo Standard Instruction set Architecture, is an ISA in ArchEvo. It was the original ISA that was created for ArchEvo. It was the only ISA supported in ArchEvo Classic, and is currently the only available ISA in ArchEvo Pangea, although research is being done on it's succesor.

ASIA instructions are eleven bits long.

OOO22221111
O - Opcode
1 - Register 1
2 - Register 2