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ASIA

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 successor.

Operations

ASIA uses the Ghost Bit system, so while there are only three bits of opcode, there are 16 possible instructions.

ASIA instructions are eleven bits long.

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

GB	Opcode	Command	Description
0	000	INC <reg1>	Increments reg1
0	001	DEC <reg1>	Decrements reg1
0	010	SLL <reg1>	Shifts reg1 left
0	011	SRL <reg1>	Shifts reg1 right
0	100	MOV <reg1> <reg2>	Move value of reg2 to reg1
0	101	SLT <reg1> <reg2>	Set reg1 to 0xFF if reg1 < reg2 else 0x00
0	110	SGT <reg1> <reg2>	Set reg1 to 0xFF if reg1 > reg2 else 0x00
0	111	SET <reg1> <reg2>	Set reg1 to 0xFF if reg1 = reg2 else 0x00
1	000	REP	Reproduce at IPLOC
1	001	JMP	Jump
1	010	JMC <reg2>	Jump if reg2 = 0xFF
1	011	MOV	Move cell in direction of IPLOC
1	100	NON	UNASSIGNED
1	101	NPA	NOP A, part of jump templating
1	110	NPB	NOP B, part of jump templating
1	111	ATK	Attack cell at IPLOC