r16

number	instruction	argument 1	argument 2	explanation
0x00	HLT			halts the CPU
0x01	ADD	value 1	value 2	ACU = value 1 + value 2
0x02	SUB	value 1	value 2	ACU = value 1 - value 2
0x03	MUL	value 1	value 2	ACU = value 1 * value 2
0x04	DIV	value 1	value 2	ACU = value 1 / value 2
0x05	LBS	value	amount	ACU = value << amount
0x06	RBS	value	amount	ACU = value << amount
0x07	BAN	value 1	value 2	ACU = value 1 & value 2
0x08	BOR	value 1	value 2	ACU = value 1 \
0x09	BXO	value 1	value 2	ACU = value 1 ^ value 2
0x0A	BNO	value		ACU = ~ value
0x0B	PUS	value		pushes value onto the stack
0x0C	POP			pops a value from the stack and stores it in ACU
0x0D	JMP	address		jumps to address
0x0E	JEQ	address	value	jumps to address, if value is equal to ACU
0x0F	JNZ	address	value	jumps to address, if value is not zero
0x10	CAL	address		pushes PC + 1 to the stack, then jumps to address
0x11	RET			pops value from stack and jumps to it
0x12	REG	int type	address	registers int type to address
0x13	INT	int type		interrupts as int type
0x14	INP			inputs a character into ACU
0x15	OUT	value		outputs value
0x16	DIN	location		reads value from disk at location to ACU
0x17	DOT	location	value	writes value to disk at location
0x18	MOV	value 1	value 2	move value 2 to value 1

Area of RAM	reserved	Writable	usage
00000 - 00064	YES	NO	system header
00064 - 65023	NO	YES	executable
65023 - 65279	YES	YES	interupt pointers
65279 - 65535	YES	YES	stack

BYTE 1				BYTE 2	BYTE 2
OPCODE	UNUSED	ARG 1 INFO	ARG 2 INFO	ARGUMENT 1	ARGUMENT 2
8 bits	4 bits	2 bits	2 bits	16 bits	16 bits

State	Argument Interpretation
0x0	Value in argument
0x1	Value in register
0x2	Value in RAM
0x3	Value in RAM, at address stored in register