3 Bits, 1.5 Bytes

3 Bits, 1.5 Bytes is an assembly language for a 3-bit CPU, made by User:MihaiEso. With 1.5 bytes of memory, this machine could store at least 2 instructions.

Operations

The following are instructions of 3 Bits, 1.5 Bytes:

Code	Name	Description
000	NOT	do NOThing.
001	ACT	ACTion. Given value in memory, change the value according to the following table: From To 000 111 001 110 010 101 011 100 100 011 101 010 110 001 111 000
010	JMP	JuMP. Jump (unconditionally) to address specified.
011	CJM	Conditional JuMp. Given two addresses, if the value in the first address is nonzero, jump to the second address.
100	OR	OR. ORs the given 2 values in memory.
101	XOR	XOR. eXclusive ORs the given 2 values in memory.
110	NAND	NAND. Not ANDs the given 2 values in memory.
111	END	END. Print the entire memory as character and end the program.

The instruction pointer can wrap around, thus allowing more "complicated" programs.

Programs

The memory is 12 bits, so you can store with ~2 characters.

For example:

0�

becomes:

001100001011

which, when disassembled, becomes:

ACT 100b
ACT 011b

Example codes

XOR 4 and 6 and print the result

ASCII:

³�

Binary:

101100110111

Disassembled:

XOR 100b,110b
END

NAND 7 and 3 and print the result

ASCII:

�

Binary:

110111011111

Disassembled:

NAND 111b,011b
END

Interpreters

TODO...

See also

• 3 Bits, 3 Bytes