Instruction Listing

Opcode	Instruction	Operands	Description
Pseudo	push		Push the given register onto the stack (i.e. add sp, -4; store sp, register).
Pseudo	pop		Pop the given register from the stack (i.e. load register, sp; add sp, 4).
Pseudo	loadi		Load the given 32-bit immediate, or label, into a register.
Pseudo	db		Create arg1 bytes, each containing arg2.
Pseudo	rep		Repeat the following instruction arg1 times.
0x00	load	dst, src	Loads the value located in [src] into dst.
0x01	store	dst, src	Stores the value located in src into [dst].
0x02	loadli	dst, imm	Load the immediate into the lower half of src.
0x03	loadui	dst, imm	Load the immediate into the upper half of src.
0x04	move	dst, src	Copy the value in src to dst.
0x05	add	dst, src, src	Add src1 and src2 together, and store the result in dst.
0x06	add	dst, imm	Add the immediate to dst, and store the result in dst.
0x07	sub	dst, src, src	Subtract src2 from src1, and store the result in dst.
0x08	mul	dst, src, src	Multiply src1 by src2, and store the result in dst.
0x09	div	dst, src, src	Divide src1 by src2, and store the result in dst.
0x0A	not	dst, src	Bitwise-NOT src, and store the result in dst.
0x0B	and	dst, src, src	Bitwise-AND src1 with src2, and store the result in dst.
0x0C	or	dst, src, src	Bitwise-OR src1 with src2, and store the result in dst.
0x0D	xor	dst, src, src	Bitwise-XOR src1 with src2, and store the result in dst.
0x0E	shl	dst, src, src	Shift src1 by src2 bits to the left, and store the result in dst.
0x0F	shr	dst, src, src	Shift src1 by src2 bits to the right, and store the result in dst.
0x10 - 0x1F			Unallocated opcodes (16 free)
0x20	cmp	dst, src	Compare dst to src, and update the flags register appropriately.
0x21	j	label	Jump to the given label unconditionally.
0x22	je	label	If the zero flag is set, jump to the given label.
0x23	jne	label	If the zero flag is not set, jump to the given label.
0x24	jgt	label	If the greater flag is set, jump to the given label.
0x25	jlt	label	If the less flag is set, jump to the given label.
0x26 - 0x3E			Unallocated opcodes (25 free)
0x3F	halt		Halt operation.