add multiple matrix multiplication tests

add matrix_mul_test

fix data_compiler.py

remake makefile; add asm compiler

add debug dump of memory after programm execution

add and check array test

fix size of data_mem_loopback_addr

add lw and sw instructions

add loopback in memory module

add space for loopback in selfcheck test

add mul, idiv instruction

fully working cpu

simpliest tb has passed

top module template

add mem module (parameterizable - program or data mem)

create alu