merged with mips_v2 branch
working on jump
JumpAddrCompute entity testet without toplvl
changed Control entity in order to jump and link
jump instr added to instruction memory
entity PCSourceMUX added, pc_counter changed
instructions jump, jump and link, jump and link register, jump register
are implemented
test bench for jump
jump, jal instructions and pipeline stall are implemented and tested
last commit before integration of mips_v2 branch
working on integration with mips_v2 branch
mips_v2 integrated without pipeline stall
Merge branch 'master' into mips_v2

Conflicts:
	tb_top_lvl.vhd