def get_jump_address(npc, instr):
"""Return jump address for instr given npc.
Take 4 msb of old PC
Mul offset_from_pc by 4
Concatenate
That's where we should jump
Arguments:
- `instr`: J-type instruction.
"""
old_pc = npc - 4
pc_msb = Memory.get_binary_string(old_pc)[:4]
imm = Memory.get_binary_string(instr.offset_from_pc * 4, 28)
jump_addr = int(pc_msb + imm, 2)
return jump_addr
def get_jump_address(npc, instr):
"""Return jump address for instr given npc.
Take 4 msb of old PC
Mul offset_from_pc by 4
Concatenate
That's where we should jump
Arguments:
- `instr`: J-type instruction.
"""
old_pc = npc - 4
pc_msb = Memory.get_binary_string(old_pc)[:4]
imm = Memory.get_binary_string(instr.offset_from_pc * 4, 28)
jump_addr = int(pc_msb + imm, 2)
return jump_addr
