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base.py
54 lines (38 loc) · 1.17 KB
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base.py
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__author__ = 'marcus'
class Registers(object):
def __init__(self):
self.generalPurposes = [0] * 32
self.PC = 0
self.nPC = self.PC + 4
self.LO = 0
self.HI = 0
def get_value_for_register(self, num):
return self.generalPurposes[num]
def set_value_for_register(self, num, val):
self.generalPurposes[num] = val
def set_initial_pc(self, val):
self.PC = val
self.nPC = val + 4
def advance_pc(self, val = 4):
self.PC = self.nPC
self.nPC += val
def decrease_pc(self, val = 4):
self.PC = self.nPC
self.nPC -= val
def set_gp_val(self, val):
self.generalPurposes[28] = val + 4
class Memory(object):
reg = Registers()
def __init__(self):
self.mem = [0] * (2**20)
def get_val_in_address(self, address):
return self.mem[address >> 2]
def set_val_to_address(self, val, address):
self.mem[address >> 2] = val
def get_registers(self):
return self.reg
def get_register_num(self, reg):
return int(reg[1:len(reg)])
def print_memory(self):
for x in self.mem:
if x is not 0: print x