G_UTL.py

###
# File to store simulator global variables
###

# Simulator flags for the history board at the end
ran = {'IF': (0, 0), 'ID': (0, 0), 'EX': (0, 0), 'MEM': (0, 0), 'WB': (0, 0)}
wasIdle = {'IF': False, 'ID': False, 'EX': False, 'MEM': False, 'WB': False}

# Dictionaries for easier processing
rTypeWords = { 'add': 0b100000, 'sub': 0b100010, 'and': 0b100100,  'or': 0b100101,
               'sll': 0b000000, 'srl': 0b000010, 'xor': 0b100110, 'nor': 0b100111,
              'mult': 0b011000, 'div': 0b011001}
rTypeBins = {v: k for k, v in rTypeWords.items()}
regNames = ['$zero', '$at', '$v0', '$v1', '$a0', '$a1', '$a2', '$a3',
              '$t0', '$t1', '$t2', '$t3', '$t4', '$t5', '$t6', '$t7',
              '$s0', '$s1', '$s2', '$s3', '$s4', '$s5', '$s6', '$s7',
              '$t8', '$t9', '$k0', '$k1', '$gp', '$sp', '$fp', '$ra']

# Data Memory size, can be changed to any multiple of 4
DATA_SIZE = 16

# Error Signals
EINST = -1
EARG = -2
EFLOW = -3
ERROR = [EINST, EARG, EFLOW]

# Enable or disable hazard protections
data_hzd = True
ctrl_hzd = True

# Forwarding+Hazard Units helper variables
outFwdA = 0
outFwdB = 0