def decodeInstr(hexCode):
binary = utilFunc.hexToBin(hexCode)
#Checking for branch type
if(binary[3:6] == '101'):
for i in range(4):
dicts_branch.INSTRUCTION_TYPE(binary, i)
if(const.FLAG_INST_EXECUTED=="1"):
break
#Checking for load-store
elif(binary[4] == '1' and binary[6] == '0'):
for i in range(8):
dicts_loadStore.INSTRUCTION_TYPE(binary, i)
if(const.FLAG_INST_EXECUTED=="1"):
break
if(const.FLAG_INST_EXECUTED=="0"):
for i in range(11):
dicts.INSTRUCTION_TYPE(binary, i)
if(const.FLAG_INST_EXECUTED=="1"):
break
if(const.FLAG_INST_EXECUTED=="0"):
print 'Sorry!!! :( Instruction with hexCode: ' + hexCode + ' is incorrect or not supported'
def decodeInstr(hexCode):
binary = utilFunc.hexToBin(hexCode)
#Checking for branch type
if (binary[3:6] == '101'):
for i in range(4):
dicts_branch.INSTRUCTION_TYPE(binary, i)
if (const.FLAG_INST_EXECUTED == "1"):
break
#Checking for load-store
elif (binary[4] == '1' and binary[6] == '0'):
for i in range(8):
dicts_loadStore.INSTRUCTION_TYPE(binary, i)
if (const.FLAG_INST_EXECUTED == "1"):
break
if (const.FLAG_INST_EXECUTED == "0"):
for i in range(11):
dicts.INSTRUCTION_TYPE(binary, i)
if (const.FLAG_INST_EXECUTED == "1"):
break
if (const.FLAG_INST_EXECUTED == "0"):
print 'Sorry!!! :( Instruction with hexCode: ' + hexCode + ' is incorrect or not supported'
def printMemEngine(command):
base = command[2] # x or d
address = command[3]
freq = command[1]
listOfHex = ''
address = int(address, 16)
#assume to be in hex
freqcount = int(freq[0:-1])
freqtype = freq[-1] # b w or d
numOfBits = ''
if freqtype == 'w':
for i in range(freqcount):
data = mem.fetchWordFromMemory(address + (4 * i))
if data == const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex += data + ' '
numOfBits = 32
elif freqtype == 'd':
for i in range(0, freqcount):
data1 = mem.fetchWordFromMemory(address + (8 * i))
data2 = mem.fetchWordFromMemory(address + (8 * i) + 4)
if data1 == const.TRAP or data2 == const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex += data2 + '' + data1 + ' '
numOfBits = 64
elif freqtype == 'b':
for i in range(0, freqcount):
data = mem.fetchByteFromHelperMemory(address + i)
if data == const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex += data + ' '
numOfBits = 8
listOfHex = listOfHex.split()
#print ''
#print listOfHex
#print '<'+command[3]+'>'+' : \t\t',
pretty = 0
for i in listOfHex:
if (pretty % 4 == 0):
print ''
print '<' + command[3] + '>' + ' + ' + str(
(pretty * numOfBits) / 8) + ' : \t\t',
if base == 'x':
print '0x' + i + '\t\t',
elif base == 'd':
binary = utilFunc.hexToBin('0x' + i, numOfBits)
print str(utilFunc.sInt(binary, numOfBits)) + '\t\t',
print ' ',
pretty = pretty + 1
print ''
def printMemEngine(command):
base=command[2] # x or d
address=command[3]
freq=command[1]
listOfHex=''
address=int(address,16)
#assume to be in hex
freqcount=int(freq[0:-1])
freqtype=freq[-1] # b w or d
numOfBits=''
if freqtype=='w':
for i in range(freqcount):
data=mem.fetchWordFromMemory(address+(4*i))
if data==const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex+=data+' '
numOfBits=32
elif freqtype=='d':
for i in range(0,freqcount):
data1=mem.fetchWordFromMemory(address+(8*i))
data2=mem.fetchWordFromMemory(address+(8*i)+4)
if data1==const.TRAP or data2==const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex+=data2+''+data1+' '
numOfBits=64
elif freqtype=='b':
for i in range(0,freqcount):
data=mem.fetchByteFromHelperMemory(address+i)
if data==const.TRAP:
print 'Memory location could not be accessed'
return
listOfHex+=data+' '
numOfBits=8
listOfHex=listOfHex.split()
#print ''
#print listOfHex
#print '<'+command[3]+'>'+' : \t\t',
pretty=0
for i in listOfHex:
if (pretty%4==0):
print ''
print '<'+command[3]+'>'+' + '+str((pretty*numOfBits)/8)+' : \t\t',
if base=='x':
print '0x'+i+'\t\t',
elif base=='d':
binary=utilFunc.hexToBin('0x'+i, numOfBits)
print str(utilFunc.sInt(binary, numOfBits))+'\t\t',
print ' ',
pretty=pretty+1
print ''
def main():
print "---Started---"
#"52800102"
hexes = ['d2800041', '94000002', 'd2800040', '52800063', 'd65f03c0']
for hexcode in hexes:
print 'inst: ' + utilFunc.hexToBin(hexcode)
resetInstrFlag()
#utilFunc.set_Z_flag()
decoder.decodeInstr(hexcode)
printAllRegs()
printAllFlags()
def main():
print "---Started---"
#"52800102"
hexes = ['d2800041', '94000002', 'd2800040', '52800063', 'd65f03c0']
for hexcode in hexes:
print 'inst: '+utilFunc.hexToBin(hexcode)
resetInstrFlag()
#utilFunc.set_Z_flag()
decoder.decodeInstr(hexcode)
printAllRegs()
printAllFlags()