def helper_l(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
imm19 = binary[8:27]
opc = binary[0:2]
signed = False
if(opc == '00'):
size = 4
elif(opc == '01'):
size = 8
elif(opc == '10'):
size = 4
signed = True
offset = utilFunc.signExtend(imm19 + '00', 64)
offset = utilFunc.sInt(offset, 64)
address = armdebug.getPC() + offset
dataSize = size * 8
data = utilFunc.fetchFromMemory(address, dataSize)
if(data == const.TRAP):
utilFunc.finalize_simple(instr)
print "HEY!!! There seems to be a problem - memory location can not be accessed"
print "Moving ahead without executing the instruction"
return
if(signed):
data = utilFunc.signExtend(data, 64)
instr += str(rtKey) + ", #" + str(offset)
utilFunc.finalize(rtKey, data.zfill(64), instr, '0')
def helper_l(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
imm19 = binary[8:27]
opc = binary[0:2]
signed = False
if (opc == '00'):
size = 4
elif (opc == '01'):
size = 8
elif (opc == '10'):
size = 4
signed = True
offset = utilFunc.signExtend(imm19 + '00', 64)
offset = utilFunc.sInt(offset, 64)
address = armdebug.getPC() + offset
dataSize = size * 8
data = utilFunc.fetchFromMemory(address, dataSize)
if (data == const.TRAP):
utilFunc.finalize_simple(instr)
print "HEY!!! There seems to be a problem - memory location can not be accessed"
print "Moving ahead without executing the instruction"
return
if (signed):
data = utilFunc.signExtend(data, 64)
instr += str(rtKey) + ", #" + str(offset)
utilFunc.finalize(rtKey, data.zfill(64), instr, '0')
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 helper_reg_unsignedOffset(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
imm12 = binary[10:22]
opc = binary[8:10]
size = binary[0:2]
wback = False
postIndex = False
scale = utilFunc.uInt(size)
offset = utilFunc.lsl(utilFunc.zeroExtend(imm12, 64), scale)
offset = utilFunc.sInt(offset, 64)
instr += str(rtKey) + ", [x" + str(rnKey) + ", #" + str(offset) + "]"
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey, scale, instr)
def helper_reg_prei(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
imm9 = binary[11:20]
opc = binary[8:10]
size = binary[0:2]
wback = True
postIndex = False
scale = utilFunc.uInt(size)
offset = utilFunc.signExtend(imm9, 64)
offset = utilFunc.sInt(offset, 64)
instr += str(rtKey) + ", [x" + str(rnKey) + ", #" + str(offset) + "]!"
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey, scale, instr)
def helper_reg_unsignedOffset(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
imm12 = binary[10:22]
opc = binary[8:10]
size = binary[0:2]
wback = False
postIndex = False
scale = utilFunc.uInt(size)
offset = utilFunc.lsl(utilFunc.zeroExtend(imm12, 64), scale)
offset = utilFunc.sInt(offset, 64)
instr += str(rtKey) + ", [x" + str(rnKey) + ", #" + str(offset) + "]"
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey,
scale, instr)
def helper_reg_prei(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
imm9 = binary[11:20]
opc = binary[8:10]
size = binary[0:2]
wback = True
postIndex = False
scale = utilFunc.uInt(size)
offset = utilFunc.signExtend(imm9, 64)
offset = utilFunc.sInt(offset, 64)
instr += str(rtKey) + ", [x" + str(rnKey) + ", #" + str(offset) + "]!"
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey,
scale, instr)
def helper_reg(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
rmKey = utilFunc.getRegKeyByStringKey(binary[11:16])
rnVal = utilFunc.getRegValueByStringkey(binary[22:27], '1')
rmVal = utilFunc.getRegValueByStringkey(binary[11:16], '0')
s = binary[19]
option = binary[16:19]
opc = binary[8:10]
size = binary[0:2]
wback = False
postIndex = False
scale = utilFunc.uInt(size)
if s == '1':
shift = scale
else:
shift = 0
if (option[1:3] == '10'):
rmToPrint = 'w'
elif (option[1:3] == '11'):
rmToPrint = 'x'
instr += str(rtKey) + ", [x" + str(rnKey) + ", " + rmToPrint + str(
rmKey) + ", "
offset, instr = utilFunc.extendReg(rmVal, shift, option, instr, 64)
offset = utilFunc.sInt(offset, 64)
instr += ' #'
if size == '10':
if s == '0':
instr += '0'
else:
instr += '2'
if size == '11':
if s == '0':
instr += '0'
else:
instr += '3'
instr += ']'
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey,
scale, instr)
def helper_reg(binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
rmKey = utilFunc.getRegKeyByStringKey(binary[11:16])
rnVal = utilFunc.getRegValueByStringkey(binary[22:27], '1')
rmVal = utilFunc.getRegValueByStringkey(binary[11:16], '0')
s = binary[19]
option = binary[16:19]
opc = binary[8:10]
size = binary[0:2]
wback = False
postIndex = False
scale = utilFunc.uInt(size)
if s == '1':
shift = scale
else:
shift = 0
if(option[1:3] == '10'):
rmToPrint = 'w'
elif(option[1:3] == '11'):
rmToPrint = 'x'
instr += str(rtKey) + ", [x" + str(rnKey) + ", " + rmToPrint + str(rmKey) + ", "
offset, instr = utilFunc.extendReg(rmVal, shift, option, instr, 64)
offset = utilFunc.sInt(offset, 64)
instr += ' #'
if size == '10':
if s == '0':
instr += '0'
else:
instr += '2'
if size == '11':
if s == '0':
instr += '0'
else:
instr += '3'
instr += ']'
helper_all(binary, opc, size, wback, postIndex, offset, rtKey, rnKey, scale, instr)
def helper_rp(wback, postIndex, binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
rt2Key = utilFunc.getRegKeyByStringKey(binary[17:22])
imm7 = binary[10:17]
l = binary[9]
opc = binary[0:2]
if (l == '1'):
memOp = const.MEM_OP_LOAD
else:
memOp = const.MEM_OP_STORE
signed = (opc[1] != '0')
scale = 2 + utilFunc.uInt(opc[0])
dataSize = 8 << scale
offset = utilFunc.lsl(utilFunc.signExtend(imm7, 64), scale)
offset = utilFunc.sInt(offset, 64)
dbytes = dataSize / 8
address = utilFunc.getRegValueByStringkey(binary[22:27], '1')
address = utilFunc.uInt(address)
if not (postIndex):
address = address + offset
type = binary[7:9]
if (opc == '00'):
r = 'w'
if (opc == '10'):
r = 'x'
if (type == '01'):
#Post-index
instr += " " + r + str(rtKey) + ", " + r + str(rt2Key) + ", [x" + str(
rnKey) + "], #" + str(offset)
if (type == '11'):
#Pre-index
instr += " " + r + str(rtKey) + ", " + r + str(rt2Key) + ", [x" + str(
rnKey) + ", #" + str(offset) + "]!"
if (type == '10'):
#Signed-offset
instr += " " + r + str(rtKey) + ", " + r + str(rt2Key) + ", [x" + str(
rnKey) + ", #" + str(offset) + "]"
if (memOp == const.MEM_OP_STORE):
data1 = utilFunc.getRegValueByStringkey(binary[27:32], '0')
data2 = utilFunc.getRegValueByStringkey(binary[17:22], '0')
utilFunc.storeToMemory(data1, address, dataSize)
utilFunc.storeToMemory(data2, address + dbytes, dataSize)
elif (memOp == const.MEM_OP_LOAD):
data1 = utilFunc.fetchFromMemory(address, dataSize)
data2 = utilFunc.fetchFromMemory(address + dbytes, dataSize)
if (data1 == const.TRAP or data2 == const.TRAP):
utilFunc.finalize_simple(instr)
print "HEY!!! There seems to be a problem - memory location can not be accessed"
print "Moving ahead without executing the instruction"
return
if (signed):
data1 = utilFunc.signExtend(data1, 64)
data2 = utilFunc.signExtend(data2, 64)
utilFunc.setRegValue(rtKey, data1.zfill(64), '0')
utilFunc.setRegValue(rt2Key, data2.zfill(64), '0')
if (wback):
if postIndex:
address = address + offset
address = utilFunc.intToBinary(address, 64)
utilFunc.setRegValue(rnKey, address, '1')
utilFunc.finalize_simple(instr)
def helper_rp(wback, postIndex, binary, instr):
rtKey = utilFunc.getRegKeyByStringKey(binary[27:32])
rnKey = utilFunc.getRegKeyByStringKey(binary[22:27])
rt2Key = utilFunc.getRegKeyByStringKey(binary[17:22])
imm7 = binary[10:17]
l = binary[9]
opc = binary[0:2]
if(l == '1'):
memOp = const.MEM_OP_LOAD
else:
memOp = const.MEM_OP_STORE
signed = (opc[1] != '0')
scale = 2 + utilFunc.uInt(opc[0])
dataSize = 8 << scale
offset = utilFunc.lsl(utilFunc.signExtend(imm7, 64), scale)
offset = utilFunc.sInt(offset, 64)
dbytes = dataSize / 8;
address = utilFunc.getRegValueByStringkey(binary[22:27], '1')
address = utilFunc.uInt(address)
if not(postIndex):
address = address + offset
type = binary[7:9]
if(opc == '00'):
r = 'w'
if(opc == '10'):
r = 'x'
if(type == '01'):
#Post-index
instr += " " + r + str(rtKey) +", " + r + str(rt2Key) + ", [x" + str(rnKey) + "], #" + str(offset)
if(type == '11'):
#Pre-index
instr += " " + r + str(rtKey) +", " + r + str(rt2Key) + ", [x" + str(rnKey) + ", #" + str(offset) + "]!"
if(type == '10'):
#Signed-offset
instr += " " + r + str(rtKey) +", " + r + str(rt2Key) + ", [x" + str(rnKey) + ", #" + str(offset) + "]"
if(memOp == const.MEM_OP_STORE):
data1 = utilFunc.getRegValueByStringkey(binary[27:32], '0')
data2 = utilFunc.getRegValueByStringkey(binary[17:22], '0')
utilFunc.storeToMemory(data1, address, dataSize)
utilFunc.storeToMemory(data2, address + dbytes, dataSize)
elif(memOp == const.MEM_OP_LOAD):
data1 = utilFunc.fetchFromMemory(address, dataSize)
data2 = utilFunc.fetchFromMemory(address + dbytes, dataSize)
if(data1 == const.TRAP or data2 == const.TRAP):
utilFunc.finalize_simple(instr)
print "HEY!!! There seems to be a problem - memory location can not be accessed"
print "Moving ahead without executing the instruction"
return
if(signed):
data1 = utilFunc.signExtend(data1, 64)
data2 = utilFunc.signExtend(data2, 64)
utilFunc.setRegValue(rtKey, data1.zfill(64), '0')
utilFunc.setRegValue(rt2Key, data2.zfill(64), '0')
if(wback):
if postIndex:
address = address + offset
address = utilFunc.intToBinary(address, 64)
utilFunc.setRegValue(rnKey, address, '1')
utilFunc.finalize_simple(instr)
