def returnMode(line,variables):
if(line['length'] > 0):
# take the labels out of lines
if (line['data'][0].endswith(':')):
line['length'] -= 1
line['data'] = line['data'][1:]
# only process lines that aren't just labels or variables
if(line['length'] > 0 and line['data'][0].lower() != 'define'):
opcode = line['data'][0].upper()
address = 'null'
if (line['length']) == 2:
address = line['data'][1]
# replace variables with their values
for variable in variables.keys():
if variable in address:
address = address.replace(variable, variables[variable])
if (opcode in opcodes.keys()):
if (line['length'] == 1):
return 'SNGL'
elif (line['length'] == 2):
# immediate
if(address.startswith('#')):
return 'IMM'
elif (address.startswith('(')):
# indexed indirect
if address[4] == ',':
return 'INDX'
# indirect index
elif address[5] == ',':
return 'INDY'
# indirect
else:
return 'IND'
elif (address.startswith('$')):
operandLength = len(address)
# absolute X and Y
if (operandLength == 7):
mode = 'ABS' + address[6].upper()
return mode
# zero page
elif (operandLength == 3):
return 'ZP'
# zero page X and Y
elif (address[3] == ','):
mode = 'ZP' + address[4].upper()
return mode
# absolute
else:
return 'ABS'
elif (opcode[0] == "J"):
return 'ABS'
elif (opcode in ['BCC','BCS','BEQ','BMI','BNE','BPL','BVC','BVS']):
return 'BRA'
else:
raise ValueError('Problem with address in this line: ',line)
else:
raise ValueError('Invalid line length')
else:
raise ValueError('No opcode found')
def returnMode(line, variables):
if (line['length'] > 0):
# take the labels out of lines
if (line['data'][0].endswith(':')):
line['length'] -= 1
line['data'] = line['data'][1:]
# only process lines that aren't just labels or variables
if (line['length'] > 0 and line['data'][0].lower() != 'define'):
opcode = line['data'][0].upper()
address = 'null'
if (line['length']) == 2:
address = line['data'][1]
# replace variables with their values
for variable in variables.keys():
if variable in address:
address = address.replace(variable,
variables[variable])
if (opcode in opcodes.keys()):
if (line['length'] == 1):
return 'SNGL'
elif (line['length'] == 2):
# immediate
if (address.startswith('#')):
return 'IMM'
elif (address.startswith('(')):
# indexed indirect
if address[4] == ',':
return 'INDX'
# indirect index
elif address[5] == ',':
return 'INDY'
# indirect
else:
return 'IND'
elif (address.startswith('$')):
operandLength = len(address)
# absolute X and Y
if (operandLength == 7):
mode = 'ABS' + address[6].upper()
return mode
# zero page
elif (operandLength == 3):
return 'ZP'
# zero page X and Y
elif (address[3] == ','):
mode = 'ZP' + address[4].upper()
return mode
# absolute
else:
return 'ABS'
elif (opcode[0] == "J"):
return 'ABS'
elif (opcode in [
'BCC', 'BCS', 'BEQ', 'BMI', 'BNE', 'BPL', 'BVC',
'BVS'
]):
return 'BRA'
else:
raise ValueError('Problem with address in this line: ',
line)
else:
raise ValueError('Invalid line length')
else:
raise ValueError('No opcode found')
def getHexFromLines(parsedLines,labels,variables):
print("Labels:", labels)
print("Variables:", variables)
hexOutput = ""
for line in parsedLines:
if(line['length'] > 0):
# take the labels out of lines
if (line['data'][0].endswith(':')):
line['length'] -= 1
line['data'] = line['data'][1:]
# only process lines that aren't just labels or variables
if(line['length'] > 0 and line['data'][0].lower() != 'define'):
opcode = line['data'][0].upper()
address = 'null'
if (line['length']) == 2:
address = line['data'][1]
# replace variables with their values
for variable in variables.keys():
if variable in address:
address = address.replace(variable, variables[variable])
print("Opcode", opcode, "Address", address)
if (opcode in opcodes.keys()):
# implicit
if (line['length'] == 1):
print((opcodes[opcode]['SNGL']) + ' ')
hexOutput += (opcodes[opcode]['SNGL']) + ' '
elif (line['length'] == 2):
# immediate
if(address.startswith('#')):
if(address[1] == '$'):
print(opcodes[opcode]['IMM'] + ' ' + padHex(address[2:]))
hexOutput += opcodes[opcode]['IMM'] + ' ' + padHex(address[2:])
else:
print(opcodes[opcode]['IMM'] + ' ' + padHex(address[1:]))
hexOutput += opcodes[opcode]['IMM'] + ' ' + padHex(address[1:])
elif (address.startswith('(')):
# indexed indirect
if address[4] == ',':
print(opcodes[opcode]['INDX'] + ' ' + address[2:4] + ' ')
hexOutput += opcodes[opcode]['INDX'] + ' ' + address[2:4] + ' '
# indirect index
elif address[5] == ',':
print(opcodes[opcode]['INDY'] + ' ' + address[2:4] + ' ')
hexOutput += opcodes[opcode]['INDY'] + ' ' + address[2:4] + ' '
# indirect
else:
print(opcodes[opcode]['IND'] + ' ' + address[4:6] + ' ' + address[2:4] + ' ')
hexOutput += opcodes[opcode]['IND'] + ' ' + address[4:6] + ' ' + address[2:4] + ' '
elif (address.startswith('$')):
operandLength = len(address)
# absolute X and Y
if (operandLength == 7):
mode = 'ABS' + address[6].upper()
print(opcodes[opcode][mode] + ' ' + address[3:5] + ' ' + address[1:3] + ' ')
hexOutput += opcodes[opcode][mode] + ' ' + address[3:5] + ' ' + address[1:3] + ' '
# zero page
elif (operandLength == 3):
print(opcodes[opcode]['ZP'] + ' ' + padHex(address[1:]))
hexOutput += opcodes[opcode]['ZP'] + ' ' + padHex(address[1:])
# zero page X and Y
elif (address[3] == ','):
mode = 'ZP' + address[4].upper()
print(opcodes[opcode][mode] + ' ' + address[1:3] + ' ')
hexOutput += opcodes[opcode][mode] + ' ' + address[1:3] + ' '
# absolute
else:
print(opcodes[opcode]['ABS'] + ' ' + padHex(address[3:]) + address[1:3] + ' ')
hexOutput += opcodes[opcode]['ABS'] + ' ' + padHex(address[3:]) + address[1:3] + ' '
elif (address in labels.keys()):
# print ("we\'ve got a label")
if (opcode[0] == "J"):
# Jump to an absolute point (this doesn't account for indirect jumps)
byteDiff = labels[address]
hexByteDiff = str(toHex(byteDiff, 16)[2:])
# take starting position 0x0600 into account
if (len(hexByteDiff) < 3):
print(opcodes[opcode]['ABS'] + ' ' + padHex(hexByteDiff) + '06 ')
hexOutput += opcodes[opcode]['ABS'] + ' ' + padHex(hexByteDiff) + '06 '
else:
print(opcodes[opcode]['ABS'] + ' ' + padHex(hexByteDiff))
hexOutput += opcodes[opcode]['ABS'] + ' ' + padHex(hexByteDiff)
else:
# relative addressing with label
byteDiff = labels[address] - line['bytePosition'] - 2
print(opcodes[opcode]['BRA'] + ' ' + padHex(str(toHex(byteDiff, 8)[2:])))
hexOutput += opcodes[opcode]['BRA'] + ' ' + padHex(str(toHex(byteDiff, 8)[2:]))
else:
raise ValueError('Problem with address in this line: ',line)
else:
raise ValueError('Invalid line length')
else:
raise ValueError('No opcode found')
return (hexOutput.strip())
def getHexFromLines(parsedLines, labels, variables):
print("Labels:", labels)
print("Variables:", variables)
hexOutput = ""
for line in parsedLines:
if (line['length'] > 0):
# take the labels out of lines
if (line['data'][0].endswith(':')):
line['length'] -= 1
line['data'] = line['data'][1:]
# only process lines that aren't just labels or variables
if (line['length'] > 0 and line['data'][0].lower() != 'define'):
opcode = line['data'][0].upper()
address = 'null'
if (line['length']) == 2:
address = line['data'][1]
# replace variables with their values
for variable in variables.keys():
if variable in address:
address = address.replace(variable,
variables[variable])
print("Opcode", opcode, "Address", address)
if (opcode in opcodes.keys()):
# implicit
if (line['length'] == 1):
print((opcodes[opcode]['SNGL']) + ' ')
hexOutput += (opcodes[opcode]['SNGL']) + ' '
elif (line['length'] == 2):
# immediate
if (address.startswith('#')):
if (address[1] == '$'):
print(opcodes[opcode]['IMM'] + ' ' +
padHex(address[2:]))
hexOutput += opcodes[opcode][
'IMM'] + ' ' + padHex(address[2:])
else:
print(opcodes[opcode]['IMM'] + ' ' +
padHex(address[1:]))
hexOutput += opcodes[opcode][
'IMM'] + ' ' + padHex(address[1:])
elif (address.startswith('(')):
# indexed indirect
if address[4] == ',':
print(opcodes[opcode]['INDX'] + ' ' +
address[2:4] + ' ')
hexOutput += opcodes[opcode][
'INDX'] + ' ' + address[2:4] + ' '
# indirect index
elif address[5] == ',':
print(opcodes[opcode]['INDY'] + ' ' +
address[2:4] + ' ')
hexOutput += opcodes[opcode][
'INDY'] + ' ' + address[2:4] + ' '
# indirect
else:
print(opcodes[opcode]['IND'] + ' ' +
address[4:6] + ' ' + address[2:4] + ' ')
hexOutput += opcodes[opcode][
'IND'] + ' ' + address[
4:6] + ' ' + address[2:4] + ' '
elif (address.startswith('$')):
operandLength = len(address)
# absolute X and Y
if (operandLength == 7):
mode = 'ABS' + address[6].upper()
print(opcodes[opcode][mode] + ' ' +
address[3:5] + ' ' + address[1:3] + ' ')
hexOutput += opcodes[opcode][
mode] + ' ' + address[3:5] + ' ' + address[
1:3] + ' '
# zero page
elif (operandLength == 3):
print(opcodes[opcode]['ZP'] + ' ' +
padHex(address[1:]))
hexOutput += opcodes[opcode][
'ZP'] + ' ' + padHex(address[1:])
# zero page X and Y
elif (address[3] == ','):
mode = 'ZP' + address[4].upper()
print(opcodes[opcode][mode] + ' ' +
address[1:3] + ' ')
hexOutput += opcodes[opcode][
mode] + ' ' + address[1:3] + ' '
# absolute
else:
print(opcodes[opcode]['ABS'] + ' ' +
padHex(address[3:]) + address[1:3] + ' ')
hexOutput += opcodes[opcode][
'ABS'] + ' ' + padHex(
address[3:]) + address[1:3] + ' '
elif (address in labels.keys()):
# print ("we\'ve got a label")
if (opcode[0] == "J"):
# Jump to an absolute point (this doesn't account for indirect jumps)
byteDiff = labels[address]
hexByteDiff = str(toHex(byteDiff, 16)[2:])
# take starting position 0x0600 into account
if (len(hexByteDiff) < 3):
print(opcodes[opcode]['ABS'] + ' ' +
padHex(hexByteDiff) + '06 ')
hexOutput += opcodes[opcode][
'ABS'] + ' ' + padHex(
hexByteDiff) + '06 '
else:
print(opcodes[opcode]['ABS'] + ' ' +
padHex(hexByteDiff))
hexOutput += opcodes[opcode][
'ABS'] + ' ' + padHex(hexByteDiff)
else:
# relative addressing with label
byteDiff = labels[address] - line[
'bytePosition'] - 2
print(opcodes[opcode]['BRA'] + ' ' +
padHex(str(toHex(byteDiff, 8)[2:])))
hexOutput += opcodes[opcode][
'BRA'] + ' ' + padHex(
str(toHex(byteDiff, 8)[2:]))
else:
raise ValueError(
'Problem with address in this line: ', line)
else:
raise ValueError('Invalid line length')
else:
raise ValueError('No opcode found')
return (hexOutput.strip())
