def instr_Jmp(instruction, pointers, fo, assembly_failed):
if len(instruction) < 4:
if len(instruction) < 3:
CustomError.ERR_missingArgument(instruction[-1], '1')
return False
CustomError.ERR_missingArgument(instruction[-1], '2')
return False
topmid_byte_bottom_nibble = jump_flags.get(instruction[1], None)
if topmid_byte_bottom_nibble == None:
CustomError.ERR_invalidArgument(instruction[-1], '1')
return False
if instruction[2][0] != '&':
CustomError.ERR_invalidArgumentType(instruction[-1], '2',
"label reference")
return False
temp = pointers.get(instruction[2], None)
if temp == None:
CustomError.ERR_labelMissing(instruction[-1])
return False
low_bytes = int(temp) * 2
if low_bytes > 65535:
CustomError.ERR_outOfBounds(instruction[-1])
return False
if not assembly_failed:
fo.write("{}{} {}".format("0d0", topmid_byte_bottom_nibble,
"%.4x" % (low_bytes)))
return True
def instr_Call(instruction, pointers, fo, assembly_failed):
if len(instruction) < 3:
CustomError.ERR_missingArgument(instruction[-1], '1')
return False
if instruction[1][0] != '&':
CustomError.ERR_invalidArgumentType(instruction[-1], '1',
"label reference")
return False
temp = pointers.get(instruction[1], None)
if temp == None:
CustomError.ERR_labelMissing(instruction[-1])
return False
low_bytes = int(temp) * 2
if low_bytes > 65535:
CustomError.ERR_outOfBounds(instruction[-1])
return False
if not assembly_failed:
fo.write("{} {}".format("0efe", "%.4x" % (low_bytes)))
return True