RISC.zip_risc_risc-v

def isSignedImmediateOperandOverFlow12bits(num) -> bool: """ This function is to check 12-bit signed number is overflow. :param num: :return bool: """ if num <= 4095 and num >= -4096 : return False else : return True def isUnsignedImmediateOperandOverFlow12bits(num) -> bool : """ This function is to check 12-bit unsigned number is overflow. :param num: :return bool: """ if num >= 0 and num <= 4095 : return False else : return True def isSignedImmediateOperandOverFlow20bits(num) -> bool : """ This function is to check 20-bit signed number is overflow. :param num: :return bool: """ if num >= -1048576 and num <= 1048575 : return False else : return True def isUnsignedImmediateOperandOverFlow20bits(num) -> bool : """ This function is to check 20-bit unsigned number is overflow. :param num: :return bool: """ if num >= 0 and num <= 1048575 : return False else : return True def isSignedImmediateOperandOverFlow32bits(num) -> bool : """ This function is to check 32-bit signed number is overflow. :param num: :return bool: """ if num >= -4294967296 and num <= 4294967295 : return False else : return True def isUndefinedRegister(rs) -> bool : """ This function is to check if the variable is undefined. :param rs: :return bool: """ if rs: return False else : return True def ifhex(immediate) -> bool : """ This function is to check if the immediate number user entered is a hex number. :param immediate: :return bool: """ if immediate[0] == '0' and immediate[1].lower() == 'x' : return True else : return False def checkInstructionResResImm(listInst, ifSignedNumber) : """ This function is to check the Instruction if is like the format 'ADDI rs1, rs2, 0xAFF'. It check four aspects : 0. if enter wrong number of variables 1. if enter the undefined register 2. if enter a hex(16进制) 3. if enter an overflow immediate operand(signed and unsigned number) :param listInst: :return: """ if len(listInst) == 3 : if not isUndefinedRegister(listInst[0]) : if not isUndefinedRegister(listInst[1]) : if ifhex(listInst[2]) : if ifSignedNumber == 1 : if not isSignedImmediateOperandOverFlow12bits(int(listInst[2], 16)) : return True else : print("The immediate operand(between -0x1000 and 0xFFF) is overflow. ") return False elif ifSignedNumber == 0: if not isUnsignedImmediateOperandOverFlow12bits(int(listInst[2], 16)) : return True else : print("The immediate operand(between 0x0 and 0xFFF) is overflow. ") return False else : print("The immediate operand should be a hex.") return False else : print("The second register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The destination register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The instruction is not correct. The format is like ADDI rs3, rs1, 0xAFF") return False def checkInstructionResResRes(listInst) : """ This function is to check the Instruction if is like the format 'ADD rs1, rs2, rs3'. It check two aspects : 0. if enter wrong number of variables 1. if enter the undefined register :param listInst: :return: """ if len(listInst) == 3 : if not isUndefinedRegister(listInst[0]) : if not isUndefinedRegister(listInst[1]) : if not isUndefinedRegister(listInst[2]) : return True else : print("The third register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The second register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The destination register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The instruction is not correct. The format is like ADDI rs3, rs1, 0xAFF") return False def checkInstructionResRes(listInst) : """ This function is to check the Instruction if is like the format 'BEQ rs1, rs2'. It checks two aspects : 0. if enter wrong number of variables 1. if enter the undefined register :param listInst: :return bool: """ if len(listInst) == 2 : if not isUndefinedRegister(listInst[0]) : if not isUndefinedRegister(listInst[1]) : return True else : print("The second register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The first register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The instruction is not correct. The format is like BEQ rs1, rs2.") return False def checkInstructionRes(listInst) : """ This function is to check the Instruction if is like the format 'RDCYCLEH RDS'. It checks two aspects : 0. if enter wrong number of variables 1. if enter the undefined register :param listInst: :return bool: """ if len(listInst) == 1 : if not isUndefinedRegister(listInst[0]) : return True else : print("The register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The instruction is not correct. The format is like RDCYCLEH RDS.") return False def checkInstructionResAdd(listInst) : """ This function is to check the Instruction if is like the format 'LW rs1, #0'. It check three aspects : 0. if enter wrong number of variables 1. if enter the undefined register 2. if enter the undefined memory address :param listInst: :return: """ if len(listInst) == 2 : if not isUndefinedRegister(listInst[0]) : if listInst[1] == '#0' or listInst[1] == '#1' or listInst[1] == '#2': return True else : print("The address you entered is undefined. Please enter #0, #1 or #2.") return False else : print("The register you entered is undefined. Please enter rs1, rs2 or rs3.") return False else : print("The instruction is not correct. The format is like LOAD rs1, #0.") return False def checkInstructionAddRes(listInst) : """ This function is to check the Instruction if is like the format 'SW #0, RS1'. It checks three aspects : 0. if enter wrong number of variables 1. if enter the undefined register 2. if enter the undefined memory address :param listInst: :return: """ if len(listInst) == 2 : if not isUndefinedRegister(listInst[1]) : if listInst[0] == '#0' or listInst[0] == '#1' or listInst[0] == '#2': return True else : print("The address you entered is undefined. Please enter #0, #1 or #2.") return False else : print("The register you en