1. Obtain an 8-bit CPU working circuit file ftp/pub/class/301/ftp/8bitcpu.cct The circuit just obtained is a 8 bit version of the 1 bit CPU we built in last lab with a few additions: there is now a 256 x 8 bit memory attached to the bus through a Memory Address Register(MAR) there is now a Program Counter(PC) with a built in increment by one function - the ALU has been expanded to perform the invert operation on the Accumulator(ACC) all the switches have been grouped into one area to simulate a control unit To get a feel for the circuit before more details are examined, do the following: load the number 8 into hemory location 2 nove (the contents in memory location 2 to the PC Increment the PC Write down the signals with the microinstructions to hand- 2. Execute the program (Hand in) a) Write out the equivalent assembly language anemonics of the following machine language code: Location Contents Assembly Language Mnemonics HERRE 10099001 09818112 00000101 00001000 Load the preceding program (in machine code) to the memory. Pre-load value 1 in the register preload in the memory Location 8. Make sure the PC points to the beginning of the program Write out the microinstructions necessary execute the program Hand in the procedures used in the different slegs including the equivalent assembly language memonics and Microinstructions needed to execute the progra. ALSO remember to hand in the answers to the following two questions. 4. Implement the following tasks with your enhanced 8-bit CPU, remember to pre-load the registers or memory when needed: 1) Write out and hand in the microinstructions to perform this operation XOR #5.(C) including the machine code and how you load it to the memory Pre-load the registers or memory when needed For example: Load Beeeeee to the register Load Beeeeeee to the Itemory location 3 2) Write out and land in the crois leuctions to perform the operation OR 5,8 including the machine code and hw you loed it le Pre-load the register's or Hemory when For example: Load Bee380 to the remar Lead eeee1918 Le the memory Questions (hand in the answers) 1) Describe the purpose at the 3->8 Coder 2). Describe how the RAM chip control signals are used 1. Obtain an 8-bit CPU working circuit file ftp/pub/class/301/ftp/8bitcpu.cct The circuit just obtained is a 8 bit version of the 1 bit CPU we built in last lab with a few additions: there is now a 256 x 8 bit memory attached to the bus through a Memory Address Register(MAR) there is now a Program Counter(PC) with a built in increment by one function - the ALU has been expanded to perform the invert operation on the Accumulator(ACC) all the switches have been grouped into one area to simulate a control unit To get a feel for the circuit before more details are examined, do the following: load the number 8 into hemory location 2 nove (the contents in memory location 2 to the PC Increment the PC Write down the signals with the microinstructions to hand- 2. Execute the program (Hand in) a) Write out the equivalent assembly language anemonics of the following machine language code: Location Contents Assembly Language Mnemonics HERRE 10099001 09818112 00000101 00001000 Load the preceding program (in machine code) to the memory. Pre-load value 1 in the register preload in the memory Location 8. Make sure the PC points to the beginning of the program Write out the microinstructions necessary execute the program Hand in the procedures used in the different slegs including the equivalent assembly language memonics and Microinstructions needed to execute the progra. ALSO remember to hand in the answers to the following two questions. 4. Implement the following tasks with your enhanced 8-bit CPU, remember to pre-load the registers or memory when needed: 1) Write out and hand in the microinstructions to perform this operation XOR #5.(C) including the machine code and how you load it to the memory Pre-load the registers or memory when needed For example: Load Beeeeee to the register Load Beeeeeee to the Itemory location 3 2) Write out and land in the crois leuctions to perform the operation OR 5,8 including the machine code and hw you loed it le Pre-load the register's or Hemory when For example: Load Bee380 to the remar Lead eeee1918 Le the memory Questions (hand in the answers) 1) Describe the purpose at the 3->8 Coder 2). Describe how the RAM chip control signals are used