Indicate whether each of the following applies to CISC or RISC by placing either a C (for CISC) or an R (for RISC) in the blank.1. _______ . Fixed-length, easily decoded instruction format.2. _______ . Highly specialized, infrequently used instructions.

What three elements can be used to form the effective address of an operand in memory

Suppose you wanted to implement a control unit for a computer that you are designing. A. Would you use a hardwired implementation or a micro-programmed control unit?  Why?   I would use a micro-programmed control unit for my computer. The reason for this is because micro-programmed control units are easier to handle and make modifications. Also, modern processors that utilize the CISC architecture can convert code to be more RISC-like to be used internally. B. What factors in the computer design would affect your decision?   It depends on my intended plan for the device. If I were to design a personal computer for non-commercial use, I would more than likely implement micro-programmed control units. If I were to design microprocessors for use in embedded systems or mobile devices, I would use the hardwired control unit.

1. Assume AL register 7FH, it would become.. after executed NEG AL instruction. a. 8FH b. 18H с. 81Н 2. The unknown value for ????:B000H=25000H physical address is ......... a. 001A H b. 1A00H с. 100АН 3. A microprocessor has.. . address bus b. bi-directional a. unidirectional с. Both 4. Instruction queue allows up to of instruction code to be pre-fetched. ....... a. 16 bits b. 6 bytes c. 6 bits 5. To activate the address bus or data bus in ADo-AD15 signal the .. should be either logic 1 or 0. a. MN /MX b. RD c. ALE 6. According to Moor's Law.. . a. number of transistors on b. number of transistors on c. number of transistors on an integrated circuit an integrated circuit tripled an integrated circuit not doubles every two years every two years change.

I asked the question before and the answer I got does not makes sense.  My question is why did not we considered the Adder, Shift, ANd, Control when calculation delay time.? Again, it is in Risc-V.

0001 = Load AC from memory 0010 = Store AC to memory 0101 = Add to AC from memory 0011 = Load AC (the accumulator register) from an I/O device 0111 = Store AC to an I/O device With these instructions, a particular I/O device is identified by replacing the 12-bit address portion with a 12-bit device number. Remember that a number ending with a small ‘h’ means the number is a hexadecimal number. What is the hexadecimal string that expresses the following instructions? Load AC from memory location 62h.  Add the contents of memory location 451h to AC.  Store AC to memory location 8h.  Store AC to I/O device number 8h.