Architecture HW8

Q5: Fill in the following blanks with appropriate answers (Choose Five Only) 1. The instruction that subtracts 1 from the contents of the specified register/memory location is ..…….….…..………………….. 2. In general, the destination operand of an instruction can be ....... 3. The instruction that supports addition when carry exists is 4. If there is a carry from lowest nibble during addition, ............. flag sets. 5. register is used as a default counter in case of string and loop instructions. 6. In PUSH instruction, after each execution of the instruction, the stack pointer is. ************** **********

computer architecture and organization

An 8051 subroutine is shown below: SUB: RO, #20H @RO , #0 MOV LOOP: MOV INC RO CJNE RO, #80H, LOOP RET a. What does this subroutine do? b. In how many machine cycles does each instruction execute? How many bytes long is each instruction? C. d. Convert the subroutine to machine language. e. How long does this' subroutine take to execute? (Assume 12 M

Supnorting.cxcentions &interruats Select True/False (T/F) for each statement. Exception usually refers to an event outside of the CPU and interrupt refers to an event inside the CPU. ISelect The CPU checks for exceptions/interrupts after every assembly instruction to get to them tast. Select With polled interrupts, the hardware is responsible to identify the source of the event. Select) With vectored interrupts, the hardware is responsible to identify the source of the event. I Setect)

8085 Microprocessor

7.a. Weight and humidity are examples ofA. discrete outputs.B. discrete inputs.C. voltage signals.D. analog quantities. 7.b. What statement best describes the CPU scan?A. The data table is read, the inputs are updated, and the logic is solved.B. The fault table is cleared, the inputs are read, and the outputs are updated.C. The program scans for a "logic OK"; if the bit is set, the scan progresses.D. The input status is read, the program logic is solved, and the outputs are updated.

Q3/(A) False OR True 1- A0-0 and BHE-1 are used as low bank-select signal: 2-AX is 2234 H after executing the following instruction: AAS. If AX-2234H. 3-IP register holds the offset address of the next instruction to be executed. 4- The XLAT instruction in 8086 assembly language is used to perform arithmetic operations between two memory operands. 5- Bus interface unit is responsible form

Please circle whether following statements are True or false.  (a) In Moore machines, more logic may be necessary to decode state into outputs—more gate delays after clock edge. True or False ? (b) The output of a Mealy state machine changes synchronously True or False ?

Q. To interface memory with the microprocessor, connect register the lines of the address bus must be added to address lines of the chip. A. single B. memory C. multiple D. triple

Which of the following are part of the Arduino microcomputer. The answer could be more than one

What Is the jobs done by registers inside a CPU

None

An input I/O device has a polled status register and a data register. The status register is set to one to indicate that input data is ready. Using typical assembly-like code, write a polling routine that transfers each bye of input data to a processor register. If instructions are executed in 500 ns each, calculate the maximum rate at which data could be transferred over this interface.

When an XIC instruction is cleared: a. This enables the next instruction (the rung-condition-out is true). b. This disables the next instruction (the rung-condition-out is false). c. The rung-condition-out is not scanned. d. The rung-condition-out is has to have an OTL.

Q.4. Answer (only Two) of the followings: A. Draw the logic circuit and waveform of the 4-bits SISO to shift the number (1001) into shift register Assume the register is initially clear. B. Design M16 Asynchronous counter.

..The instruction SUB AX, BX, gives the result of ... In register. Explain the given question with an example. Not just copy paste answer.

2 (a) Determine the control word ICW2 require for PIC controller so that IRQ0 to IRQ7 correspond to type numbers 30H to 37H , specify the memory location from which the processors will fetch interrupt vectors.

Choose the right answer for both questions :

Question No. 6 Explain the working of 7-Segment Display. What it can display and how logic reduction is carried out for its operation.

Given a 8-bit number at memory location 2050H. Write 8085 instruction to move the value stored at the following locations:  Register B Accumulator 2052H Write a single program and show register and accumulator screenshot and also attach memory view. In sim8085 software.

(a) Write the difference between digital and analog system? (b) Mention the advantages of digital System? (c) What is a binary coded decimal? (d) Difference between Positive Logic and Negative Logic pulses? (e) Differentiate decimal number system and octal number system?

1. Several programs run on multiple processors known as: b. Parallel processing program d. Shared Memory Processor (SMP) a. Task-level parallelism. c. Cluster

PARTA d, e ONLY!