0
What else can I help you with?
Which flags effected after SUB B excution in 8085 miro processor?
All flags are affected after the SUB operation to reflect the result of subtraction.
How many flags in microprocessor 8085 are issued by Intel?
5 FLAGS
What are the various flags used in 8085?
there are 5 flags of intel 8085 are: Carry flag(CY), parity flag(P), Auxiliary Carry flag(AC), Zero Flag(Z), Sign flag(S).
Explain difference 8085 and 8086 in detail?
a number (1) because 8085+1=8086
What is slow memory interfacing?
explain how slow memory get interfaced with 8085
What is the use of command MOV A A in 8085 microprocessor?
The MOV A,A instruction in the 8085 does nothing, not even change flags. It only consumes time, specifically four clock cycles plus applicable wait states.
Write a program to set all flags of 8085?
; Exact answer: LXI H, FFFFH push H POP PSW
Microprocessor PREVIOUS question papers for bca 2nd year IN MADRAS UNiversity?
PART - A 10*3=30 1. Define Micro Processor. 2. What is an accumulator. 3. Why Data Bus id Bidirectional? 4. What is Microcomputer? Explain the difference between a microprocessor and microcomputer 5. List the applications of micro computer. 6. What are the advantages of microprocessor based system? 7. Explain the functions of IO/Min 8085. 8. What is Flag? List the flag of 8085. Show the bit positions of various flags in 8085 flag register? 9. Why Address Bus is unidirectional? 10. What are the Interrupts in 8085? PART - B 5*6=30 11. What are Data Transfer Instructions, Write any Instruction. 12. Define the following Terms Compiler, Assembler, Interpreter with example 13. Explain Instructions & Data Format. 14. Explain & Draw a Block Diagram of Computer with the microprocessor as CPU. 15. Explain the Logical Operations. PART - C 4*10=40 16. Explain the Microprocessor Architecture and its operations 17. Explain the various pins of 8085 Microprocessor 18. List the Registers in the 8085 Microprocessor & explain the functions in detail 19. Write a Assembly language program to add two 8 bit numbers 20. Write a Assembly language program to add 16 bit numbers
How compare instruction is used in 8085?
The compare and subtract instructions in the 8085 both subtract one operand from another, and set flags accordingly. The subtract instruction stores the result in the accumulator, while the compare instruction does not - except for the flags, the compare instruction "throws" the result away.
What micro controllers for a digital control system?
for dcs 8086 and 8085 are usually used as base microcontroller as these have indication flags which r signaled to registers
Why does 8085 microprocessor has 8 bit flag register when it has only 5 flags?
The 8085 microprocessor has an 8-bit flag register, even though it only has 5 flags, because all of the registers in the 8085 are 8-bit or 16-bit. In fact, the flags register is considered to be part of the accumulator, as one "register pair", for purposes of stack push/pop and interrupt call/return. Be warned, however, that you should not attempt to change the state of bits stored on the stack and then pop'ing them into AF, because some of the three "unused" bits might be undocumented but actually used, or their meaning might change between different versions of the chip.
Explain the roles of registers in programming?
A register is a temporary high speed storage location for some data, usually contained in the processor's internal hardware design. The accumulator, A in the 8085, has special significance as it can be the target of most arithmetic and logical manipulation instructions. Other registers, such as B in the 8085, can hold temporary values useful during a computation. Some registers, such as HL in the 8085, can hold addresses of memory operands. Special registers, such as SP or PC in the 8085, hold the stack pointer or program counter. Sometimes, internal registers, such as TEMP in the 8085, are used in the internal design of the computer, but they are not directly accessible to the program. Sometimes, registers are combined, such as B and C being treated as one value, BC, in the 8085. This is a case of a 16 bit register. Last, status registers, such as FLAGS in the 8085, hold various things related to processor status, such as the carry flag or various interrupt masks, but they are not generally treated as arbitrary storage of data.
