WebSo be careful with your pushes and pops! Saving Registers with Push and Pop. You can use push and pop to save registers at the start and end of your function. For example, "rbp" is a preserved register, so you need to save its value before you can use it: push rbp ; save old copy of this register mov rbp,23 mov rax,rbp WebApr 22, 2024 · The MOVX instruction transfers data between the accumulator and external data memory. External memory may be addressed via 16-bits in the DPTR register or via 8-bits in the R0 or R1 registers. When using 8-bit addressing, Port 2 must contain the high-order byte of the address. MOVX @Ri, A.
8085; Why RET doesn
WebOct 24, 2013 · The five flags on the 8080/8085 are Sign, Zero, Carry, Half-carry and Parity. It looks like your program clears all of them. The result of the ANI is not zero, not negative and has odd parity. Also, logical operations like ANI unconditionally clear both carry flags. Actually, the most direct way to set all of them is something like this: Which ... WebThis set of Microprocessor Multiple Choice Questions & Answers (MCQs) focuses on “Stack Structure of 8086/8088”. 1. The stack pointer register contains. a) address of the stack segment. b) pointer address of the stack segment. c) offset of address of stack segment. d) data present in the stack segment. View Answer. cheap cars electronics
Explain PUSH and POP Instructions of 8085 - Shaalaa.com
WebMay 31, 2024 · The IRET will "undo" these actions in reverse order, i.e. Stack I/O and Machine control group – PUSH, POP, IN, HLT. 40. The Instruction Pointer (IP) in an 8086 microprocessor contains the address of the next instruction to be executed. Explain the PUSH and POP instructions of an 8085 microprocessor with example. 28. 12. WebPUSH H indicates that the content of H i.e., 42 stored in 2098H and the content of L i.e., F2 is stored in 2097 H. POP – After completion of this operation this content which are saved in the temporary register are transferred back to the main memory by the operation of … Web6. What is true about Program counter? A. It is an 8-bit register, which holds the temporary data of arithmetic and logical operations. B. When an instruction is fetched from memory then it is stored in the program counter C. It provides timing and control signal to the microprocessor D. It is a 16-bit register used to store the memory address location of the … cut me own throat dibbler