MICROPROCESSOR AND MICROCONTROLLER

8051 INSTRUCTION SET ADDRESSING MODES

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A CALL instruction allows specifying ____ address in the instruction and calling subroutine within ____ program memory block.
A
2byte, 3K
B
11bit, 2K
C
9bit, 2K
D
1byte, 3K
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -Are PUSH and POP instructions are a type of CALL instructions? Explanation: PUSH and POP instructions are not CALL instructions because in POP and PUSH instructions the pointer does not move to any location specified by its address which is the fundamental of CALL instruction, so it is not a type of CALL instruction.

There is 1 question to complete.