assembly

In a given 8-bit general purpose micro-controller there are following flags. C-Carry, A-Auxiliary Carry, O-Overflow flag, P-Parity (0 for even, 1 for odd) R0 and R1 are the two gen...

A portion of the main program to call a subroutine $$SUB$$ in an $$8085$$ environment is given below: $$\eqalign{ & LXI\,\,\,\,\,\,\,\,\,\,\,\,\,D\,\,\,DISP \cr & LP\,\,\,\,\,\,\,\...

In $$8085$$ microprocessor, the contents of the Accumulator, after the following instructions are executed will become $$\eqalign{ & XRA\,\,\,A \cr & MVI\,\,\,B\,\,\,F0\,\,\,H \cr...

An input device is interfaced with Intel $$8085$$ $$A$$ microprocessor as memory mapped $${\rm I}/O,$$ the address of the device is $$2500H.$$ In order to input data from the devic...

In an $$8085$$ $$A$$ microprocessor based system, it is desired to increment the contents of memory location whose address is available in $$(D,E)$$ register pair and store the res...

The $$8085$$ assembly language instruction that stores the content of $$H$$ and $$L$$ registers into the memory locations $$2050H$$ and $$2051H,$$ respectively, is

The following program is written for an $$8085$$ microprocessor to add two bytes located at memory addresses $$1FFE$$ and $$1FFF$$ $$\eqalign{ & LXI\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,...

In an $$8085$$ microprocessor, after the execution of $$XRA$$ $$A$$ instruction