Computer Architecture

Here, each operand datum is two words long with the low order word followed by the order word in 8086 processor.

The output is high only when any one of the inputs were high and output is low if both inputs are at the same logic.

It consists of continually examining the status of an interface and performing an input/output with the interface in 8086 processor.

It requires two Ex-OR gate for sum generation and two AND gates, one Ex-OR gate and one OR gate for the carry generation.

This register is used to store 8 bit data and to perform arithmetic and logical operations in 8085 processor.

This signal appears in a machine cycle to advise the external circuitry that the AD0 -AD7 lines contain the lower 8 bits of a memory address in 8085 processor.

Here, the output is high only when all inputs are high at the same time

It has a typically fast update period but a disproportionately slow step recovery.

This logic circuit is to detect the presence of a specified combination of bits on its inputs and to indicate that presence by a specified output level.

These lines indicate which direction the 8085 microprocessor expects to pass data between itself and the external data bus.

This flag is set if a result is out of range in 8086 processor.

The output is high any time at least one of its inputs is high.

This logic circuit adds two 4-bit BCD code groups, using straight binary addition.

This may be useful in I/O operations with serial devices, or anyplace that error checking is to be done in 8085 processor.

This is an unmaskable interrupt with a fixed vector in 8085 processor.

Here, the output voltage is the inverted sum of all the input voltage.

Here, each operand datum occupies one word, with its low order part being in the first byte and its high order part being in the second byte in 8086 processor.

Here, the output is ON only when both the inputs are ON or OFF.

It causes the computer to cease its operations in 8086 processor.

It takes data from the one input line and distributes it to output lines.

Here, the register pair contains the high order byte of the address in the first and the low order byte of the address in the second in 8085 processor.

Here, the counter will receive a low signal on the active low LOAD input, causing it to reset to 00000000 on the next clock pulse.

These provide connection for an external frequency determining circuit to feed the 8085's clock.

The calibration drift delimma problem is solved and the solution is found in a design variation called the dual slope converter.

Here, the instruction indirectly specifies the address of the data by referring to a register pair for the absolute address in 8085 processor.

Here, the register monitors the comprator's output to see if the binary count is less than or greater than the analog signal input, adjusting the bit values accordingly.

Here, the data pattern contained within the shift register will recirculate as long as clock pulses are applied.

This flag is set to a 1 by the instruction just ending if a carry occurred from  4th bit i.e 0, 1, 2, 3rd bit of the A register during the instruction's execution in 8085 processor.

Here, the series of comparators, each one compares the input signal with a unique reference voltage.

This flag is used by the string manipulation instructions in 8086 processor.