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sbb instruction this instruction is used to subtract the contents of register or memory location with carry flag from
sui subtract immediate i instructions the 8 bit data specified in the instruction is directly subtracted from the
zero flag since results is non zero in this example zero flag is
sign flag since d7 bit in the results is 0sign flag is reset this also shown that the results is
carry flag cy is reset as explained above in chapter 1 we have sen in the 2 complement methods of subtraction that the
sub subtract instructionthis instruction is used to subtract the contents of any register or memory location from the
dad double add instruction the contents of register rp are added to the contents of hl register pair and results of addition is
aci add immediate with carry instructionsimilar to adc instruction 8 bit data specified in the instruction and carry are
add register and carry with accumulator the contents of register r and the carry flag are added to the contents of the
adc instructionthis instruction is used to add the contents of any register of any register memory location and carry flag with
adi add immediate instruction the bit data specified in the instruction is directly added with contents of accumulator
add the contents of register this instruction is used to add the contents of register r with the contents of accumulator and
add instructionthis instruction use to add contents of any register or memory location with the contents of accumulator there
arithmetic operationsvarious types of arithmetic operations like addition subtraction increment and decrement are performed in 8085
out output instruction this instruction is used send data byte stored in the accumulator to the output port whose
input output operations many times microprocessor has to accept data from input port and send data to output port to interact
shld store hl pair direct instruction this instruction is used to store the contents of hl register pair to memory address
lhld load hl pair direct instructionthis instruction is used to copy the content of memory location specified by
lda load accumulator direct instructionthis instruction is used to copy data from memory whose address is directly specified in
stax store accumulator indirect instruction this instruction is used to copy data from accumulator to the memory location pointed
ldax load accumulator indirect instruction this instruction is used to copy data from memory location pointed by register pair
cpopy 16 bit data register pair example copy 16 bit data 3 e 21h in register pair bcsolution the statement islxi b
lki load register pair immediate instruction this instruction is used to copy or load 16 bit data specified in the
8 bit data to memorythis form of the instruction is used to copy 8 bit data directly to the memory location pointed
8 bit data to register this form of the instruction is used to copy 8 bit data directly to the register location specified