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Register Organization of 8086
8086 has a great set of registers containing special purpose and general purpose registers. All the 8086 resisters are 16-bit registers. The general purpose registers, may be utilized as either16-bit registers8 or -bit registers. The general purpose registers are either used for holding variables, data and intermediate results temporarily or for the other purposes like as counter or for storing offset address for some specific addressing modes etc. The special purpose registers are utilized as pointers, segment registers, offset storage registers for particular addressing modes or asindex registers. We will categorize the register set into 4 groups that are: General data Registers, Segment Registers, Pointer ad Index Registers, Flag Registers.
what is the hex value in ax after executing the instructions ax= 1E8A bx=4080 add al,bl sub ah,bh
RET : Return from the Procedure:- At each CALL instruction, the register IP and register CS of the next instruction is pushed to stack, before the control is transferred to the
) What is the difference between re-locatable program and re-locatable data?
ORG : Origin:- The ORG directive directs the assembler to begin the memory allotment for the specific segment, code or block from the declared address in the ORG statement. W
SCAS : Scan String Byte or String Word:- This instruction scans a string of words or byte for an operand word or byte specified in the register AL or register AX. The string i
Pin Description of 8086 The microprocessor 8086 is a 16-bit CPU available in 3 clock rates, for example 5, 8 and 10 MHz, packaged in a40 pin CERDIP or plastic package. The 8
bello need help with a final project , I have to do a presentation on a digital stop watch , but I have to use edsim51 to make it wondering if you guys can help me
External Hardware-Interrupts External hardware-interrupts are generated by controllers of external devices or coprocessors and are connected to the processor pin for Non Mask a
Logical Instruction : This type of instructions is utilized for carrying out the bit by bit shift, basic logical operations or rotate. All of the condition code flags are affe
to separate positive and negative numbers
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