Cmp-arithmetic instruction-microprocessor, Assembly Language

Assignment Help:

CMP: Compare: - This instruction compares the source operand, which can be a register or memory location an immediate data with a destination operand that might be a register or a memory location. For the purpose of comparison, it subtracts the  source  operand  from  the destination  operand  but does  not stock up the result anywhere. The flags are affected and depending on the result of the subtraction. If both of the operands are equal to zero flag is set. If the source operand is higher than the destination operand, carry flag is set or else is reset. The instance of this instruction are following:

Example :

1. CMP      BX,         0100H          Immediate

2. CMP      0100                          Immediate [AX implicit]

3. CMP      [5000H],OIOOH          Direct

4. CMP      BX,         [SI]               Register indirect

5. CMP      BX,         CX                Register

 


Related Discussions:- Cmp-arithmetic instruction-microprocessor

Input output memory mapped-microprocessor, Memory Mapped I/O Memory I/O...

Memory Mapped I/O Memory I/O devices are mapped into the system memory map with ROM and RAM. To access a hardware  device, simply write or  read  to  those  'special'  addresse

Lods-stos-string manipulating instruction-microprocessor, LODS : Load Stri...

LODS : Load String Byte or String Word:- The LODS instruction loads AL/AX register by the content of a string pointed to by DS:SI register pair. The SI is automatically modifie

Implemented with an arm assembly language program, The problem to be solved...

The problem to be solved and implemented with an ARM assembly language program You are asked to do some image processing on an image composed of characters shaped in For exa

Interrupt-microprocessor, Interrupt When the CPU detects an interrupt s...

Interrupt When the CPU detects an interrupt signal, it stops activity of current and jumps to a special routine, known an interrupt handler. This handler then detects why the i

Copy a string backwards, I can get it to copy the string but can''t get it ...

I can get it to copy the string but can''t get it to reverse it.

Pointer(ptr)-assemblers directive-microprocessor, PTR : Pointer:- The p...

PTR : Pointer:- The pointer operator which is used to declare the type of a variable, label or memory operand. The operator PTR is prefixed by either WORD or BYTE. If the prefi

Minecraft/Terminal issues, I am running a small minecraft server off of my ...

I am running a small minecraft server off of my old mac mini, and am having a big issue. My computer isn''t very good, and even just running this server is an issue. I use a comma

Conditional branch instruction-microprocessor, Conditional branch Instructi...

Conditional branch Instruction When these type of instructions are executed, they transfer control of execution to the address mention relatively in the instruction, provided t

Queue operation-microprocessor, Queue Operation :   RQ/CT0, RQ...

Queue Operation :   RQ/CT0, RQ/G1-Request/Grant:   These pins are utilized by other local bus masters, in themaximum mode, to force the processor to release the loca

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd