Org-proc-assemblers directive-microprocessor, Assembly Language

Assignment Help:

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. Whereasstarting the assembly process for a module, the assembler initialises a location counter to keep track of the allotted addresses for the module. If the ORG statement is not written in program, the location counter is initialised to 0000. If an ORG 200H statement is there at the beginning of the code segment of that module, then the code will begin from 200H address in code segment. In other term, the location counter willinitialise to the address 0200H instead of 0000H. Therefore, the code for different segments andmodules may be located in the available memory as required by the programmer. The ORG directive can even be utilized with data segments in similar way.

PROC: Procedure:-

The PROG directive marks the start of a named process in the statement. The types NEAR or FAR mention the type of the procedure, for example. Whether it is to be called by the main program located within 64K of physical memory or not. For instance, the statement RESULT PROC NEAR marks the start of a routine RESULT that is to be called by a program located in the similar segment of memory. The FAR directive which is used for the procedures to be called by the programs located in different segments of memory. The example statements are following:

Example :

RESULT    PROC    NEAR ROUTINE PROC            FAR

 


Related Discussions:- Org-proc-assemblers directive-microprocessor

Assembling a program-microprocessor, Assembling a program Microsoft Ass...

Assembling a program Microsoft Assembler MASM is one of the simple to use and famous assemblers.  All the references and discussions in this section are belonging to the MASM.

Logical instruction-microprocessor, Logical Instruction : This type of...

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

16f877 7seg display, do you have experts that know 4 digit 7_Seg dispaly

do you have experts that know 4 digit 7_Seg dispaly

Program, Write an application that does the following: (1) fill an array wi...

Write an application that does the following: (1) fill an array with 50 random integers; (2) loop through the array, displaying each value, and count the number of negative values;

Cmp-arithmetic instruction-microprocessor, CMP: Compare: - This instructio...

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

Program that will compute and output tuition cost, Write an assembly progra...

Write an assembly program that will compute and output tuition cost: a. accept keyboard input of the number of credit hours taken b. accept keyboard input of the type of classes 1

Sub-arithmetic instruction-microprocessor, SUB: Subtract :- The subtract in...

SUB: Subtract :- The subtract instruction subtracts the source operand from destination operand and result is left in the destination operand. Source operand might be memory locati

Instruction formats-microprocessor, Instruction Formats A machine langu...

Instruction Formats A machine language instruction format has 1 or more number of fields linked with it. The first field is known as operation code field or op code field, whic

Merge Sort, Write a program to merge two sorted arrays to create a third so...

Write a program to merge two sorted arrays to create a third sorted array containing all values from the two original arrays. Merge is a key component to the mergesort algorithm.

Iret-loop-unconditional branch instruction-microprocessor, IRET : Return f...

IRET : Return from ISR:- When an interrupt service routine is called, before transferring control to it, the IP, CS  register and flag registers are stored in the stack to ment

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