Das-arithmetic instruction-microprocessor, Assembly Language

Assignment Help:

DAS: Decimal Adjust after Subtraction:- This instruction converts the result of subtraction operation of 2 packed BCD numbers to a valid BCD number. The subtraction operation has to be only in the AL. If the lower nibble of AL is higher than the value 9, this instruction will subtract 06 from lower nibble of the AL. If the output of subtraction operation sets the carry flag or if the upper nibble is higher than value 9, it subtracts 60H from the AL. This instruction modifies the CF, AF, PF, SF and ZF flags. The OF is not defined after DAS instruction. The instance is following:

Example :

1988_DAS.jpg


Related Discussions:- Das-arithmetic instruction-microprocessor

Program, write a program assembly language for adding two 3*3 matrix

write a program assembly language for adding two 3*3 matrix

Hashing, what is double hashing

what is double hashing

Stand alone system - assembly language program, Develop an assembly languag...

Develop an assembly language program for the system and simulate it using MPLAB. From this produce a demo program (in Assembly language) that will run on the MatrixMultimedia Devel

8086 alp, to find the matrix addition

to find the matrix addition

Rep-string manipulation instruction-microprocessor, REP : Repeat Instructi...

REP : Repeat Instruction Prefix :- This instruction is utilized as a prefix to other instructions. The instruction in which the REP prefix is provided, is executed repetitively

Assigment help, assempbly language routine that takes an array named A cont...

assempbly language routine that takes an array named A containing n bytes of postive numebrs and fills two arranys, array B containing n words and array C containing n long words

Overview of intel pro-pentium, Overview of Intel Pro-Pentium : The 2 c...

Overview of Intel Pro-Pentium : The 2 chief players in the PC CPU market are Motorola and Intel.  Intel has enjoyed incredible success with its processors since the early 1980

More Sentence Sense, When Seen in the choir, Terry was the picture of an an...

When Seen in the choir, Terry was the picture of an angelic devil. I have to underline the predicate twice

The intel processors , The Intel Processors :         The Intel Co...

The Intel Processors :         The Intel Corporation is the biggest manufacturer  of microchips  in the world,  in addition  to being  the leading provider of chips for PCs. I

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

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