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

The 486, The 486 Introduced in the year 1989 the 80486 did not feature ...

The 486 Introduced in the year 1989 the 80486 did not feature any radically new processor technology. Instead, it joints a 386 processor, a cache memory controller and a math c

Efficient assembly language program, (1) Write a program that will: (a) dis...

(1) Write a program that will: (a) display "Enter Your Name:" (b) convert the entered name to Capital letters (if small), If any other character is entered, the program wil

A/D conversions, A/D conversion: Basic tasks: (a) Write a program that wil...

A/D conversion: Basic tasks: (a) Write a program that will read and display the analog voltage on pin PE7 approximately once every second. (b) Write a program that will read and d

Interrupt system based on 8259 a-microprocessor, Interrupt System Based on ...

Interrupt System Based on Single 8259 A The 8259A is contained in a 28-pin dual-in-line package that need only a + 5-V supply voltage.  Its organization is shown in given figur

Computes the integral square root - assembly program, Computes the integral...

Computes the integral square root: Problem: Square Root:   For this problem you will write a short assembly program that computes the integral square root of an input numb

C#, * * * * **** ...

* * * * **** * * * * * How can i print this help me pls

Any project ideas plz, can any one help me in my project by using assembly ...

can any one help me in my project by using assembly language

Generating random number using 8086, I need to generate a random number bby...

I need to generate a random number bby using 8086 assembly language

Eax and ax register, MyLocation SDWORD 14 TheTest        SDWORD 8     mov ...

MyLocation SDWORD 14 TheTest        SDWORD 8     mov    eax,MyLocation     mov    ebx,TheTest     neg     eax,ebx     sub     eax,ebx Show exactly what lives in eax after executi

Timing diagram of minimum mode, give the explaination of timing diagram min...

give the explaination of timing diagram minimum mode memory write cycle

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