Inherent addressing, Computer Engineering

Assignment Help:

Inherent addressing

  Here the address is already built in to the instruction i.e. inherent to the code
 
  ABA  ; Add A to B and store the answer in A 

Simple programs using the 68HC11 language

  This section of functions include instructions such as ALU functions, simple movement and logically operations .Let us consider the addition of two 8 bit numbers

Program One: Data is immediate
 
  LDAA #$fe  ; Load hex fe into accumulator A
  ADDA #$1  ; Add 1 hex to A i.e total = ff hex
 
Program two:  Direct addressing and extended addressing

  Assume the data is stored at the following Ram address

Address Data
501    fe     Number One
502    01    Number Two
503            Result
 
LDAA $501  ;Load fe from address 501 into A
ADDA $502  ;Add 01 from address 502 into A
STAA $503  ;Store the answer ff at address 503
 
Program three: Index addressing

  Assume the data is stored at the following Ram address

Address Data
500     fe    Number One
501    01    Number Two
502             Result
  
LDX #$500    ;Load IX with 500 base address
LDAA  $0,X    ;Load data from 500 + 0 into A i.e fe
ADDA  $1,X    ;Add data from 500+1  to A i.e ff
STAA  $2,X    ;Store A at address 500+2


Related Discussions:- Inherent addressing

Explain the disadvantages off-the-shelf, Explain the disadvantages Off-the...

Explain the disadvantages Off-the-shelf -  can be over-complex since it tries to cover as many characteristics as possible (for example most users of Word only utilise about

Single program multiple data, SPMD is actually a "high level" programming m...

SPMD is actually a "high level" programming model that can be built upon any combination of the previously mentioned parallel programming models. A single program is executed by al

Recombination and mutation, Recombination and Mutation: In such a scen...

Recombination and Mutation: In such a scenario the point of GAs is to generate population after population of individuals that represent possible solutions to the problem at h

Environment of the packet flow, Q. Environment of the Packet Flow? Prot...

Q. Environment of the Packet Flow? Protocol stack used on Internet is referred to as TCP/IP protocol stack. If we were to follow the path that message "Hello computer 5.6.7.8!"

Application layer in tcp/ip model corresponds to for what, Application laye...

Application layer (layer 4) in TCP/IP model corresponds to? In OSI model, application layer (layer 4) in TCP/IP model corresponds to layer 6 and layer 7.

What is a table attribute, What is a Table attribute? The table's attr...

What is a Table attribute? The table's attributes verifies who is responsible for maintaining a table and which types of access are permitted for the table.  The most signific

Associativity of connectives - artificial intelligence, Associativity of Co...

Associativity of Connectives: In order to tell us brackets are useful when to perform calculations in arithmetic and when to evaluate the truth of sentences in logic. Imagine w

increase the number of rows or columns in a worksheet, How can I increase ...

How can I increase the number of rows or columns in a worksheet? Ans) In Excel, each workbook has 255 columns and 65,526 rows. These values are fixed and cannot be changed. If

Defined for a push button fields in the screen attributes, What is to be de...

What is to be defined for a push button fields in the screen attributes? A function code has to be described in the screen attributes for the push buttons in a screen.

Affective functioning - integrated test result, Mr. X's MMPI suggests that ...

Mr. X's MMPI suggests that he either suppresses anger and hostility or has a naturally low level of anger and hostility (O-H=58, ANG=36, TPA=41, AGGR=36). His responses on the PAS

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