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For our purposes, the CPL bit is set and so we will use SPH/SP for direct addressing. SP is initialized for you in the core file and should not need to be modified. SP-referenced direct addressing is used by the psh and pop instructions for stack manipulation, as well as by all subroutine calls and returns, which save program addresses on the stack.

Examples:

; Assuming SPH = 0, SP = FF00h, MOV *SP(5) , T2 ; T2 = value at location 00FF05h ; Assuming DPH = 3, DP = 0 MOV @0005h, T2 ; T2 = value at location 030005h ADD *SP(6), AC0 ; AC0 = AC0 + (contents of memory location SPH:SP+6)

Absolute addressing: *abs16(#k16), *(#k23)

This seems to be TI's term for all the forms of direct addressing which it does not call direct addressing! There are three types of adsolute addressing : k16, k23, and I/O. We will only be using the first two. It isrepresented in assembly-instruction syntax-definitions using one of the above abbreviations ( *(lk) addressing is available when the syntax definition says Smem or Lmem ).

K16

k16 absolute addressing uses the operand *abs16(#k16) along with the 7-bit DPH to form a 23-bit address.

Example:

; Assuming DPH = 3 MOV *abs16(#2002h), T2 ; T2 = value at address 032002h

K23

k23 absolute addressing uses the operand *(#k23) as a 23-bit address.

Example:

MOV *(#032002h), T2 ; T2 = value at location 032002h MOV AR1, *(#hold) ; sets (storage location at hold) = AR1

Indirect addressing: smem, lmem, xmem, ymem, cmem

Indirect addressing on the TMS320C55x uses the auxiliary registers AR0 through AR7 and the CDP . They can be used in place of Smem/Lmem or Xmem/Ymem .

Ar indirect: smem/lmem

In Smem/Lmem indirect addressing, only one indirect address is used int he instruction and a number of variations is possible (see the table on page 6-39 of the CPU Reference guide). An asterisk is always used, which usually signifies indirect addressing. Any of the registers AR0 - AR7 may be used, with optional modifications: automatic post-decrement by one, pre- and post-increment by one, post-increment and post-decrement by n ( n being stored in T0, T1, or AR0), and more, including many options for circular addressing (which automatically implements circular buffers) and bit-revered addressing (which is useful for FFTs).

Dual ar indirect: xmem/ymem

Xmem/Ymem indirect addressing is generally used in instructions that need two different indirect addresses,although there are a few instances where an Xmem by itself is specified in order to save bits in the opcode for other options. In Xmem/Ymem indirect addressing, fewer bits are used to encode the option modifiers in the opcode; hence,fewer options are available: post-increment by one, post-decrement by one, and post-increment by AR0 , T0 , or T1 with circular addressing.

ADD Xmem, Ymem, ACx ADD *AR1+, *AR2+, AC0 ; Add values stored in memory locations referenced by ; AR1 and AR2 and store result in AC0. ; Incremement AR1 and AR2 by 1 with or without circular ; addressing depending on circular addressing bit ; for the respective auxiliary registers

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Digital signal processing laboratory (ece 420 55x). OpenStax CNX. Jan 18, 2010 Download for free at http://cnx.org/content/col10397/1.10
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