[SOLVED] Regarding: Working of DB directive in 8051 microcontroller

[snel]

Hi all,

To introduce myself: I am just a fresher in the field of electronics with computer background


Presently I am studying about 8051 series from Mazidi.

But i am stuck at the concept of DB directive.
Below is the example snippet from the book at which i am stuck

<<
Count EQU 30
... ...
MOV R4,#COUNT ;R4=1EH
MOV DPTR,#MYDATA ;DPTR=200H

ORG 200H
MYDATA: DB “America”
>>


In the above code, the comment section shows the value. Like value of R4 would be 30 or 1E .
Similarly the value of DPTR would be 200


Now my problem is how could the value of DPTR be 200 when MYDATA points to "America" below ?

Since "America" signifies a value other than 200 in either HEX or any other conversion.

Would really appreciate if someone could let me know how come the value of DPTR comes out to 200.

 

[dilraj.n]

200H is the starting address of the string "America"

 

[snel]

200H is the starting address of the string "America"

Thanks Dilraj for the help.

Also since I am very new to this field of Electronics

So could you suggest me some book on electronics which could help me to gain some knowledge about "the concepts as to when and where to use various electronic components"
like (transistors, capacitor, variable/preset resistor, crystal etc)

 

[dilraj.n]

This link may help you
https://www.circuitstoday.com/4-great-books-to-study-basic-electronics

 

[snel]

Well thanks again...for the help

Let me purchase and read these books...to gain some more knowledge.