About microprocessor 8085..!!

[koolguy]

Hi, i want to know why while programming uP 8085, we start memory location with 2000h??
& why LXIH is used to save in HL pair, why not in other pair like BC??

 

[blueroomelectronics]

What makes you think that? Is that what it said in the datasheet?
https://www.electro-tech-online.com/custompdfs/2011/02/ch3.pdf

Why are they teaching you on such an ancient relic?

 

[koolguy]

What makes you think that? Is that what it said in the datasheet?
https://www.electro-tech-online.com/custompdfs/2011/02/ch3-1.pdf

Why are they teaching you on such an ancient relic?

for basics.

i am not understanding why memory location starts from 2000H??

 

[blueroomelectronics]

Who said it did?

 

[koolguy]

Who said it did?

i think.....

 

[blueroomelectronics]

i think.....

Therefore I am.

 

[kamdy]

The starting address of programming of 8085 microprocessor kit depends on the design of the address decoder used in the kit. The address decoder of the kit you are using points to 2000H which is the starting address of the RAM of the kit

 

[blueroomelectronics]

Didn't see any mention of a kit.

 

[kamdy]

Didn't see any mention of a kit.

Yes you are right but from the post he is talking about a uP system or kit. As you know 8085 is an old microprocessor and has no internal memory.

 

[blueroomelectronics]

Yes but the true reset vector is 0x0000. How was I supposed to know the OP was talking about some kit?

 

[koolguy]

Yaaa.., I am talking about 8085 training kit.

 

[blueroomelectronics]

Yaaa.., I am talking about 8085 training kit.

Next time say so.