Dear Teerath,

There are 80 Instruction set for An Intel 8085AH processor.

For more détails please see links and attached files :

-Instruction set of Intel 8085 Microprocessor - DAE Notes

www.daenotes.com › Electronics › Digital Electronics

-Microprocessor (8085) Lab Manual

https://books.google.dz/books?isbn=8170089417

-8085 MICROPROCESSOR: PROGRAMMING AND INTERFACING

https://books.google.dz/books?isbn=8120327853

-The 8085 Microprocessor: Architecture, Programming and Interfacing

https://books.google.dz/books?isbn=8177584553

 Ages !!!!!!!!!!!!!!!! Teerath ...

Areas: are same Data movement (memory management) , Arithmetic and Logical Instructions , Conditional , Interrupts and housekeeping  ...

Back then there was no floating point so all of them were for unsigned characters

Dear Teerath,

Mohamed-Mourad Lafifi sir has provided valuable information and nice resources towards your query. Though the answer is sufficient for your question I would like add few points.

If by areas of instructions you are meaning the type of commands/instructions then the may be classified in different ways like:

• data transfer instructions
• arithmetic instructions
• branching instructions
• logical instructions
• control instructions

Please follow two attached pdf files for a detail. I will be glad if the information is helpful for you Teerath.

My best wishes for you dear.

With love,

Bhaskar

Dear Teerath,

The 8085 microprocessor (IS)  has 74 (IS) with 246 patterns of different bit. It can be classified into five categories of operation as follows;

1. Data transfer operations 2. Arithmetic operations 3.  Logic operations 4. Branching operations 5. Machine-control operations.

Look forward for additional  response.

Regards,

Ajao

Mr. Bhaskar had given most logical answer for your query. There are some instructions which are not disclosed by Intel such as double substraction, relative branch instruction etc. You may a book by kenith short on microprocessor . you will get interesting additional instructions. Hope your quary is answered.

Sunil kore

Walchand college of Engg. Sangli Maharashtra

This is the beauty of research gate!

Thanks Sunil sir for the valuable info towards updating  the knowledge bank on 8085.

The info is very interesting and really awesome. I surely will give it a try.

Could you please provide the book name sir?

Regards,

Bhaskar

Microprocessor - kenith short. If I get exact name I will update you.

Thank you sir.

Thankyou Bhaskar