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Intel 8085
Introduced by Intel in 1977, the Intel 8085 is an 8-bit microprocessor that is binary-compatible with Intel 8080. It only requires a +5-volt power supply and has been used as a microcontroller.
1,493 Questions
I believe it is the Load A instruction- Load the A register. The operand would contain the value to load into the register, or if indirect, it would point to the address where the value is contained. indirect addressing can be relative or absolute.
Which pin of 8086 is not compatible with 8085 for memory interfacing?
Pin 28 on the 8086/8088 is M/IO-, in minimum mode. The equivalent pin on the 8085 is IO/M-, and has opposite polarity.
How many 8 bit register in 8085?
There are seven 8 bit registers in the 8085. A, B, C, D, E, H, and L
What is the Difference between overflow and carry binary addition?
You have an adder circuit that can hold a maximum value of 100. With the carry it can hold values up to 199, the carry distinguishes between 31 and 131. But if the sum is greater than 199, you have overflow, because the circuit has no way of telling you what the actual value is.
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you have an overflow when the size of the result doesn't fit to the capacity of the memory sign of the result is different from what is expected (for example, getting a negative result when adding 2 positive numbers) The carry out occur when the size of the result doesn't fit to the capacity of the memory, yet its sign is correct.
1 - 8 - 4 - 3 - 6 - 5 - 7 - 2
The distributor rotor turns CLOCKWISE
The marked # 1 position on the distributor cap faces to the FRONT
The engine cylinder / spark plug locations are numbered :
firewall
8 - 7
6 - 5
4 - 3
2 - 1
front
Why 8085 is called parallel device?
The data bus of 8085 is 8 bit and so it will read or write 8 bits simultaneously.So it is Parallel Devise
Difference between LDA and STA instruction in 8085?
In the 8085, the LDA instruction loads the accumulator from memory, while the STA instruction stores the accumulator to memory. LDA is a read, while STA is a write. LDA is opcode 3AH, while STA is opcode 32H.
Stack can be described as a pointer Explain?
Stack is also dynamic memory, without the hassle. Dynamic memory uses pointers to check its value, free the memory, etc.
How can I register a question?
Registering for a question depends on the platform in which the question is addressed. You might be required to pay registration fees before you register for certain questions.
What is the difference between directives and instructions?
Directives are a signal to the pre-preprocessor that the following code must be modified prior to compilation. For instance, the #include directive tells the pre-processor that the specified file's contents must be pre-processed and then inserted at that point in the current file. The file itself should include compiler directives to prevent the file being included more than once (inclusion guards). Any line that has a leading pound symbol (#) in the first column can be considered a directive, but "using namespace..." is also a directive.
"Instructions" is an ambiguous term that we do not use in C++. Used literally, it could mean inline assembly instructions but some people might use the term to mean any C++ command. The correct terms for these are keywords and reserved words.
There are many things that could cause 'The instructionÕ. This will vary from one scenario to another. In most machines and consoles, this is a bug-related problem which can be fixed by debugging.
What is the difference between instruction registers and instruction pointer?
instruction register is used to store the next instruction to be executed.
instruction pointer is used to store the address of the next instruction to be executed.
The microprocessor used in the first home computer was the 8080. It could handle 8 bits at a time.
Is fetch decode execute cycle is used in coding?
No. Fetch-decode-execute is a machine state time paradigm, not a philosophy used in coding.
Write a 8085 microprocessor program to check whether a give number is even or odd?
Lxi h, 2000h
mov a,m
mov b,a
inx h
mov a,m
add b
sta 2002h
hlt
What is the purpose of the DCR instruction in 8085?
the contents of the designated register is decremented by 1,and result is placed in the same location.
