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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
Why stack data starts from one location less then stack pointer's register address?
Actually, stack data starts one location greater than the stack pointer. In the Intel design, the stack pointer always points to the next location to be used on a push, and pushes always decrement the pointer. It is more correct to say that the stack region to be used next is one location less than the stack pointer's register address.
Is there any possible justification for an instruction with two opcodes?
An instruction only has one opcode.
There may be two opcode bytes, or there may be different fields in the assembly code of the instruction, but the bit pattern of an instruction will always generate the same results.
There are some results that can be generated with two different opcodes. SUB A and XRA A, for instance, both clear the accumulator, but they are two different opcodes for two different instructions.
How do you register for cossy?
You visit an event and you find someone to give you one. you might have to pay . im a total noob so i really don't know but from what ive heard that's how.
How do you draw the timing diagram for instruction INX H?
INX H instruction requires 1 machine cycle having 6 T-states because 8-bit instruction operate on 16 bit data (HL) completed in 6 T-states.
How many clock cycle is needed to execute LDA?
It is a 3 byte instruction, with one byte for opcode and the other two for the 16bit address. It takes four machine cycles (one to fetch opcode, one to fetch lower order address, one to fetch higher order address and another one to fetch the data from the memory)... i.e. it takes 13 time states to perform the LDA instruction
Is microprocessors use in inverters?
Microprocessor is used where we require more m/m and data. microcontroller is best option for inverters,but in a case if we want to improve, or want to make it advance such as with some conditions then we use microprocessor
How does someone register for MyCoke?
If someone wants to register for the rewards that are offers by the MyCoke site then they just need to put in their email address and a password to open an account. They can then save the codes and use them to get rewards.
What is dma operation in 8085?
DMA->Direct Memory Access.
I/O device can access the memory without the help of CPU. So that there is faster access by the device. I/O device signals microprocessor by HOLD signal.
What is PMW in 8085 microprocessor?
I know of no PMW pin or PMW instruction in the 8085. Please restate the question.
If you are asking about PWM, or pulse width modulation, please note that that is not an 8085 specific thing. It would be a function of system design, and you could achieve PWM with programming, but the answer would depend on the particulars of that system design.
What is the significance of x1 and x2 clock signal input of 8085?
X1 and X2 are connect to a crystal.
Who were the last 6 presidents in order?
Jimmy Carter, Ronald Reagan, George H. Bush, Bill Clinton, George W. Bush and Barack Obama
What is the purpose of the out instruction in 8085 microprocessor?
The OUT instruction in the 8085 takes the contents of the accumulator and stores it at a designated location in IO space. The IO space is 256 bytes. Significant control lines are IO/M- being high, and WR- being low. The output device is expected to strobe the contents of the data bus on the rising edge of WR-. The address is strobed on the falling edge of ALE.
Why 8085 microprocesseor cannot have more than 256 instruction?
Intel designed the 8085 as a 8 bit computer, with the opcode byte as the first byte of the instruction. As such, there are only 256 possible values for the first opcode byte. (28 = 256) As implemented, Intel provided only 83 different instructions.
It is possible, however, in general, that secondary opcode space be usable, so the "8 bit" rule might not necessarily apply, but Intel chose to not implement any of them on the 8085, like they did on the 8086/8088.
In a microprocessor command ADD B means?
ADD B in a microprocessor means to add the contents of the accumulator to the B register and store the result in the accumulator. Flags are set according to the result - Z if zero, C if an unsigned carry occurred, AC if a BCD carry occurred, N if the result is signed negative, O if the parity is odd, OV if a signed overflow occurred. Note that not every microprocessor has every flag listed.
What is direct memory addressing?
Direct memory addressing is like a long carrott inside a dirty butt hole<---------Srew YOU douchbag!!.....can somebody answer that properly...thank you!
How many 30 bit SIMMS are required to populate a bank on a 486 system that has 32 bit data bus?
It depends on the bank size, and that depends on the motherboard design.
What is the function of ready pin of 8085 microprocessor?
The READY pin on the 8085 microprocessor is used to delay the completion of a bus transfer cycle. It is sampled by the 8085 at the falling edge of clock following ALE. If it is high, the cycle completes. If it is low, the cycle is extended by one clock, with all lines held steady - then it is sampled again at each of the next falling edges of clock until it is high.
The purpose of READY is to allow (usually) memory devices to operate at a slower speed than the 8085.
When you often interrupt a person who is speaking to you your likely to give the impression that?
More likely ,you are not interested in his/her gossips.
