Summary − So this instruction MOV M, E requires
1-Byte, 2-Machine Cycles
(Opcode Fetch, Memory Read) and 7 T-States for execution as shown in the timing diagram.
How many machine cycles are required for the execution of MOV a B instruction?
Summary − So this instruction MOV M, E requires 1-Byte,
2-Machine Cycles
(Opcode Fetch, Memory Read) and 7 T-States for execution as shown in the timing diagram.
How many machine cycles are required?
Conditional Jump instruction normally requires
3 machine cycles
(10T), if the condition is true. 1st machine cycle is for opcode fetch another 2machine cycles are for memory read.
How many machine cycles are required for MOV r1 r2?
Summary − So this instruction MOV E, Hrequires 1-Byte,
1-Machine Cycles
(Opcode Fetch) and 4 T-States for execution as shown in the timing diagram.
How many machine cycle is executed?
The machine cycle includes
four
process cycle which is required for executing the machine instruction. The four process includes reading of instruction, interpretation of machine language, execution of code and storing the result.
How many machine cycles are required for MOV M A?
Summary − So this instruction MOV M, E requires 1-Byte,
2-Machine Cycles
(Opcode Fetch, Memory Read) and 7 T-States for execution as shown in the timing diagram.
Which instruction has maximum machine cycles?
The minimum number of machine cycles required is one and the maximum number of machine cycles is
four
to execute one instruction.
Which flag is affected by MOV instruction?
The
MOV instruction never affects the flags
. Whenever the destination operand equals Zero, the Zero flag is set. A flag is set when it equals 1. A flag is clear when it equals 0.
What does add R1 R2 R3 mean?
“ADD R1 R2 #3;” will move the value R2 + 3 into R1. SUB: This instruction subtracts 2 values and puts them into a register. For eg. “SUB R1 R2 R3;” will move the value R2-R3 into R1.
What type of instruction is mov?
MOV instruction is
a copy instruction
. MOV copies the source operand to the destination operand without affecting the source.
How is machine cycle calculated?
So to calculate the machine cycle, we take 1/12 of the crystal frequency, then take the inverse of it results in time period. i.e
frequency = 1/time period
.
What are the 3 stages of the CPU cycle?
It is composed of three main stages:
the fetch stage, the decode stage, and the execute stage
.
What is the difference between machine cycle and instruction cycle?
A machine cycle is the step that gets performed when a processor is employed in a device and all the
instructions
are implemented. An instruction cycle is a process by which a computer takes an instruction from a program and executes it from memory.
How does MOV instruction work?
The mov instruction
copies the data item referred to by its second operand
(i.e. register contents, memory contents, or a constant value) into the location referred to by its first operand (i.e. a register or memory). While register-to-register moves are possible, direct memory-to-memory moves are not.
What is MOV B M?
In 8085 Instruction set, MOV is a mnemonic, which stands for
“MOVe”
. In this instruction 8-bit data value in register r2 will be moved to the 8-bit register r1. … It is a 1-Byte instruction.
What is the action of MOV B A in microprocessor?
In 8085 Instruction set, MOV is a
mnemonic
, which stands for “MOVe”. In this instruction 8-bit data value in register r2 will be moved to the 8-bit register r1.
