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This is problem: 1 . Counting Occurrences in ARM Assembly Objective: o Write an ARM assembly program to count the occurrences of bytes from data
This is problem:
Counting Occurrences in ARM Assembly
Objective:
o Write an ARM assembly program to count the occurrences of bytes from data within data
o Utilize the provided base addresses for datax X and datax X
Requirements:
Data Initialization:
o data
o data
o Declare two arrays, data and data with the provided values.
o Use the base addresses x for data and x for data
Counting Occurrences:
o Use the base addresses of data and data to store the data.
o Count the occurrences of each byte from data within data totally.
o Store the total number of occurrences in X register.
Comments and Documentation:
o Provide clear comments and documentation explaining each section of your code.
o Include information about the data structure and any design decisions.
This is solution:
Initialize data values
MOVZ Xx LSL In X make the array's main address
MOVZ Xx LSL In X make the array's main address
MOVZ X # Set the counter in X
MOVZ X # In X set the loop counter for the outer loop
MOVZ X # In X set the loop counter for the outer loop
Load data into registers
MOVZ Xx Load data to X
MOVZ Xx Load data to X
STURH XX At the address in X store X
STURH XX # At the address in X store X
Enter more data into the registers.
MOVZ Xx Load data to X
MOVZ Xx Load data to X
MOVZ Xx Load data to X
MOVZ Xx Load data to X
MOVZ Xx Load data to X
STURH XX At the address in X store X
STURH XX # At the address in X store X
STURH XX # At the address in X store X
STURH XX # At the address in X store X
STURH XX # At the address in X store X
Comparing the arrays' components using an outer loop
LOOP: LDURB XXPut a byte into X from the location in X
ADDI X X # Increase Xs address
Inner loop to compare elements of the arrays
LOOP: LDURB XXPut a byte into X from the location in X
ADDI X X # Increase Xs address
SUB X X X Keep the value in X after subtracting X from X
CBNZ X NotInc If the outcome is not zero, do not increase X
ADDI X X # Increase the X counter
NotInc:
SUBI X X # Reduce the X inner loop counter.
CBNZ X LOOP Repeat the loop if the inner loop counter is not zero
Reset variables for the next iteration of the outer loop
MOVZ Xx LSL Reset the second array in X base address
MOVZ X # In X reset the inner loop counter
SUBI X X # Reduce the X outer loop counter
CBNZ X LOOP Repeat the loop if the outer loop counter is not zero
Now, solve this problem for this given datas:
o data
o data
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