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Design Engineer - STA, SD, Power, PDN at Dew Software

Hello Dear Readers,   Currently at Dew Software Bangalore vacancy for Design Engineer - STA, SD, Power, PDN role. Dew Software, a leading player in the Digital Transformation space, is seeking a skilled Design Engineer specializing in STA (Static Timing Analysis), SD (Signal Integrity), Power, and PDN (Power Delivery Network) to join our team. Working with Fortune 500 companies to support their digital innovation and transformation strategies, the Design Engineer will be responsible for ensuring the integrity and efficiency of digital designs through comprehensive analysis and optimization. Dew Software is dedicated to delivering exceptional outcomes with cutting-edge technologies, and this is an excellent opportunity to contribute to the growth and success of our clients. Responsibilities: Perform STA (Static Timing Analysis) to ensure design meets timing requirements Conduct signal integrity analysis to optimize signal integrity and minimize signal integrity issues Provide power anal
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ARM Assembly Language Practice Question And Answer Part-2

  Hello Dear Readers, 

Today in this post I will provide some basics to advanced ARM's assembly language practice QA part-2, I have used the Keil tool for code writing.

Q-1). Write an assembly language program for storing the sum of first ‘n=6’ terms of the series 1,4,9,16,25…..

Code:

; program for the addition of the n=6 series 

area sum_series, code,readonly 

entry 

mov r2,#0 

mov r0,#6

loop 

  muls r1,r0,r0 ; multiply square number 

  add r2,r2,r1 ; whole sum is stored on register "r2" 

subs r0,r0,#1 

bne loop 

end 

Output:


Q-2). Write an assembly language program to find the maximum of 3 numbers and store it at location 0x5000.

Code:

; program to find maximum number of 3 and store in memory 

area max, code, readonly 

entry 

ldr r0,=data 

ldr r3,=0x5000 

ldr r4,=0x03 ;create a loop of 3 

ldr r1,[r0, #4] 

sub r4,r4,#1 

again 

 ldr r2,[r0] 

 cmp r1,r2 

 bcs loop ; jump on set carry 

 mov r1,r2 

loop 

 add r0,r0,#4 

 sub r4,r4,#1 

 bne again 

str r1,[r3] 

stop b stop 

data dcd 0x07,0x08,0x09 

end 

Output:


Q-3). Write an assembly language program for counting the total occurrences of a given ‘n=3’-bit pattern '110' in a 32-bit value.

Code:

; program to count occurance of the sequences in the given 32 bit value 

area count, code, readonly 

entry 

ldr r0, =data 

mov r3, #0 ; value of the occurance stored 

mov r4, #32 ;defined for one bit calculation 

mov r5, #6 

ldr r1, [r0] 

next 

 mov r1, r1, ror #1 

 mov r2, r1 

 ands r6, r2, r5 ; anding operation for identify sequences 

 subs r6, r6, r5 

 beq again 

 subs r4, r4, #0x1 

 bne next 

 b stop 

again 

 add r3, r3, #0x1 

 subs r4, r4, #0x1 

 bne next 

stop b stop 

data dcd 0x98654353 

end

Output:

Q-4). Write an assembly language program to count the total factors of a number.

Code:

; program to find totals number of factors 

area factor, code, readonly 

entry 

ldr r0,=data 

ldr r1,[r0] ; take example of 4 so number of factor is 3(i.e 1,2,4) 

mov r4,r1 

mov r2,#1 ; initial value for division 

mov r3,#0

next 

 cmp r4,r2 

 bcs loop1 

stop b stop 

loop 

 add r3,r3,#1 

again 

  add r2,r2,#1 

 mov r1,r4 

  b next 

loop1 

subtract 

  SUBS r1,r1,r2 

  beq loop 

  bhi subtract 

 b again 

data dcd 0x04 

end

Output:


Q-5). Write an assembly language program to find maximum and minimum values in an array.

Code:

; program to find maximum and minimum value from an array 

area max_min, code, readonly 

entry 

ldr r0,=data 

ldr r1,=0x05 

ldr r3,[r0] ; maximum value stored on r3 register 

ldr r4,[r0] ; minimum value stored on r4 register next 

 ldr r2,[r0] ; it is reference register 

 cmp r3,r2 

 bcs loop 

 mov r3,r2 

loop 

 cmp r4,r2 

 bls again 

 mov r4,r2 

again
  add r0,r0,#4 

  subs r1,r1,#1 

  bne next 

stop b stop 

data dcd 0x03,0x04,0x5,0x7,0x9 

end

Output:


Q-6). Write an assembly language program to find the average of first ‘n’ natural numbers.

Code:

; program for calculating average of 'N' natural numbers 

area avg,code,readonly 

entry 

ldr r0,=7 

mov r2,r0 

next 

 add r1,r1,r0 ; addition of all the numbers 7+6+5..... 

 subs r0,r0,#1 

 bne next ; repeat untill addition comes to 0 from the given value 

again 

 sub r1,r1,r2 ; For repeated subtraction 

 add r3,#1 ; r1 is stored remainder 

 cmp r1,r2 ; value in r3 is quotient 

 bge again 

end 

Output:


ARM Assembly Language Practice Question And Answer Part-1



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Comments

  1. Anonymous30 January 2022 at 10:46

    Wow bro I can't have words for you. Please keep it up to advanced algorithms.

    ReplyDelete

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