Write an arithmetic unit and related self testing in MIPS assembly as following.

Question

Write an arithmetic unit and related self testing in MIPS assembly as following. Put all the source codes in a directory and compress them into a zip file and upload. Grader should be able to download your zip file, unzip it and directly load it into MARS for final machine code generation and run - without any error.

1. The over all program should ask user for two integer numbers (a, b) and target arithmetic operation (+,-,*./) and will print the result of the operation with a comment if the result produced is correct or not.

2. Write add_normal, sub_normal, mul_normal and div_normal procedures which all takes $a0 and $a1 as two argument integers and returns the operation results in $v0 (and in $v1 for Hi result in mul or div). All these *_normal uses only native arithmetic operation of MIPS.

3. Write add_logic, sub_logic, mul_logic and div_logic procedures which all takes $a0 and $a1 and two argument integer and returns the operation results in $v0 (and in $v1 for Hi result in mul or div). All these *_logic uses only native logic operation of MIPS. They implement arithmetic operation using logic algorithm taught in CS47.

4. Write two procedure au_normal and au_logic which takes two integers and one operation code for +,-,* and / in $a0, $a1 and $a2. These two procedure returns results in $v0 and $v1 ($v1 contains the Hi value of the result from * or /). The main program (Label must be 'main') calls au_logic to determine the result and print the result as it gets back from the au_logic. This au_logic uses all the *_logic procedures implemented in #3. The main program also calls au_normal procedure to determine golden result and compare it with the result obtained from au_logic to determine pass or fail. It prints the result pass / fail. This au_normal uses all the *_normal procedure implemented in #2.

Explanation / Answer

Hi,

Below are your programs:

Program 1:

Answer:

.data

string0: .asciiz "nWelcome to calculator program!!!!"
string1: .asciiz "nn Enter first value a: "
string2: .asciiz " Enter (+, -, /, *): "
string3: .asciiz "n Enter second value b: "
string4: .asciiz "n Invalid Operator! Try again. "
string5: .asciiz "n Answer is: "
string6: .asciiz "nn Another Calculation? y, n: "
string7: .asciiz "nn Invalid input! Please enter y or n."
string8: .asciiz "nn Calculator is Terminated."

.text
.globl main

main:
addi $v0, $0, 4

la $a0, string0 //Loads and Prints the hellp message

syscall #printing str0

calculator:

addi $v0, $0, 4

la $a0, string1 //Prompts user to key in his value for a:

syscall #printing string1

addi $v0, $0, 6

syscall
mov.s $f1, $f0   #reading and storing first value

addi $v0, $0, 4

la $a0, string2

syscall #printing string2

addi $v0, $0, 12

syscall #Now reading operator

add $a1, $v0, $0   #storing the operator

addi $v0, $0, 4

la $a0, string3
syscall #printing string3

addi $v0, $0, 6

syscall
mov.s $f2, $f0   #reading and storing second value

addi $9, $0, 0x2b
beq $a1, $9, addIt   #checking if +

addi $9, $0, 0x2d
beq $a1, $9, subIt   #checking if –

addi $9, $0, 0x2a
beq $a1, $9, mulIt   #checking if *

addi $9, $0, 0x2f
beq $a1, $9, divIt   #checking if /

addi $v0, $0, 4

la $a0, string4

syscall #printing string4 if invalid operator is chosen.
j calc

addIt:
add.s $f12, $f1, $f2   #adding values
j printAnswer

subIt:
sub.s $f12, $f1, $f2   #subtracting values
j printAnswer

mulIt:
mul.s $f12, $f1, $f2   #multiplying values
j printAnswer

divIt:
div.s $f12, $f1, $f2   #dividing values
j printAnswer

printAnswer:
addi $v0, $0, 4

la $a0, string5

syscall #printing string5

li $v0, 2
syscall #Now printing the answer
//Checking to see if user wants to perform another calculation
j anotherCalc

anotherCalc:
addi $v0, $0, 4

la $a0, string6

syscall #printing string6

addi $v0, $0, 12

syscall #reading command

add $a1, $v0, $0   #storing command

addi $9, $0, 0x79
beq $a1, $9, calc   #checking if y

addi $9, $0, 0x6e
beq $a1, $9, exitApp   #checking if n

addi $v0, $0, 4

la $a0, string7

syscall #printing string7
j anotherCalc

exitApp:
addi $v0, $0, 4

la $a0, string8

syscall #printing string8
jr $31 # Exit main subroutine.

Program 2:

Answer:

.data

string0: .asciiz "nWelcome to calculator program!!!!"
string1: .asciiz "nn Enter first value a: "
string2: .asciiz " Enter (+, -, /, *): "
string3: .asciiz "n Enter second value b: "
string4: .asciiz "n Invalid Operator! Try again. "
string5: .asciiz "n Answer is: "
string6: .asciiz "nn Another Calculation? y, n: "
string7: .asciiz "nn Invalid input! Please enter y or n."
string8: .asciiz "nn Calculator is Terminated."

.text
.globl main

main:
addi $v0, $0, 4

la $a0, string0 //Loads and Prints the hellp message

syscall #printing str0

calculator:

addi $v0, $0, 4

la $a0, string1 //Prompts user to key in his value for a:

syscall #printing string1

addi $v0, $0, 6

syscall
mov.s $f1, $f0   #reading and storing first value

addi $v0, $0, 4

la $a0, string2

syscall #printing string2

addi $v0, $0, 12

syscall #Now reading operator

add $a1, $v0, $0   #storing the operator

addi $v0, $0, 4

la $a0, string3
syscall #printing string3

addi $v0, $0, 6

syscall
mov.s $f2, $f0   #reading and storing second value

addi $9, $0, 0x2b
beq $a1, $9, addIt   #checking if +

addi $9, $0, 0x2d
beq $a1, $9, subIt   #checking if –

addi $9, $0, 0x2a
beq $a1, $9, mulIt   #checking if *

addi $9, $0, 0x2f
beq $a1, $9, divIt   #checking if /

addi $v0, $0, 4

la $a0, string4

syscall #printing string4 if invalid operator is chosen.
j calc

addIt:
add.s $f12, $f1, $f2   #adding values
j printAnswer

subIt:
sub.s $f12, $f1, $f2   #subtracting values
j printAnswer

mulIt:
mul.s $f12, $f1, $f2   #multiplying values
j printAnswer

divIt:
div.s $f12, $f1, $f2   #dividing values
j printAnswer

printAnswer:
addi $v0, $0, 4

la $a0, string5

syscall #printing string5

li $v0, 2
syscall #Now printing the answer
//Checking to see if user wants to perform another calculation
j anotherCalc

anotherCalc:
addi $v0, $0, 4

la $a0, string6

syscall #printing string6

addi $v0, $0, 12

syscall #reading command

add $a1, $v0, $0   #storing command

addi $9, $0, 0x79
beq $a1, $9, calc   #checking if y

addi $9, $0, 0x6e
beq $a1, $9, exitApp   #checking if n

addi $v0, $0, 4

la $a0, string7

syscall #printing string7
j anotherCalc

exitApp:
addi $v0, $0, 4

la $a0, string8

syscall #printing string8
jr $31 # Exit main subroutine.

2.
.text
main: #assume value a is already in $t0, b in $t1
add $a0, $0, $t0 #Same as move function
add $a1, $0, $t1
//Similar to c line
int main () {
int x;
x = add_normal (a,b);
x = sub_normal (a,b);
x = mul_normal (a,b);
x = div_normal (a,b);

}
jal add_normal #Call addition Procedure
sub $a0, $0, $t0 #Same as move function
sub $a1, $0, $t1
jal sub_normal #Call substraction procedure
mul $a0, $0, $t0 #Same as move function
mul $a1, $0, $t1

jal mul_normal #Call Multiply procedure
div $a0, $0, $t0 #Same as move function
div $a1, $0, $t1
jal div_normal #Call Division procedure
add $t3, $0, $v0 #Move the return value into any temp register
syscall
add_normal:
addi $sp, $sp, -4 #Adjusting Stack Pointer
sw $t0, 0($sp) #Restore Previous Value
add $t0, $a0, $a1 #Procedure Body
add $v0, $0, $t0 #Results
lw $t0, 0($sp) #Load previous value
addi $sp, $sp, 4 #Moving Stack Pointer
jr $ra #return (Copy $ra to PC)

sub_normal:
subi $sp, $sp, -4 #Adjusting Stack Pointer
sw $t0, 0($sp) #Restore Previous Value
sub $t0, $a0, $a1 #Procedure Body
sub $v0, $0, $t0 #Results
lw $t0, 0($sp) #Load previous value
subi $sp, $sp, 4 #Moving Stack Pointer
jr $ra #return (Copy $ra to PC)

mul_normal:
muli $sp, $sp, -4 #Adjustin Stack Pointer
sw $t0, 0($sp) #Restore Previous Value
mul $t0, $a0, $a1 #Procedure Body
mul $v0, $0, $t0 #Results
lw $t0, 0($sp) #Load previous value
muli $sp, $sp, 4 #Moving Stack Pointer
jr $ra #return (Copy $ra to PC)

div_normal:
divi $sp, $sp, -4 #Adjustin Stack Pointer
sw $t0, 0($sp) #Restore Previous Value
div $t0, $a0, $a1 #Procedure Body
div $v0, $0, $t0 #Results
lw $t0, 0($sp) #Load previous value
divi $sp, $sp, 4 #Moving Stack Pointer
jr $ra #return (Copy $ra to PC)

Program 3:

Not sure what is taught in your class using logic algorithm taught in CS47.

Program 4:

Not sure what is taught in your class using logic algorithm taught in CS47.

Hope that helps...HAPPY ANSWERING!!!!!!!!

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.