Question

Program 1-100 integer accumulation using RISC-V assembly.

Note: RARS only simulates 320-bit instructions of RISC-V, so make sure you use the instruction that operate work-size data type (mostly with `w` as the last character of the instruction mnemonic)

Answer 1

Greetings!!

Code:

#DATA SEGMENT

.data

sum: .ascii "Sum of numbers from 1-100: "

#CODE SEGMENT

.text

#MAIN STARTS HERE

main:

li t0,1               #load first number

li t1,0               #load 0 to hold sum

li t2,101           #load the upper limit

#PROCESSING..

loop:

beq t0,t2,done #check whether the number is equal to 101

add t1,t1,t0      #else sum it up in t1

addi t0,t0,1      #increment the number

j loop               #repeat

done:

#DISPLAY MESSAGE

la a0,sum        #load address of message

li a7,4              #parameter

ecall                #display

#DISPLAY SUM

add a0,zero,t1 #load sum to a0 for display

li a7,1              #parameter

ecall                #display

#TERMINATION

li a7,10                        #parameter

ecall                #terminate

Output screenshot:

Hope this helps