2. (7 points) The following program tries to copy words from the address in register $4 to the address in register $5, counting the number of words copied in register $2. The program stops copying when it finds a word equal to 0. You do not have to preserve the contents of registers $3, $4, and $5. This terminating word should be copied but not counted. Loop: lw $3,0($4) # Read next word from source addi SW $2,$2,1 # Increment count of words copied $3,0($5) # Write to destination addi $4,$4,1 addi $5,$5,1 # Advance pointer to next source # Advance pointer to next destination #goto Loop if word copied = zero bne $3,$0, Loop There multiple bugs in this MIPS program. Fix them and turn in a bug-free version of this program.
2. (7 points) The following program tries to copy words from the address in register $4 to the address in register $5, counting the number of words copied in register $2. The program stops copying when it finds a word equal to 0. You do not have to preserve the contents of registers $3, $4, and $5. This terminating word should be copied but not counted. Loop: lw $3,0($4) # Read next word from source addi SW $2,$2,1 # Increment count of words copied $3,0($5) # Write to destination addi $4,$4,1 addi $5,$5,1 # Advance pointer to next source # Advance pointer to next destination #goto Loop if word copied = zero bne $3,$0, Loop There multiple bugs in this MIPS program. Fix them and turn in a bug-free version of this program.
C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter3: Assignment, Formatting, And Interactive Input
Section3.4: Program Input Using Cin
Problem 9E
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Transcribed Image Text:2.
(7 points) The following program tries to copy words from the address in register
$4 to the address in register $5, counting the number of words copied in register
$2. The program stops copying when it finds a word equal to 0. You do not have to
preserve the contents of registers $3, $4, and $5. This terminating word should be
copied but not counted.
Loop:
lw $3,0($4) # Read next word from source
addi
SW
$2,$2,1 # Increment count of words copied
$3,0($5) # Write to destination
addi $4,$4,1
addi $5,$5,1
# Advance pointer to next source
# Advance pointer to next destination
#goto Loop if word copied = zero
bne $3,$0, Loop
There multiple bugs in this MIPS program. Fix them and turn in a bug-free version
of this program.
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