.data # variable declarations follow this line
maze: .space 144 # 9x9 stored in a 16x9 buffer
robot_x: .word 0
robot_y: .word 0
robot_m_x: .word 0
robot_m_y: .word 0
robot_instructions: .space 244
MsgRS1: .asciiz "Robot is at a safe place"
MsgRS2: .asciiz "Robot falls into Chasm"
MsgRS3: .asciiz "Robot falls into the trap"
MsgRS4: .asciiz "Robot reaches Destination"
MsgRS5: .asciiz "Robot fails to reach Destination"
.text # CODE SECTION OF ASM FILE
#main:
li $v0,30 # Get time
syscall # CMD: Get Time
# $a0 = lower 32-bits, $a1=upper 32-bits
# Seed RNG (Random Number Generator)
move $a1,$a0 # get lower 32-bit time as seed
li $a0,0 # Rng#0
syscall # CMD: Seed the RNG
# Clear Maze Array
la $t0, maze # load address of maze
li $t3, 0
li $t1, 144
clr: # repeat if not finished yet.
la $t0, maze # base address
li $t3, 2 # maze[1][2] = 2;
sb $t3, 18($t0) # 1 x16 + 2
iSAFE: 1
iCHASM: 2
iTRAP: 3
iDESTINATION: 4
la $t0, maze # base address
li $t3, iSAFE # maze[1][1] = 1;
sb $t3, 0x12($t0) # 1 x 16 + 1
la $t0, maze # base address
li $t3, iCHASM # maze[1][2] = 2; #maze[2][4];
sb $t3, 0x12($t0) # 1 x 16 + 2
la $t0, maze # base address
li $t3, iTRAP # maze[2][3] = 3; # maze[3][4];
sb $t3, 0x12($t0) # 1 x 16 + 3
la $t0, maze # base address
li $t3, iDESTINATION # maze[3][2] = 4;
sb $t3, 0x12($t0) # 1 x 16 + 4
r = (rand() % 3) + 1; 1...4
// $a0 has your random number 1...4
If you subtract 1, then it will set your zero flag
a0 = a0 - 1
if (a0 is not zero)
addi $a0, $a0, -1 //
bnez Try2
# if (r == 1) then // move
robot_x = robot_m_x;
robot_y = robot_m_y + 1;
endif
jr nxt
Try2:
addi $a0, $a0, -1 //
# if (r == 2) // jump
robot_x = robot_m_x;
robot_y = robot_m_y + 2 ;
# endif
jr nxt
addi $a0, $a0, -1
# if (r == 3) // left
robot_x = robot_m_x - 1;
# endif
jr nxt
addi $a0, $a0, -1
# if (r == 4) // Right
robot_x = robot_m_x + 1;
#`endif
jr nxt
nxt:
# Get a Random #
li $a0, 0 # Rng#0
li $a1, 4 # rand() %4 {0...3}
li $v0, 41
syscall # Get RNG
# $a0 = {0...3}
addi $a0, $a0, 1 # $a0 = {1...4}
# Get a Random # li $a0, 0 # Rng#0 li $a1, 4 # rand() %4 {0...3} li $v0, 41 syscall # Get RNG # $a0 = {0...3} addi $a0, $a0, 1 # $a0 = {1...4}
sb $t3, 0($t0) # Set value from array
addi $t0, $t0, 1 # increment Maze address
addi $t1, $t1, -1 # decrement loop counter
bgtz $t1, clr # repeat if not finished yet.
la $a0, MsgRS1 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
# Get a Random #
li $a0, 0 # Rng#
li $a1, 4 # rand() %4 {0...3}
li $v0, 42
syscall # Get RNG
# $a0 = {0...3}
li $v0, 1 # specify Print Integer service
syscall # print number
la $a0, MsgRS2 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
la $a0, MsgRS3 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
la $a0, MsgRS4 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
la $a0, MsgRS5 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
li $v0,30 # Get time
syscall # CMD: Get Time
# $a0 = lower 32-bits, $a1=upper 32-bits
# Seed RNG (Random Number Generator)
move $a1,$a0 # get lower 32-bit time as seed
li $a0,0 # Rng#0
syscall # CMD: Seed the RNG
jr $ra # return
malugirl4 0 Junior Poster in Training
malugirl4 0 Junior Poster in Training
i just want to make sure its all in place right
wildgoose 420 Practically a Posting Shark
I've cleaned your code, but you need to finish cleaning it!
iSAFE = 1
iCHASM = 2
iTRAP = 3
iDESTINATION = 4
.data # variable declarations follow this line
maze: .space 144 # 9x9 stored in a 16x9 buffer
robot_x: .word 0
robot_y: .word 0
robot_m_x: .word 0
robot_m_y: .word 0
robot_instructions: .space 244
MsgRS1: .asciiz "Robot is at a safe place"
MsgRS2: .asciiz "Robot falls into Chasm"
MsgRS3: .asciiz "Robot falls into the trap"
MsgRS4: .asciiz "Robot reaches Destination"
MsgRS5: .asciiz "Robot fails to reach Destination"
.text # CODE SECTION OF ASM FILE
#main:
li $v0,30 # Get time
syscall # CMD: Get Time
# $a0 = lower 32-bits, $a1=upper 32-bits
# Seed RNG (Random Number Generator)
move $a1,$a0 # get lower 32-bit time as seed
li $a0,0 # Rng#0
syscall # CMD: Seed the RNG
# Clear Entire Maze Array
la $t0, maze # load address of maze
li $t3, 0
li $t1, 144
clr: # repeat if not finished yet.
la $t0, maze # base address
li $t3, 2 # maze[i] = 0
sb $t3, 0($t0)
add $t0, $t0, 1 # address++
add $t1, $t1, -1 # count--
bgtz $t1, clr
# Setup variables
la $t0, maze # base address
li $t3, iSAFE
sb $t3, 0x11($t0) # maze[1][1] = 1;
li $t3, iCHASM
sb $t3, 0x12($t0) # maze[1][2] = 2
sb $t3, 0x24($t0) # maze[2][4] = 2
li $t3, iTRAP
sb $t3, 0x23($t0) # maze[2][3]
sb $t3, 0x34($t0) # maze[3][4]
<---- Set the last one like I did in cleanup above
la $t0, maze # base address
li $t3, iDESTINATION # maze[3][2] = 4;
sb $t3, 0x12($t0) # 1 x 16 + 4
sb $t3, 0($t0) # Set value from array
addi $t0, $t0, 1 # increment Maze address
addi $t1, $t1, -1 # decrement loop counter
bgtz $t1, clr # repeat if not finished yet.
la $a0, MsgRS1 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
# Get a Random #
li $a0, 0 # Rng#
li $a1, 4 # rand() %4 {0...3}
li $v0, 42
syscall # Get RNG
# $a0 = {0...3}
add $a0, $a0, 1 # {1...4} malugirl4 0 Junior Poster in Training
Error in assembly line 1 position 7: iSAFE = 1
Invalid language element: =
Error in assembly line 2 position 8: iCHASM = 2
Invalid language element: =
Error in assembly line 3 position 7: iTRAP = 3
Invalid language element: =
Error in assembly line 4 position 14: iDESTINATION = 4
Invalid language element: =
Error in assembly line 68 position 1: <---- Set the last one like I did in cleanup above
Invalid language element: <
Assemble: operation completed with errors.
would it be <:> instead of =?
wildgoose 420 Practically a Posting Shark
Hmm!
Try moving the iLABEL equates into the data area.
malugirl4 0 Junior Poster in Training
no its saying the same thing. when i did it I think i had to change it to iSAFE:
wildgoose 420 Practically a Posting Shark
Try it!
malugirl4 0 Junior Poster in Training
yeah it worked..
<---- Set the last one like I did in cleanup above
Is this referring to the conditions?
wildgoose 420 Practically a Posting Shark
No finish the initializations.
Then after the randomization of 1...4
Look at the snippet I did and see if you can finish them! Your four memovement states!
Also save that random value in your robot states array.
Remember, you'll have to get the address of each variable, then store the value at that variable.
Get address
load value into register from register referrenced memory,
do register increment/decrement math
store new value back into memory.
wildgoose 420 Practically a Posting Shark
No need to past all the code again.
Paste from # Setup variables
to where you leave off editting your code for the four movement states.
For breadcrumbs you may want to insert a system-integer print to print out the random number that's generated for those 1...4
malugirl4 0 Junior Poster in Training
.data # variable declarations follow this line
iSAFE: 1
iCHASM: 2
iTRAP: 3
iDESTINATION: 4
maze: .space 144 # 9x9 stored in a 16x9 buffer
robot_x: .word 0
robot_y: .word 0
robot_m_x: .word 0
robot_m_y: .word 0
robot_instructions: .space 244
MsgRS1: .asciiz "Robot is at a safe place"
MsgRS2: .asciiz "Robot falls into Chasm"
MsgRS3: .asciiz "Robot falls into the trap"
MsgRS4: .asciiz "Robot reaches Destination"
MsgRS5: .asciiz "Robot fails to reach Destination"
.text # CODE SECTION OF ASM FILE
#main:
li $v0,30 # Get time
syscall # CMD: Get Time
# $a0 = lower 32-bits, $a1=upper 32-bits
# Seed RNG (Random Number Generator)
move $a1,$a0 # get lower 32-bit time as seed
li $a0,0 # Rng#0
syscall # CMD: Seed the RNG
# Clear Entire Maze Array
la $t0, maze # load address of maze
li $t3, 0
li $t1, 144
clr: # repeat if not finished yet.
la $t0, maze # base address
li $t3, 2 # maze[i] = 0
sb $t3, 0($t0)
add $t0, $t0, 1 # address++
add $t1, $t1, -1 # count--
bgtz $t1, clr
# Setup variables
la $t0, maze # base address
li $t3, iSAFE # maze[1][1] = 1;
sb $t3, 0x12($t0) # 1 x 16 + 1
li $t3, iCHASM
sb $t3, 0x12($t0) # maze[1][2] = 2
sb $t3, 0x24($t0) # maze[2][4] = 2
li $t3, iTRAP
sb $t3, 0x23($t0) # maze[2][3]
sb $t3, 0x34($t0) # maze[3][4]
<---- Set the last one like I did in cleanup above
r = (rand() % 3) + 1; #1...4
addi $a0, $a0, -1
bnez Try2
# if (r == 1) then // move
robot_x = robot_m_x;
robot_y = robot_m_y + 1;
endif
jr nxt
Try2:
addi $a0, $a0, -1 // was (2)?
# if (r == 2) // jump
robot_x = robot_m_x;
robot_y = robot_m_y + 2 ;
# endif
jr nxt
Try2:
addi $a0, $a0, -1 //
# if (r == 2) // jump
robot_x = robot_m_x;
robot_y = robot_m_y + 2 ;
# endif
jr nxt
addi $a0, $a0, -1
# if (r == 3) // left
robot_x = robot_m_x - 1;
# endif
jr nxt
addi $a0, $a0, -1
# if (r == 4) // Right
robot_x = robot_m_x + 1;
#`endif
jr nxt
nxt:
la $t0, maze # base address
li $t3, iDESTINATION # maze[3][2] = 4;
sb $t3, 0x12($t0) # 1 x 16 + 4
sb $t3, 0($t0) # Set value from array
addi $t0, $t0, 1 # increment Maze address
addi $t1, $t1, -1 # decrement loop counter
bgtz $t1, clr # repeat if not finished yet.
la $a0, MsgRS1 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
# Get a Random #
li $a0, 0 # Rng#
li $a1, 4 # rand() %4 {0...3}
li $v0, 42
syscall # Get RNG
# $a0 = {0...3}
add $a0, $a0, 1 # {1...4}
wildgoose 420 Practically a Posting Shark
What timezone are you in?
You may want to bring what you have into your teacher tomorrow and ask for the weekend to finish it.
Use what you told me that you've never programmed MIPS assembly before and you're learning as you go on this project, and you need a bit more time!
malugirl4 0 Junior Poster in Training
its 1:15 am here..Am I close to being done?
wildgoose 420 Practically a Posting Shark
You're missing the variable setup for destination.
robot_x
robot_y
robot_state
Where I had r = (rand %3)
you should have replaced it with the random 1..4 that was written already.
the robot_x
and Y assignments upon conditionals bnez need to be programmed.
I only roughed in pseudo code.
wildgoose 420 Practically a Posting Shark
no. At the this rate probably about 2 hours, and I haven't been able to work on my own work this evening as I've been focusing on your code.
malugirl4 0 Junior Poster in Training
He won't let me turn it in later.. Tomorrow is the final day of class..we have this due and our exam. Thank you for taking your time with me tho
wildgoose 420 Practically a Posting Shark
You have everything you need!
Look at code that we've written and the original Fibonacci code to see how to do things!
You robot_m_x and _y would be easier with a structure or array then its the same address plus an offset but individually...
la $t0,robot_m_x
lw $t1,0($t0) ; Get value in robot_m_x
add $t1, $t1, 1 ; increment
sw $t1,0($t0) ; Store the valueYou can use this same mechanism for +2, -1 +1 of your various robot arguments.
malugirl4 0 Junior Poster in Training
#setup variables
r = (rand() % 3) + 1; #1...4
addi $a0, $a0,
la $t0,robot_m_x
lw $t1,0($t0) ; Get value in robot_x
add $t1, $t1, 1 ; increment
sw $t1,0($t0) ; Store the value
la $t0,robot_m_x
lw $t1,0($t0) ; Get value in robot_y
add $t1, $t1, 2 ; increment
sw $t1,0($t0) ; Store the value
la $t0,robot_m_x
lw $t1,0($t0) ; Get value in robot_m_x
add $t1, $t1, 3 ; decrement
sw $t1,0($t0) ; Store the value
la $t0,robot_m_x
lw $t1,0($t0) ; Get value in robot_m_y
add $t1, $t1, 4 ; increment
sw $t1,0($t0) ; Store the value
la $t0, maze # base address
li $t3, iDESTINATION # maze[3][2] = 4;
sb $t3, 0x12($t0) # 1 x 16 + 4
wildgoose 420 Practically a Posting Shark
Looking at your code you're on the home stretch!
System.out.println("Robot final location X: " + robot_x + " Y: " + robot_y);
More ASCII text
MsgFinal .asciiz "Robot final location X: "
System - print string
robot_x
get address of robot_x, then get value, then system-print integer
MsgY .asciiz " Y: "
print MsgY
robot_y print integer
You also need a "\n" message
print it to force a new line for strings that print an integer last.
On regular text strings stick a \n at the end of string like you would in Java.
I'll be focusing on my stuff, but try to finish this, and then I'll review!
malugirl4 0 Junior Poster in Training
Error in assembly line 68 position 3: r = (rand() % 3) + 1; #1...4
Invalid language element: =
Error in assembly line 68 position 13: r = (rand() % 3) + 1; #1...4
Invalid language element: %
Error in assembly line 68 position 20: r = (rand() % 3) + 1; #1...4
Invalid language element: 1;
Error in assembly line 71 position 28: lw $t1,0($t0) ; Get value in robot_m_x
Invalid language element: ;
Error in assembly line 72 position 27: add $t1, $t1, 1 ; increment robot
Invalid language element: ;
Error in assembly line 73 position 26: sw $t1,0($t0) ; Store the value
Invalid language element: ;
Error in assembly line 76 position 28: lw $t1,0($t0) ; Get value in robot_y+2
Invalid language element: ;
Error in assembly line 77 position 27: add $t1, $t1, 2 ; increment
Invalid language element: ;
Error in assembly line 78 position 26: sw $t1,0($t0) ; Store the value
Invalid language element: ;
Error in assembly line 82 position 28: lw $t1,0($t0) ; Get value in robot_m_x-1
Invalid language element: ;
Error in assembly line 83 position 27: add $t1, $t1, 3 ; decrement
Invalid language element: ;
Error in assembly line 84 position 26: sw $t1,0($t0) ; Store the value
Invalid language element: ;
Error in assembly line 88 position 28: lw $t1,0($t0) ; Get value in robot_m_x+1
Invalid language element: ;
Error in assembly line 89 position 27: add $t1, $t1, 4 ; increment
Invalid language element: ;
Error in assembly line 90 position 26: sw $t1,0($t0) ; Store the value
Invalid language element: ;
Assemble: operation completed with errors.
wildgoose 420 Practically a Posting Shark
Things like (rand %3) are comments for reference for you!
; is habit. Should be # to mean comment.
Other assemblers use <;> not <#> for comments!
wildgoose 420 Practically a Posting Shark
Did you correct for those comments?
About ready for another code review?
malugirl4 0 Junior Poster in Training
Error in assembly line 51 position 10: "iSAFE": operand is of incorrect type
Error in assembly line 54 position 10: "iCHASM": operand is of incorrect type
Error in assembly line 58 position 10: "iTRAP": operand is of incorrect type
Error in assembly line 64 position 10: "iDESTINATION": operand is of incorrect type
Error in assembly line 70 position 1: "addi": Too few or incorrectly formatted operands. Expected: addi $1,$2,-100
Error in assembly line 116 position 1: "MsgFinal.asciiz" directive cannot appear in text segment
Error in assembly line 118 position 1: "robot_x" directive cannot appear in text segment
Error in assembly line 120 position 1: "MsgY." directive cannot appear in text segment
Error in assembly line 121 position 1: "print" directive cannot appear in text segment
Error in assembly line 123 position 1: "robot_y" directive cannot appear in text segment
Error in assembly line 124 position 1: ""\n"" directive cannot appear in text segment
Assemble: operation completed with errors.
malugirl4 0 Junior Poster in Training
i fixed the iSafe by adding :
Error in assembly line 51 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 54 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 58 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 64 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 70 position 1: "addi": Too few or incorrectly formatted operands. Expected: addi $1,$2,-100
Error in assembly line 116 position 1: "MsgFinal.asciiz" directive cannot appear in text segment
Error in assembly line 118 position 1: "robot_x" directive cannot appear in text segment
Error in assembly line 120 position 1: "MsgY." directive cannot appear in text segment
Error in assembly line 121 position 1: "print" directive cannot appear in text segment
Error in assembly line 123 position 1: "robot_y" directive cannot appear in text segment
Error in assembly line 124 position 1: ""\n"" directive cannot appear in text segment
Assemble: operation completed with errors.
wildgoose 420 Practically a Posting Shark
Don't forget you need to define those asciiz strings in the top of the file in the .data section.
Make sure there's a space or tab between label: and .asciiz
MsgFinal.asciiz is probably that and missing <:> colon
li $a1, 4
li $t1, 0
NOT li $1,-100 Load Immediate $register, immediate value
addi has same problem!
malugirl4 0 Junior Poster in Training
Error in assembly line 51 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 52 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 54 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 55 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 56 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 58 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 64 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 70 position 1: "addi" is an instruction name and cannot be used as a label
Error in assembly line 70 position 1: "addi": Too few or incorrectly formatted operands. Expected: addi $1,$2,-100
Error in assembly line 72 position 1: "li$t1" directive cannot appear in text segment
Error in assembly line 118 position 18: ""Robot final location X: "" directive cannot appear in text segment
Error in assembly line 120 position 1: "robot_x" directive cannot appear in text segment
Error in assembly line 122 position 1: "MsgY." directive cannot appear in text segment
Error in assembly line 123 position 1: "print" directive cannot appear in text segment
Error in assembly line 125 position 1: "robot_y" directive cannot appear in text segment
Error in assembly line 126 position 1: ""\n"" directive cannot appear in text segment
Assemble: operation completed with errors.
# Setup variables
la $t0, maze # base address
li $a1,4 iSAFE:
sb $t1,0 0x11($t0) # maze[1][1] = 1;
li $a1,4 iCHASM:
sb $t1,0, 0x12($t0) # maze[1][2] = 2
sb $t1,0 0x24($t0) # maze[2][4] = 2
li $a1, iTRAP:
sb $t1, 0x23($t0) # maze[2][3]
sb $t1, 0x34($t0) # maze[3][4]
la $t0, maze # base address
li $a1, iDESTINATION: # maze[3][2] = 4;
sb $t1, 0x12($t0) # 1 x 16 + 4
#setup variables
#1...4
addi:
li $a1,4
li$t1, 0
la $t0,robot_x
lw $t1,0($t0) # Get value in robot_m_x
add $t1, $t1, 1 # increment robot
sw $t1,0($t0) #Store the value
la $t0,robot_y
lw $t1,0($t0) # Get value in robot_y+2
add $t1, $t1, 2 #increment
sw $t1,0($t0) #Store the value
la $t0,robot_m_x
lw $t1,0($t0) # Get value in robot_m_x-1
add $t1, $t1, 3 # decrement
sw $t1,0($t0) # Store the value
la $t0,robot_m_y
lw $t1,0($t0) # Get value in robot_m_x+1
add $t1, $t1, 4 #increment
sw $t1,0($t0) #Store the value
sb $t3, 0($t0) # Set value from array
addi $t0, $t0, 1 # increment Maze address
addi $t1, $t1, -1 # decrement loop counter
bgtz $t1, clr # repeat if not finished yet.
la $a0, MsgRS1 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
# Get a Random #
li $a0, 0 # Rng#
li $a1, 4 # rand() %4 {0...3}
li $v0, 42
syscall # Get RNG
# $a0 = {0...3}
add $a0, $a0, 1 # {1...4}
MsgFinal.asciiz: "Robot final location X: "
robot_x
MsgY. asciiz "Y:"
print Msgy
robot_y print integer
"\n"
wildgoose 420 Practically a Posting Shark
Post all the code.
I need to hit the hay and I'll make one last quick pass on it!
malugirl4 0 Junior Poster in Training
.data # variable declarations follow this line
iSAFE: 1
iCHASM: 2
iTRAP: 3
iDESTINATION: 4
maze: .space 144 # 9x9 stored in a 16x9 buffer
robot_x: .word 0
robot_y: .word 0
robot_m_x: .word 0
robot_m_y: .word 0
robot_instructions: .space 244
MsgRS1: .asciiz "Robot is at a safe place"
MsgRS2: .asciiz "Robot falls into Chasm"
MsgRS3: .asciiz "Robot falls into the trap"
MsgRS4: .asciiz "Robot reaches Destination"
MsgRS5: .asciiz "Robot fails to reach Destination"
.text # CODE SECTION OF ASM FILE
#main:
li $v0,30 # Get time
syscall # CMD: Get Time
# $a0 = lower 32-bits, $a1=upper 32-bits
# Seed RNG (Random Number Generator)
move $a1,$a0 # get lower 32-bit time as seed
li $a0,0 # Rng#0
syscall # CMD: Seed the RNG
# Clear Entire Maze Array
la $t0, maze # load address of maze
li $t3, 0
li $t1, 144
clr: # repeat if not finished yet.
la $t0, maze # base address
li $t3, 2 # maze[i] = 0
sb $t3, 0($t0)
add $t0, $t0, 1 # address++
add $t1, $t1, -1 # count--
bgtz $t1, clr
# Setup variables
la $t0, maze # base address
li $a1,4 iSAFE:
sb $t1,0 0x11($t0) # maze[1][1] = 1;
li $a1,4 iCHASM:
sb $t1,0, 0x12($t0) # maze[1][2] = 2
sb $t1,0 0x24($t0) # maze[2][4] = 2
li $a1, iTRAP:
sb $t1, 0x23($t0) # maze[2][3]
sb $t1, 0x34($t0) # maze[3][4]
la $t0, maze # base address
li $a1, iDESTINATION: # maze[3][2] = 4;
sb $t1, 0x12($t0) # 1 x 16 + 4
#setup variables
#1...4
addi:
li $a1,4
li$t1, 0
la $t0,robot_x
lw $t1,0($t0) # Get value in robot_m_x
add $t1, $t1, 1 # increment robot
sw $t1,0($t0) #Store the value
la $t0,robot_y
lw $t1,0($t0) # Get value in robot_y+2
add $t1, $t1, 2 #increment
sw $t1,0($t0) #Store the value
la $t0,robot_m_x
lw $t1,0($t0) # Get value in robot_m_x-1
add $t1, $t1, 3 # decrement
sw $t1,0($t0) # Store the value
la $t0,robot_m_y
lw $t1,0($t0) # Get value in robot_m_x+1
add $t1, $t1, 4 #increment
sw $t1,0($t0) #Store the value
sb $t3, 0($t0) # Set value from array
addi $t0, $t0, 1 # increment Maze address
addi $t1, $t1, -1 # decrement loop counter
bgtz $t1, clr # repeat if not finished yet.
la $a0, MsgRS1 # load address of print heading
li $v0, 4 # specify Print String service
syscall # print heading
# Get a Random #
li $a0, 0 # Rng#
li $a1, 4 # rand() %4 {0...3}
li $v0, 42
syscall # Get RNG
# $a0 = {0...3}
add $a0, $a0, 1 # {1...4}
MsgFinal.asciiz: "Robot final location X: "
robot_x
MsgY. asciiz "Y:"
print Msgy
robot_y print integer
"\n"
wildgoose 420 Practically a Posting Shark
So is
iSAFE: 1
how they do equates on the MARS toolset?
malugirl4 0 Junior Poster in Training
Mars has no errors with it. Yes iSafe is 1
Error in assembly line 51 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 52 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 54 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 55 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 56 position 2: "sb": Too many or incorrectly formatted operands. Expected: sb $1,-100($2)
Error in assembly line 58 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 64 position 2: "li": Too many or incorrectly formatted operands. Expected: li $1,-100
Error in assembly line 70 position 1: "addi" is an instruction name and cannot be used as a label
Error in assembly line 70 position 1: "addi": Too few or incorrectly formatted operands. Expected: addi $1,$2,-100
Error in assembly line 72 position 1: "li$t1" directive cannot appear in text segment
Error in assembly line 118 position 18: ""Robot final location X: "" directive cannot appear in text segment
Error in assembly line 120 position 1: "robot_x" directive cannot appear in text segment
Error in assembly line 122 position 1: "MsgY." directive cannot appear in text segment
Error in assembly line 123 position 1: "print" directive cannot appear in text segment
Error in assembly line 125 position 1: "robot_y" directive cannot appear in text segment
Error in assembly line 126 position 1: ""\n"" directive cannot appear in text segment
Assemble: operation completed with errors.
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