how can i break a String into characters in MIPS assembly,byte by byte.Basicly i want to take a user inputed...
0
.data
str10: .asciiz "Give me a string:n "
.align 2
B: .Space 100
.align 2
C: .Space 100
.text
main:
add $10,$0,$0
StringChanger:
addi $12,$0,100
addi $11,$0,0 #j
addi $13,$0,0 #i
la $a0,str10
li $v0,4
syscall
li $v0,8
la $a0,C
li $a1,100 #arrays length
syscall
la $t0,1($a0)
lb $t1,($t0)
move $v0,$t1
li $v0,4
syscall
string assembly mips mars-simulator
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
add a comment |
0
.data
str10: .asciiz "Give me a string:n "
.align 2
B: .Space 100
.align 2
C: .Space 100
.text
main:
add $10,$0,$0
StringChanger:
addi $12,$0,100
addi $11,$0,0 #j
addi $13,$0,0 #i
la $a0,str10
li $v0,4
syscall
li $v0,8
la $a0,C
li $a1,100 #arrays length
syscall
la $t0,1($a0)
lb $t1,($t0)
move $v0,$t1
li $v0,4
syscall
string assembly mips mars-simulator
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
lborlbusign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.
– Peter Cordes
Nov 14 '18 at 23:35
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
The syscall takes its arg in$a0, so you need tolbu $a0, C($t0)or something.
– Peter Cordes
Nov 15 '18 at 0:20
add a comment |
0
0
0
.data
str10: .asciiz "Give me a string:n "
.align 2
B: .Space 100
.align 2
C: .Space 100
.text
main:
add $10,$0,$0
StringChanger:
addi $12,$0,100
addi $11,$0,0 #j
addi $13,$0,0 #i
la $a0,str10
li $v0,4
syscall
li $v0,8
la $a0,C
li $a1,100 #arrays length
syscall
la $t0,1($a0)
lb $t1,($t0)
move $v0,$t1
li $v0,4
syscall
string assembly mips mars-simulator
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
.data
str10: .asciiz "Give me a string:n "
.align 2
B: .Space 100
.align 2
C: .Space 100
.text
main:
add $10,$0,$0
StringChanger:
addi $12,$0,100
addi $11,$0,0 #j
addi $13,$0,0 #i
la $a0,str10
li $v0,4
syscall
li $v0,8
la $a0,C
li $a1,100 #arrays length
syscall
la $t0,1($a0)
lb $t1,($t0)
move $v0,$t1
li $v0,4
syscall
string assembly mips mars-simulator
string assembly mips mars-simulator
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
edited Nov 14 '18 at 23:40
Peter Cordes
128k18190327
128k18190327
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
asked Nov 14 '18 at 23:32
Nick A.aNick A.a
11
11
lborlbusign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.
– Peter Cordes
Nov 14 '18 at 23:35
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
The syscall takes its arg in$a0, so you need tolbu $a0, C($t0)or something.
– Peter Cordes
Nov 15 '18 at 0:20
add a comment |
lborlbusign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.
– Peter Cordes
Nov 14 '18 at 23:35
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
The syscall takes its arg in$a0, so you need tolbu $a0, C($t0)or something.
– Peter Cordes
Nov 15 '18 at 0:20
lb or lbu sign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.– Peter Cordes
Nov 14 '18 at 23:35
lb or lbu sign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.– Peter Cordes
Nov 14 '18 at 23:35
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
The syscall takes its arg in
$a0, so you need to lbu $a0, C($t0) or something.– Peter Cordes
Nov 15 '18 at 0:20
The syscall takes its arg in
$a0, so you need to lbu $a0, C($t0) or something.– Peter Cordes
Nov 15 '18 at 0:20
add a comment |
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lborlbusign- or zero-extends a byte from memory into a register, and you're already using that. Do that in a loop with an increment to the address. Your code is an unreadable mess because you didn't use code formatting, but I don't see any branch instructions. Obviously you need to loop.– Peter Cordes
Nov 14 '18 at 23:35
yeah sry about the code format ,the thing is that for some reason it prints the whole string not just the 1st character.So i want it to work for 1 first then i will add the loop
– Nick A.a
Nov 14 '18 at 23:38
v0=4 / syscall is print-string. v0=11 / syscall is print character. Read the manual: courses.missouristate.edu/kenvollmar/mars/help/syscallhelp.html
– Peter Cordes
Nov 14 '18 at 23:41
thanks for your time but it just prints ''D'' every time
– Nick A.a
Nov 14 '18 at 23:57
The syscall takes its arg in
$a0, so you need tolbu $a0, C($t0)or something.– Peter Cordes
Nov 15 '18 at 0:20