MIPS: No error in Mars IDE, but error in QTSpim [duplicate]
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What is the “relationship” between addi and subi?
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Why doesn't there exists a subi opcode for MIPS?
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I wrote my MIPS code in Mars, and it worked completely fine. But, I am having errors in QTSpim saying
Error: "Instruction references undefined symbol at 0x00400158
[0x00400158] 0x08000000 j 0x00000000 [next] ; 115: j next"
I have no idea what the error is telling. My instructor will test the code in QTSpim, so I have to make sure it works there.
assembly mips mars-simulator spim qtspim
asked Nov 18 at 8:42
Chintan Patel
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marked as duplicate by Peter Cordes assembly
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Nov 18 at 13:33
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
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favorite
This question already has an answer here:
What is the “relationship” between addi and subi?
3 answers
Why doesn't there exists a subi opcode for MIPS?
2 answers
I wrote my MIPS code in Mars, and it worked completely fine. But, I am having errors in QTSpim saying
Error: "Instruction references undefined symbol at 0x00400158
[0x00400158] 0x08000000 j 0x00000000 [next] ; 115: j next"
I have no idea what the error is telling. My instructor will test the code in QTSpim, so I have to make sure it works there.
assembly mips mars-simulator spim qtspim
asked Nov 18 at 8:42
Chintan Patel
32
marked as duplicate by Peter Cordes assembly
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Nov 18 at 13:33
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
1
There is nosubiinstruction. Change it toaddi $t2, $t2, -1. As for the second error, make surenextis properly defined.
– Jester
Nov 18 at 12:02
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
1
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and thej nextinstruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)
– Peter Cordes
Nov 18 at 14:04
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
This question already has an answer here:
What is the “relationship” between addi and subi?
3 answers
Why doesn't there exists a subi opcode for MIPS?
2 answers
I wrote my MIPS code in Mars, and it worked completely fine. But, I am having errors in QTSpim saying
Error: "Instruction references undefined symbol at 0x00400158
[0x00400158] 0x08000000 j 0x00000000 [next] ; 115: j next"
I have no idea what the error is telling. My instructor will test the code in QTSpim, so I have to make sure it works there.
assembly mips mars-simulator spim qtspim
asked Nov 18 at 8:42
Chintan Patel
32
This question already has an answer here:
What is the “relationship” between addi and subi?
3 answers
Why doesn't there exists a subi opcode for MIPS?
2 answers
I wrote my MIPS code in Mars, and it worked completely fine. But, I am having errors in QTSpim saying
Error: "Instruction references undefined symbol at 0x00400158
[0x00400158] 0x08000000 j 0x00000000 [next] ; 115: j next"
I have no idea what the error is telling. My instructor will test the code in QTSpim, so I have to make sure it works there.
This question already has an answer here:
What is the “relationship” between addi and subi?
3 answers
Why doesn't there exists a subi opcode for MIPS?
2 answers
assembly mips mars-simulator spim qtspim
assembly mips mars-simulator spim qtspim
asked Nov 18 at 8:42
Chintan Patel
32
asked Nov 18 at 8:42
Chintan Patel
32
edited Nov 18 at 13:58
asked Nov 18 at 8:42
Chintan Patel
32
asked Nov 18 at 8:42
Chintan Patel
32
asked Nov 18 at 8:42
Chintan Patel
32
32
marked as duplicate by Peter Cordes assembly
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Nov 18 at 13:33
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
marked as duplicate by Peter Cordes assembly
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Nov 18 at 13:33
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
1
There is nosubiinstruction. Change it toaddi $t2, $t2, -1. As for the second error, make surenextis properly defined.
– Jester
Nov 18 at 12:02
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
1
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and thej nextinstruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)
– Peter Cordes
Nov 18 at 14:04
add a comment |
1
There is nosubiinstruction. Change it toaddi $t2, $t2, -1. As for the second error, make surenextis properly defined.
– Jester
Nov 18 at 12:02
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
1
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and thej nextinstruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)
– Peter Cordes
Nov 18 at 14:04
1
1
There is no
subi instruction. Change it to addi $t2, $t2, -1. As for the second error, make sure next is properly defined.– Jester
Nov 18 at 12:02
There is no
subi instruction. Change it to addi $t2, $t2, -1. As for the second error, make sure next is properly defined.– Jester
Nov 18 at 12:02
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
1
1
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and the
j next instruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)– Peter Cordes
Nov 18 at 14:04
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and the
j next instruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)– Peter Cordes
Nov 18 at 14:04
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There is no
subiinstruction. Change it toaddi $t2, $t2, -1. As for the second error, make surenextis properly defined.– Jester
Nov 18 at 12:02
What do you mean by properly defined? I checked it again but it looks ok. But, still getting an error in QTSpim.
– Chintan Patel
Nov 18 at 14:00
1
edit your question with a Minimal, Complete, and Verifiable example that reproduces the error in SPIM but works in MARS. Probably just 2 lines: the label definition and the
j nextinstruction. (Make sure that actual 2-line file assembles in MARS but not SPIM.)– Peter Cordes
Nov 18 at 14:04