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27 lines
444 B
27 lines
444 B
.include "exit_return.s"
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.global _start
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_start:
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# Set base value of a0 to 'test failed'
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addi a0, zero, 1
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# Construct value that ra should have in t0
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auipc t0, 0
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addi t0, t0, 12
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# Jump and link
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jal ra, fn0
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exret
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fnNeg:
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# All good
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addi a0, zero, 0
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exret
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fn0:
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# Check ra value with our t0 construct
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beq t0, ra, eq0
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exret
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eq0:
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# Try to jump back to a negative offset
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jal ra, fnNeg
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