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Kevin26's avatar
Kevin26
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2 years ago

NIOS V/m SC.W instruction generating Illegal Instruction Exception

I have ported the RTEMS RTOS over to the NIOS V/m processor. During a context switch, there is a dummy sc.w instruction to clear any reservations. When this instruction is executed, an illegal inst...
Nios Cpu
Kevin26's avatar
Kevin26
Icon for New Contributor rankNew Contributor
2 years ago

I'm not receiving an error message. I'm just getting an illegal instruction exception when the NIOS V/m is trying to execute a sc.w instruction. I just need to know whether the NIOS V/m supports the LR/SC instructions and if so why would the NIOS V/m generate the exception.