riscv: ECALL and nested interrupts
#169
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almindor
previously approved these changes
Dec 29, 2023
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I think I found a 🐛 @almindor can you take a second look? |
almindor
approved these changes
Dec 29, 2023
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This PR adds a wrapper to trigger environment calls. It also adds a new function for allowing nested interrupts in M and S mode. Nested interrupts are specially useful for RTOSs, as they can implement preemption in this way.