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riscv-software-src / riscv-pk

RISC-V Proxy Kernel
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Fix local variable register usage for ra #268

Closed MaskRay closed 2 years ago

MaskRay commented 2 years ago

See https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html#Local-Register-Variables "Other than when invoking the Extended asm, the contents of the specified register are not guaranteed."

Also revert 90191ad93eac47d61ab9cc89084050ad1541d160.