Wang Chen 992b0ba91c fixed bug for syscall example ...

The original logic of setting mstatus has problem.
The or directive cannot set .MPP to 0.

Optimize the original code and use csrs and csrc instead.

Note we cannot assume the default value of mstatus is zero.
rvos may not be the first one to run on the system/virt.
It just so lucky that the initial value of mstatus is zero
on QEMU/virt.

Signed-off-by: Wang Chen <wangchen20@iscas.ac.cn>

2024-03-25 21:10:40 +08:00

..

asm

Compatible support for new gcc

2023-12-19 08:26:42 +08:00

os

fixed bug for syscall example

2024-03-25 21:10:40 +08:00

common.mk

Compatible support for new gcc

2023-12-19 08:26:42 +08:00