andrey/rCore-Tutorial-v3
1
0
Fork 0
mirror of https://github.com/rcore-os/rCore-Tutorial-v3.git synced 2024-11-22 09:26:26 +04:00
Code Issues Projects Releases Wiki Activity

sbi spec uses a6, a7 as sbicall id, so we need to set a6 to 0

Browse Source
This commit is contained in:
Yu Chen 2022-06-21 23:57:33 +08:00
parent 6730b82eed
commit e87fb6a4cb
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
os/src/sbi.rs
View File

@ -17,6 +17,7 @@ fn sbi_call(which: usize, arg0: usize, arg1: usize, arg2: usize) -> usize {
let mut ret;
unsafe {
core::arch::asm!(
"li x16, 0",
"ecall",
inlateout("x10") arg0 => ret,
in("x11") arg1,