add isb after cpacr update

2025-01-06 14:21:59 +08:00 · 2025-01-06 14:21:59 +08:00 · 281ba1370d
commit 281ba1370d
parent 710984bdaf
1 changed files with 1 additions and 0 deletions
--- a/libcortex_a9/src/fpu.rs
+++ b/libcortex_a9/src/fpu.rs
@ -6,6 +6,7 @@ pub fn enable_fpu() {
            mrc p15, 0, r1, c1, c0, 2
            orr r1, r1, (0b1111<<20)
            mcr p15, 0, r1, c1, c0, 2
+            isb

            vmrs r1, fpexc
            orr r1, r1, (1<<30)