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-rw-r--r--firmware/target/arm/tcc77x/crt0.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/firmware/target/arm/tcc77x/crt0.S b/firmware/target/arm/tcc77x/crt0.S
index 2c5af3f21b..16b80920f4 100644
--- a/firmware/target/arm/tcc77x/crt0.S
+++ b/firmware/target/arm/tcc77x/crt0.S
@@ -218,7 +218,7 @@ vectors_end:
in UIE.
*/
undef_instr_handler:
- mov r0, lr
+ sub r0, lr, #4
mov r1, #0
b UIE