From c60e1a9e2f48f8c011a4967247a7618d42c53462 Mon Sep 17 00:00:00 2001 From: Christopher Celio Date: Tue, 23 Jun 2015 18:08:49 -0700 Subject: Avoid "csrw stvec" if stvec_handler doesn't exist. --- p/riscv_test.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/p/riscv_test.h b/p/riscv_test.h index b82b108..efd9c52 100644 --- a/p/riscv_test.h +++ b/p/riscv_test.h @@ -168,8 +168,9 @@ _start: \ RISCV_MULTICORE_DISABLE; \ CHECK_XLEN; \ la t0, stvec_handler; \ + beqz t0, 1f; \ csrw stvec, t0; \ - li t0, MSTATUS_PRV1 | MSTATUS_PRV2 | MSTATUS_IE1 | MSTATUS_IE2; \ +1: li t0, MSTATUS_PRV1 | MSTATUS_PRV2 | MSTATUS_IE1 | MSTATUS_IE2; \ csrc mstatus, t0; \ init; \ EXTRA_INIT; \ -- cgit v1.1