diff mbox

[1/7] target-xtensa: mask out undefined bits of WINDOWBASE SR

Message ID 1320099455-17326-2-git-send-email-jcmvbkbc@gmail.com
State New
Headers show

Commit Message

Max Filippov Oct. 31, 2011, 10:17 p.m. UTC 
According to ISA, table 5-156, bits 32:NAREG/4 of the WINDOWSTART SR
must be zero.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 target-xtensa/translate.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff mbox

Patch

diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index 1688bb2..b724d46 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -466,7 +466,7 @@  static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
 
 static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
 {
-    tcg_gen_mov_i32(cpu_SR[sr], v);
+    tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
     reset_used_window(dc);
 }