From 53a72dfda584c8d54df61f7c1aea9f9ff86b138c Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Tue, 1 Nov 2011 01:51:02 +0400 Subject: [PATCH] target-xtensa: mask out undefined bits of WINDOWSTART SR According to ISA, table 5-156, bits 32:NAREG/4 of the WINDOWSTART SR must be zero. Signed-off-by: Max Filippov --- target-xtensa/translate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index 1688bb246..b724d466d 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); }