Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/sparc/translate.c | 11 +++++++++++
target/sparc/insns.decode | 1 +
2 files changed, 12 insertions(+)
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 4775e39240..5694420a93 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -3316,6 +3316,17 @@ static void do_wrpowerdown(DisasContext *dc, TCGv src)
TRANS(WRPOWERDOWN, POWERDOWN, do_wr_special, a, supervisor(dc), do_wrpowerdown)
+static void do_wrmwait(DisasContext *dc, TCGv src)
+{
+ /*
+ * TODO: This is a stub version of mwait, which merely recognizes
+ * interrupts immediately and does not wait.
+ */
+ dc->base.is_jmp = DISAS_EXIT;
+}
+
+TRANS(WRMWAIT, VIS4, do_wr_special, a, true, do_wrmwait)
+
static void do_wrpsr(DisasContext *dc, TCGv src)
{
gen_helper_wrpsr(tcg_env, src);
diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 1f9e07e526..2927116031 100644
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -124,6 +124,7 @@ CALL 01 i:s30
WRTICK_CMPR 10 10111 110000 ..... . ............. @n_r_ri
WRSTICK 10 11000 110000 ..... . ............. @n_r_ri
WRSTICK_CMPR 10 11001 110000 ..... . ............. @n_r_ri
+ WRMWAIT 10 11100 110000 ..... . ............. @n_r_ri
]
# Before v8, rs1==0 was WRY, and the rest executed as nop.
[
--
2.34.1
