tcg: Implement multiword multiply helpers

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 15 insertions, 1 deletions

diff --git a/tcg-runtime.c b/tcg-runtime.c
index abfc36498f..4b66e51ce7 100644
--- a/tcg-runtime.c
+++ b/tcg-runtime.c
@@ -22,7 +22,7 @@
  * THE SOFTWARE.
  */
 #include <stdint.h>
-
+#include "qemu/host-utils.h"
 #include "tcg/tcg-runtime.h"
 
 /* 32-bit helpers */
@@ -83,3 +83,17 @@ uint64_t tcg_helper_remu_i64(uint64_t arg1, uint64_t arg2)
 {
     return arg1 % arg2;
 }
+
+uint64_t tcg_helper_muluh_i64(uint64_t arg1, uint64_t arg2)
+{
+    uint64_t l, h;
+    mulu64(&l, &h, arg1, arg2);
+    return h;
+}
+
+int64_t tcg_helper_mulsh_i64(int64_t arg1, int64_t arg2)
+{
+    uint64_t l, h;
+    muls64(&l, &h, arg1, arg2);
+    return h;
+}