1 files changed, 32 insertions, 0 deletions
diff --git a/tests/tcg/mips/mips64-dsp/msub.c b/tests/tcg/mips/mips64-dsp/msub.c
new file mode 100644
index 00000000..75066b59
--- /dev/null
+++ b/tests/tcg/mips/mips64-dsp/msub.c
@@ -0,0 +1,32 @@
+#include "io.h"
+
+int main(void)
+{
+    long long achi, acli, rs, rt;
+    long long acho, aclo;
+    long long resulth, resultl;
+
+    rs      = 0x00BBAACC;
+    rt      = 0x0B1C3D2F;
+    achi    = 0x00004433;
+    acli    = 0xFFCC0011;
+    resulth = 0xFFFFFFFFFFF81F29;
+    resultl = 0xFFFFFFFFB355089D;
+
+    __asm
+        ("mthi %2, $ac1\n\t"
+         "mtlo %3, $ac1\n\t"
+         "msub $ac1, %4, %5\n\t"
+         "mfhi %0, $ac1\n\t"
+         "mflo %1, $ac1\n\t"
+         : "=r"(acho), "=r"(aclo)
+         : "r"(achi), "r"(acli), "r"(rs), "r"(rt)
+        );
+    if ((acho != resulth) || (aclo != resultl)) {
+        printf("msub wrong\n");
+
+        return -1;
+    }
+
+    return 0;
+}