1 files changed, 59 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips64-dsp/dmsub.c b/qemu/tests/tcg/mips/mips64-dsp/dmsub.c
new file mode 100644
index 000000000..16be6170e
--- /dev/null
+++ b/qemu/tests/tcg/mips/mips64-dsp/dmsub.c
@@ -0,0 +1,59 @@
+#include "io.h"
+
+int main(void)
+{
+    long long rt, rs;
+    long long achi, acli;
+    long long acho, aclo;
+    long long resh, resl;
+    achi = 0x1;
+    acli = 0x8;
+
+    rs = 0x0000000100000001;
+    rt = 0x0000000200000002;
+
+    resh = 0x1;
+    resl = 0x4;
+
+    __asm
+        ("mthi %2, $ac1 \t\n"
+         "mtlo %3, $ac1 \t\n"
+         "dmsub $ac1, %4, %5\t\n"
+         "mfhi %0, $ac1 \t\n"
+         "mflo %1, $ac1 \t\n"
+         : "=r"(acho), "=r"(aclo)
+         : "r"(achi), "r"(acli), "r"(rs), "r"(rt)
+        );
+    if ((acho != resh) || (aclo != resl)) {
+        printf("1 dmsub error\n");
+
+        return -1;
+    }
+
+    achi = 0xfffffffF;
+    acli = 0xfffffffF;
+
+    rs = 0x8888999977776666;
+    rt = 0x9999888877776666;
+
+    resh = 0xffffffffffffffff;
+    resl = 0x789aae13;
+
+    __asm
+        ("mthi %2, $ac1 \t\n"
+         "mtlo %3, $ac1 \t\n"
+         "dmsub $ac1, %4, %5\t\n"
+         "mfhi %0, $ac1 \t\n"
+         "mflo %1, $ac1 \t\n"
+         : "=r"(acho), "=r"(aclo)
+         : "r"(achi), "r"(acli), "r"(rs), "r"(rt)
+        );
+
+    if ((acho != resh) || (aclo != resl)) {
+        printf("2 dmsub error\n");
+
+        return -1;
+    }
+
+    return 0;
+}