1 files changed, 37 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips64-dsp/modsub.c b/qemu/tests/tcg/mips/mips64-dsp/modsub.c
new file mode 100644
index 000000000..2c91cb4c5
--- /dev/null
+++ b/qemu/tests/tcg/mips/mips64-dsp/modsub.c
@@ -0,0 +1,37 @@
+#include "io.h"
+
+int main(void)
+{
+    long long rd, rs, rt;
+    long long result;
+
+    rs     = 0xFFFFFFFF;
+    rt     = 0x000000FF;
+    result = 0xFFFFFF00;
+    __asm
+        ("modsub %0, %1, %2\n\t"
+         : "=r"(rd)
+         : "r"(rs), "r"(rt)
+        );
+    if (result != rd) {
+        printf("modsub wrong\n");
+
+        return -1;
+    }
+
+    rs     = 0x00000000;
+    rt     = 0x00CD1FFF;
+    result = 0x0000CD1F;
+    __asm
+        ("modsub %0, %1, %2\n\t"
+         : "=r"(rd)
+         : "r"(rs), "r"(rt)
+        );
+    if (result != rd) {
+        printf("modsub wrong\n");
+
+        return -1;
+    }
+
+    return 0;
+}