1 files changed, 58 insertions, 0 deletions
diff --git a/tests/tcg/mips/mips32-dsp/subq_s_w.c b/tests/tcg/mips/mips32-dsp/subq_s_w.c
new file mode 100644
index 0000000000..09022e9c85
--- /dev/null
+++ b/tests/tcg/mips/mips32-dsp/subq_s_w.c
@@ -0,0 +1,58 @@
+#include<stdio.h>
+#include<assert.h>
+
+int main()
+{
+    int rd, rs, rt, dsp;
+    int result, resultdsp;
+
+    rs = 0x12345678;
+    rt = 0x87654321;
+    result    = 0x7FFFFFFF;
+    resultdsp = 0x01;
+
+    __asm
+        ("subq_s.w %0, %2, %3\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rd), "=r"(dsp)
+         : "r"(rs), "r"(rt)
+        );
+    dsp = (dsp >> 20) & 0x01;
+    assert(dsp == resultdsp);
+    assert(rd  == result);
+
+    rs = 0x66666;
+    rt = 0x55555;
+    result    = 0x11111;
+    resultdsp = 0x01;
+
+    __asm
+        ("subq_s.w %0, %2, %3\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rd), "=r"(dsp)
+         : "r"(rs), "r"(rt)
+        );
+    dsp = (dsp >> 20) & 0x01;
+    assert(dsp == resultdsp);
+    assert(rd  == result);
+
+
+#if 0
+    rs = 0x35555555;
+    rt = 0xf5555555;
+    result    = 0x80000000;
+    resultdsp = 0x01;
+
+    __asm
+        ("subq_s.w %0, %2, %3\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rd), "=r"(dsp)
+         : "r"(rs), "r"(rt)
+        );
+
+    dsp = (dsp >> 20) & 0x01;
+    assert(dsp == resultdsp);
+    assert(rd  == result);
+#endif
+    return 0;
+}