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Diffstat (limited to 'tests/tcg/mips/mips32-dsp/extr_s_h.c')
-rw-r--r--tests/tcg/mips/mips32-dsp/extr_s_h.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/tcg/mips/mips32-dsp/extr_s_h.c b/tests/tcg/mips/mips32-dsp/extr_s_h.c
index b2129134c8..9bc2a63cc2 100644
--- a/tests/tcg/mips/mips32-dsp/extr_s_h.c
+++ b/tests/tcg/mips/mips32-dsp/extr_s_h.c
@@ -59,5 +59,28 @@ int main()
     assert(dsp == 0);
     assert(result == rt);
 
+    /* Clear dsp */
+    dsp = 0;
+    __asm
+        ("wrdsp %0\n\t"
+         :
+         : "r"(dsp)
+        );
+
+    ach = 0x123;
+    acl = 0x87654321;
+    result = 0x1238;
+    __asm
+        ("mthi %2, $ac1\n\t"
+         "mtlo %3, $ac1\n\t"
+         "extr_s.h %0, $ac1, 28\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rt), "=r"(dsp)
+         : "r"(ach), "r"(acl)
+        );
+    dsp = (dsp >> 23) & 0x01;
+    assert(dsp == 0);
+    assert(result == rt);
+
     return 0;
 }