1 files changed, 62 insertions, 0 deletions
diff --git a/qemu/tests/tcg/mips/mips32-dsp/extp.c b/qemu/tests/tcg/mips/mips32-dsp/extp.c
new file mode 100644
index 000000000..b18bdb34c
--- /dev/null
+++ b/qemu/tests/tcg/mips/mips32-dsp/extp.c
@@ -0,0 +1,62 @@
+#include<stdio.h>
+#include<assert.h>
+
+int main()
+{
+    int rt, ach, acl, dsp;
+    int result;
+
+    ach = 0x05;
+    acl = 0xB4CB;
+    dsp = 0x07;
+    result = 0x000C;
+
+    __asm
+        ("wrdsp %1, 0x01\n\t"
+         "mthi %2, $ac1\n\t"
+         "mtlo %3, $ac1\n\t"
+         "extp %0, $ac1, 0x03\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rt), "+r"(dsp)
+         : "r"(ach), "r"(acl)
+        );
+    dsp = (dsp >> 14) & 0x01;
+    assert(dsp == 0);
+    assert(result == rt);
+
+    ach = 0x05;
+    acl = 0xB4CB;
+    dsp = 0x01;
+
+    __asm
+        ("wrdsp %1, 0x01\n\t"
+         "mthi %2, $ac1\n\t"
+         "mtlo %3, $ac1\n\t"
+         "extp %0, $ac1, 0x03\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rt), "+r"(dsp)
+         : "r"(ach), "r"(acl)
+        );
+    dsp = (dsp >> 14) & 0x01;
+    assert(dsp == 1);
+
+    ach = 0;
+    acl = 0x80000001;
+    dsp = 0x1F;
+    result = 0x80000001;
+
+    __asm
+        ("wrdsp %1\n\t"
+         "mthi %2, $ac2\n\t"
+         "mtlo %3, $ac2\n\t"
+         "extp %0, $ac2, 0x1F\n\t"
+         "rddsp %1\n\t"
+         : "=r"(rt), "+r"(dsp)
+         : "r"(ach), "r"(acl)
+        );
+    dsp = (dsp >> 14) & 0x01;
+    assert(dsp == 0);
+    assert(result == rt);
+
+    return 0;
+}