1 files changed, 63 insertions, 0 deletions
diff --git a/tests/tcg/s390x/cvd.c b/tests/tcg/s390x/cvd.c
new file mode 100644
index 0000000000..d776688985
--- /dev/null
+++ b/tests/tcg/s390x/cvd.c
@@ -0,0 +1,63 @@
+/*
+ * Test the CONVERT TO DECIMAL instruction.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+static uint64_t cvd(int32_t x)
+{
+    uint64_t ret;
+
+    asm("cvd %[x],%[ret]" : [ret] "=R" (ret) : [x] "r" (x));
+
+    return ret;
+}
+
+static uint64_t cvdy(int32_t x)
+{
+    uint64_t ret;
+
+    asm("cvdy %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x));
+
+    return ret;
+}
+
+static __uint128_t cvdg(int64_t x)
+{
+    __uint128_t ret;
+
+    asm("cvdg %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x));
+
+    return ret;
+}
+
+int main(void)
+{
+    __uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070;
+
+    assert(cvd(0) == 0xc);
+    assert(cvd(1) == 0x1c);
+    assert(cvd(25594) == 0x25594c);
+    assert(cvd(-1) == 0x1d);
+    assert(cvd(0x7fffffff) == 0x2147483647c);
+    assert(cvd(-0x80000000) == 0x2147483648d);
+
+    assert(cvdy(0) == 0xc);
+    assert(cvdy(1) == 0x1c);
+    assert(cvdy(25594) == 0x25594c);
+    assert(cvdy(-1) == 0x1d);
+    assert(cvdy(0x7fffffff) == 0x2147483647c);
+    assert(cvdy(-0x80000000) == 0x2147483648d);
+
+    assert(cvdg(0) == 0xc);
+    assert(cvdg(1) == 0x1c);
+    assert(cvdg(25594) == 0x25594c);
+    assert(cvdg(-1) == 0x1d);
+    assert(cvdg(0x7fffffffffffffff) == (m + 0xc));
+    assert(cvdg(-0x8000000000000000) == (m + 0x1d));
+
+    return EXIT_SUCCESS;
+}