X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Ftests%2Ftcg%2Fopenrisc%2Ftest_sub.c;fp=qemu%2Ftests%2Ftcg%2Fopenrisc%2Ftest_sub.c;h=474ec6055b2f98b926ad8dab2fd02b5dbe4ca806;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/tests/tcg/openrisc/test_sub.c b/qemu/tests/tcg/openrisc/test_sub.c
new file mode 100644
index 000000000..474ec6055
--- /dev/null
+++ b/qemu/tests/tcg/openrisc/test_sub.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+int main(void)
+{
+    int a, b;
+    int result;
+
+    a = 0x100;
+    b = 0x100;
+    result = 0x0;
+    __asm
+    ("l.sub %0, %0, %1\n\t"
+     : "+r"(a)
+     : "r"(b)
+    );
+    if (a != result) {
+        printf("sub error\n");
+        return -1;
+    }
+
+    a = 0xffff;
+    b = 0x1;
+    result = 0xfffe;
+    __asm
+    ("l.sub %0, %0, %1\n\t"
+     : "+r"(a)
+     : "r"(b)
+    );
+    if (a != result) {
+        printf("sub error\n");
+        return -1;
+    }
+
+    return 0;
+}