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Diffstat (limited to 'qemu/tests/tcg/openrisc/test_addc.c')
-rw-r--r--qemu/tests/tcg/openrisc/test_addc.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/qemu/tests/tcg/openrisc/test_addc.c b/qemu/tests/tcg/openrisc/test_addc.c
new file mode 100644
index 000000000..a8f756a69
--- /dev/null
+++ b/qemu/tests/tcg/openrisc/test_addc.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+
+int main(void)
+{
+ int a, b, c;
+ int result;
+
+ b = 0x01;
+ c = 0xffffffff;
+ result = 0;
+ __asm
+ ("l.add r1, r1, r0\n\t" /* clear carry */
+ "l.addc %0, %1, %2\n\t"
+ : "=r"(a)
+ : "r"(b), "r"(c)
+ );
+ if (a != result) {
+ printf("first addc error\n");
+ return -1;
+ }
+
+ b = 0x01;
+ c = 0xffffffff;
+ result = 0x80000001;
+ __asm
+ ("l.add r1, r1, r0\n\t" /* clear carry */
+ "l.addc %0, %1, %2\n\t"
+ "l.movhi %2, 0x7fff\n\t"
+ "l.ori %2, %2, 0xffff\n\t"
+ "l.addc %0, %1, %2\n\t"
+ : "=r"(a)
+ : "r"(b), "r"(c)
+ );
+ if (a != result) {
+ printf("addc error\n");
+ return -1;
+ }
+
+ return 0;
+}