#op, op0, op1);\
}
+#define TEST_CMPXCHG(op, size, opconst, eax)\
+{\
+ int op0, op1;\
+ op0 = 0x12345678;\
+ op1 = 0xfbca7654;\
+ asm(#op " %" size "0, %" size "1" \
+ : "=q" (op0), opconst (op1) \
+ : "0" (op0), "1" (op1), "a" (eax));\
+ printf("%-10s EAX=%08x A=%08x C=%08x\n",\
+ #op, eax, op0, op1);\
+}
+
void test_xchg(void)
{
TEST_XCHG(xchgl, "", "=q");
TEST_XCHG(xaddl, "", "=m");
TEST_XCHG(xaddw, "w", "=m");
TEST_XCHG(xaddb, "b", "=m");
+
+ TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfbca7654);
+ TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfbca7654);
+ TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfbca7654);
+
+ TEST_CMPXCHG(cmpxchgl, "", "=q", 0xfffefdfc);
+ TEST_CMPXCHG(cmpxchgw, "w", "=q", 0xfffefdfc);
+ TEST_CMPXCHG(cmpxchgb, "b", "=q", 0xfffefdfc);
+
+ TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfbca7654);
+ TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfbca7654);
+ TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfbca7654);
+
+ TEST_CMPXCHG(cmpxchgl, "", "=m", 0xfffefdfc);
+ TEST_CMPXCHG(cmpxchgw, "w", "=m", 0xfffefdfc);
+ TEST_CMPXCHG(cmpxchgb, "b", "=m", 0xfffefdfc);
}
static void *call_end __init_call = NULL;