From ecbb5ea1041d2894f5efb9317acd519c4fd81ad5 Mon Sep 17 00:00:00 2001 From: aurel32 Date: Fri, 10 Apr 2009 21:27:15 +0000 Subject: target-alpha: overflow condition for sublv and subqv The conditions to detect overflow in sub operations was wrong. This patch is necessary to boot Tru64. Signed-off-by: Tristan Gingold Signed-off-by: Aurelien Jarno git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7073 c046a42c-6fe2-441c-8c8c-71466251a162 --- tests/alpha/Makefile | 3 +++ tests/alpha/test-ovf.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 tests/alpha/test-ovf.c (limited to 'tests') diff --git a/tests/alpha/Makefile b/tests/alpha/Makefile index e4e23d2d08..2b1f03d048 100644 --- a/tests/alpha/Makefile +++ b/tests/alpha/Makefile @@ -23,6 +23,9 @@ test-cmov.o: test-cond.c test-cmov: test-cmov.o crt.o $(LINK) +test-ovf: test-ovf.o crt.o + $(LINK) + check: $(TESTS) for f in $(TESTS); do $(SIM) $$f || exit 1; done diff --git a/tests/alpha/test-ovf.c b/tests/alpha/test-ovf.c new file mode 100644 index 0000000000..01c80e7525 --- /dev/null +++ b/tests/alpha/test-ovf.c @@ -0,0 +1,29 @@ +static long test_subqv (long a, long b) +{ + long res; + + asm ("subq/v %1,%2,%0" + : "=r" (res) : "r" (a), "r" (b)); + return res; +} +static struct { + long (*func)(long, long); + long a; + long b; + long r; +} vectors[] = + { + {test_subqv, 0, 0x7d54000, 0xfffffffff82ac000L} + }; + +int main (void) +{ + int i; + + for (i = 0; i < sizeof (vectors)/sizeof(vectors[0]); i++) + if ((*vectors[i].func)(vectors[i].a, vectors[i].b) != vectors[i].r) { + write(1, "Failed\n", 7); + } + write(1, "OK\n", 3); + return 0; +} -- cgit v1.2.1