Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
---
x86/emulator.c | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/x86/emulator.c b/x86/emulator.c
index 0486d38..967f2a4 100644
--- a/x86/emulator.c
+++ b/x86/emulator.c
@@ -594,6 +594,40 @@ static void test_div(long *mem)
a == 0x1ffffffb1b963b33ul && d == 0x273ba4384ede2ul && !ex);
}
+typedef unsigned __attribute__((vector_size(16))) sse128;
+
+typedef union {
+ sse128 sse;
+ unsigned u[4];
+} sse_union;
+
+static bool sseeq(sse_union *v1, sse_union *v2)
+{
+ bool ok = true;
+ int i;
+
+ for (i = 0; i < 4; ++i) {
+ ok &= v1->u[i] == v2->u[i];
+ }
+
+ return ok;
+}
+
+static void test_sse(sse_union *mem)
+{
+ sse_union v;
+
+ write_cr0(read_cr0() & ~6); /* EM, TS */
+ write_cr4(read_cr4() | 0x200); /* OSFXSR */
+ v.u[0] = 1; v.u[1] = 2; v.u[2] = 3; v.u[3] = 4;
+ asm("movdqu %1, %0" : "=m"(*mem) : "x"(v.sse));
+ report("movdqu (read)", sseeq(&v, mem));
+ mem->u[0] = 5; mem->u[1] = 6; mem->u[2] = 7; mem->u[3] = 8;
+ asm("movdqu %1, %0" : "=x"(v.sse) : "m"(*mem));
+ report("movdqu (write)", sseeq(mem, &v));
+}
+
+
int main()
{
void *mem;
@@ -632,6 +666,7 @@ int main()
test_bsfbsr(mem);
test_imul(mem);
test_div(mem);
+ test_sse(mem);
printf("\nSUMMARY: %d tests, %d failures\n", tests, fails);
return fails ? 1 : 0;
--
1.7.1
--
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