Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 242 insertions, 0 deletions

diff --git a/qemu/target-i386/cc_helper_template.h b/qemu/target-i386/cc_helper_template.h
new file mode 100644
index 000000000..607311f19
--- /dev/null
+++ b/qemu/target-i386/cc_helper_template.h
@@ -0,0 +1,242 @@
+/*
+ *  x86 condition code helpers
+ *
+ *  Copyright (c) 2008 Fabrice Bellard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DATA_BITS (1 << (3 + SHIFT))
+
+#if DATA_BITS == 8
+#define SUFFIX b
+#define DATA_TYPE uint8_t
+#elif DATA_BITS == 16
+#define SUFFIX w
+#define DATA_TYPE uint16_t
+#elif DATA_BITS == 32
+#define SUFFIX l
+#define DATA_TYPE uint32_t
+#elif DATA_BITS == 64
+#define SUFFIX q
+#define DATA_TYPE uint64_t
+#else
+#error unhandled operand size
+#endif
+
+#define SIGN_MASK (((DATA_TYPE)1) << (DATA_BITS - 1))
+
+/* dynamic flags computation */
+
+static int glue(compute_all_add, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src2 = dst - src1;
+
+    cf = dst < src1;
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & CC_A;
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ dst), 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_add, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    return dst < src1;
+}
+
+static int glue(compute_all_adc, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1,
+                                         DATA_TYPE src3)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src2 = dst - src1 - src3;
+
+    cf = (src3 ? dst <= src1 : dst < src1);
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & 0x10;
+    zf = (dst == 0) << 6;
+    sf = lshift(dst, 8 - DATA_BITS) & 0x80;
+    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ dst), 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_adc, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1,
+                                       DATA_TYPE src3)
+{
+    return src3 ? dst <= src1 : dst < src1;
+}
+
+static int glue(compute_all_sub, SUFFIX)(DATA_TYPE dst, DATA_TYPE src2)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src1 = dst + src2;
+
+    cf = src1 < src2;
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & CC_A;
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = lshift((src1 ^ src2) & (src1 ^ dst), 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_sub, SUFFIX)(DATA_TYPE dst, DATA_TYPE src2)
+{
+    DATA_TYPE src1 = dst + src2;
+
+    return src1 < src2;
+}
+
+static int glue(compute_all_sbb, SUFFIX)(DATA_TYPE dst, DATA_TYPE src2,
+                                         DATA_TYPE src3)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src1 = dst + src2 + src3;
+
+    cf = (src3 ? src1 <= src2 : src1 < src2);
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & 0x10;
+    zf = (dst == 0) << 6;
+    sf = lshift(dst, 8 - DATA_BITS) & 0x80;
+    of = lshift((src1 ^ src2) & (src1 ^ dst), 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_sbb, SUFFIX)(DATA_TYPE dst, DATA_TYPE src2,
+                                       DATA_TYPE src3)
+{
+    DATA_TYPE src1 = dst + src2 + src3;
+
+    return (src3 ? src1 <= src2 : src1 < src2);
+}
+
+static int glue(compute_all_logic, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+
+    cf = 0;
+    pf = parity_table[(uint8_t)dst];
+    af = 0;
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = 0;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_all_inc, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src2;
+
+    cf = src1;
+    src1 = dst - 1;
+    src2 = 1;
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & CC_A;
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = (dst == SIGN_MASK) * CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_all_dec, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+    DATA_TYPE src2;
+
+    cf = src1;
+    src1 = dst + 1;
+    src2 = 1;
+    pf = parity_table[(uint8_t)dst];
+    af = (dst ^ src1 ^ src2) & CC_A;
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = (dst == SIGN_MASK - 1) * CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_all_shl, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+
+    cf = (src1 >> (DATA_BITS - 1)) & CC_C;
+    pf = parity_table[(uint8_t)dst];
+    af = 0; /* undefined */
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    /* of is defined iff shift count == 1 */
+    of = lshift(src1 ^ dst, 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_shl, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    return (src1 >> (DATA_BITS - 1)) & CC_C;
+}
+
+static int glue(compute_all_sar, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+
+    cf = src1 & 1;
+    pf = parity_table[(uint8_t)dst];
+    af = 0; /* undefined */
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    /* of is defined iff shift count == 1 */
+    of = lshift(src1 ^ dst, 12 - DATA_BITS) & CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and
+   CF are modified and it is slower to do that.  Note as well that we
+   don't truncate SRC1 for computing carry to DATA_TYPE.  */
+static int glue(compute_all_mul, SUFFIX)(DATA_TYPE dst, target_long src1)
+{
+    int cf, pf, af, zf, sf, of;
+
+    cf = (src1 != 0);
+    pf = parity_table[(uint8_t)dst];
+    af = 0; /* undefined */
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = cf * CC_O;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_all_bmilg, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    int cf, pf, af, zf, sf, of;
+
+    cf = (src1 == 0);
+    pf = 0; /* undefined */
+    af = 0; /* undefined */
+    zf = (dst == 0) * CC_Z;
+    sf = lshift(dst, 8 - DATA_BITS) & CC_S;
+    of = 0;
+    return cf | pf | af | zf | sf | of;
+}
+
+static int glue(compute_c_bmilg, SUFFIX)(DATA_TYPE dst, DATA_TYPE src1)
+{
+    return src1 == 0;
+}
+
+#undef DATA_BITS
+#undef SIGN_MASK
+#undef DATA_TYPE
+#undef DATA_MASK
+#undef SUFFIX