Alpha architecture emulation core.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2597 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 125 insertions, 0 deletions

diff --git a/target-alpha/op_mem.h b/target-alpha/op_mem.h
new file mode 100644
index 000000000..9f017a2af
--- /dev/null
+++ b/target-alpha/op_mem.h
@@ -0,0 +1,125 @@
+/*
+ *  Alpha emulation cpu micro-operations for memory accesses for qemu.
+ * 
+ *  Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#define DEBUG_MEM_ACCESSES
+#if defined (DEBUG_MEM_ACCESSES)
+void helper_print_mem_EA (target_ulong EA);
+#define print_mem_EA(EA) do { helper_print_mem_EA(EA); } while (0)
+#else
+#define print_mem_EA(EA) do { } while (0)
+#endif
+
+static inline uint32_t glue(ldl_l, MEMSUFFIX) (target_ulong EA)
+{
+    env->lock = EA;
+
+    return glue(ldl, MEMSUFFIX)(EA);
+}
+
+static inline uint32_t glue(ldq_l, MEMSUFFIX) (target_ulong EA)
+{
+    env->lock = EA;
+
+    return glue(ldq, MEMSUFFIX)(EA);
+}
+
+static inline void glue(stl_c, MEMSUFFIX) (target_ulong EA, uint32_t data)
+{
+    if (EA == env->lock) {
+        glue(stl, MEMSUFFIX)(EA, data);
+        T0 = 0;
+    } else {
+        T0 = 1;
+    }
+    env->lock = -1;
+}
+
+static inline void glue(stq_c, MEMSUFFIX) (target_ulong EA, uint64_t data)
+{
+    if (EA == env->lock) {
+        glue(stq, MEMSUFFIX)(EA, data);
+        T0 = 0;
+    } else {
+        T0 = 1;
+    }
+    env->lock = -1;
+}
+
+#define ALPHA_LD_OP(name, op)                                                 \
+void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \
+{                                                                             \
+    print_mem_EA(T0);                                                         \
+    T1 = glue(op, MEMSUFFIX)(T0);                                             \
+    RETURN();                                                                 \
+}
+
+#define ALPHA_ST_OP(name, op)                                                 \
+void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \
+{                                                                             \
+    print_mem_EA(T0);                                                         \
+    glue(op, MEMSUFFIX)(T0, T1);                                              \
+    RETURN();                                                                 \
+}
+
+ALPHA_LD_OP(bu, ldub);
+ALPHA_ST_OP(b, stb);
+ALPHA_LD_OP(wu, lduw);
+ALPHA_ST_OP(w, stw);
+ALPHA_LD_OP(l, ldl);
+ALPHA_ST_OP(l, stl);
+ALPHA_LD_OP(q, ldq);
+ALPHA_ST_OP(q, stq);
+
+ALPHA_LD_OP(q_u, ldq);
+ALPHA_ST_OP(q_u, stq);
+
+ALPHA_LD_OP(l_l, ldl_l);
+ALPHA_LD_OP(q_l, ldq_l);
+ALPHA_ST_OP(l_c, stl_c);
+ALPHA_ST_OP(q_c, stq_c);
+
+#define ALPHA_LDF_OP(name, op)                                                \
+void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \
+{                                                                             \
+    print_mem_EA(T0);                                                         \
+    FT1 = glue(op, MEMSUFFIX)(T0);                                            \
+    RETURN();                                                                 \
+}
+
+#define ALPHA_STF_OP(name, op)                                                \
+void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \
+{                                                                             \
+    print_mem_EA(T0);                                                         \
+    glue(op, MEMSUFFIX)(T0, FT1);                                             \
+    RETURN();                                                                 \
+}
+
+ALPHA_LDF_OP(t, ldfq);
+ALPHA_STF_OP(t, stfq);
+ALPHA_LDF_OP(s, ldfl);
+ALPHA_STF_OP(s, stfl);
+
+/* VAX floating point */
+ALPHA_LDF_OP(f, helper_ldff);
+ALPHA_STF_OP(f, helper_stff);
+ALPHA_LDF_OP(g, helper_ldfg);
+ALPHA_STF_OP(g, helper_stfg);
+
+#undef MEMSUFFIX