From 2403f367b12ef8c7b13e9c80c5c3af422b190817 Mon Sep 17 00:00:00 2001
From: Ben Vanik <ben.vanik@gmail.com>
Date: Sat, 8 Feb 2014 22:00:21 -0800
Subject: [PATCH] MachineInfo

---
 src/alloy/backend/backend.cc         |  1 +
 src/alloy/backend/backend.h          |  3 +++
 src/alloy/backend/ivm/ivm_backend.cc | 14 ++++++++++
 src/alloy/backend/machine_info.h     | 39 ++++++++++++++++++++++++++++
 src/alloy/backend/sources.gypi       |  1 +
 src/alloy/backend/x64/x64_backend.cc | 14 ++++++++++
 6 files changed, 72 insertions(+)
 create mode 100644 src/alloy/backend/machine_info.h

diff --git a/src/alloy/backend/backend.cc b/src/alloy/backend/backend.cc
index 2f6531fb5..d49fb713e 100644
--- a/src/alloy/backend/backend.cc
+++ b/src/alloy/backend/backend.cc
@@ -18,6 +18,7 @@ using namespace alloy::runtime;
 
 Backend::Backend(Runtime* runtime) :
     runtime_(runtime) {
+  xe_zero_struct(&machine_info_, sizeof(machine_info_));
 }
 
 Backend::~Backend() {
diff --git a/src/alloy/backend/backend.h b/src/alloy/backend/backend.h
index 885844d3f..b6c2c431e 100644
--- a/src/alloy/backend/backend.h
+++ b/src/alloy/backend/backend.h
@@ -11,6 +11,7 @@
 #define ALLOY_BACKEND_BACKEND_H_
 
 #include <alloy/core.h>
+#include <alloy/backend/machine_info.h>
 
 
 namespace alloy { namespace runtime { class Runtime; } }
@@ -27,6 +28,7 @@ public:
   virtual ~Backend();
 
   runtime::Runtime* runtime() const { return runtime_; }
+  const MachineInfo* machine_info() const { return &machine_info_; }
 
   virtual int Initialize();
 
@@ -37,6 +39,7 @@ public:
 
 protected:
   runtime::Runtime* runtime_;
+  MachineInfo machine_info_;
 };
 
 
diff --git a/src/alloy/backend/ivm/ivm_backend.cc b/src/alloy/backend/ivm/ivm_backend.cc
index bb2a42f67..6bd51037f 100644
--- a/src/alloy/backend/ivm/ivm_backend.cc
+++ b/src/alloy/backend/ivm/ivm_backend.cc
@@ -34,6 +34,20 @@ int IVMBackend::Initialize() {
     return result;
   }
 
+  machine_info_.register_sets[0] = {
+    0,
+    "gpr",
+    MachineInfo::RegisterSet::INT_TYPES,
+    10,
+  };
+  machine_info_.register_sets[1] = {
+    1,
+    "vec",
+    MachineInfo::RegisterSet::FLOAT_TYPES |
+    MachineInfo::RegisterSet::VEC_TYPES,
+    10,
+  };
+
   alloy::tracing::WriteEvent(EventType::Init({
   }));
 
diff --git a/src/alloy/backend/machine_info.h b/src/alloy/backend/machine_info.h
new file mode 100644
index 000000000..2aa7add22
--- /dev/null
+++ b/src/alloy/backend/machine_info.h
@@ -0,0 +1,39 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef ALLOY_BACKEND_MACHINE_INFO_H_
+#define ALLOY_BACKEND_MACHINE_INFO_H_
+
+#include <alloy/core.h>
+
+
+namespace alloy {
+namespace backend {
+
+
+struct MachineInfo {
+  struct RegisterSet {
+    enum Types {
+      INT_TYPES = (1 << 1),
+      FLOAT_TYPES = (1 << 2),
+      VEC_TYPES = (1 << 3),
+    };
+    uint8_t id;
+    char name[4];
+    uint32_t types;
+    uint32_t count;
+  } register_sets[8];
+};
+
+
+}  // namespace backend
+}  // namespace alloy
+
+
+#endif  // ALLOY_BACKEND_MACHINE_INFO_H_
diff --git a/src/alloy/backend/sources.gypi b/src/alloy/backend/sources.gypi
index 154cd75ad..41419ac7a 100644
--- a/src/alloy/backend/sources.gypi
+++ b/src/alloy/backend/sources.gypi
@@ -5,6 +5,7 @@
     'assembler.h',
     'backend.cc',
     'backend.h',
+    'machine_info.h',
     'tracing.h',
   ],
 
diff --git a/src/alloy/backend/x64/x64_backend.cc b/src/alloy/backend/x64/x64_backend.cc
index 031dc6bda..8c1968571 100644
--- a/src/alloy/backend/x64/x64_backend.cc
+++ b/src/alloy/backend/x64/x64_backend.cc
@@ -41,6 +41,20 @@ int X64Backend::Initialize() {
     return result;
   }
 
+  machine_info_.register_sets[0] = {
+    0,
+    "gpr",
+    MachineInfo::RegisterSet::INT_TYPES,
+    10,
+  };
+  machine_info_.register_sets[1] = {
+    1,
+    "xmm",
+    MachineInfo::RegisterSet::FLOAT_TYPES |
+    MachineInfo::RegisterSet::VEC_TYPES,
+    10,
+  };
+
   code_cache_ = new X64CodeCache();
   result = code_cache_->Initialize();
   if (result) {