Initial Commit

UnleashedRecomp/cpu/code_cache.cpp

@@ -0,0 +1,37 @@
+#include <stdafx.h>
+#include "code_cache.h"
+#include "ppc_context.h"
+
+CodeCache::CodeCache()
+{
+    bucket = (char*)VirtualAlloc(nullptr, 0x200000000, MEM_RESERVE, PAGE_READWRITE);
+    assert(bucket);
+}
+
+CodeCache::~CodeCache()
+{
+    VirtualFree(bucket, 0, MEM_RELEASE);
+}
+
+void CodeCache::Init()
+{
+    for (size_t i = 0; PPCFuncMappings[i].guest != 0; i++)
+    {
+        if (PPCFuncMappings[i].host != nullptr)
+        {
+            VirtualAlloc(bucket + PPCFuncMappings[i].guest * 2, sizeof(void*), MEM_COMMIT, PAGE_READWRITE);
+            *(void**)(bucket + PPCFuncMappings[i].guest * 2) = PPCFuncMappings[i].host;
+        }
+    }
+}
+
+void CodeCache::Insert(uint32_t guest, const void* host)
+{
+    VirtualAlloc(bucket + static_cast<uint64_t>(guest) * 2, sizeof(void*), MEM_COMMIT, PAGE_READWRITE);
+    *reinterpret_cast<const void**>(bucket + static_cast<uint64_t>(guest) * 2) = host;
+}
+
+void* CodeCache::Find(uint32_t guest) const
+{
+    return *reinterpret_cast<void**>(bucket + static_cast<uint64_t>(guest) * 2);
+}