From 34dc0a9b0750321d9556ac2e9c57007526096caf Mon Sep 17 00:00:00 2001
From: bunnei <ericbunnie@gmail.com>
Date: Tue, 6 May 2014 23:29:39 -0400
Subject: added config_mem module for HLE of firmware configuration memory
 settings

---
 src/core/hle/config_mem.cpp | 70 +++++++++++++++++++++++++++++++++++++++++++++
 src/core/hle/config_mem.h   | 21 ++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 src/core/hle/config_mem.cpp
 create mode 100644 src/core/hle/config_mem.h

(limited to 'src/core/hle')

diff --git a/src/core/hle/config_mem.cpp b/src/core/hle/config_mem.cpp
new file mode 100644
index 000000000..48aa878cc
--- /dev/null
+++ b/src/core/hle/config_mem.cpp
@@ -0,0 +1,70 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#include "common/common_types.h"
+#include "common/log.h"
+
+#include "core/hle/config_mem.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace ConfigMem {
+
+enum {
+    KERNEL_VERSIONREVISION  = 0x1FF80001,
+    KERNEL_VERSIONMINOR     = 0x1FF80002,
+    KERNEL_VERSIONMAJOR     = 0x1FF80003,
+    UPDATEFLAG              = 0x1FF80004,
+    NSTID                   = 0x1FF80008,
+    SYSCOREVER              = 0x1FF80010,
+    UNITINFO                = 0x1FF80014,
+    KERNEL_CTRSDKVERSION    = 0x1FF80018,
+    APPMEMTYPE              = 0x1FF80030,
+    APPMEMALLOC             = 0x1FF80040,
+    FIRM_VERSIONREVISION    = 0x1FF80061,
+    FIRM_VERSIONMINOR       = 0x1FF80062,
+    FIRM_VERSIONMAJOR       = 0x1FF80063,
+    FIRM_SYSCOREVER         = 0x1FF80064,
+    FIRM_CTRSDKVERSION      = 0x1FF80068,
+};
+
+template <typename T>
+inline void Read(T &var, const u32 addr) {
+    switch (addr) {
+
+    // Bit 0 set for Retail
+    case UNITINFO:
+        var = 0x00000001;
+        break;
+
+    // Set app memory size to 64MB?
+    case APPMEMALLOC:
+        var = 0x04000000;
+        break;
+
+    // Unknown - normally set to: 0x08000000 - (APPMEMALLOC + *0x1FF80048)
+    // (Total FCRAM size - APPMEMALLOC - *0x1FF80048)
+    case 0x1FF80044:
+        var = 0x08000000 - (0x04000000 + 0x1400000);
+        break;
+
+    // Unknown - normally set to: 0x1400000 (20MB)
+    case 0x1FF80048:
+        var = 0x1400000;
+        break;
+
+    default:
+        ERROR_LOG(HLE, "unknown ConfigMem::Read%d @ 0x%08X", sizeof(var) * 8, addr);
+    }
+}
+
+// Explicitly instantiate template functions because we aren't defining this in the header:
+
+template void Read<u64>(u64 &var, const u32 addr);
+template void Read<u32>(u32 &var, const u32 addr);
+template void Read<u16>(u16 &var, const u32 addr);
+template void Read<u8>(u8 &var, const u32 addr);
+
+
+} // namespace
diff --git a/src/core/hle/config_mem.h b/src/core/hle/config_mem.h
new file mode 100644
index 000000000..da396a3e6
--- /dev/null
+++ b/src/core/hle/config_mem.h
@@ -0,0 +1,21 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.  
+
+#pragma once
+
+// Configuration memory stores various hardware/kernel configuration settings. This memory page is 
+// read-only for ARM11 processes. I'm guessing this would normally be written to by the firmware/
+// bootrom. Because we're not emulating this, and essentially just "stubbing" the functionality, I'm
+// putting this as a subset of HLE for now.
+
+#include "common/common_types.h"
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace ConfigMem {
+
+template <typename T>
+inline void Read(T &var, const u32 addr);
+
+} // namespace
-- 
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