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start of 3DS memory map

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This commit is contained in:
ShizZy 2013-09-05 23:04:04 -04:00
parent d708e2d68a
commit 62d873da3e
5 changed files with 80 additions and 16 deletions
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2
src/common/src/common_funcs.h
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@ -22,6 +22,8 @@ template<> struct CompileTimeAssert<true> {};
#define b32(x) (b16(x) | (b16(x) >>16) )
#define ROUND_UP_POW2(x) (b32(x - 1) + 1)
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
#if defined __GNUC__ && !defined __SSSE3__ && !defined _M_GENERIC
#include <emmintrin.h>
static __inline __m128i __attribute__((__always_inline__))

10
src/common/src/mem_arena.cpp
View file

@ -163,14 +163,6 @@ u8* MemArena::Find4GBBase()
}
// yeah, this could also be done in like two bitwise ops...
#define SKIP(a_flags, b_flags) \
if (!(a_flags & MV_WII_ONLY) && (b_flags & MV_WII_ONLY)) \
continue; \
if (!(a_flags & MV_FAKE_VMEM) && (b_flags & MV_FAKE_VMEM)) \
continue; \
static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32 flags, MemArena *arena) {
// OK, we know where to find free space. Now grab it!
// We just mimic the popular BAT setup.
@ -189,7 +181,6 @@ static bool Memory_TryBase(u8 *base, const MemoryView *views, int num_views, u32
int i;
for (i = 0; i < num_views; i++)
{
SKIP(flags, views[i].flags);
if (views[i].flags & MV_MIRROR_PREVIOUS) {
position = last_position;
} else {
@ -230,7 +221,6 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
for (int i = 0; i < num_views; i++)
{
SKIP(flags, views[i].flags);
if ((views[i].flags & MV_MIRROR_PREVIOUS) == 0)
total_mem += views[i].size;
}

3
src/common/src/mem_arena.h
View file

@ -37,8 +37,7 @@ private:
enum {
MV_MIRROR_PREVIOUS = 1,
MV_FAKE_VMEM = 2,
MV_WII_ONLY = 4,
MV_IS_PRIMARY_RAM = 0x100,
};
struct MemoryView