Renamed primary heap variables and partial cleanup m4a.s

include/gba/defines.h

@@ -8,6 +8,8 @@
 
 #define IWRAM_DATA __attribute__((section("iwram_data")))
 #define EWRAM_DATA __attribute__((section("ewram_data")))
+#define UNUSED __attribute__((unused))
+#define NAKED __attribute__((naked))
 
 #define ALIGNED(n) __attribute__((aligned(n)))
 
@@ -59,4 +61,4 @@
 
 #define WIN_RANGE(a, b) (((a) << 8) | (b))
 
-#endif // GUARD_GBA_DEFINES
+#endif // GUARD_GBA_DEFINES

include/memory.h

@@ -0,0 +1,56 @@
+#ifndef GUARD_MEMORY_H
+#define GUARD_MEMORY_H
+
+#define HEAP_SIZE 0x24000
+
+struct HeapSettings
+{
+    u8 *start;
+    u32 size;
+};
+
+struct HeapMemoryBlock {
+    u8 *start;
+    s32 size;
+    s32 allocatedSize;
+};
+
+struct HeapFreeListElement
+{
+    u32 unk_atb;
+    u32 atb;
+    u32 grp;
+    struct HeapMemoryBlock block;
+};
+
+struct HeapDescriptor
+{
+    u32 unk0;
+    u32 unk4;
+    struct HeapFreeListElement *freeList;
+    s32 freeCount;
+    u32 freeListLength;
+    u8 *start;
+    u32 size;
+};
+
+void InitHeap(void);
+
+void MemoryClear8(u8 *dest, s32 size);
+void MemoryClear16(u16 *dest, s32 size);
+void MemoryClear32(u32 *dest, s32 size);
+void MemoryFill8(u8 *dest, u8 value, s32 size);
+void MemoryFill16(u16 *dest, u16 value, s32 size);
+void MemoryFill32(u32 *dest, u32 value, s32 size);
+void MemoryCopy8(u8 *dest, u8 *src, s32 size);
+void MemoryCopy16(u16 *dest, u16 *src, s32 size);
+void MemoryCopy32(u32 *dest, u32 *src, s32 size);
+void MemoryCopy8(u8 *dest, u8 *src, s32 size);
+void MemoryCopy16(u16 *dest, u16 *src, s32 size);
+void MemoryCopy32(u32 *dest, u32 *src, s32 size);
+
+void InitHeapInternal(void);
+void DoInitHeap(struct HeapDescriptor *, struct HeapSettings *, struct HeapFreeListElement *, u32);
+void InitSubHeap(struct HeapDescriptor *, struct HeapFreeListElement *, u32);
+
+#endif // GUARD_MEMORY_H