arm9/source/devices/memory.h


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#ifndef MEMORY_H_
    #define MEMORY_H_

    #define HEAP_SIZE (4096*3)

    typedef struct {
        u8 id;           // Unique non-zero identifier for this memory device.

        u16 offset1;     // Bedrock offset value for head 1
        u8 page1;        // Bedrock address value for head 1
        u8 byte1;        // Bedrock address value for head 1
        u16 offset2;     // Bedrock offset value for head 2
        u8 page2;        // Bedrock address value for head 2
        u8 byte2;        // Bedrock address value for head 2

        u16 count_write;  // write cache for page count
        u16 count;        // number of pages allocated for this bedrock
        u16 copy_write;   // write cache for page copy length

        u8 *point1;     // pointer to current page for head 1
        u8 *point2;     // pointer to current page for head 2

        u8* cache1[256];
        u8* cache2[256];
    } MemoryDevice ;

    u8 mem_read1(MemoryDevice *mem);
    u8 mem_read2(MemoryDevice *mem);
    void mem_write1(MemoryDevice *mem, u8 value);
    void mem_write2(MemoryDevice *mem, u8 value);

    void mem_load_cache1(MemoryDevice *mem);
    void mem_load_cache2(MemoryDevice *mem);
    void mem_get_page1(MemoryDevice *mem);
    void mem_get_page2(MemoryDevice *mem);


    void mem_allocate(MemoryDevice *mem);
    void mem_do_copy(MemoryDevice *mem);


#endif