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51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
#ifndef _MEMMAP_H_
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#define _MEMMAP_H_
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struct MemoryMap {
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uintptr_t vaddr;
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size_t size;
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};
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// these are probably .bss symbols in memmap.c, but until I have more
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// of bss mapped, not 100% sure if they go in that file. TODO: Migrate
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extern struct MemoryMap gSegments[16];
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extern struct MemoryMap gFragments[240];
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/* MIPS Relocation Types */
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#define R_MIPS_32 2
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#define R_MIPS_26 4
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#define R_MIPS_HI16 5
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#define R_MIPS_LO16 6
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struct RelocTable {
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/* 0x00 */ u32 nRelocations;
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/* 0x04 */ u32 relocations[]; // variable size
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};
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struct Fragment {
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u32 ep1, ep2; // MIPS instructions to jump to the main function,
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// typically something like "j 0x8xx00020; nop"
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char str[8]; // "FRAGMENT"
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u32 entrypoint; // typically 0x20
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u32 relocOffset; // relocOffset
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u32 sizeInRom;
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u32 sizeInRam;
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char data[]; // variable size
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};
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void Memmap_SetSegmentMap(u32 id, uintptr_t vaddr, u32 size);
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uintptr_t Memmap_GetSegmentBaseVaddr(u32 id);
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uintptr_t Memmap_GetSegmentVaddr(u32 mask);
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u32 Memmap_GetSegmentVaddrMask(u32 i, uintptr_t addr);
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void Memmap_ClearSegmentMemmap(u32 id);
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void Memmap_SetSegments(Gfx** gfxDl);
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void Memmap_RelocateFragment(u32 id, struct Fragment* fragment);
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void Memmap_SetFragmentMap(u32 id, uintptr_t vaddr, u32 size);
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uintptr_t Memmap_GetFragmentBaseVaddr(u32 id);
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uintptr_t Memmap_GetFragmentVaddr(u32 mask);
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u32 Memmap_GetFragmentVaddrMask(u32 i, uintptr_t addr);
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void Memmap_ClearFragmentMemmap(u32 id);
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uintptr_t Memmap_GetLoadedFragmentVaddr(uintptr_t addr);
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#endif // _MEMMAP_H_
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