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https://github.com/zeldaret/mm.git
synced 2026-05-23 15:01:32 -04:00
Anghelo Carvajal
34492a4386
* make segments for the systemheap and the framebuffers * define in the makefile * undefined syms * Make segments for the pre boot buffers too * Update spec Co-authored-by: Parker <20159000+jpburnett@users.noreply.github.com> * review * Update spec Co-authored-by: Parker <20159000+jpburnett@users.noreply.github.com> * Update Makefile Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com> * comments * comment * move comment about the hardcoded address to buffers.h * rewrite SYSTEM_HEAP_END_ADDR in terms of other symbols * Use `ALIGNED` on all the buffers * Rename SYSTEM_HEAP_END_ADDR to FRAMEBUFFERS_START_ADDR * Put ALIGNED at the right like the rest of the codebase * merge * gLoBuffer * gHiBuffer * Add a static assert to ensure the address of gHiBuffer haven't shifted without the user noticing * smol include cleanup --------- Co-authored-by: Parker <20159000+jpburnett@users.noreply.github.com> Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
#ifndef BUFFERS_H
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#define BUFFERS_H
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#include "libc/assert.h"
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#include "gfx.h"
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#include "macros.h"
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#include "stack.h"
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#include "z64save.h"
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typedef union {
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u16 framebufferHiRes[HIRES_BUFFER_HEIGHT][HIRES_BUFFER_WIDTH] ALIGNED(64);
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struct {
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u16 framebuffer[SCREEN_HEIGHT][SCREEN_WIDTH] ALIGNED(64);
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u8 skyboxBuffer[0x5A360] ALIGNED(16);
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};
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} BufferLow;
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// Equivalent to gLoBuffer.framebufferHiRes, but a different symbol is required to match
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extern u16 gFramebufferHiRes1[HIRES_BUFFER_WIDTH][HIRES_BUFFER_HEIGHT];
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extern BufferLow gLoBuffer;
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extern u8 gGfxSPTaskYieldBuffer[OS_YIELD_DATA_SIZE];
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extern STACK(gGfxSPTaskStack, 0x400);
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extern GfxPool gGfxPools[2];
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extern u8 gAudioHeap[0x138000];
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extern u8 gSystemHeap[];
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typedef union {
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u16 framebufferHiRes[HIRES_BUFFER_HEIGHT][HIRES_BUFFER_WIDTH] ALIGNED(64);
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struct {
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u8 pictoPhotoI8[PICTO_PHOTO_SIZE] ALIGNED(64);
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u8 D_80784600[0x56200] ALIGNED(64);
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u16 framebuffer[SCREEN_HEIGHT][SCREEN_WIDTH] ALIGNED(64);
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};
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} BufferHigh;
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// Equivalent to gHiBuffer.framebufferHiRes, but a different symbol is required to match
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extern u16 gFramebufferHiRes0[HIRES_BUFFER_HEIGHT][HIRES_BUFFER_WIDTH];
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extern BufferHigh gHiBuffer;
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#ifndef FRAMEBUFFERS_START_ADDR
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/**
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* The `framebuffers` segment is located at a fixed location in RAM and has a
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* fixed size.
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* Those framebuffers are placed at the end of the RAM space.
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* This address is calculated by doing `0x80800000 - (size of framebuffers)`,
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* where 0x80800000 is the end of the Expansion Pak address range.
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* In the vanilla game this value expands to `0x80780000`.
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*
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* Since the start of the `framebuffers` segment is the end of the not-fixed
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* available RAM, then the `system_heap` covers all the remaining RAM that is
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* not used by the non-relocatable code/data (i.e. `boot`, `code`, and other
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* buffers) up to the start of the `framebuffers` segmemt.
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* @see `Main`
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*/
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#define FRAMEBUFFERS_START_ADDR (PHYS_TO_K0(0x800000) - sizeof(BufferHigh))
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static_assert(FRAMEBUFFERS_START_ADDR == 0x80780000, "The expected address of gHiBuffer shifted. Please update said address in buffers.h and in the spec file.");
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#endif
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#endif
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