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Prepare for supporting LBAs in persitent code

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jaby
2023-01-25 20:46:26 +01:00
parent b24a9085e1
commit 3851cecd9b
6 changed files with 44 additions and 23 deletions
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16
include/PSX/AutoLBA/auto_lba.hpp Normal file
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@@ -0,0 +1,16 @@
#ifndef __JABYENGINE_AUTO_LBA_HPP__
#define __JABYENGINE_AUTO_LBA_HPP__
#include "../../stdint.h"
namespace JabyEngine {
#define __jabyengine_start_lba_request
#define __jabyengine_request_lba_for(name, file) name
#define __jabyengine_end_lba_request EndOfRequest
struct __attribute__((packed)) AutoLBAEntry {
uint16_t lba;
uint16_t size_words;
};
}
#endif //!__JABYENGINE_AUTO_LBA_HPP__

9
include/PSX/AutoLBA/auto_lba_declaration.hpp Normal file
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@@ -0,0 +1,9 @@
#ifndef __JABYENGINE_AUTO_LBA_DECLARATION_HPP__
#define __JABYENGINE_AUTO_LBA_DECLARATION_HPP__
extern const JabyEngine::AutoLBAEntry overlay_lba[];
#define __declare_lba_header(enum_struct) \
[[gnu::used]] \
const JabyEngine::AutoLBAEntry __section(".header.lbas") overlay_lba[static_cast<int>(enum_struct::EndOfRequest)] = {0}
#endif //!__JABYENGINE_AUTO_LBA_DECLARATION_HPP__

8
include/PSX/Overlay/overlay.hpp
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@@ -1,6 +1,6 @@
#ifndef __JABYENGINE_OVERLAY__HPP__
#define __JABYENGINE_OVERLAY__HPP__
#include "../../stdint.h"
#include "../AutoLBA/auto_lba.hpp"
namespace JabyEngine {
struct __attribute__((packed)) OverlayHeader {
@@ -8,10 +8,6 @@ namespace JabyEngine {
uint16_t lba_size; //< The size of the OverlayLBA section
};
// Maybe encode attributes like "isLZ4" into size parameter
struct __attribute__((packed)) OverlayLBA {
uint16_t lba;
uint16_t size_words;
};
typedef AutoLBAEntry OverlayLBA;
}
#endif //!__JABYENGINE_OVERLAY__HPP__

7
include/PSX/Overlay/overlay_declaration.hpp
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@@ -3,12 +3,11 @@
// No include here because this header should be included in a namespace and we don't want multiple namespace definitions of OverlayHeader and OverlayLBA
#include "../AutoLBA/auto_lba_declaration.hpp"
extern const JabyEngine::OverlayHeader overlay_header;
extern const JabyEngine::OverlayLBA overlay_lba[];
#define __declare_overlay_header(function, enum_struct) \
__declare_lba_header(enum_struct); \
[[gnu::used]] \
const JabyEngine::OverlayHeader __section(".header") overlay_header = {.execute = &function, .lba_size = static_cast<uint16_t>(enum_struct::EndOfRequest)}; \
[[gnu::used]] \
const JabyEngine::OverlayLBA __section(".header.lbas") overlay_lba[static_cast<int>(enum_struct::EndOfRequest)] = {0}
const JabyEngine::OverlayHeader __section(".header") overlay_header = {.execute = &function, .lba_size = static_cast<uint16_t>(enum_struct::EndOfRequest)};
#endif //!__JABYENGINE_OVERLAY_DECLARATION__HPP__

8
include/PSX/Overlay/overlay_lba.hpp
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@@ -1,8 +0,0 @@
#ifndef __JABYENGINE_OVERLAY_LBA__HPP__
#define __JABYENGINE_OVERLAY_LBA__HPP__
#define __jabyengine_start_lba_request
#define __jabyengine_request_lba_for(name, file) name
#define __jabyengine_end_lba_request EndOfRequest
#endif //!__JABYENGINE_OVERLAY_LBA__HPP__