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Bus: Added RAM, RAM_SIZE and RAM_MASK exports for external debugger usage 

Useful e.g. for Cheat Engine.
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Silent 2022-07-31 10:43:26 +02:00
parent 571a773b29
commit c98e0bd096
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1 changed files with 23 additions and 0 deletions
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23
src/core/bus.cpp
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@ -78,6 +78,21 @@ u32 g_ram_size = 0;
u32 g_ram_mask = 0;
u8 g_bios[BIOS_SIZE]{}; // 512K BIOS ROM
// Exports for external debugger access
namespace Exports {
extern "C" {
#ifdef _WIN32
_declspec(dllexport) uintptr_t RAM;
_declspec(dllexport) u32 RAM_SIZE, RAM_MASK;
#else
__attribute__((visibility("default"), used)) uintptr_t RAM;
__attribute__((visibility("default"), used)) u32 RAM_SIZE, RAM_MASK;
#endif
}
} // namespace Exports
static std::array<TickCount, 3> m_exp1_access_time = {};
static std::array<TickCount, 3> m_exp2_access_time = {};
static std::array<TickCount, 3> m_bios_access_time = {};
@ -293,6 +308,10 @@ bool AllocateMemory(bool enable_8mb_ram)
g_ram_size = ram_size;
m_ram_code_page_count = enable_8mb_ram ? RAM_8MB_CODE_PAGE_COUNT : RAM_2MB_CODE_PAGE_COUNT;
Exports::RAM = reinterpret_cast<uintptr_t>(g_ram);
Exports::RAM_SIZE = g_ram_size;
Exports::RAM_MASK = g_ram_mask;
Log_InfoPrintf("RAM is %u bytes at %p", g_ram_size, g_ram);
return true;
}
@ -305,6 +324,10 @@ void ReleaseMemory()
g_ram = nullptr;
g_ram_mask = 0;
g_ram_size = 0;
Exports::RAM = 0;
Exports::RAM_SIZE = 0;
Exports::RAM_MASK = 0;
}
m_memory_arena.Destroy();