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https://github.com/RetroDECK/Duckstation.git
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b6f871d2b9
* CPU/Recompiler: Use rel32 call where possible for no-args * JitCodeBuffer: Support using preallocated buffer * CPU/Recompiler/AArch64: Use bl instead of blr for short branches * CPU/CodeCache: Allocate recompiler buffer in program space This means we don't need 64-bit moves for every call out of the recompiler. * GTE: Don't store as u16 and load as u32 * CPU/Recompiler: Add methods to emit global load/stores * GTE: Convert class to namespace * CPU/Recompiler: Call GTE functions directly * Settings: Turn into a global variable * GPU: Replace local pointers with global * InterruptController: Turn into a global pointer * System: Replace local pointers with global * Timers: Turn into a global instance * DMA: Turn into a global instance * SPU: Turn into a global instance * CDROM: Turn into a global instance * MDEC: Turn into a global instance * Pad: Turn into a global instance * SIO: Turn into a global instance * CDROM: Move audio FIFO to the heap * CPU/Recompiler: Drop ASMFunctions No longer needed since we have code in the same 4GB window. * CPUCodeCache: Turn class into namespace * Bus: Local pointer -> global pointers * CPU: Turn class into namespace * Bus: Turn into namespace * GTE: Store registers in CPU state struct Allows relative addressing on ARM. * CPU/Recompiler: Align code storage to page size * CPU/Recompiler: Fix relative branches on A64 * HostInterface: Local references to global * System: Turn into a namespace, move events out * Add guard pages * Android: Fix build
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
#pragma once
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#include "types.h"
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class JitCodeBuffer
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{
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public:
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JitCodeBuffer();
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JitCodeBuffer(u32 size, u32 far_code_size);
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JitCodeBuffer(void* buffer, u32 size, u32 far_code_size, u32 guard_size);
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~JitCodeBuffer();
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bool Allocate(u32 size = 64 * 1024 * 1024, u32 far_code_size = 0);
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bool Initialize(void* buffer, u32 size, u32 far_code_size = 0, u32 guard_size = 0);
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void Destroy();
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void Reset();
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u8* GetFreeCodePointer() const { return m_free_code_ptr; }
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u32 GetFreeCodeSpace() const { return static_cast<u32>(m_code_size - m_code_used); }
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void CommitCode(u32 length);
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u8* GetFreeFarCodePointer() const { return m_free_far_code_ptr; }
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u32 GetFreeFarCodeSpace() const { return static_cast<u32>(m_far_code_size - m_far_code_used); }
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void CommitFarCode(u32 length);
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/// Adjusts the free code pointer to the specified alignment, padding with bytes.
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/// Assumes alignment is a power-of-two.
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void Align(u32 alignment, u8 padding_value);
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/// Flushes the instruction cache on the host for the specified range.
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static void FlushInstructionCache(void* address, u32 size);
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private:
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u8* m_code_ptr = nullptr;
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u8* m_free_code_ptr = nullptr;
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u32 m_code_size = 0;
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u32 m_code_used = 0;
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u8* m_far_code_ptr = nullptr;
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u8* m_free_far_code_ptr = nullptr;
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u32 m_far_code_size = 0;
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u32 m_far_code_used = 0;
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u32 m_total_size = 0;
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u32 m_guard_size = 0;
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u32 m_old_protection = 0;
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bool m_owns_buffer = false;
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};
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