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CPU: Implement memory breakpoints/watchpoints

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This commit is contained in:
Stenzek
2024-02-27 23:56:35 +10:00
parent ef4389cea8
commit 71094a0e44
12 changed files with 466 additions and 134 deletions
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23
src/core/cpu_core.h
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@ -191,8 +191,17 @@ bool IsTraceEnabled();
void StartTrace();
void StopTrace();
// Breakpoint types - execute => breakpoint, read/write => watchpoints
enum class BreakpointType : u8
{
Execute,
Read,
Write,
Count
};
// Breakpoint callback - if the callback returns false, the breakpoint will be removed.
using BreakpointCallback = bool (*)(VirtualMemoryAddress address);
using BreakpointCallback = bool (*)(BreakpointType type, VirtualMemoryAddress pc, VirtualMemoryAddress memaddr);
struct Breakpoint
{
@ -200,6 +209,7 @@ struct Breakpoint
BreakpointCallback callback;
u32 number;
u32 hit_count;
BreakpointType type;
bool auto_clear;
bool enabled;
};
@ -207,12 +217,13 @@ struct Breakpoint
using BreakpointList = std::vector<Breakpoint>;
// Breakpoints
const char* GetBreakpointTypeName(BreakpointType type);
bool HasAnyBreakpoints();
bool HasBreakpointAtAddress(VirtualMemoryAddress address);
BreakpointList GetBreakpointList(bool include_auto_clear = false, bool include_callbacks = false);
bool AddBreakpoint(VirtualMemoryAddress address, bool auto_clear = false, bool enabled = true);
bool AddBreakpointWithCallback(VirtualMemoryAddress address, BreakpointCallback callback);
bool RemoveBreakpoint(VirtualMemoryAddress address);
bool HasBreakpointAtAddress(BreakpointType type, VirtualMemoryAddress address);
BreakpointList CopyBreakpointList(bool include_auto_clear = false, bool include_callbacks = false);
bool AddBreakpoint(BreakpointType type, VirtualMemoryAddress address, bool auto_clear = false, bool enabled = true);
bool AddBreakpointWithCallback(BreakpointType type, VirtualMemoryAddress address, BreakpointCallback callback);
bool RemoveBreakpoint(BreakpointType type, VirtualMemoryAddress address);
void ClearBreakpoints();
bool AddStepOverBreakpoint();
bool AddStepOutBreakpoint(u32 max_instructions_to_search = 1000);