To handle faults such as data aborts, alignment faults, or supervisor
calls, the CPU must transition from the guest's context into a
privileged exception handler. This patch emulates the hardware sequence
for this entry process.
1. The vcpu_state_t struct includes the essential EL1 system registers
required for exception handling (ELR_EL1, SPSR_EL1, ESR_EL1, FAR_EL1,
and VBAR_EL1).
2. A new function, take_synchronous_exception(), is introduced. It
models the requirements for entering an exception targeting EL1:
- Saves the return address (PC) into ELR_EL1.
- Saves the current proccess state (PSTATE) into SPSR_EL1.
- Contructs the Exception Syndrome Register (ESR_EL1) from the
provided Exception Class and ISS.
- Saves the faulting address to FAR_EL1 for data aborts.
- Updates the live PSTATE to a safe state for the handler.
This implementation is intentially partial. The final step of updating the
PC to jump to a handler in the guest's vector table (using VBAR_EL1) is
stubbed out. The vector table will contain assembly instructions so a
functional instruction decoder is required to fully complete the
exception handler.
Signed-off-by: Ronald Caesar <github43132@proton.me>
This is because the source code is objected oriented which is not cpu cache
friendly, making the program slower than it has to be. Yuzu's entire
codebase is written in a objected oriented way and I wonder how much faster
it could if they had use DoD principles from the very beginning.
That's why I want to instill DoD fundamentals early on so this won't be a
problem going forward.
Signed-off-by: Ronald Caesar <github43132@proton.me>
- Create modular GUI architecture with base Panel class
- Implement GUIManager to handle window lifecycle and panel management
- Add Window wrapper class for SDL3/OpenGL context management
- Create specialized panels:
- ConsolePanel: Colored log output with timestamps
- CPUPanel: CPU debugging with tabs for registers, memory, and disassembly
- PerformancePanel: Real-time FPS and frame time monitoring
- Apply modern dark theme with purple accents
- Add comprehensive menu bar (File, Emulation, View, Tools, Help)
- Update CMakeLists.txt to include new gui/ directory structure
- Refactor main.cpp to use the new GUI system
- Cutom theme on switch colors
