feat: Add initial Supervisor Mode Trap Handler

Implement the initial mechanism for handling traps and exceptions in Supervisor Mode.

Set up the stvec Control and Status Register (CSR) to direct all S-Mode Traps (Interrupts and Exceptions) to a unified assembly entry point.

Implemented assembly code for saving and restoring the Trap Context (register state).

Provides the foundational framework necessary for future Timer Interrupts and System Calls.

1 files changed, 2 insertions, 0 deletions

diff --git a/include/drivers/uart.h b/include/drivers/uart.h
index 8bf4560..4d00d94 100644
--- a/include/drivers/uart.h
+++ b/include/drivers/uart.h
@@ -1,7 +1,9 @@
 #pragma once
+typedef unsigned long long uint64_t;
 
 namespace Drivers {
     void uart_init();
     void uart_putc(char c);
     void uart_puts(const char* s);
+    void print_hex(uint64_t val);
 }
\ No newline at end of file