[MODERN FEATURES] SSE

kernel/include/registers.h

@@ -1,8 +1,16 @@
 #pragma once
 
+#ifndef __ASSEMBLER__
 void load_idt(void *);
 uint64_t read_cr0();
 uint64_t read_cr2();
 uint64_t read_cr3();
 void write_cr3(uint64_t);
 uint64_t read_cr4();
+#endif
+
+#define CR0_MP (1<<1)
+#define CR0_EM (1<<2)
+
+#define CR4_OSFXSR (1<<9)
+#define CR4_OSXMMEXCPT (1<<10)

kernel/include/sse.h

@@ -0,0 +1,6 @@
+#pragma once
+
+void sse_init();
+
+void sse_save(uint8_t *addr);
+void sse_restore(uint8_t *addr);

kernel/include/thread.h

@@ -11,6 +11,7 @@ typedef struct thread_st
   uint64_t stack_pointer; // Top of the kernel stack for thread
   uint64_t tid;
   uint64_t state;
+  uint8_t sse_registers[512];
   process_t *process;
   LIST(struct thread_st, process_threads);
   LIST(struct thread_st, ready_queue);