7 files changed, 57 insertions, 7 deletions
diff --git a/kernel/include/graphics.h b/kernel/include/graphics.h
index 16805a6..6f6f432 100644
--- a/kernel/include/graphics.h
+++ b/kernel/include/graphics.h
@@ -10,7 +10,11 @@ struct fb_t {
 	uint32_t height;
 	uint8_t bpp;
 	uint8_t type;
-} __attribute__((packed, aligned(8)));
+	uint32_t x;
+	uint32_t y;
+	uint32_t char_col;
+	uint32_t bg_col;
+};
 typedef struct fb_t fb_t;
 
 extern volatile fb_t main_fb;
@@ -23,11 +27,12 @@ extern volatile fb_t main_fb;
 #define WHITE	0x00ffffff
 #define BLACK	0x00000000
 
+void set_color(volatile fb_t* fb, uint32_t char_col, uint32_t bg_col);
+void clear_screen(volatile fb_t fb);
 void fb_draw_pixel(volatile fb_t fb, int32_t x, int32_t y, uint32_t col);
 void fb_draw_line_low(volatile fb_t fb, int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t col);
 void fb_draw_line_high(volatile fb_t fb, int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t col);
 void fb_draw_line(volatile fb_t fb, int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t col);
-void fb_draw_character(volatile fb_t fb, char c, int32_t x, int32_t y, uint32_t char_col, uint32_t bg_col);
-void fb_draw_string(volatile fb_t fb, const char* str, int32_t x, int32_t y, uint32_t char_col, uint32_t bg_col);
+void fb_draw_character(volatile fb_t fb, char c, int32_t x, int32_t y);
 
 #endif
diff --git a/kernel/include/libk/serial_stdio.h b/kernel/include/libk/serial_stdio.h
index 17317d0..5a4dda4 100644
--- a/kernel/include/libk/serial_stdio.h
+++ b/kernel/include/libk/serial_stdio.h
@@ -8,5 +8,6 @@ void serial_print_string(const char* s);
 void serial_print_int(uint64_t num);
 void serial_print_hex(uint64_t num);
 void serial_printf(const char *s, ...);
+void serial_vprintf(const char *s, va_list list);
 
 #endif
diff --git a/kernel/include/libk/stdio.h b/kernel/include/libk/stdio.h
index fc7b8e8..64d16f1 100644
--- a/kernel/include/libk/stdio.h
+++ b/kernel/include/libk/stdio.h
@@ -3,13 +3,11 @@
 
 #include <types.h>
 
-extern uint32_t curr_x;
-extern uint32_t curr_y;
-
 void print_char(char c);
 void print_string(const char* s);
 void print_int(uint64_t num);
 void print_hex(uint64_t num);
 void printf(const char *s, ...);
+void vprintf(const char *s, va_list list);
 
 #endif
diff --git a/kernel/include/panic.h b/kernel/include/panic.h
index 23b02f4..4949c77 100644
--- a/kernel/include/panic.h
+++ b/kernel/include/panic.h
@@ -1,6 +1,10 @@
 #ifndef PANIC_H
 #define PANIC_H
 
-__attribute__((noreturn)) void panic(void);
+#include <types.h>
+
+extern uint64_t panic_rsp;
+
+__attribute__((noreturn)) void panic(const char *error, ...);
 
 #endif
diff --git a/kernel/include/registers.h b/kernel/include/registers.h
new file mode 100644
index 0000000..a0c0949
--- /dev/null
+++ b/kernel/include/registers.h
@@ -0,0 +1,34 @@
+#ifndef REGISTERS_H
+#define REGISTERS_H
+
+#include <types.h>
+
+struct registers_t {
+	uint64_t rax;
+	uint64_t rbx;
+	uint64_t rcx;
+	uint64_t rdx;
+	uint64_t rsi;
+	uint64_t rdi;
+	uint64_t rsp;
+	uint64_t rbp;
+	uint64_t r8;
+	uint64_t r9;
+	uint64_t r10;
+	uint64_t r11;
+	uint64_t r12;
+	uint64_t r13;
+	uint64_t r14;
+	uint64_t r15;
+	uint64_t rip;
+	uint16_t cs;
+	uint16_t ds;
+	uint16_t ss;
+	uint16_t es;
+	uint16_t fs;
+	uint16_t gs;
+};
+typedef struct registers_t registers_t;
+
+
+#endif
diff --git a/kernel/include/syscall.h b/kernel/include/syscall.h
index 440f9e6..399e668 100644
--- a/kernel/include/syscall.h
+++ b/kernel/include/syscall.h
@@ -1,6 +1,13 @@
 #ifndef SYSCALL_H
 #define SYSCALL_H
 
+#define SYSCALL_READ 0
+#define SYSCALL_WRITE 1
+
+#include <types.h>
+
 void syscall_handler(void);
+void syscall_read(void);
+void syscall_write(char* buff, size_t count);
 
 #endif
diff --git a/kernel/include/types.h b/kernel/include/types.h
index b5f54be..8ce85c8 100644
--- a/kernel/include/types.h
+++ b/kernel/include/types.h
@@ -4,5 +4,6 @@
 #include <stdint.h>
 #include <stddef.h>
 #include <stdbool.h>
+#include <stdarg.h>
 
 #endif