A poorly written OS for the x86 arch. (WIP)
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eOS/drivers/vga.h

19 lines
515 B

#define VGA_ADDRESS (char*)0xb8000
#define VGA_ADDRESS_MAX (char*)0xb8fa0
#define MAX_ROWS 25
#define MAX_COLS 80
static unsigned int cursor_row;
static unsigned int cursor_col;
enum align {LEFT, RIGHT, MIDDLE};
char* get_memory_charpos(unsigned int col, unsigned int row);
void writechar(char c, unsigned int col, unsigned int row, int colorcode);
void clear_screen();
void set_cursor_pos();
void print();
void println();
void printalign(char* str, int attribute_byte, enum align alignment);
void vga_init();