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#define VGA_ADDRESS 0xb8000
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#define VGA_ADDRESS_MAX 0xb8fa0
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#define DEFAULT_COLOR 0x07
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#define URGENT_COLOR 0x0c
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#define SUCCESS_COLOR 0x0a
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#define MAX_ROWS 25
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#define MAX_COLS 80
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static unsigned int cursor_row;
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static unsigned int cursor_col;
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enum align {LEFT, RIGHT, MIDDLE};
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char* get_memory_charpos(unsigned int col, unsigned int row);
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void writechar(char c, unsigned int col, unsigned int row, int colorcode);
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void clear_screen();
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void clear_row(unsigned int row);
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void set_cursor_pos();
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void print();
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void println();
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void printint(int i, int attribute_byte);
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void printalign(char* str, int attribute_byte, enum align alignment);
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void vga_init();
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