nuclear@0: #include <string.h>
nuclear@0: #include "vid.h"
nuclear@0: 
nuclear@0: #define WIDTH	80
nuclear@0: #define HEIGHT	25
nuclear@0: static uint16_t *vmem = (uint16_t*)0xb8000;
nuclear@0: 
nuclear@0: void clear_scr(void)
nuclear@0: {
nuclear@0: 	memset(vmem, 0, WIDTH * HEIGHT * 2);
nuclear@0: }
nuclear@0: 
nuclear@0: void set_cursor(int x, int y)
nuclear@0: {
nuclear@0: 	if(x < 0 || x >= WIDTH || y < 0 || y >= HEIGHT) {
nuclear@0: 		/* disable cursor */
nuclear@0: 		return;
nuclear@0: 	}
nuclear@0: 	/* set cursor position */
nuclear@0: }
nuclear@0: 
nuclear@0: void put_char(char c, int x, int y, int fg, int bg)
nuclear@0: {
nuclear@0: 	uint16_t attr = (fg & 0xf) | ((bg & 7) << 4);
nuclear@0: 	vmem[y * 80 + x] = (uint16_t)c | (attr << 8);
nuclear@0: }