28 lines
547 B
C
28 lines
547 B
C
#include "io.h"
|
|
#include "stdio.h"
|
|
#include "string.h"
|
|
|
|
char* fb = (char *) 0x000B8000;
|
|
|
|
void move_cursor(unsigned short pos)
|
|
{
|
|
outb(FB_CMD_PORT, FB_HIGH_BYTE_CMD);
|
|
outb(FB_DATA_PORT, ((pos >> 8) & 0x00FF));
|
|
outb(FB_CMD_PORT, FB_LOW_BYTE_CMD);
|
|
outb(FB_DATA_PORT, pos & 0x00FF);
|
|
}
|
|
|
|
void putchar(unsigned int i, char c, unsigned char fg, unsigned char bg)
|
|
{
|
|
fb[i] = c;
|
|
fb [i+1] = ((fg & 0x0F) << 4 | (bg & 0x0F));
|
|
}
|
|
|
|
void write(char *buf)
|
|
{
|
|
for (int i=0; i<strlen(buf); i++)
|
|
{
|
|
putchar(2*i, buf[i], FB_GREEN, FB_DARK_GREY);
|
|
}
|
|
}
|