152 lines
3.7 KiB
C
152 lines
3.7 KiB
C
#include <system.h>
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#ifndef __CONSOLE_H
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#define __CONSOLE_H
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#define _ATTRIB 0x0F
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byte default_background, default_foreground;
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// Change cursor position
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void text_mode_cursor(int x, int y)
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{
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unsigned temp = y*current_mode_width + x;
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outportb (0x3D4, 14);
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outportb (0x3D5, temp >> 8);
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outportb (0x3D4, 15);
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outportb (0x3D5, temp);
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}
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// Set the default colors; max is 0x0F
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void set_default_colors(byte back, byte fore)
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{
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if (back < 0x10) default_background = back;
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if (fore < 0x10) default_foreground = fore;
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}
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// Clear screen, and set font to default font
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void clrscr()
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{
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byte font = default_foreground | (default_background<<4);
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int i = 0;
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for (i = 0; i < current_mode_width*current_mode_height; i++)
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{ TextVideoRam[2*i] = 0;
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TextVideoRam[2*i+1] = font;
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}
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cursor_x = 0; cursor_y = 0;
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}
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void scroll(int n)
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{
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memcpy(TextVideoRam,
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TextVideoRam+(current_mode_width*n*2),
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2*current_mode_width*(current_mode_height - n));
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byte blank = default_foreground | (default_background<<4);
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int i;
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for (i = current_mode_width*(current_mode_height-n);
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i < current_mode_width*current_mode_height; i++){
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TextVideoRam[2*i] = 0;
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TextVideoRam[2*i+1] = blank;
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}
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}
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void _endl()
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{
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cursor_x = 0;
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if (++cursor_y >=25) {
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cursor_y = 24; scroll(1);
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}
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}
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// Put character on screen in specified position; can use different font colors
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void putc_pos_font(int x, int y, char c, byte back, byte fore)
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{
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TextVideoRam[2*(y*current_mode_width+x)] = c;
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TextVideoRam[2*(y*current_mode_width+x)+1] = fore|(back<<4);
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}
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// Put character on screen in specified position; use default font colors
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void putc_pos(int x, int y, char c)
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{
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TextVideoRam[2*(y*current_mode_width+x)] = c;
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}
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// Put character on screen in the current cursor position; different font colors
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void putc_font(char c, byte back, byte fore)
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{
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if (cursor_x > current_mode_width) _endl();
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if (c == '\n') {_endl(); return;};
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TextVideoRam[2*(cursor_y*current_mode_width+cursor_x)] = c;
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TextVideoRam[2*(cursor_y*current_mode_width+cursor_x)+1] = fore|(back<<4);
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cursor_x++;
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}
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// Put character on screen in the current cursor position; default font colors
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void putc(char c)
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{
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if (cursor_x > current_mode_width) _endl();
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if (c == '\n') {_endl(); return;};
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TextVideoRam[2*(cursor_y*current_mode_width+cursor_x)] = c;
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cursor_x++;
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}
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// Put string on screen in specified position; can use different font colors
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void puts_pos_font(int x, int y, char *str, byte back, byte fore)
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{
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int i;
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for (i = 0; str[i] != 0; i++)
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putc_pos_font(x+i, y, str[i], back, fore);
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}
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// Put string on screen in specified position; use default font colors
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void puts_pos(int x, int y, char *str)
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{
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int i;
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for (i = 0; str[i] != 0; i++)
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putc_pos(x+i, y, str[i]);
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}
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void puts(char *str)
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{
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int i;
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for (i = 0; str[i] != 0; i++)
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putc(str[i]);
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}
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void puts_font(char *str, byte back, byte fore)
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{
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int i;
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for (i = 0; str[i] != 0; i++)
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putc_font(str[i], back, fore);
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}
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void put_hex(int x, int y, unsigned int alpha)
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{
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char hex[] = "0123456789ABCDEF";
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char nr[9];
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int i;
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for (i = 7; i >= 0; i--) {
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nr[i] = hex[alpha%16];
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alpha /= 16;
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}
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nr[8] = 0;
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puts_pos(x, y, nr);
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}
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void put_bin (int x, int y, byte xz)
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{
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int i;
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char arr[9] = {0,0,0,0,0,0,0,0,0};
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for(i=7; i>=0; i--) {
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arr[i] = (xz%2) + '0'; xz/=2;
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}
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puts_pos (x, y, arr);
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}
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#endif |