148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
/* -*- c -*- ------------------------------------------------------------- *
|
|
*
|
|
* Copyright 2004-2005 Murali Krishnan Ganapathy - All Rights Reserved
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
|
|
* Boston MA 02111-1307, USA; either version 2 of the License, or
|
|
* (at your option) any later version; incorporated herein by reference.
|
|
*
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
#include <string.h>
|
|
#include <com32.h>
|
|
#include "com32io.h"
|
|
#include "syslnx.h"
|
|
|
|
com32sys_t inreg,outreg; // Global register sets for use
|
|
|
|
/* Print character and attribute at cursor */
|
|
void cprint(char chr,char attr,unsigned int times,char disppage)
|
|
{
|
|
REG_AH(inreg) = 0x09;
|
|
REG_AL(inreg) = chr;
|
|
REG_BH(inreg) = disppage;
|
|
REG_BL(inreg) = attr;
|
|
REG_CX(inreg) = times;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
void setdisppage(char num) // Set the display page to specified number
|
|
{
|
|
REG_AH(inreg) = 0x05;
|
|
REG_AL(inreg) = num;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
char getdisppage() // Get current display page
|
|
{
|
|
REG_AH(inreg) = 0x0f;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
return REG_BH(outreg);
|
|
}
|
|
|
|
void getpos(char * row, char * col, char page)
|
|
{
|
|
REG_AH(inreg) = 0x03;
|
|
REG_BH(inreg) = page;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
*row = REG_DH(outreg);
|
|
*col = REG_DL(outreg);
|
|
}
|
|
|
|
void gotoxy(char row,char col, char page)
|
|
{
|
|
REG_AH(inreg) = 0x02;
|
|
REG_BH(inreg) = page;
|
|
REG_DX(inreg) = (row << 8)+col;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
unsigned char sleep(unsigned int msec)
|
|
{
|
|
unsigned long micro = 1000*msec;
|
|
|
|
REG_AH(inreg) = 0x86;
|
|
REG_CX(inreg) = (micro >> 16);
|
|
REG_DX(inreg) = (micro % 0x10000);
|
|
__intcall(0x15,&inreg,&outreg);
|
|
return REG_AH(outreg);
|
|
}
|
|
|
|
void beep()
|
|
{
|
|
REG_AH(inreg) = 0x0E;
|
|
REG_AL(inreg) = 0x07;
|
|
REG_BH(inreg) = 0;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
void scrollup()
|
|
{
|
|
unsigned int dx = (getnumrows()<< 8) + getnumcols();
|
|
REG_AH(inreg) = 0x06;
|
|
REG_AL(inreg) = 0x01;
|
|
REG_BH(inreg) = 0x07; // Attribute to write blanks lines
|
|
REG_DX(inreg) = dx; // BOT RIGHT corner to window
|
|
REG_CX(inreg) = 0; // TOP LEFT of window
|
|
}
|
|
|
|
char inputc(char * scancode)
|
|
{
|
|
REG_AH(inreg) = 0x10;
|
|
__intcall(0x16,&inreg,&outreg);
|
|
if (scancode)
|
|
*scancode = REG_AH(outreg);
|
|
return REG_AL(outreg);
|
|
}
|
|
|
|
void getcursorshape(char *start, char *end)
|
|
{
|
|
char page = getdisppage();
|
|
REG_AH(inreg) = 0x03;
|
|
REG_BH(inreg) = page;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
*start = REG_CH(outreg);
|
|
*end = REG_CL(outreg);
|
|
}
|
|
|
|
void setcursorshape(char start, char end)
|
|
{
|
|
REG_AH(inreg) = 0x01;
|
|
REG_CH(inreg) = start;
|
|
REG_CL(inreg) = end;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
char getchar(void)
|
|
{
|
|
REG_AH(inreg) = 0x08;
|
|
__intcall(0x21,&inreg,&outreg);
|
|
return REG_AL(outreg);
|
|
}
|
|
|
|
void setvideomode(char mode)
|
|
{
|
|
REG_AH(inreg) = 0x00;
|
|
REG_AL(inreg) = mode;
|
|
__intcall(0x10,&inreg,&outreg);
|
|
}
|
|
|
|
unsigned char checkkbdbuf()
|
|
{
|
|
REG_AH(inreg) = 0x11;
|
|
__intcall(0x16,&inreg,&outreg);
|
|
return (outreg.eflags.l & EFLAGS_ZF);
|
|
}
|
|
|
|
// Get char displayed at current position
|
|
unsigned char getcharat(char page)
|
|
{
|
|
REG_AH(inreg) = 0x08;
|
|
REG_BH(inreg) = page;
|
|
__intcall(0x16,&inreg,&outreg);
|
|
return REG_AL(outreg);
|
|
}
|
|
|