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/*                         *** cursor.c ***                          */ 
/*                                                                   */ 
/* IBM - PC microsoft "C"                                            */ 
/*                                                                   */ 
/* Function to move the cursor to a specific r,c co-ordinate.        */ 
/*                                                                   */ 
/* Written by L. Cuthbertson, March 1984.                            */ 
/*                                                                   */ 
/*********************************************************************/ 
/*                                                                   */ 
 
#define NULL	'\000' 
#define POUND	'#' 
 
cursor(r,c) 
int r,c; 
{ 
	extern char CUP[]; 
	char row[3],col[4],command[20]; 
	int i,inpos,outpos; 
 
	/* initialize screen controls */ 
	scrinit(); 
 
	/* decode integer co-ordinates */ 
	sprintf(row,"%d",r); 
	sprintf(col,"%d",c); 
 
	/* build control sequence */ 
	inpos = 0;	/* position in control line */ 
	outpos = 0;	/* position in command line */ 
 
	while (CUP[inpos] != POUND) 
		command[outpos++] = CUP[inpos++]; 
 
	for (i=0;row[i] != NULL;i++) 
		command[outpos++] = row[i]; 
 
	inpos++; 
	while(CUP[inpos] != POUND) 
		command[outpos++] = CUP[inpos++]; 
 
	for (i=0;col[i] != NULL;i++) 
		command[outpos++] = col[i]; 
 
	inpos++; 
	while(CUP[inpos] != NULL) 
		command[outpos++] = CUP[inpos++]; 
 
	command[outpos] = NULL; 
 
	/* write command to screen */ 
	writes(command); 
}