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Patch from Greg

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2191 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2003-06-03 11:39:02 +00:00
parent f47f86c7b4
commit 158d5a080f
1 changed files with 23 additions and 11 deletions
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34
samples/ascii.c
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@ -2,14 +2,17 @@
**
** Shows the ASCII (or ATASCII, PETSCII) codes of typed characters.
**
** 2002-12-25, Greg King <gngking@erols.com>
** 2003-03-09, Greg King <gngking@erols.com>
*/
/* Define CONIO when you want to use the conio functions.
** Undefine it when you want to use the stdio functions.
** NOTE: Undefining CONIO will currently not work on the CBMs!!!
/* Define USE_STDIO, when you want to use the stdio functions.
** Do not define it, when you want to use the conio functions.
** NOTE: stdin on some targets is line-bufferred. You might need to type
** a key, then tap the return(enter)-key, in order to see each code.
*/
/*
#define USE_STDIO
*/
#define CONIO
#include <conio.h>
#include <stdio.h>
@ -18,10 +21,13 @@
#define QUIT 'Q'
/* r -- row. t -- table-column.
*/
static unsigned char height, width, r, t;
static int c;
#ifdef CONIO
#ifndef USE_STDIO
# define PRINT cprintf
# define PUT(c) cputc((char)(c))
@ -32,19 +38,22 @@ static int GET(void) {
PUT(c = (int)cgetc());
return c;
}
#else
# define PRINT printf
# define GET getchar
#endif
int main(void) {
# ifdef CONIO
# ifndef USE_STDIO
/* conio doesn't scroll! Avoid trouble by starting at the top
** of the screen, and never going "below" the bottom of the screen.
*/
clrscr();
r = 7; /* allow for prompt */
r = 7; /* allow for prompt */
# endif
/* This prompt fits on the VIC-20's narrow screen.
@ -52,21 +61,24 @@ int main(void) {
PRINT("Type characters to see\r\ntheir hexadecimal code\r\nnumbers:\r\n\n");
screensize(&width, &height); /* get the screen's dimensions */
width /= 6; /* get number of codes on a line */
cursor(true);
cursor(true);
t = 0;
while ((c = GET()) != EOF) {
# ifdef CONIO
# ifndef USE_STDIO
if (r == height) {
clrscr();
t = 0;
PUT(c); /* echo char. again because screen was erased */
r = 1;
}
if (c == '\n')
++r;
# endif
PRINT("=$%02x ", c);
if (c == QUIT)
break;
break;
if (++t == width) {
PRINT("\r\n");
++r;