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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. ** 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. /* Define USE_STDIO, when you want to use the stdio functions.
** Undefine it when you want to use the stdio functions. ** Do not define it, when you want to use the conio functions.
** NOTE: Undefining CONIO will currently not work on the CBMs!!! ** 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 <conio.h>
#include <stdio.h> #include <stdio.h>
@@ -18,10 +21,13 @@
#define QUIT 'Q' #define QUIT 'Q'
/* r -- row. t -- table-column.
*/
static unsigned char height, width, r, t; static unsigned char height, width, r, t;
static int c; static int c;
#ifdef CONIO #ifndef USE_STDIO
# define PRINT cprintf # define PRINT cprintf
# define PUT(c) cputc((char)(c)) # define PUT(c) cputc((char)(c))
@@ -32,19 +38,22 @@ static int GET(void) {
PUT(c = (int)cgetc()); PUT(c = (int)cgetc());
return c; return c;
} }
#else #else
# define PRINT printf # define PRINT printf
# define GET getchar # define GET getchar
#endif #endif
int main(void) { int main(void) {
# ifdef CONIO # ifndef USE_STDIO
/* conio doesn't scroll! Avoid trouble by starting at the top /* conio doesn't scroll! Avoid trouble by starting at the top
** of the screen, and never going "below" the bottom of the screen. ** of the screen, and never going "below" the bottom of the screen.
*/ */
clrscr(); clrscr();
r = 7; /* allow for prompt */ r = 7; /* allow for prompt */
# endif # endif
/* This prompt fits on the VIC-20's narrow screen. /* 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"); PRINT("Type characters to see\r\ntheir hexadecimal code\r\nnumbers:\r\n\n");
screensize(&width, &height); /* get the screen's dimensions */ screensize(&width, &height); /* get the screen's dimensions */
width /= 6; /* get number of codes on a line */ width /= 6; /* get number of codes on a line */
cursor(true); cursor(true);
t = 0; t = 0;
while ((c = GET()) != EOF) { while ((c = GET()) != EOF) {
# ifdef CONIO # ifndef USE_STDIO
if (r == height) { if (r == height) {
clrscr(); clrscr();
t = 0;
PUT(c); /* echo char. again because screen was erased */ PUT(c); /* echo char. again because screen was erased */
r = 1; r = 1;
} }
if (c == '\n')
++r;
# endif # endif
PRINT("=$%02x ", c); PRINT("=$%02x ", c);
if (c == QUIT) if (c == QUIT)
break; break;
if (++t == width) { if (++t == width) {
PRINT("\r\n"); PRINT("\r\n");
++r; ++r;