1 /*****************************************************************************/
5 /* Direct console I/O */
9 /* (C) 1998-2007 Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
37 * This is the direct console interface for cc65. I do not like the function
38 * names very much, but the first version started as a rewrite of Borland's
39 * conio, and, even if the interface has changed, the names did not.
41 * The interface does direct screen I/O, so it is fast enough for most
42 * programs. I did not implement text windows, since many applications do
43 * not need them and should not pay for the additional overhead. It should
44 * be easy to add text windows on a higher level if needed,
46 * Most routines do not check the parameters. This may be unfortunate but is
47 * also related to speed. The coordinates are always 0/0 based.
57 #if !defined(_STDARG_H)
61 /* Include the correct machine-specific file */
62 #if defined(__APPLE2__)
64 #elif defined(__APPLE2ENH__)
65 # include <apple2enh.h>
66 #elif defined(__ATARI__)
68 #elif defined(__ATMOS__)
70 #elif defined(__CBM__)
72 #elif defined(__GEOS__)
74 #elif defined(__LUNIX__)
76 #elif defined(__LYNX__)
78 #elif defined(__NES__)
84 /*****************************************************************************/
86 /*****************************************************************************/
91 /* Clear the whole screen and put the cursor into the top left corner */
93 unsigned char kbhit (void);
94 /* Return true if there's a key waiting, return false if not */
96 void __fastcall__ gotox (unsigned char x);
97 /* Set the cursor to the specified X position, leave the Y position untouched */
99 void __fastcall__ gotoy (unsigned char y);
100 /* Set the cursor to the specified Y position, leave the X position untouched */
102 void __fastcall__ gotoxy (unsigned char x, unsigned char y);
103 /* Set the cursor to the specified position */
105 unsigned char wherex (void);
106 /* Return the X position of the cursor */
108 unsigned char wherey (void);
109 /* Return the Y position of the cursor */
111 void __fastcall__ cputc (char c);
112 /* Output one character at the current cursor position */
114 void __fastcall__ cputcxy (unsigned char x, unsigned char y, char c);
115 /* Same as "gotoxy (x, y); cputc (c);" */
117 void __fastcall__ cputs (const char* s);
118 /* Output a NUL-terminated string at the current cursor position */
120 void __fastcall__ cputsxy (unsigned char x, unsigned char y, const char* s);
121 /* Same as "gotoxy (x, y); puts (s);" */
123 int cprintf (const char* format, ...);
124 /* Like printf(), but uses direct screen output */
126 int __fastcall__ vcprintf (const char* format, va_list ap);
127 /* Like vprintf(), but uses direct screen output */
130 /* Return a character from the keyboard. If there is no character available,
131 * the function waits until the user does press a key. If cursor is set to
132 * 1 (see below), a blinking cursor is displayed while waiting.
135 int cscanf (const char* format, ...);
136 /* Like scanf(), but uses direct keyboard input */
138 int __fastcall__ vcscanf (const char* format, va_list ap);
139 /* Like vscanf(), but uses direct keyboard input */
141 unsigned char __fastcall__ cursor (unsigned char onoff);
142 /* If onoff is 1, a cursor is displayed when waiting for keyboard input. If
143 * onoff is 0, the cursor is hidden when waiting for keyboard input. The
144 * function returns the old cursor setting.
147 unsigned char __fastcall__ revers (unsigned char onoff);
148 /* Enable/disable reverse character display. This may not be supported by
149 * the output device. Return the old setting.
152 unsigned char __fastcall__ textcolor (unsigned char color);
153 /* Set the color for text output. The old color setting is returned. */
155 unsigned char __fastcall__ bgcolor (unsigned char color);
156 /* Set the color for the background. The old color setting is returned. */
158 unsigned char __fastcall__ bordercolor (unsigned char color);
159 /* Set the color for the border. The old color setting is returned. */
161 void __fastcall__ chline (unsigned char length);
162 /* Output a horizontal line with the given length starting at the current
166 void __fastcall__ chlinexy (unsigned char x, unsigned char y, unsigned char length);
167 /* Same as "gotoxy (x, y); chline (length);" */
169 void __fastcall__ cvline (unsigned char length);
170 /* Output a vertical line with the given length at the current cursor
174 void __fastcall__ cvlinexy (unsigned char x, unsigned char y, unsigned char length);
175 /* Same as "gotoxy (x, y); cvline (length);" */
177 void __fastcall__ cclear (unsigned char length);
178 /* Clear part of a line (write length spaces). */
180 void __fastcall__ cclearxy (unsigned char x, unsigned char y, unsigned char length);
181 /* Same as "gotoxy (x, y); cclear (length);" */
183 void __fastcall__ screensize (unsigned char* x, unsigned char* y);
184 /* Return the current screen size. */
186 void __fastcall__ cputhex8 (unsigned char val);
187 void __fastcall__ cputhex16 (unsigned val);
188 /* These shouldn't be here... */
192 /*****************************************************************************/
194 /*****************************************************************************/
198 /* On some platforms, functions are not available or are dummys. To suppress
199 * the call to these functions completely, the platform header files may
200 * define macros for these functions that start with an underline. If such a
201 * macro exists, a new macro is defined here, that expands to the one with the
202 * underline. The reason for this two stepped approach is that it is sometimes
203 * necessary to take the address of the function, which is not possible when
204 * using a macro. Since the function prototype is still present, #undefining
205 * the macro will give access to the actual function.
208 #if defined(_textcolor)
209 # define textcolor(x) _textcolor(x)
211 #if defined(_bgcolor)
212 # define bgcolor(x) _bgcolor(x)
214 #if defined(_bordercolor)
215 # define bordercolor(x) _bordercolor(x)