<title>cc65 function reference
<author><url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz">,<newline>
<url url="mailto:greg.king5@verizon.net" name="Greg King">
-<date>2017-11-21
+<date>2018-02-06
<abstract>
cc65 is a C compiler for 6502 based systems. This function reference describes
<!-- <item><ref id="cbm_save" name="cbm_save"> -->
<!-- <item><ref id="cbm_write" name="cbm_write"> -->
<!-- <item><ref id="get_tv" name="get_tv"> -->
+<item><ref id="waitvsync" name="waitvsync">
<item><ref id="kbrepeat" name="kbrepeat">
</itemize>
<item><ref id="chline" name="chline">
<item><ref id="chlinexy" name="chlinexy">
<item><ref id="clrscr" name="clrscr">
+<item><ref id="cpeekc" name="cpeekc">
+<item><ref id="cpeekcolor" name="cpeekcolor">
+<item><ref id="cpeekrevers" name="cpeekrevers">
+<item><ref id="cpeeks" name="cpeeks">
<item><ref id="cprintf" name="cprintf">
<item><ref id="cputc" name="cputc">
<item><ref id="cputcxy" name="cputcxy">
(incomplete)
+<sect1><tt/device.h/<label id="device.h"><p>
+
+<itemize>
+<item><ref id="getcurrentdevice" name="getcurrentdevice">
+<item><ref id="getdevicedir" name="getdevicedir">
+<item><ref id="getfirstdevice" name="getfirstdevice">
+<item><ref id="getnextdevice" name="getnextdevice">
+</itemize>
+
+
<sect1><tt/dio.h/<label id="dio.h"><p>
<url url="dio.html" name="Low-level disk I/O API">.
<item><ref id="telldir" name="telldir">
</itemize>
-(incomplete)
-
<sect1><tt/em.h/<label id="em.h"><p>
<sect1><tt/geos.h/<label id="geos.h"><p>
-(incomplete)
+<url url="geos.html" name="GEOS API">.
<sect1><tt/joystick.h/<label id="joystick.h"><p>
<item><ref id="strlen" name="strlen">
<item><ref id="strlower" name="strlower">
<item><ref id="strlwr" name="strlwr">
+<item><ref id="strncasecmp" name="strncasecmp">
<item><ref id="strncat" name="strncat">
<item><ref id="strncmp" name="strncmp">
<item><ref id="strncpy" name="strncpy">
+<item><ref id="strnicmp" name="strnicmp">
<item><ref id="strqtok" name="strqtok">
<item><ref id="strrchr" name="strrchr">
<item><ref id="strspn" name="strspn">
<item><ref id="strupr" name="strupr">
</itemize>
-(incomplete)
-
<sect1><tt/telestrat.h/<label id="telestrat.h"><p>
</quote>
+<sect1>cpeekc<label id="cpeekc"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get a character from the display memory.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/char cpeekc (void);/
+<tag/Description/The function gets the character that's at the current location
+of the cursor in the display screen RAM. That character is converted, if
+needed, into the encoding that can be passed to <tt/cputc()/.
+<tag/Notes/<itemize>
+<item>Conio peek functions don't have <tt/cpeek...xy()/ versions. That was
+done to make it obvious that peeking doesn't move the cursor in any way. Your
+program must place the cursor where it wants to peek before it calls any of
+those functions.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="cpeekcolor" name="cpeekcolor">,
+<ref id="cpeekrevers" name="cpeekrevers">,
+<ref id="cpeeks" name="cpeeks">,
+<ref id="cputc" name="cputc">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>cpeekcolor<label id="cpeekcolor"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get a color from the display memory.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/unsigned char cpeekcolor (void);/
+<tag/Description/The function gets the color number that's at the current
+location of the cursor in the display screen RAM. That number can be passed to
+<tt/textcolor()/.
+<tag/Notes/<itemize>
+<item>Conio peek functions don't have <tt/cpeek...xy()/ versions. That was
+done to make it obvious that peeking doesn't move the cursor in any way. Your
+program must place the cursor where it wants to peek before it calls any of
+those functions.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="cpeekc" name="cpeekc">,
+<ref id="cpeekrevers" name="cpeekrevers">,
+<ref id="cpeeks" name="cpeeks">,
+<ref id="cputc" name="cputc">,
+<ref id="textcolor" name="textcolor">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>cpeekrevers<label id="cpeekrevers"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get a reverse-character attribute from the display memory.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/unsigned char cpeekrevers (void);/
+<tag/Description/The function gets the "reverse-mode" attribute of the
+character that's at the current location of the cursor in the display screen
+RAM. It returns a boolean value (0/1) that can be passed to <tt/revers()/.
+<tag/Notes/<itemize>
+<item>Conio peek functions don't have <tt/cpeek...xy()/ versions. That was
+done to make it obvious that peeking doesn't move the cursor in any way. Your
+program must place the cursor where it wants to peek before it calls any of
+those functions.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="cpeekc" name="cpeekc">,
+<ref id="cpeekcolor" name="cpeekcolor">,
+<ref id="cpeeks" name="cpeeks">,
+<ref id="cputc" name="cputc">,
+<ref id="revers" name="revers">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>cpeeks<label id="cpeeks"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get a string from the display memory.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/void __fastcall__ cpeeks (char* s, unsigned length);/
+<tag/Description/The function gets a fixed-length string ('\0'-terminated) of
+characters that start at the current location of the cursor in the display
+screen RAM. Those characters are converted, if needed, into the encoding that
+can be passed to <tt/cputs()/. The first argument must point to a RAM area
+that's large enough to hold "length + 1" bytes.
+<tag/Notes/<itemize>
+<item>Conio peek functions don't have <tt/cpeek...xy()/ versions. That was
+done to make it obvious that peeking doesn't move the cursor in any way. Your
+program must place the cursor where it wants to peek before it calls any of
+those functions.
+<item>The function is available as only a fastcall function;
+so, it may be used only in the presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="cpeekc" name="cpeekc">,
+<ref id="cpeekcolor" name="cpeekcolor">,
+<ref id="cpeekrevers" name="cpeekrevers">,
+<ref id="cputc" name="cputc">,
+<ref id="cputs" name="cputs">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>creat<label id="creat"><p>
<quote>
<tag/Availability/cc65
<tag/Example/<verb>
/* Hello World */
-#include <stdio.h>
-#include <unistd.h>
-#include <cc65.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <cc65.h>
int main(void)
{
printf("Hello World\n");
</quote>
+<sect1>getcurrentdevice<label id="getcurrentdevice"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get current device.
+<tag/Header/<tt/<ref id="device.h" name="device.h">/
+<tag/Declaration/<tt/unsigned char getcurrentdevice (void);/
+<tag/Description/The function returns the current device.
+<tag/Notes/<itemize>
+<item>
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="getdevicedir" name="getdevicedir">,
+<ref id="getfirstdevice" name="getfirstdevice">,
+<ref id="getnextdevice" name="getnextdevice">
+<tag/Example/<verb>
+puts (getdevicedir (getcurrentdevice (), buf, sizeof buf));
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>getdevicedir<label id="getdevicedir"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get device directory.
+<tag/Header/<tt/<ref id="device.h" name="device.h">/
+<tag/Declaration/<tt/char* __fastcall__ getdevicedir (unsigned char device, char* buf, size_t size);/
+<tag/Description/The function returns the current directory of <tt/device/.
+<tag/Notes/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="getcwd" name="getcwd">,
+<ref id="getcurrentdevice" name="getcurrentdevice">,
+<ref id="getfirstdevice" name="getfirstdevice">,
+<ref id="getnextdevice" name="getnextdevice">
+<tag/Example/<verb>
+puts (getdevicedir (getcurrentdevice (), buf, sizeof buf));
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>getfirstdevice<label id="getfirstdevice"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get first device.
+<tag/Header/<tt/<ref id="device.h" name="device.h">/
+<tag/Declaration/<tt/unsigned char getfirstdevice (void);/
+<tag/Description/The function returns the first device.
+The value 255 indicates no device.
+<tag/Notes/<itemize>
+<item>
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="getcurrentdevice" name="getcurrentdevice">,
+<ref id="getdevicedir" name="getdevicedir">,
+<ref id="getnextdevice" name="getnextdevice">
+<tag/Example/<verb>
+unsigned char dev = getfirstdevice ();
+while (dev != 255) {
+ printf ("%d\n", dev);
+ dev = getnextdevice (dev);
+ }
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>getnextdevice<label id="getnextdevice"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get next device.
+<tag/Header/<tt/<ref id="device.h" name="device.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ getnextdevice (unsigned char device);/
+<tag/Description/The function returns the next device after <tt/device/.
+The value 255 indicates no further device.
+<tag/Notes/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="getcurrentdevice" name="getcurrentdevice">,
+<ref id="getdevicedir" name="getdevicedir">,
+<ref id="getfirstdevice" name="getfirstdevice">
+<tag/Example/<verb>
+unsigned char dev = getfirstdevice ();
+while (dev != 255) {
+ printf ("%d\n", dev);
+ dev = getnextdevice (dev);
+ }
+</verb>
+</descrip>
+</quote>
+
+
<sect1>getenv<label id="getenv"><p>
<quote>
</quote>
+<sect1>strncasecmp<label id="strncasecmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings case insensitive.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strncasecmp (const char* s1, const char* s2, size_t count);/
+<tag/Description/The <tt/strncasecmp/ function compares the two strings passed
+as parameters without case sensitivity. It returns a value that is less than
+zero if <tt/s1/ is less than <tt/s2/, zero if <tt/s1/ is the same as <tt/s2/,
+and a value greater than zero if <tt/s1/ is greater than <tt/s2/.
+<tag/Notes/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The function is not available in strict ANSI mode.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="strcmp" name="strcmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="stricmp" name="stricmp">,
+<ref id="strncmp" name="strncmp">,
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>strncat<label id="strncat"><p>
<quote>
</quote>
+<sect1>strnicmp<label id="strnicmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings case insensitive.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strnicmp (const char* s1, const char* s2, size_t count);/
+<tag/Description/The <tt/strnicmp/ function compares the two strings passed as
+parameters without case sensitivity. It returns a value that is less than zero
+if <tt/s1/ is less than <tt/s2/, zero if <tt/s1/ is the same as <tt/s2/, and a
+value greater than zero if <tt/s1/ is greater than <tt/s2/.
+<tag/Notes/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The function is not available in strict ANSI mode.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="strcasecmp" name="strcasecmp">,
+<ref id="strcmp" name="strcmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="strncmp" name="strncmp">,
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>strqtok<label id="strqtok"><p>
<quote>
<descrip>
<tag/Function/Wait until the start of the next frame.
<tag/Header/
+<tt/<ref id="cbm.h" name="cbm.h">/,
<tt/<ref id="gamate.h" name="gamate.h">/,
<tt/<ref id="nes.h" name="nes.h">/,
<tt/<ref id="pce.h" name="pce.h">/
projects / cc65 / blobdiff