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cbm_k_ functions documented
git-svn-id: svn://svn.cc65.org/cc65/trunk@5775 b7a2c559-68d2-44c3-8de9-860c34a00d81
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doc/funcref.sgml
531
doc/funcref.sgml
@ -143,27 +143,26 @@ function.
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<sect1><tt/cbm.h/<label id="cbm.h"><p>
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<!-- <itemize> -->
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<!-- <item><ref id="cbm_k_acptr" name="cbm_k_acptr"> -->
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<!-- <item><ref id="cbm_k_basin" name="cbm_k_basin"> -->
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<!-- <item><ref id="cbm_k_bsout" name="cbm_k_bsout"> -->
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<!-- <item><ref id="cbm_k_chkin" name="cbm_k_chkin"> -->
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<!-- <item><ref id="cbm_k_ciout" name="cbm_k_ciout"> -->
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<!-- <item><ref id="cbm_k_ckout" name="cbm_k_ckout"> -->
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<!-- <item><ref id="cbm_k_clall" name="cbm_k_clall"> -->
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<!-- <item><ref id="cbm_k_close" name="cbm_k_close"> -->
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<!-- <item><ref id="cbm_k_clrch" name="cbm_k_clrch"> -->
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<!-- <item><ref id="cbm_k_getin" name="cbm_k_getin"> -->
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<!-- <item><ref id="cbm_k_iobase" name="cbm_k_iobase"> -->
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<!-- <item><ref id="cbm_k_listen" name="cbm_k_listen"> -->
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<!-- <item><ref id="cbm_k_load" name="cbm_k_load"> -->
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<!-- <item><ref id="cbm_k_open" name="cbm_k_open"> -->
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<!-- <item><ref id="cbm_k_readst" name="cbm_k_readst"> -->
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<!-- <item><ref id="cbm_k_save" name="cbm_k_save"> -->
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<!-- <item><ref id="cbm_k_setlfs" name="cbm_k_setlfs"> -->
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<!-- <item><ref id="cbm_k_setnam" name="cbm_k_setnam"> -->
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<!-- <item><ref id="cbm_k_talk" name="cbm_k_talk"> -->
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<!-- <item><ref id="cbm_k_unlsn" name="cbm_k_unlsn"> -->
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<itemize>
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<item><ref id="cbm_k_acptr" name="cbm_k_acptr">
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<item><ref id="cbm_k_basin" name="cbm_k_basin">
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<item><ref id="cbm_k_bsout" name="cbm_k_bsout">
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<item><ref id="cbm_k_chkin" name="cbm_k_chkin">
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<item><ref id="cbm_k_ciout" name="cbm_k_ciout">
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<item><ref id="cbm_k_ckout" name="cbm_k_ckout">
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<item><ref id="cbm_k_clall" name="cbm_k_clall">
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<item><ref id="cbm_k_close" name="cbm_k_close">
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<item><ref id="cbm_k_clrch" name="cbm_k_clrch">
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<item><ref id="cbm_k_getin" name="cbm_k_getin">
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<item><ref id="cbm_k_iobase" name="cbm_k_iobase">
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<item><ref id="cbm_k_listen" name="cbm_k_listen">
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<item><ref id="cbm_k_load" name="cbm_k_load">
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<item><ref id="cbm_k_open" name="cbm_k_open">
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<item><ref id="cbm_k_readst" name="cbm_k_readst">
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<item><ref id="cbm_k_save" name="cbm_k_save">
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<item><ref id="cbm_k_setlfs" name="cbm_k_setlfs">
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<item><ref id="cbm_k_setnam" name="cbm_k_setnam">
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<item><ref id="cbm_k_unlsn" name="cbm_k_unlsn">
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<!-- <item><ref id="cbm_load" name="cbm_load"> -->
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<!-- <item><ref id="cbm_open" name="cbm_open"> -->
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<!-- <item><ref id="cbm_opendir" name="cbm_opendir"> -->
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@ -171,7 +170,7 @@ function.
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<!-- <item><ref id="cbm_readdir" name="cbm_readdir"> -->
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<!-- <item><ref id="cbm_save" name="cbm_save"> -->
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<!-- <item><ref id="cbm_write" name="cbm_write"> -->
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<!-- </itemize> -->
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</itemize>
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(incomplete)
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@ -1558,6 +1557,494 @@ be used in presence of a prototype.
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</quote>
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<sect1>cbm_k_acptr<label id="cbm_k_acptr"><p>
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<quote>
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<descrip>
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<tag/Function/Input byte from serial bus
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned char cbm_k_acptr (void);/
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<tag/Description/The function returns a byte of data, which it
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gets from the current TALKer on the serial bus.
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In order to receive the data, the device must have previously been
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sent a command to TALK and a secondary address if it needs one.
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_talk" name="cbm_k_talk">,
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_basin<label id="cbm_k_basin"><p>
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<quote>
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<descrip>
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<tag/Function/Input a Character from the Current Device
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned char cbm_k_basin (void);/
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<tag/Description/The function returns a character from the current input device.
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Device must first have been OPENed and then designated as the input channel by the CHKIN routine.
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When this function is called, the next byte of data available from the device is returned.
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Exception is the routine for the keyboard device (which is the default input device).
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_open" name="cbm_k_open">,
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<ref id="cbm_k_chkin" name="cbm_k_chkin">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_bsout<label id="cbm_k_bsout"><p>
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<quote>
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<descrip>
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<tag/Function/Output a byte
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void __fastcall__ cbm_k_bsout (unsigned char C);/
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<tag/Description/Function sends the character to the current output device.
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Unless a device has been OPENed and designated as the
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current output channel using the CHKOUT routine, the character is
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printed to the screen, which is the default output device. If the
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cassette is the current device, outputting a byte will only add it to
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the buffer. No actual transmission of data will occur until the
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192-byte buffer is full.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_open" name="cbm_k_open">,
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<ref id="cbm_k_chkin" name="cbm_k_chkout">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_chkin<label id="cbm_k_chkin"><p>
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<quote>
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<descrip>
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<tag/Function/Designate a Logical File As the Current Input Channel
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned char __fastcall__ cbm_k_chkin (unsigned char FN);/
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<tag/Description/If you wish to
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get data from any device other than the keyboard, this function must be
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called after OPENing the device, before you can get a data byte with
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the cbm_k_basin or cbm_k_getin routine. When called, the routine will designate
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the logical file whose file number was supplied as the
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current file, its device as the current device, and its secondary
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address as the current secondary address. If the device on the
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channel is a serial device, which requires a TALK command and
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sometimes a secondary address, function will send them over the
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serial bus.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_open" name="cbm_k_open">,
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<ref id="cbm_k_basin" name="cbm_k_basin">,
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<ref id="cbm_k_getin" name="cbm_k_getin">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_ciout<label id="cbm_k_ciout"><p>
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<quote>
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<descrip>
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<tag/Function/Transmit a byte over the serial bus
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void __fastcall__ cbm_k_ciout (unsigned char C);/
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<tag/Description/Purpose of this function is to send a byte of data over
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the serial bus. In order for the data to be received, the serial
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device must have first been commanded to LISTEN and been given a
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secondary address if necessary. This routine always buffers the
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current character, and defers sending it until the next byte is
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buffered. When the UNLISTEN command is sent, the last byte will be
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sent with an End or Identify (EOI).
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_listen" name="cbm_k_listen">,
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<ref id="cbm_k_unlsn" name="cbm_k_unlsn">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_ckout<label id="cbm_k_ckout"><p>
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<quote>
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<descrip>
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<tag/Function/Designate a Logical File As the Current Output Channel
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned char __fastcall__ cbm_k_ckout (unsigned char FN);/
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<tag/Description/If you wish to
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output data to any device other than the screen, this routine must be
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called after OPENing the device, and before you output a data byte
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with the cbm_k_bsout() function. When called, the function will designate the
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logical file whose file number was supplied as the current
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file, its device as the current device, and its secondary address as
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the current secondary address. If the device on the channel uses the
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serial bus, and therefore requires a LISTEN command and possibly a
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secondary address, this information will be sent on the bus.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_bsout" name="cbm_k_bsout">,
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<ref id="cbm_k_listen" name="cbm_k_listen">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_clall<label id="cbm_k_clall"><p>
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<quote>
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<descrip>
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<tag/Function/Close All Logical I/O Files
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void cbm_k_clall (void);/
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<tag/Description/It closes all
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open files, by resetting the index into open files to
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zero and restores the default I/O devices.
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_open" name="cbm_k_open">,
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<ref id="cbm_k_close" name="cbm_k_close">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_close<label id="cbm_k_close"><p>
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<quote>
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<descrip>
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<tag/Function/Close a Logical I/O File
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void __fastcall__ cbm_k_close (unsigned char FN);/
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<tag/Description/It is used to
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close a logical file after all I/O operations involving that file have
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been completed.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_open" name="cbm_k_open">,
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<ref id="cbm_k_clall" name="cbm_k_clall">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_clrch<label id="cbm_k_clrch"><p>
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<quote>
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<descrip>
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<tag/Function/Restore Current Input and Output Devices to the Default Devices
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void cbm_k_clrch (void);/
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<tag/Description/It sets the
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current input device to the keyboard, and the current output device to
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the screen. Also, if the current input device was formerly a serial
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device, the routine sends it an UNTALK command on the serial bus, and
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if a serial device was formerly the current output device, the routine
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sends it an UNLISTEN command.
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_chkin" name="cbm_k_chkin">,
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<ref id="cbm_k_ckout" name="cbm_k_ckout">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_getin<label id="cbm_k_getin"><p>
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<quote>
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<descrip>
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<tag/Function/Get One Byte from the Input Device
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned char cbm_k_getin (void);/
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<tag/Description/Function gets a character from the current input device.
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_basin" name="cbm_k_basin">,
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_iobase<label id="cbm_k_iobase"><p>
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<quote>
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<descrip>
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<tag/Function/Return Base Address of Memory-Mapped I/O Devices
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned cbm_k_iobase (void);/
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<tag/Description/This function returns the address of
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the memory section where the memory mapped I/O devices are located. This
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address can then be used with an offset to access the memory mapped I/O
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devices in the Commodore 64. The offset is the number of locations from
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the beginning of the page on which the I/O register you want is located.
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This function exists to provide compatibility between the Commodore 64,
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VIC-20, and future models of the Commodore 64. If the I/O locations for
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a program are set by a call to this function, they should
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still remain compatible with future versions of the Commodore 64, the
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KERNAL and BASIC.
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<tag/Limits/<itemize>
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<item>
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_listen<label id="cbm_k_listen"><p>
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<quote>
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<descrip>
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<tag/Function/Command a device on the serial bus to LISTEN
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/void __fastcall__ cbm_k_listen (unsigned char dev);/
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<tag/Description/This function will command a device on the serial bus to
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receive data. The KERNAL routine will OR the supplied device number bit by bit
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to convert it to a listen address, then transmits this data as a command on
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the serial bus. The specified device will then go into listen mode, and
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be ready to accept information.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
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only be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="cbm_k_unlsn" name="cbm_k_unlsn">,
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cbm_k_load<label id="cbm_k_load"><p>
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<quote>
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<descrip>
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<tag/Function/Load RAM from a Device
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<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
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<tag/Declaration/<tt/unsigned int __fastcall__ cbm_k_load(unsigned char flag, unsigned addr);/
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<tag/Description/This function LOADs data bytes from any input device directly into the memory.
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It can also be used for a verify operation, comparing data from a device with the data already in
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memory, while leaving the data stored in RAM unchanged.
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The flag must be set to 0 for a LOAD operation, or 1 for a
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verify, If the input device is OPENed with a secondary address (SA) of 0
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the header information from the device is ignored. In this case, the starting address for the load must be supplied.
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If the device is addressed with a secondary address of 1, then the data is
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loaded into memory starting at the location specified by the header.
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Function returns the address of the highest RAM location loaded.
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Before this function can be called, the KERNAL SETLFS, and SETNAM
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routines must be called.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may
|
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only be used in presence of a prototype.
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</itemize>
|
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<tag/Availability/cc65
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<tag/See also/
|
||||
<ref id="cbm_k_setlfs" name="cbm_k_setlfs">,
|
||||
<ref id="cbm_k_setnam" name="cbm_k_setnam">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_open<label id="cbm_k_open"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Open a Logical I/O File
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/unsigned char cbm_k_open (void);/
|
||||
<tag/Description/This function assigns a logical file to a device, so that it can be used for
|
||||
Input/Output operations. In order to specify the logical file number,
|
||||
the device number, and the secondary address if any, the cbm_k_setlfs() function must first be called.
|
||||
Likewise, in order to designate the filename, the cbm_k_setnam() function must be used first. After these two
|
||||
functions are called, cbm_k_open() is then called.
|
||||
<tag/Limits/<itemize>
|
||||
<item>
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
<ref id="cbm_k_setlfs" name="cbm_k_setlfs">,
|
||||
<ref id="cbm_k_setnam" name="cbm_k_setnam">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_readst<label id="cbm_k_readst"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Read status word
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/unsigned char cbm_k_readst (void);/
|
||||
<tag/Description/This function returns the current status of the I/O devices. It is usually called after new communication to an I/O device and gives information about device status, or errors that have occurred during the I/O operation.
|
||||
<tag/Limits/<itemize>
|
||||
<item>
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_save<label id="cbm_k_save"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Save RAM to a Device
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/unsigned char __fastcall__ cbm_k_save(unsigned int start, unsigned int end)/
|
||||
<tag/Description/This function saves a section of memory. The cbm_k_setlfs() and cbm_k_setnam() functions must be
|
||||
used before calling this function. However, a file name is not required to
|
||||
SAVE to device 1 (the Datassette(TM) recorder). Any attempt to save to
|
||||
other devices without using a file name results in an error. NOTE: Device 0 (the keyboard), device 2 (RS-232), and device 3 (the screen) cannot be SAVEd to. If the attempt is made, an error occurs, and the SAVE is stopped.
|
||||
<tag/Limits/<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="cbm_k_setlfs" name="cbm_k_setlfs">,
|
||||
<ref id="cbm_k_setnam" name="cbm_k_setnam">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_setlfs<label id="cbm_k_setlfs"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Set up a logical file
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/void __fastcall__ cbm_k_setlfs (unsigned char LFN, unsigned char DEV, unsigned char SA);/
|
||||
<tag/Description/This functions sets up the logical file by setting its number, device address,
|
||||
and secondary address.
|
||||
<tag/Limits/<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="cbm_k_setnam" name="cbm_k_setnam">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_setnam<label id="cbm_k_setnam"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Set Filename Parameters
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/void __fastcall__ cbm_k_setnam (const char* Name);/
|
||||
<tag/Description/This function is used to set up the file name for the OPEN,
|
||||
SAVE, or LOAD operations.
|
||||
<tag/Limits/<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="cbm_k_open" name="cbm_k_open">,
|
||||
<ref id="cbm_k_load" name="cbm_k_load">,
|
||||
<ref id="cbm_k_save" name="cbm_k_save">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_talk<label id="cbm_k_talk"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Commands device to TALK
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/void __fastcall__ cbm_k_talk (unsigned char dev);/
|
||||
<tag/Description/When called, it ORs the device number with the TALK code (64, $40) and sends it on the serial
|
||||
bus. This commands the device to TALK.
|
||||
<tag/Limits/<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="cbm_k_acptr" name="cbm_k_acptr">,
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cbm_k_unlsn<label id="cbm_k_unlsn"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Send an UNLISTEN command
|
||||
<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
|
||||
<tag/Declaration/<tt/void cbm_k_unlsn (void);/
|
||||
<tag/Description/This function commands all devices on the serial bus to
|
||||
stop receiving data from the host computer (i.e., UNLISTEN). Calling this
|
||||
function results in an UNLISTEN command being transmitted on the serial
|
||||
bus. Only devices previously commanded to LISTEN are affected. This
|
||||
function is normally used after the host computer is finished sending data
|
||||
to external devices. Sending the UNLISTEN commands the listening devices
|
||||
to get off the serial bus so it can be used for other purposes.
|
||||
<tag/Limits/<itemize>
|
||||
<item>
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>cclear<label id="cclear"><p>
|
||||
|
||||
<quote>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user