<item><ref id="cbm_k_talk" name="cbm_k_talk">
<item><ref id="cbm_k_udtim" name="cbm_k_udtim">
<item><ref id="cbm_k_unlsn" name="cbm_k_unlsn">
+<item><ref id="cbm_k_untlk" name="cbm_k_untlk">
<!-- <item><ref id="cbm_load" name="cbm_load"> -->
<!-- <item><ref id="cbm_open" name="cbm_open"> -->
<!-- <item><ref id="cbm_opendir" name="cbm_opendir"> -->
<sect1><tt/em.h/<label id="em.h"><p>
+This header file contains definitions for extended memory access,
+see also <tt>testcode/lib/em-test.c</tt> and <tt>samples/multidemo.c</tt>.
+
<itemize>
<item><ref id="em_commit" name="em_commit">
<item><ref id="em_copyfrom" name="em_copyfrom">
<sect1><tt/serial.h/<label id="serial.h"><p>
-The <tt/serial.h/ header file contains definitions for initializing serial
-communication.
+This header file contains definitions for initializing serial
+communication, see also <tt>testcode/lib/ser-test.c</tt>.
<itemize>
<item><ref id="ser_close" name="ser_close">
</itemize>
<tag/Availability/cc65
<tag/See also/
-<ref id="cbm_k_unlsn" name="cbm_k_unlsn">,
+<ref id="cbm_k_unlsn" name="cbm_k_unlsn">
<tag/Example/None.
</descrip>
</quote>
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/Notes/<itemize>
-<item>
-</itemize>
<tag/Availability/cc65
<tag/See also/
<ref id="cbm_k_listen" name="cbm_k_listen">
</quote>
+<sect1>cbm_k_untlk<label id="cbm_k_untlk"><p>
+
+<quote>
+<descrip>
+<tag/Function/Send an UNTALK command
+<tag/Header/<tt/<ref id="cbm.h" name="cbm.h">/
+<tag/Declaration/<tt/void cbm_k_untlk (void);/
+<tag/Description/This function commands all devices on the serial bus to
+stop sending data to the host computer (i.e., UNTALK). Calling this
+function results in an UNTALK command being transmitted on the serial
+bus. Only devices previously commanded to TALK are affected. This
+function is normally used after the host computer is finished listening data
+to external devices. Sending the UNTALK commands the sending devices
+to get off the serial bus so it can be used for other purposes.
+<tag/Availability/cc65
+<tag/See also/
+<ref id="cbm_k_talk" name="cbm_k_talk">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>cclear<label id="cclear"><p>
<quote>
before a call to <tt/set_brk/.
<tag/Notes/<itemize>
<item>The break vector is reset on program termination, so it's not strictly
-necessary to call this function as a part of your clean-up when exitting the program.
+necessary to call this function as a part of your clean-up when exiting the program.
</itemize>
<tag/Availability/cc65
<tag/See also/
<tag/Description/<tt/reset_irq/ resets the C level interrupt request vector.
<tag/Notes/<itemize>
<item>The interrupt vector is reset on program termination, so it's not strictly
-necessary to call this function as a part of your clean-up when exitting the program.
+necessary to call this function as a part of your clean-up when exiting the program.
</itemize>
<tag/Availability/cc65
<tag/See also/
otherwise the <tt/BRK/ instruction will get executed over and over again.
<item>The break vector is reset on program termination, so it's not strictly
necessary to call <tt/<ref id="reset_brk" name="reset_brk">/ as a part of your
-clean-up when exitting the program.
+clean-up when exiting the program.
</itemize>
<tag/Availability/cc65
<tag/See also/
it.
<item>The interrupt vector is reset on program termination, so it's not strictly
necessary to call <tt/<ref id="reset_irq" name="reset_irq">/ as a part of your
-clean-up when exitting the program.
+clean-up when exiting the program.
</itemize>
<tag/Availability/cc65
<tag/See also/