https://wikiti.brandonw.net/index.php?action=history&feed=atom&title=83Plus%3ABCALLs%3A80C683Plus:BCALLs:80C6 - Revision history2026-04-09T04:05:44ZRevision history for this page on the wikiMediaWiki 1.23.5https://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:80C6&diff=5689&oldid=prevBrandonw at 03:24, 23 February 20072007-02-23T03:24:06Z<p></p>
<p><b>New page</b></p><div>[[Category:83Plus:BCALLs:By_Name:Memory|WriteAByteSafe]] [[Category:83Plus:BCALLs:By_Name|WriteAByteSafe]] [[Category:83Plus:BCALLs:By_Address|80C6 - WriteAByteSafe]]<br />
== Synopsis ==<br />
'''Unofficial Name:''' WriteAByteSafe<br />
<br />
'''BCALL Address:''' 80C6<br />
<br />
Writes a byte to FlashROM, but will refuse to write to page 1Eh/3Eh/7Eh.<br />
<br />
=== Inputs ===<br />
* A = Flash page to write<br />
* DE = address to write<br />
* B = byte to write<br />
<br />
=== Outputs ===<br />
* NZ if the byte could not be written<br />
<br />
=== Destroys ===<br />
* AF, DE, BC, HL<br />
* [[83Plus:RAM:8478|OP1]]<br />
<br />
== Comments ==<br />
Flash must be [[83Plus:Ports:14|write enabled]] first.<br />
<br />
Note that you cannot use this to write a 1 bit over a 0, nor can you write to the certificate page (1Eh/3Eh/7Eh).</div>Brandonw