https://wikiti.brandonw.net/index.php?action=history&feed=atom&title=Z80_Routines%3AMemory%3ARAM_Access 2026-04-06T02:40:44Z Revision history for this page on the wiki MediaWiki 1.23.5 https://wikiti.brandonw.net/index.php?title=Z80_Routines:Memory:RAM_Access&diff=8683&oldid=prev 2009-10-25T19:48:28Z

<p><a href="/index.php?title=Routines:Memory:RAM_Access" class="mw-redirect" title="Routines:Memory:RAM Access">Routines:Memory:RAM Access</a> moved to <a href="/index.php?title=Z80_Routines:Memory:RAM_Access" title="Z80 Routines:Memory:RAM Access">Z80 Routines:Memory:RAM Access</a>: unite z80 routines</p> <table class='diff diff-contentalign-left'> <tr style='vertical-align: top;'> <td colspan='1' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='1' style="background-color: white; color:black; text-align: center;">Revision as of 19:48, 25 October 2009</td> </tr><tr><td colspan='2' style='text-align: center;'><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Galandros https://wikiti.brandonw.net/index.php?title=Z80_Routines:Memory:RAM_Access&diff=5853&oldid=prev 2007-04-12T00:25:04Z

<p>Created a page showing RAM page access (someone please proof read this!)</p> <p><b>New page</b></p><div>[[Category:Z80 Routines:Memory|RAM Access]]<br /> [[Category:Z80 Routines|RAM Access]]<br /> <br /> ==RAM page Access==<br /> This is a routine to easily access those RAM pages generally inaccessable.<br /> <br /> &lt;nowiki&gt;;=======READ/WRITE DATA FROM/TO RAM PAGE=======<br /> ;inputs: hl=offset of where to start reading data<br /> ; (ranges from 4000h-7FFFh for READING the 'Unused' RAM page)<br /> ; or (from 8000h-BFFFh for WRITING to the 'Unused' RAM page)<br /> ; bc=number of bytes to copy<br /> ; de=where to save the data<br /> ; (ranges from 4000h-7FFFh for WRITING to the 'Unused' RAM page)<br /> ; or (from 8000h-BFFFh for writing to the 'standard' RAM page)<br /> ; RAMPAGE=new page to read/write<br /> <br /> in a,(06h)<br /> push af<br /> ld a,RAMPAGE<br /> out (06h),a ;a=any valid RAM page number (83h-87h are unused by the OS <br /> ;see [[83Plus:OS:Ram Pages]] for more info on RAM pages<br /> ldir<br /> pop af<br /> out (06h),a<br /> ret&lt;/nowiki&gt;<br /> <br /> This routine is a modified version of the routine I use in my programs, and is untested, but seems like it would work. If there is anything I have forgotten PLEASE add it and tell me if possible.<br /> <br /> --Nyquist562--</div>

Nyquist562