http://apple2.guidero.us/ 2026-05-18T23:19:29-04:00 http://apple2.guidero.us/ http://apple2.guidero.us/lib/tpl/monochrome/images/favicon.ico text/html 2021-10-30T23:38:10-04:00 http://apple2.guidero.us/doku.php/mg_notes/general/hardware_probing?rev=1635651490&do=diff MG's Hardware Probing Guide Hardware probing on the Apple II is somewhat hard because there is no guarantee that expansion card designers have put ROM in the space where ROM normally exists ($CsXX). In fact, some cards (Microsoft Softcard & compatibles, Mockingboard & compatibles) put I/O or I/O-like behavior into the $CsXX space. text/html 2022-08-01T18:37:02-04:00 http://apple2.guidero.us/doku.php/mg_notes/general/io_page?rev=1659393422&do=diff O = Apple II+, E = Apple IIe, C = Apple IIc and IIc Plus, P = Apple IIc Plus Only, G = Apple IIgs, M = IIe PDS Card Only text/html 2017-10-12T14:21:07-04:00 http://apple2.guidero.us/doku.php/mg_notes/general/mem_map?rev=1507832467&do=diff Apple II Memory Map Main RAM / IIgs Bank 0 The IIgs screen buffers listed are not where the hardware actually draws them from. The real screen buffers are in Mega II “Slow RAM” bank $E0 and $E1. The IIgs hardware supports shadowing of the Bank 0 screen buffers to bank $E0. text/html 2017-10-12T14:22:24-04:00 http://apple2.guidero.us/doku.php/mg_notes/general/start?rev=1507832544&do=diff General Apple II Technical Info <ul class="catlist-nslist" ><li class="catlist-page">MG's Hardware Probing Guide</li><li class="catlist-page">Apple II I/O Page</li><li class="catlist-page">Apple II Memory Map</li></ul> ---------- ​