http://apple2.guidero.us/ 2026-05-02T06:34:54-04:00 http://apple2.guidero.us/ http://apple2.guidero.us/lib/tpl/monochrome/images/favicon.ico text/html 2018-01-26T03:22:43-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/appletalk?rev=1516954963&do=diff LC //e Card - AppleTalk Notes It is fairly easy to mess up AppleTalk from the //e environment to the point of having to restart the whole machine, not just the //e Card. The AppleTalk node address is shared with the host Macintosh. The main side effect of this is that the AppleTalk stack on the text/html 2019-06-24T15:45:33-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/ctrl_oa_reset?rev=1561405533&do=diff LC //e Card - Control+Open Apple+Reset Pressing will cause the Apple //e card to reboot. Unfortunately, it also appears to queue up a reboot in the host Macintosh as well. After using , quitting IIe Startup will cause the host Macintosh to reboot immediately. text/html 2017-07-25T16:19:16-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/firmware?rev=1501013956&do=diff LC //e Card - Memory / Firmware Notes The //e Card has 256K of memory. Of this, 128K is allocated as the Apple //e's main memory. I have determined that another 64K is used to store 3 firmware banks plus the $C800 code associated with the 5.25 drive code. I believe that at least part of the remaining 64K is used for the $C800 space of the remaining text/html 2018-02-08T13:00:35-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/iie_startup_resources?rev=1518112835&do=diff LC //e Card - IIe Startup Resources These are the most interesting resources in IIe Startup. CNmc These might be Macintosh-side drivers for each of the “cards.” 4608 2336 "SmartPort" 5376 1110 "AppleClock" 24576 300 "IntlKeyDriver" 5632 126 "Slot6" 4352 2038 "MouseCard" 4864 2184 "Modem" 5888 2186 "Printer" 4096 672 "Slinky" 6400 3080 "Ne… text/html 2018-02-08T12:27:28-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/io_addresses?rev=1518110848&do=diff LC //e Card - I/O Addresses $C000-$C07F Locations with undefined reads in the $C000-$C07F range tend to return the last key pressed. Address R/W Use $C028 R/W Switch to main firmware (undocumented). $C029 R/W Switch to alt firmware bank (undocumented). text/html 2019-10-14T04:01:48-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/mac_side_interface?rev=1571040108&do=diff LC //e Card - Mac-side Interface The card Appears in the Macintosh LC as a series of registers in the slot's I/O space. Each has 16 bits of usable data in big-endian order. Therefore the high byte is at the register+0 address, low byte at the register+1 address. text/html 2019-10-14T03:59:38-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/problem_software?rev=1571039978&do=diff LC //e Card - Problematic Software Nearly all software that crashes on the Apple //e Card for Macintosh LC is likely because of accesses to $C029. This location is the NEWVIDEO register on the Apple IIgs which is used for, among other things, turning on and off super hi-res graphics modes. text/html 2017-08-06T02:34:28-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/smartport?rev=1502001268&do=diff LC //e Card - SmartPort The Card's smartport interface does not provide device names for hard disk partitions, and it does not return values for the type/subtype/version. This results in anomalous output from programs that use these values, including SlotScan and davex's text/html 2017-08-13T19:42:15-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/start?rev=1502667735&do=diff MG's Apple //e Card Tech Notes <ul class="catlist-nslist" ><li class="catlist-page">LC //e Card - AppleTalk Notes</li><li class="catlist-page">LC //e Card - Control+Open Apple+Reset</li><li class="catlist-page">LC //e Card - Memory / Firmware Notes</li><li class="catlist-page">LC //e Card - IIe Startup Resources</li><li class="catlist-page">LC //e Card - I/O Addresses</li><li class="catlist-page">LC //e Card - Mac-side Interface</li><li class="catlist-page">LC //e Card - Problematic Software</l… text/html 2017-08-08T02:50:33-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/things_go_boom?rev=1502175033&do=diff LC //e Card - Things That Make You Go Boom! Accessing $C0xD where x = 8+the slot of an AppleTalk “card”, will crash the Apple //e Card and its driver software. In the monitor, listing through the IWM I/O space in slot 6 will cause the disk motor to come on. When the disk motor comes on, the text/html 2019-08-14T15:22:22-04:00 http://apple2.guidero.us/doku.php/mg_notes/iie_card/weird_stuff?rev=1565810542&do=diff LC //e Card - Weird Stuff: Opcode $02 Weird Beep The //e Card is able to replace the standard Apple II beep with a Macintosh sound. The means by which this is accomplished is quite interesting. The routine at $fbdd (BELL1) is .org $fbdd ; this code replaces the .1 second delay .byte $02 ; two byte NOP in 65C02 .byte $01 ; should be ignored by CPU rts nop nop ; remaining code matches the original //e code and calling $fbe2 ; will produce a beep, at the wrong pitch if the…