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Re: 6809 mill clone
- Subject: Re: 6809 mill clone
- From: rjustice@internode.on.net
- Date: Mon, 30 Jul 2012 06:06:14 -0700 (PDT)
- Bytes: 2271
- Complaints-to: groups-abuse@google.com
- In-reply-to: <juu5po$ef2$1@news.xmission.com>
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- Newsgroups: comp.sys.apple2
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- References: <jupusq$esf$1@speranza.aioe.org> <jurfbn$bi3$1@news.xmission.com> <jus68j$f0c$1@speranza.aioe.org> <jus8nv$8su$1@news.xmission.com> <73c1dd2a-f110-4208-9e03-86d0b0f347cc@googlegroups.com> <juu5po$ef2$1@news.xmission.com>
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I notice in one of the source file posted in the apple6809 yahoo group by Willi from a new disk from Antoine, the memory map seems different to that listed on the hackzapple page.
Might be worth a try.
************************************************
*
* APPLE II REMAPPING ROM, V1.0 (1/82)
*
* THE BELOW SYMBOLS MUST BE USED IN DRIVERS, ETC
* TO ACCESS MEMORY WITHIN 6502 SPACE.
*
REMAP0 SET $C000 6502'S 0XXX = CXXX FOR 6809
REMAP1 SET $0000 6502'S 1XXX = 0XXX FOR 6809
REMAP2 SET REMAP1+$1000
REMAP3 SET REMAP2+$1000
REMAP4 SET REMAP3+$1000
REMAP5 SET REMAP4+$1000
REMAP6 SET REMAP5+$1000
REMAP7 SET REMAP6+$1000
REMAP8 SET REMAP7+$1000
REMAP9 SET $D000 START OF OS9 (TOP 12K OF 48K)
REMAPA SET REMAP9+$1000
REMAPB SET REMAPA+$1000
REMAPC SET $B000 APPLE CARD SLOTS & I/O FIRMWARE
REMAPD SET $8000 WITHIN OPTIONAL RAM CARD
REMAPE SET REMAPD+$1000 ALSO RAM CARD
REMAPF SET $A000 RAM CARD OR ROM