Am Freitag, 17. Mai 2019, 03:48:02 CEST schrieb Jim Brain: > Many clone drives used a direct copy, an obfuscated copy, or a > marginally modified 1541 drive ROM to power their units. > > Someone provided me a BlueChip/Amtech drive ROM, and I finally had a > chance to look at it. It's a 16kB ROM, and the e000 looks almost > exactly like the 1541 -05 or -06 ROM. The $c000 portion is radically > different, or at least looks different at first glance. But, given the > minimal changes in the upper half, I burned a copy and successfully > booted a 1541 with it. Thus, I'm wondering if someone could help me > decipher: > > * What is indeed different (of note) in the $e000 rom? > * Why the $c000 rom is so different, and does it need to be that way > (or, can I just replace it with a 1541 $c000 ROM image)? > > The files, if folks are interested, are at: > > http://www.jbrain.com/incoming/BlueChip/Amtech_BlueChip_ROM.BIN > > http://www.jbrain.com/incoming/BlueChip/Amtech_BlueChip_ROM_c000.BIN > > http://www.jbrain.com/incoming/BlueChip/Amtech_BlueChip_ROM_e000.BIN > > The latter two are just the first split in half. only the first link works :) -- http://hitmen.eu http://ar.pokefinder.org http://vice-emu.sourceforge.net http://magicdisk.untergrund.net Da singen sie: We are red, we are white, we are Danish Dynamite - Wir sind rote, wir sind weiße wir sind dänische..., äh... <Heribert Faßbender>Received on 2020-05-29 22:06:23
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