Hi Spiro, On Sun, Apr 7, 2019 at 10:14 AM Spiro Trikaliotis <ml-cbmhackers_at_trikaliotis.net> wrote: > > Hello, > > * On Sat, Apr 06, 2019 at 11:05:21PM +0200 Francesco Messineo wrote: > > > does the 2031 firmware make a write compatible format with the 4040? > > If yes, why did commodore change the 1541 code? > > No, it is not. The 2031 and 1540 are not write-compatible, the early > 1541 are not, but later 1541 (starting with 901229-03) are write > compatible with both 2031 and 4040: > > http://cbm-hackers.2304266.n4.nabble.com/C64-IEEE-interface-tp4659295p4660079.html > > http://www.softwolves.com/arkiv/cbm-hackers/11/11677.html > (have a look at the discussion of "GAP" being $08 or $09) Yes, I've read again those threads, so my next question is: what changes need to be made to the 2031 firmware to make it write compatible with the 4040? Is there a single byte to change to have 10 bytes gap like the 4040 does? FrankReceived on 2020-05-29 21:43:16
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