+SpiceWare Posted September 7, 2017 Share Posted September 7, 2017 We're having some odd results with the 2600/7800 detection routine for CDF. I seem to recall somebody wrote a program that showed the initial state of the 2600's RAM, but I'm not able to find it. Anybody else remember this program? Quote Link to comment Share on other sites More sharing options...
alex_79 Posted September 7, 2017 Share Posted September 7, 2017 It was a test rom by Omegamatrix: https://atariage.com/forums/topic/230219-startup-values-of-the-2600/ 2 Quote Link to comment Share on other sites More sharing options...
+SpiceWare Posted September 7, 2017 Author Share Posted September 7, 2017 Thanks! Quote Link to comment Share on other sites More sharing options...
vidak Posted September 16, 2017 Share Posted September 16, 2017 There is a program by Dennis Debro in the Stella Mailing List! http://www.biglist.com/lists/stella/archives/200211/msg00166.html Sent from my ASUS_Z012D using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
TomSon Posted September 25, 2017 Share Posted September 25, 2017 (edited) We're having some odd results with the 2600/7800 detection routine for CDF. what about checklng the stack pointer after reset - it's different for 2600/7800: FF on 7800, FD on 2600 http://atariage.com/forums/topic/261488-reset-sp/ Edited September 25, 2017 by TomSon 1 Quote Link to comment Share on other sites More sharing options...
+SpiceWare Posted September 25, 2017 Author Share Posted September 25, 2017 what about checklng the stack pointer after reset - it's different for 2600/7800: FF on 7800, FD on 2600 Hmm, that's an idea, will have to do some experiments to see if it'll work. The CDF driver takes a while to initialize itself so when flashed to the Harmony/Melody it first stalls out the 6507 by having it run a routine in zero page. The stall routine isn't used if run from the Harmony Menu as the spinning ying-yang does the same thing. Quote Link to comment Share on other sites More sharing options...
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