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Post by mirkosoft on Feb 20, 2015 13:24:27 GMT
Hi!
I upgraded BOOTER to new version and I tested it again. I set internal or external ROM in VICE and at start in VIC screen was all working correctly. When I set 40/80 key and reboot VICE hangs - so I started monitor and saw same result which described Robert Willie (aka Hydrophilic) with MMU config problem. When I start computer at VIC screen all is ok and bank 15 is set. When I start at VDC screen in $FF00 is stored unusable value $16... really what there makes changes between 40 and 80 column screens?
Really see no difference if I start it on other screen, only 40/80 key status, address 215 value... if are there any differencies it cannot to be so important that it disables setting $FF00 to any value.
Thank you for explaining my problem, many thanks - I'll get new REU 1750 with free EPROM socket and want to burn it to EPROM - so it's for me important.
Miro
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Post by VDC 8x2 on Feb 21, 2015 1:29:04 GMT
Has the 80 screen been initialized via the screen routine before switching?
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Post by mirkosoft on Feb 21, 2015 5:11:46 GMT
It's used as Int/Ext ROM - so computer starts in 80 column mode... after reset the same, no any software switch.
Miro
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Post by hydrophilic on Feb 22, 2015 3:28:28 GMT
Very interesting... I do not know of an answer based on your description. Post your ROM and somebody (likely me) will take a peek at the problem.
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Post by mirkosoft on Feb 22, 2015 9:53:12 GMT
OK Robert, ROM is posted and I'm thankful that you're helping me.
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Post by mirkosoft on Feb 25, 2015 1:46:21 GMT
No any idea?
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Post by hydrophilic on Feb 25, 2015 8:35:09 GMT
I have not looked yet... but I asked my employer for 2 days off = 4 day 'vacation'... so be optimistic
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Post by buzbard on Feb 25, 2015 23:11:57 GMT
Could you post the source for that? It would make debugging a lot easier.
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Post by hydrophilic on Mar 2, 2015 7:39:00 GMT
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Post by mirkosoft on Mar 8, 2015 21:35:46 GMT
If anyone of you will have any idea what else is different starting ROM on VDC screen, please let me know.
Miro
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