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15 December 2017, 23:55
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#1 |
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Registered User
Join Date: Mar 2016
Location: Australia
Posts: 882
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Detect CD32/akiko without enforcer hit
Is it possible to detect if I am running on a CD32 without peeking the akiko register and thus triggering an enforcer hit on MMU based machines?
Currently for a project I’m working on I have a special CD32 build that shuts down akiko before taking over the system, but this is the only difference and it would be nice to have a single build. |
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16 December 2017, 01:29
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#2 |
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Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,017
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Yup... easily done
When the server stops messing about claiming its busy, i'll attach my source code which does precisely that, and is system friendly so no Enforcer hits
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16 December 2017, 02:52
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#3 | |
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Registered User
Join Date: Mar 2016
Location: Australia
Posts: 882
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Quote:
Works perfectly. Happy days 
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16 December 2017, 08:56
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#4 |
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WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,573
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Enforcer only does FindResident("cdstrap") and if it exists, assumes CDTV or CD32 and marks both system's IO regions as valid.
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01 March 2018, 21:08
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#5 |
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Banned
Join Date: Nov 2007
Location: Trondheim, Norway
Posts: 1,893
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Detecting Amiga models isn't as easy as one would presume - look at my amazing CDTV!
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01 March 2018, 22:37
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#6 | |
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Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,017
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Quote:
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02 March 2018, 11:08
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#7 |
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Banned
Join Date: Nov 2007
Location: Trondheim, Norway
Posts: 1,893
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Sorry for confusion - the screenshot _is_ CD32, with SX32 Pro, I should have put CDTV in quotes - WhichAmiga seems to detect the Akiko, but still conclude that it is CDTV. Several programs could need better detection routines (I just sent Thomas Richter a heads up, looks like his LoadModule loads A1200 modules instead of CD32 modules). Even a small CLI tool to detect whether a system is CD32 could be useful.
Sorry for spinning this a bit off-topic 
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02 March 2018, 11:22
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#8 |
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son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,355
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A question hits my mind : why wanting to shut down Akiko ? Isn't it like the blitter, doing nothing if not used directly ?
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02 March 2018, 11:37
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#9 | |
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Going nowhere
Join Date: Oct 2001
Location: United Kingdom
Age: 50
Posts: 9,017
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Quote:
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02 March 2018, 11:45
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#10 | |
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son of 68k
Join Date: Nov 2007
Location: Lyon / France
Age: 51
Posts: 5,355
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Quote:
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02 March 2018, 11:58
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#11 |
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WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,573
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Shutting down probably meaning disabling CD controller generated interrupts which can randomly keep coming depending on CD state.
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02 March 2018, 15:07
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#12 |
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This cat is no more
Join Date: Dec 2004
Location: FRANCE
Age: 52
Posts: 8,369
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not to mention infamous CIA-B level 6 interrupts as well ...
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02 March 2018, 15:27
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#13 | |
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WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,573
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Quote:
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