WHDLoad MantisBT - Cult_PublicAttack |
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| ID | Project | Category | View Status | Date Submitted | Last Update |
| 0003722 | Cult_PublicAttack | [All Projects] General | public | 2017-09-04 22:54 | 2018-10-12 12:43 |
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| Reporter | Wepl | |
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| Assigned To | StingRay | |
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| Priority | normal | Severity | minor | Reproducibility | always |
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| Status | closed | Resolution | fixed | |
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| Platform | | OS | | OS Version | |
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| Product Version | | |
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| Target Version | | Fixed in Version | | |
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| Machine | A4000 |
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| CPU | 68060 + PPC |
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| CPUSpeed | 60 |
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| ChipSet | AGA |
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| GFXCard | CyberVision 64/3D |
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| ChipMem | 2 MB |
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| FastMem | 144 MB |
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| Workbench | OS 3.9 |
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| KickROM | 40 - Kick 3.1 |
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| KickSoft | Selfmade |
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| WHDLoad | 18.4beta |
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| imported | yes |
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| Summary | 0003722: demo hangs after the cult logo, no quit key or other keys works, nocache/snoop |
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| Description | GameVersion: download link
SlaveVersion: only one
demo hangs after the cult logo, no quit key or other keys works, nocache/snoop doesn't help, sound plays sample endless |
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| Tags | No tags attached. |
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| Relationships | |
| Attached Files |  PublicAttack_Ack.slave (1,416) 2017-09-11 13:31
http://mantis.whdload.de/file_download.php?file_id=565&type=bug
PublicAttack_Int.slave (1,424) 2017-09-11 13:32
http://mantis.whdload.de/file_download.php?file_id=566&type=bug
PublicAttackNoPart1.slave (1,428) 2017-09-12 23:35
http://mantis.whdload.de/file_download.php?file_id=567&type=bug
PublicAttackNoLev6.slave (1,424) 2017-09-13 15:27
http://mantis.whdload.de/file_download.php?file_id=568&type=bug
PublicAttackRelStack.slave (1,436) 2017-09-13 21:08
http://mantis.whdload.de/file_download.php?file_id=569&type=bug
PublicAttack_RelStack2.slave (1,436) 2017-09-14 07:32
http://mantis.whdload.de/file_download.php?file_id=570&type=bug
PublicAttack_SPBase.slave (1,428) 2017-09-15 15:05
http://mantis.whdload.de/file_download.php?file_id=571&type=bug |
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Notes |
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I have no possibility to test right now but I guess this is an interrupt related problem. Try the 2 attached slaves, do they still have the same problem? |
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(0005741)
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Wepl
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2017-09-12 21:31
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Tested both Slaves. No difference, hangs after Cult logo.
Maybe you can change the code so that keyboard interrupt still works to allow a dump? |
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Level 2/keyboard interrupt is enabled all the time. There must be something seriously wrong somewhere. I'll see if I can find the reason. |
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I have attached a slave which skips the logo part (demo waits for raster line 311 in that part which could be possible reason for freezing), does the rest of the demo work? |
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(0005746)
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Wepl
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2017-09-13 01:04
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It works until the sine scroller, where it hangs the same way. Plasma effect before is working. |
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OK, so the raster line wait is not the problem as it's the same in all of these parts. I'll have to dig deeper as this is really strange. My bet is still on interrupt/timing problem though. |
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Attached is another slave with disabled NoisePacker replayer which in turn means: no level 6 interrupts. Does the problem still occur? |
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(0005751)
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Wepl
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2017-09-13 20:03
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It's the same with this Slave.
If there is a problem with stack (double bus fault), it would maybe help to increase BaseMem and set the SP to the end of BaseMem? |
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I can try that (currently stack is set to low mem) but I doubt it fixes the problem as then the demo shouldn't just freeze but crash completely. Worth checking though. |
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Slave attached which uses ext. mem for USP and SSP, any difference? |
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(0005754)
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Wepl
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2017-09-14 00:47
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No difference.
I made a dump at the Cult logo, SSP is stiil at $7f8?! |
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Indeed, I didn't set ExpMem correctly in the slave header, sorry. Has been fixed, USP/SSP are definitely in ExpMem now (I checked), any difference now? |
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(0005758)
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Wepl
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2017-09-14 23:49
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It still freezes.
I don't understand why you have moved the stack to Exp. If due a problem the stack usage increases a lot and causes a double bus fault when it leaves the allowed ram, this will happen in ExpMem the same like on address 0. I suggested to put it at the end of BaseMem. Then it will probably overwrite the own code which may end in fault detectable by WHDLoad.
But maybe it is also a different problem.. |
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End of base mem doesn't work as demo accesses the whole chip mem! Which was the reason that I moved it down to low mem at $1000.w initially. And as I already said, I doubt the stack location is the problem as then then demo should crash instead of freeze. My guess is still interrupt/timing problem.
I'll inspect the code some more, seeing that the plasma part does not freeze there's at least something I can work with. |
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To rule out the stack pointer as cause of the problem I have attached a new slave which uses stack set to end of BaseMem. I've only adapted the code for the first part so demo will definitely crash in later parts. If it doesn't freeze anymore in the logo part that is. |
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(0005762)
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Wepl
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2017-09-16 11:22
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The new Slave hangs the same way. Sorry. |
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I assume that the slave runs always in supervisor mode, maybe in user mode (with different location for usp and ssp) could help...just an idea. |
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I finally got around to trying Psygore's suggestion and what can I say? Thanks Psygore, your hint regarding running the demo in user mode was spot on, it fixed the problem. Thanks. :) |
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You are welcome StingRay :)
Happy holidays :) |
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