ERROR: Dalek Attack (Integer Divide By Zero)

Hungry Horace · 15 November 2007, 15:32

broken with newer WHDLoad, dodgy KGWHD pack, or me being dumb?

on my real 1200 it exits (ill find the error later) before starting the London level, and using the same setup (030, 24 fast) on winuae, the game doesnt even start up!! just a black screen.

just wanna confirm its not just me before reporting it properly with whdl dumps etc.

Retro-Nerd · 15 November 2007, 15:48

Quote:

on my real 1200 it exits (ill find the error later) before starting the London level, and using the same setup (030, 24 fast) on winuae, the game doesnt even start up!! just a black screen.

Yep, i can confirm it. Crashes with a "Integer Divide by Zero" message on my A1200, using the latest official WHDLoad.

Hungry Horace · 15 November 2007, 15:54

thanks, ill sort the bug-report out later

Hungry Horace · 10 December 2007, 02:14

right, this has been frustrating me for hours.

this isnt 030 related however. (that problem disappeared for me when i changed my a1200 HD over, so i never got the chance to get the memory dumps

very odd)

The KGWHD pre-installed Dalek Attack surely must be faulty, perhaps an unsupported IPF? (edit: nope!) There is a bug on the London (and probably later) level, whereby you cannot fire much of the time.

after messing with winaue configs for many hours, older whdloads, and tearing my hair out-no end, i eventually discovered that my previous copy of the game WHDload installed, did not have this problem!

edit: narrowed it down further, it seems the slaves ar differnet.. .i assume the difference is this:

Quote:

V1.1 (14-Jul-2006) - expansion memory usage, taglist fixed to work with WHDLoad v16.6

well the old slave obviously wont work on 16.8 and the new slave has the shooting bug thing!

no wonder i am going round in circles!

killergorilla · 18 December 2007, 01:05

Just tested this myself on my A1200 and I get the same integer divide by zero on on loading the london level.

I've tried it quite a few times with no luck so I'll be adding this to the official errors thread.

Zetr0 · 18 December 2007, 01:32

you know... its should be (integers divide by Zetr0)

it sounds a lot cooler

you know... i think i know where this problem stems from.... on the check routine... i read it a few years back .... damn .... oh well more beer will help...

well it will help me.... strange my spelling improves with alcohol... interesting...

I AM A POST WHORE

BoredSeal · 12 August 2008, 22:02

the "divide by zero" error is random, i was unable to remove it. game also randomly corrupts menu graphics at startup sometimes - also i haven't found why.

if you have some trouble with v1.1 update (because fast ram can be used as expmem now), use tooltype for whdload that blocks using FastRAM as _expmem and ChipRAM will be used - this could remove some weird errors.

Hungry Horace · 13 August 2008, 00:20

tbh, i cant remember if i ever resolved this.

add NoDivZero flag to the slave perhaps?

BoredSeal · 13 August 2008, 20:29

Quote:

Originally Posted by Hungry Horace

tbh, i cant remember if i ever resolved this.

add NoDivZero flag to the slave perhaps?

girv · 13 August 2008, 22:55

Bored, I've patched random arithmetic errors like this before by just checking the operands for validity before executing the instruction. It might take some experimenting to figure out what should happen when one of the operands is bad, but it's doable.

BoredSeal · 15 August 2008, 20:35

Hey guys, I updated Dalek Attack slightly. It will no longer use fast memory - problems with shooting and some display bugs are fixed with this update. When you will reach Divide by Zero error, I want .whdl_memory and .whdl_register, please

Hungry Horace · 18 August 2008, 01:11

V1.1 (12-Jul-2006) - this is still written in the slave you've linked to here Bored... are you sure that's the right slave file?

anyway, using that, i got the following error on the London level:

Quote:

Originally Posted by whdload error

Access Fault ($A008) PC = $1040 Long Write to $40957B3

i have sent .whdl_ files to you via PM.

BoredSeal · 18 August 2008, 18:58

Quote:

Originally Posted by Hungry Horace

V1.1 (12-Jul-2006) - this is still written in the slave you've linked to here Bored... are you sure that's the right slave file?

anyway, using that, i got the following error on the London level:

i have sent .whdl_ files to you via PM.

date doesn´t matter. i removed fast ram support, it caused shooting problem in London and other levels.

Hungry Horace · 18 August 2008, 19:01

Quote:

Originally Posted by BoredSeal

date doesn´t matter.

well it does if you (or i) want to be sure the right version is being tested!

BoredSeal · 21 August 2008, 21:46

ok, another update - access fault reported by Hungry Horace should be removed. I still wait for somebody to send me mentioned "divide by zero" bugreport and dumps or some more bugs

Hungry Horace · 25 August 2008, 16:04

still bugged - int div zero is back for me. i have sent dumps by PM.

thanks Bored.

BoredSeal · 04 September 2008, 20:57

another update: divide by zero error fixed.

Can you test please?

Hungry Horace · 20 September 2009, 18:58

Divide by zero error successfully exterminated on the version 1.2 slave

However, i've just been playing on e-uae/PS3, and encountered some strangeness with the score table.

I type my name in, screen when black (save with NOWRITECACHE on) , when it returned, the name was "fully populated" with trailing spaces. The cursor was still there and pressing 'return' simply made it save again.

pressing backspace created a whole-host of corrupt text weirdness. I was stuck in the score-entry system, unable to leave!

I use the whdload quit, and reloaded, my name was on the scoreboard ok.

Could someone please confirm for me is this is the slave or e-uae (or me) at fault? (testing on real amiga or winuae)

pre-installed version in the Zone for anyone kind enough

paranoid · 20 September 2009, 22:17

(as discussed on irc, same problem with WinUAE...)

15 November 2007, 15:32	#1
Hungry Horace Wipe-Out Enthusiast Join Date: Nov 2005 Location: . Age: 43 Posts: 2,538	ERROR: Dalek Attack (Integer Divide By Zero) broken with newer WHDLoad, dodgy KGWHD pack, or me being dumb? on my real 1200 it exits (ill find the error later) before starting the London level, and using the same setup (030, 24 fast) on winuae, the game doesnt even start up!! just a black screen. just wanna confirm its not just me before reporting it properly with whdl dumps etc.

15 August 2008, 20:35	#11
BoredSeal Registered User Join Date: Jun 2008 Location: Czech Republic Age: 45 Posts: 52	Dalek Attack update Hey guys, I updated Dalek Attack slightly. It will no longer use fast memory - problems with shooting and some display bugs are fixed with this update. When you will reach Divide by Zero error, I want .whdl_memory and .whdl_register, please Last edited by BoredSeal; 21 August 2008 at 21:39.

21 August 2008, 21:46	#15
BoredSeal Registered User Join Date: Jun 2008 Location: Czech Republic Age: 45 Posts: 52	new slave update ok, another update - access fault reported by Hungry Horace should be removed. I still wait for somebody to send me mentioned "divide by zero" bugreport and dumps or some more bugs Last edited by BoredSeal; 28 April 2009 at 20:22.

04 September 2008, 20:57	#17
BoredSeal Registered User Join Date: Jun 2008 Location: Czech Republic Age: 45 Posts: 52	divide by zero error fixed another update: divide by zero error fixed. Can you test please? Last edited by BoredSeal; 28 April 2009 at 20:22.

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15 November 2007, 15:54	#3
Hungry Horace Wipe-Out Enthusiast Join Date: Nov 2005 Location: . Age: 43 Posts: 2,538	thanks, ill sort the bug-report out later

18 December 2007, 01:05	#5
killergorilla Lesser Talent Join Date: Jan 2003 Location: UK Age: 42 Posts: 7,957	Just tested this myself on my A1200 and I get the same integer divide by zero on on loading the london level. I've tried it quite a few times with no luck so I'll be adding this to the official errors thread.

18 December 2007, 01:32	#6
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	you know... its should be (integers divide by Zetr0) it sounds a lot cooler you know... i think i know where this problem stems from.... on the check routine... i read it a few years back .... damn .... oh well more beer will help... well it will help me.... strange my spelling improves with alcohol... interesting... I AM A POST WHORE

12 August 2008, 22:02	#7
BoredSeal Registered User Join Date: Jun 2008 Location: Czech Republic Age: 45 Posts: 52	the "divide by zero" error is random, i was unable to remove it. game also randomly corrupts menu graphics at startup sometimes - also i haven't found why. if you have some trouble with v1.1 update (because fast ram can be used as expmem now), use tooltype for whdload that blocks using FastRAM as _expmem and ChipRAM will be used - this could remove some weird errors.

13 August 2008, 00:20	#8
Hungry Horace Wipe-Out Enthusiast Join Date: Nov 2005 Location: . Age: 43 Posts: 2,538	tbh, i cant remember if i ever resolved this. add NoDivZero flag to the slave perhaps?

13 August 2008, 22:55	#10
girv Mostly Harmless Join Date: Aug 2004 Location: Northern Ireland Posts: 1,109	Bored, I've patched random arithmetic errors like this before by just checking the operands for validity before executing the instruction. It might take some experimenting to figure out what should happen when one of the operands is bad, but it's doable.

25 August 2008, 16:04	#16
Hungry Horace Wipe-Out Enthusiast Join Date: Nov 2005 Location: . Age: 43 Posts: 2,538	still bugged - int div zero is back for me. i have sent dumps by PM. thanks Bored.

20 September 2009, 18:58	#18
Hungry Horace Wipe-Out Enthusiast Join Date: Nov 2005 Location: . Age: 43 Posts: 2,538	Divide by zero error successfully exterminated on the version 1.2 slave However, i've just been playing on e-uae/PS3, and encountered some strangeness with the score table. I type my name in, screen when black (save with NOWRITECACHE on) , when it returned, the name was "fully populated" with trailing spaces. The cursor was still there and pressing 'return' simply made it save again. pressing backspace created a whole-host of corrupt text weirdness. I was stuck in the score-entry system, unable to leave! I use the whdload quit, and reloaded, my name was on the scoreboard ok. Could someone please confirm for me is this is the slave or e-uae (or me) at fault? (testing on real amiga or winuae) pre-installed version in the Zone for anyone kind enough

20 September 2009, 22:17	#19
paranoid Phone Zen Join Date: Jun 2006 Location: Banned Age: 52 Posts: 234	(as discussed on irc, same problem with WinUAE...)

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