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Messages - llm

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1
Stunts Reverse Engineering / Re: first alpha version of StuntsVM is ready
« on: October 04, 2015, 02:52:18 PM »
StuntsVM is much slower compared to DosBox (or better said inaccurate) - because of the missing dynamic core - could it be that stunts got these errors if the environment is too slow?

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it seems that fake86 already got that problem

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so what are exactly the steps (1.,2.,3.) i need to take to see the "bug" - reproduceable for both replays

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reproducing them in an actual Windows system

so what was your compare system - linux/dosbox, a real dos-machine?

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Very minor issue: files with names longer than 8 characters are ignored

my DOS-File-API emulation does not support long filenames - easier to implement

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More significantly: the physics do not seem to be 100% faithful yet. Both Gutix's ZCT070 replay and Akoss' ZCT168 one fail to complete. In the former, the car crashes at various points, depending on how much you rewind it, while in the latter the car is oddly deflected rightwards while climbing a hill at ~34s. Those issues should probably be confirmed by reproducing them in an actual Windows system

thats bad - can you attach the replays so i can compare real DOS/dosbox and stuntsvm? maybe the hardware timer isn't correctly programmed

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Stunts Reverse Engineering / first alpha version of StuntsVM is ready
« on: August 13, 2015, 08:26:48 PM »
its some sort of Dosbox but based on Fake86 (http://sourceforge.net/projects/fake86/) and only able to emulate the environment enought to run stunts

the zip contains 3 files

game_pc.exe - the 16bit dos game, build with clvn's execombiner and my own sound driver integration tool for pc-speaker sound
stuntsvm.exe - executes/emulates game_pc.exe
SDL.dll - for Keyboard/Mouse/Gfx (https://www.libsdl.org/)

copy these into your stunts directory (where the tracks, sound and others files are - but make a backup before) and run stuntsvm.exe

what can you do with stuntsvm - test and play - for me its the base of my statical recompilation ideas for stunts




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it seems to be related to free memory or something

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i've installed stunts under

latest fake86 (http://sourceforge.net/projects/fake86)
DosBox 0.74 (dosbox.com)
VMWare Player 7 + MsDos 6.22

and i've get different start positions when just starting the game and fo directly to race

fake86/VMWare showing equal start screen, dosbox a different

why is that - is it a bug?

9
Stunts Reverse Engineering / Re: bypassing load.exe
« on: May 01, 2015, 07:42:38 AM »
FYI: i've developed a small tool that integrates the adlib sound-driver into the combined/cracked exe - so no dynamic code loading

latest version is attached a the end of this thread

http://forum.stunts.hu/index.php?topic=3019.15


10
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: May 01, 2015, 07:40:45 AM »
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Did you solve the DosBox debugging issue?

yupp - ripsaw8080 patch works in realmode (but not in pmode) - but stunts is realmode so no problem

attached is my current version of the sound-integration tool

11
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: April 20, 2014, 08:18:13 AM »
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Question: Can I use Zapper's engine sounds with this .exe file and how I can change the sound options while setup.exe is gone?

you can't change the sound device due to the adlib/sdblaster driver integration - what other sound options?

12
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: March 31, 2014, 10:56:33 AM »
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Your future plans are...?

(0. get more time)

1.build a simple emulator: my idea is to reduce http://sourceforge.net/projects/fake86/ down to stunts needs and
grab most of the fake assembler functions from this real-mode and 16bit only and well tested codebase

2. try to replace parts of the emulated code with real code - hope that is easy copy&paste

remove more and more of the emulated code - until finished



13
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: March 27, 2014, 11:10:20 AM »
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I think I did. This crashes were so random that game_drv.exe seems to be not responsible.
About the graphics - the same thing happens with the original files also with game_drv.exe when nothing is deleted... Strange game

so i get it right that game_drv.exe is as buggy as the original - or?

14
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: March 27, 2014, 06:33:59 AM »
very unexpected errors :)

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1. The game does not remember the options in Graphic Levels - FULL,
Slow video mgmt ON, Fast simulation speed.

that could be maybe a problem with missing files - does that also happen with an full-install with just added game_drv.exe

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2. The game seems to be stable but for some reason from time to time it crashes when I'm on the track (DEFAULT) and pressing Esc at the same time.

my only idea is that dosbox can be responsible for the problem - stunts crashes for example more often when using the haevydebug version of dosbox

did you saw anything like that ever with the normal stunts executable?


15
Stunts Reverse Engineering / Re: sound driver integration DONE
« on: March 25, 2014, 06:32:25 AM »
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I can test this, it's not a big deal


does the game_drv.exe run fine?

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but I can not do other useful stuff for this project.

testing is always the biggest thing to do :)

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