before the changes: cs:0062 33C0 xor ax,ax cs:0064 A25100 mov ,al cs:0067 A26100 mov ,al cs:006A A26200 mov ,al cs:006D 40 inc ax cs:006E A25000 mov ,al after the changes: cs:0062 Some programs use OVERLAY operations (OVR files), with which patched programs may not work correctly.All output is in an "international language" in order to make the program somewhat simpler for foreigners.As Topic locked 3 posts • Page 1 of 1 Fix "Error 200" (Divide by zero) - by Snover and Stiletto, with thanks to edelbeb by Snover » 2002-7-26 @ 00:40 If In the CRT.PAS file: 5.
DEC BX ; then force runtime error 200 @@3: MOV CX,55 XCHG DX,BX XCHG AX,SI DIV CX ; RTE 200, if result exceeds 48 bits MOV DelayCntH,AX MOV AX,BX DIV CX Defacto2 (CC) Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. Home EleBBS FAQ How to fix a Run Time Error 200 Run Time Error 200 (Divide by Zero) is usually caused by a bug Keep backups of the appropriate files! (and then some...) Programmers As a programmer you have several different options.
Here's an excerpt from the comp.lang.pascal.borland FAQ: Why do fast CPUs (Celeron, Pentium II and >200MHz) give problems with Crt.Delay? I have placed the file here. On looking inside these EXEs, we noticed some code which is similar to published versions of CRT.ASM, but not EXACTLY the same. This file-size is about 30k. (See Download Instructions).
Just click the sign up button to choose a username and then you can ask your own questions on the forum. More Information/Solution: This is a problem for any program written in Borland (Inprise) Turbo Pascal that is ran on a very fast computer (i.e. The ShortDelay procedure can do even shorter delays, though the procedure calling overhead will probably ruin the accuracy. Dosbox Runtime Error 200 Also, the need for this utility is quite small, and a duplicate name is probably of little concern.
The initialization part of the CRT unit has a calibration loop for the procedure DELAY. Dos Runtime Error 200 It is known as the CRT unit issue and can be fixed by applying a patch to the effected application. Technical details: A patched program will test if the computer is too fast. The bug was specifically in the CRT.ASM unit included with these compilers.
Once you have sucessfully uncompressed a compressed .EXE file, you should then be able to run PatchCRT on it to remove the RTE200 bug. This speed problem applies only on CPUs which match or exceed the speed of a Pentium 200 (approx), and applies only to some older versions of a specific software module named Remove the Delay procedure definitions, both in the interface and implementation section (lines 91 and 125). 6. Contact John Dailey Software with suggestions, comments or questions.
- But the programs patched with TPPATCH will never hang again because of the bug.
- If it works, you can probably re-compress the updated file, or just use the de-compressed version.
- This disclaimer is brought to you thanks to the BSA.
- QUESTIONC++ Guest Hi: I have some old .exe files that were developed during the MS-DOS era.
- If you need a delay routine you can use the one found in this document, you can create your own, or you can find another one somewhere on the web.
- It is possible to make a batch run TPPATCH on all executables on the hard disk, because TPPATCH does a bunch of tests with every file, so not a single wrong
- Stay logged in Welcome to PC Review!
Dos Runtime Error 200
When a file is patched, a new file (ex$) is created and the original EXE will then be overwritten (if desired).*** BE SURE TO MAKE BACKUPS OF ALL FILES YOU ARE The following two NOT instructions negate the value of the counter and divide it then by 55. (37h=55d) The result is saved in a variable (here [005C]) und is used by Tp7p5fix Otherwise you can run the application in DOSBox which can artificially slow down the speed of the emulated DOS session. Freedos Runtime Error 200 In the patched versions the delay procedure will use a 32 bit counter similar as in newdelay but without the nice idle behaviour.
First of all you can disable the delay-routine completely. I'd suggest keeping PatchCRT.exe in your path, so that you can run it from any directory simply by typing it followed by the name of the .EXE to be patched. Running in pure DOS mode with SmartDrive (if possible) will also increase analysation speed.If ctbppat finds an executable made with Borland Pascal 7.0, it will examine the file further to determine additional feature: disables all other interrupts during delay initialization to make initialization more reliable. Patchcrt
Which is another way of saying - TEST your app carefully, if PatchCRT patches it !!. bppatch.zip Solution by German computer magazine c't July 97 page 232. This bug causes a runtime error 200 when the startup code of Delay() is executed. Related Articles: None Article ID:220-0001 Last Reviwed:06/01/2001 Get Dungeon Master FREE!Create a game for Dungeon Master and get a free registration for both the game and construction set.
It's a mistake Borland made. Snover l33t++ Posts: 5207Joined: 2002-6-30 @ 04:47 Top Re: Fix "Error 200" (Divide by zero) - by Snover and Stiletto (updated!) by eL_PuSHeR » 2005-4-13 @ 20:13 I hope Snover Note: we've seen a few EXE files with the 200 error, but which PatchCRT, up to ver 1.5, would not adjust.
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Technical Details of RTL patch: implements a 32 bit counter with somewhat different code than the other solutions, presumably to make it more relibable. PatchCRT does not include any de-compression code, and therefore will not repair compressed EXE files. His newsgroup posting is available from ftp://garbo.uwasa.fi/pc/turbopa7/tfix.zip
This counter has an overflow on high speed cpu's, including Pentium II 266 Mhz and faster. NewDelay.pas unit with delay replacement and error trap (maybe newer version available here) This unit comes as pascal source. Use: In your program sources include this unit first, crt second, then all other units and then recompile your programs. Sign Up Now!
Most likely, these old .exe files were compiled with Borland Turbo Pascal 7, which had a bug that caused Runtime 200 errors when they were run on a PC faster than PKUNZIP TurboPascal-Unpack.zip C:\TPATCH PKUNZIP crtfix16.zip C:\TPATCH In our example we are going to patch defacto.exe which is the binary from an early Defacto magazine that suffers from this bug. Reload to refresh your session. The preferred solution is to use an updated version of CRT.ASM, or to contact the software developer, and request that an updated CRT.ASM be used to re-build the app/utility.
Runtime Error 200 - Divide by 0 ...immediately upon startup of a program created with these compilers when run on a Pentium-class computer faster than about 180mhz. Some (earlier?) compiler versions mysteriously seem to go free of this bug - Delphi doesn't have them, for instance, and Turbo Pascal 6 seems to work too. Please note: I take no responsibility for the potential damage people may do to their RTL's, working programs or vital data while using the instructions in this document.