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中国DOS联盟论坛 » DOS开发编程 & 发展交流 （开发室） » Are there any DJGPP programming experts? Please help take a look. View 1,223　Replies 10
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Original Poster Posted 2003-06-08 00:00　·　 中国 陕西 西安 教育网
savling
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Recently I used DJGPP to write a fairly large graphics program. Everything is normal when it first runs (including floating-point operations), but after it runs for a while, an exception occurs saying the coprocessor cannot be accessed. The runtime before the exception is not fixed, but when the exception occurs, the IP value is always the same. When the program terminates, it shows that both the CS and SS selectors are invalid.
Machine specs: CPU: Cyrix MMX-S 233
Memory: 128M
Hard disk (electronic disk): 32M
Could some expert help analyze what the problem is? I've been struggling with it for nearly a month and still have no clue at all.

3X


Floor 2 Posted 2003-06-08 00:00　·　 中国 台湾 远传电信
Dark-Destroy
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How about trying an Intel processor instead~
MSN：tiqit2@hotmail.com
Floor 3 Posted 2003-06-08 00:00　·　 中国 陕西 西安 教育网
savling
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Hehe, since the product has already been finalized, changing the processor is basically impossible.

Is there any other way?
Floor 4 Posted 2003-06-08 00:00　·　 中国 江西 吉安 电信
ko20010214
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Just this much (brief) information? Even if others want to help, they can't.
ko20010214
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大功告成，打个Kiss!
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Floor 5 Posted 2003-06-08 00:00　·　 美国 肯塔基州 费耶特县 列克星敦 Charter_Communications
Wengier
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Please explain it in more detail.
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Floor 6 Posted 2003-06-08 00:00　·　 中国 陕西 西安 教育网
savling
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Floor 7 Posted 2003-06-09 00:00　·　 中国 陕西 西安 教育网
savling
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The detailed information is above, please help take a look.

Thanks!
Floor 8 Posted 2003-06-09 00:00　·　 美国 肯塔基州 费耶特县 列克星敦 Charter_Communications
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There are two possibilities:

1: There may be some errors in the program itself;
2: The DJGPP version being used is too old, you can try updating it.
Wengier - 新DOS时代

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Floor 9 Posted 2003-06-09 00:00　·　 中国 陕西 西安 教育网
savling
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1, The program runs without any problem on a PII350 machine; I don't know whether this can rule out a problem with the program itself;
2, The DJGPP version I'm using is 2.01. I don't know what the latest version is, or where to download it?
Floor 10 Posted 2003-06-09 00:00　·　 美国 肯塔基州 费耶特县 列克星敦 Charter_Communications
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Download the latest version of DJGPP here:
http://www.delorie.com/djgpp/
Wengier - 新DOS时代

欢迎大家来到我的“新DOS时代”网站，里面有各类DOS软件和资料，地址：
http://wendos.mycool.net/

E-Mail & MSN: wengierwu AT hotmail.com （最近比较忙，有事请联系DOSroot和雨露，谢谢！）

Floor 11 Posted 2006-02-18 10:17　·　 中国 广东 佛山 禅城区 电信
fsblm
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It may be that you are repeatedly calling the graphics-reading function, causing a memory overflow.
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