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Re: Coding help

Posted on 2021-01-02, 15:05

Excellent feedback! Thanks! To expand on what I'm doing, I am writing a version control utility to ensure my applications are ran together within the same application suite. This gives me some control over the expected functions of a given application within the application suite. So, for example, …

Re: When did you purchase your first 386 / 486 Computer? Availability vs the early 90's affordability norm.

Posted on 2021-01-01, 00:24

My first 486 also happens to be my first computer. Coming from a poor family that viewed computers as expensive toys - and as devices that were taking my parent's jobs away, they weren't exactly encouraging of my soon-to-be hobby. At any rate, I bought my 486 in 1992. It came with a 486SX 25MHz CPU …

Re: Coding help

Posted on 2021-01-01, 00:07

Ok, so I think I'm getting the hang of this old school coding. I'm still having some problems using some of the C++ standards in the STLport for the DIgital Mars compiler, such as string and cout (lots of errors about bad header references in the iostream.h file). And I'm still trying to wrap my …

Re: Coding help

Posted on 2020-12-19, 05:12

Thanks for the links! Seems a bit overly complicated for the array of strings. I have a method I like to use that looks like this: string FormatBytes(long bytes) { string[] Suffix = { "Bytes", "KB", "MB", "GB", "TB" }; int i; double dblByte = bytes; for (i = 0; i < Suffix.Length && bytes >= 1024, …

Coding help

Posted on 2020-12-18, 02:09

Hi all, I recently got my legacy coding machine up and running. I was using Symantec C++ but downloaded Digital Mars C++ and the STL hoping it would support modern C++ standards. However, I can't seem to use modern types like string, or string arrays. It seems like legacy coding is much more C-like …

Re: Currently recommended C compiler for native DOS?

Posted on 2020-12-15, 23:13

in DOS
I'm currently trying to rewrite my compiled .BAT files into C/C++ code and applications. I'm mostly using Symantec C++ 7.21 but I also have a copy of Microsoft Visual C++ 1.52. Both have options to create MS-DOS applications. Any emulator worth its weight should be emulating the real thing, so just …

Re: Missing conventional memory

Posted on 2020-12-11, 20:07

Thank you for providing those screenshots. Run the Microsoft Diagnostics (MSD.EXE) and take a look at the memory map. Does it say anything is using the first 8K or the last 8K in the conventional memory area? Another tool that may be helpful if you can get it is the Quarterdeck Manifest diagnostics …

Re: Missing conventional memory

Posted on 2020-12-11, 17:32

Is that 631K total? Or 631k available? DOS itself needs memory to run, which includes IO.SYS and MSDOS.SYS, as well as the command interpreter. A plain install will not be loading DOS into the HMA, so it must be loaded low into the 640K area. Use MEM /C /P to see a breakdown of what is consuming …

Re: Missing conventional memory

Posted on 2020-12-11, 16:56

Is that 631K total? Or 631k available? DOS itself needs memory to run, which includes IO.SYS and MSDOS.SYS, as well as the command interpreter. A plain install will not be loading DOS into the HMA, so it must be loaded low into the 640K area. Use MEM /C /P to see a breakdown of what is consuming …

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