Stack Overflow
Stack Overflow

Questions tagged [djgpp]

DJGPP is a complete 32-bit C/C++ development system for Intel 80386 (and higher) PCs running DOS.

33 questions
9
votes
1 answer

Throwing C++ exceptions from a hardware exception handler. Why does -fnon-call-exceptions not behave as expected?

I had this funny idea last night, to trap hardware exceptions and throw a C++ exception instead. Thought that might be useful for things like FPU exceptions, which normally either crash, or silently return NaN and then cause unexpected behaviour. A…
user5434231
  • 579
  • 3
  • 16
9
votes
1 answer

Drawing a character in VGA memory with GNU C inline assembly

I´m learning to do some low level VGA programming in DOS with C and inline assembly. Right now I´m trying to create a function that prints out a character on screen. This is my code: //This is the characters BITMAPS uint8_t characters[464] = { …
Pablo Estrada
  • 3,182
  • 4
  • 30
  • 74
6
votes
3 answers

Need C compiler for Windows 7 64-bit, to compile to DOS target

I'm trying to find a solution to allow me to compile C code to a DOS executable from Windows 7 64-bit. I recently updated from XP 32-bit to Win7 64-bit, and now my Borland C++ 5.0 compiler won't work. I get an error when it tries to call tlink.exe…
robisrob
  • 940
  • 12
  • 23
3
votes
3 answers

How to install DJGPP

I am brand new to C and programming. I would like to use DJGPP as my compiler at this point. How can I install it? From what I understand it is multiple files. I cant seem to find a site that actually has the files that has working links. Thank…
Josiah
  • 83
  • 1
  • 5
3
votes
1 answer

Protected Hardware Interrupt Handler Stuck? (DJGPP)

I'm trying to set up a hardware interrupt handler in protected mode, using djgpp-2 for compiling in dosbox-0.74. Here's the smallest code possible (timer interrupt), I guess: #include #include #include unsigned int…
tobywoby
  • 85
  • 5
3
votes
0 answers

Is it really necessary to lock all memory that might be touched in an interrupt handler?

Every resource I read about DPMI and interrupts says that all memory (code/data/stack) that might be used in an interrupt handler should be locked (aka pinned), to make sure it won't be paged out. The idea behind this is that when a page fault…
user5434231
  • 579
  • 3
  • 16
3
votes
3 answers

Compiling Assembly code

I'm trying to compile an ASM program I wrote with NASM and the "ld" command from DJGPP. This is the code for the batch file I'm using to compiling it: @echo off set path=C:\NASM;%PATH% nasm -f aout -o start.o start.asm ld -T link.ld -o kernel.bin…
Greg Treleaven
  • 8,124
  • 7
  • 30
  • 30
3
votes
3 answers

C(++) Compiler Transition - Make DJGPP go away please

I'm working on writing a kernel, and I have a few friends working with me on the project. We've been using DJGPP to compile the project for a while, but we're having some cross-platform compatibility issues with compiling this way that have left my…
Blank
  • 7,088
  • 12
  • 49
  • 69
2
votes
1 answer

Porting kernel project from DJGPP to MinGW

Trying to compile a C++ kernel project with MinGW & NASM (formerly DJGPP & NASM). Have actually tried Cygwin too, with the exact same results below: First, just swapped out \DJGPP\bin for \MinGW\bin. Got the following link error: target coff-go32…
Unsigned
  • 9,640
  • 4
  • 43
  • 72
2
votes
1 answer

GCC cross compiler for DOS produces linker errors for simple "Hello world!" in C

I've tried to configure GCC 9.3.0 to produce executable files for DOS. However, for a simple "Hello world!" program in C, it outputs: /home/teo.samarzija/djgpp-9.3.0/lib/gcc/djgpp/9.3.0/../../../../djgpp/bin/ld:…
FlatAssembler
  • 667
  • 7
  • 30
2
votes
2 answers

FreeDOS + RHIDE (DJGPP environment) = DOS Memory Corruption?

I'm running a virtual machine (using Oracle VM VirtualBox) with FreeDOS installed. After I enter the DJGPP IDE (called "RHIDE") and run an application once, I can no longer run anything, and when I exit the IDE, I get a message saying "dos mem…
Kyre
  • 143
  • 2
  • 7
2
votes
1 answer

Waiting in DOS using djgpp -- alternatives to busy wait?

I recently wrote a little curses game and as all it needs to work is some timer mechanism and a curses implementation, the idea to try building it for DOS comes kind of naturally. Curses is provided by pdcurses for DOS. Timing is already different…
user2371524
2
votes
1 answer

Opening generic files with system() in DJGPP C

I'm missing something obvious here. I am using the DJGPP C compiler. I can successfully open executables, but not files in their default programs. #include int main(void) { char sys_cmd[100] = "C:\\WINDOWS\\system32\\Calc.exe"; …
user1228123
  • 424
  • 4
  • 15
2
votes
2 answers

Non-interactive drive listing in DOS

I'm trying to get a list of all available drives from a C program in DOS (and I don't mean the Windows command prompt, I mean actual DOS 6.0) using the DJGPP C compiler. I can't find an API to do this directly, so I'm just looping through the drives…
Daisy Leigh Brenecki
  • 7,571
  • 6
  • 28
  • 43
2
votes
2 answers

How to enable the mouse in C++ program under DOS using DJGPP?

I've been using DJGPP for the first time recently and can't seem to enable mouse support. What's the best way? Thanks for any help.
Galwegian
  • 41,475
  • 16
  • 112
  • 158
1
2 3