Need to convert masm32 to dos32 djgpp library

[Lassar]

I am doing a program for dosbox in mobile devices.

I am wanting to port pnglib masm32 assembly code to freebasic dos32 lib.

I am thinking of making stub routines for the windows routines.

Am I right in thinking that kernel32.inc, and user32.inc only has procedure definitions in it?

That the only include file, I would need to use is windows.inc?

Here are the windows routines used.

Code Select Expand

GetProcessHeap PROTO STDCALL
HeapAlloc PROTO STDCALL :DWORD,:DWORD,:DWORD
HeapFree PROTO STDCALL :DWORD,:DWORD,:DWORD

CreateFile PROTO STDCALL :DWORD,:DWORD,:DWORD,:DWORD,:DWORD,:DWORD,:DWORD
GetFileSize PROTO STDCALL :DWORD,:DWORD
ReadFile PROTO STDCALL :DWORD,:DWORD,:DWORD,:DWORD,:DWORD
CloseHandle PROTO STDCALL :DWORD
GetLastError PROTO STDCALL[code]


I am thinking of using freebasic to create the stubs.

Any suggestions?

[dedndave]

i think it uses OLE
also - not too sure about license/copyright issues
good luck with that   :P

what you might do is browse through the code and learn how it works
then, try to apply a similar technique in freebasic dos32

[Vortex]

Hi Lassar,

JWasm is providing an option for djgpp :

Various output formats are supported:

    format     option     comment
    -----------------------------------------------------------------------
    OMF        -omf       (default) object format, 16- and 32-bit supported
    BIN        -bin       plain binary format (boot sector, BIOS, DOS COM)
    COFF       -coff      MS Win32 object format
    WIN64      -win64     MS Win64 object format
    MZ         -mz        DOS native binary format (.EXE)
    PE         -pe        Win32/Win64 PE binary format
    ELF32      -elf       Linux 32-bit object format
    ELF64      -elf64     Linux 64-bit object format
    DJGPP      -djgpp     Djgpp's 32-bit COFF variant (optional).

http://www.japheth.de/JWasm/Readme.html

[Lassar]

I think JWasm supporting Djgpp is a myth. You have to recompile it to get the DJGPP support.

I got brave and tried to compile it, and got this error.

fixup.c(218): Error! E1031: Name 'header_format' not found in struct/union modul
e_info
Error(E42): Last command making (Release\fixup.obj) returned a bad status
Error(E02): Make execution terminated

[Vortex]

I think JWasm supporting Djgpp is a myth.

It's not a myth. If there is a compilation error, you should contact Japheth.