Hardware Access without Driver?Possible?

[JamesTKirk]

Zitat von nanix:

Drivers in delphi are just as good as one written in C.Sorry but its true!

I never doubted this. This is the reason I began the port of Free Pascal in the first place.

Zitat von nanix:

If you have any test things that you want me to test PM me.I got an x64 cpu.

My current plan is to test this with a x86 QEMU VM. I only need to get a x64 version of a 2003 or XP (as I'm a stundent I'm able to download this legally ). But I might come back to one, once the first tests are successful.

Zitat von nanix:

Its not that delphi can't make drivers.It can but its format won't link sys files.Thats we just use a makefile

This is not the REASON. The format of sys files is not different to that of "normal" Windows executable. The only real differences are the following:

• The subsystem field is set to PE_SUBSYSTEM_NATIVE (value 1)
• The file may only link to ntoskrnl.exe and hal.dll (and other drivers like ndis.sys)
• The checksum needs to be set
• The entry point must be different

The points 1, 3 and 4 can be done with external tools (my port only needs a tool for point 3), but the second point relies on a modified RTL that uses the correct functions.

You are using a makefile, because it simplifies all these things which force Delphi to produce device drivers. (this "forcing" is not meant in a negative way - don't get me wrong here)

Regards,
Sven