DOS ain't dead

FPC 2.6.4 released! (Announce)

posted by Rugxulo , Usono, 06.04.2014, 02:13

> > I'm atop Win64 right now and just tested a simple hello world with
> latest
> > Tiny snapshot.
> >
> > ppcross8086 -XX hello -oa.exe
> > ppcross8086 -XX -WmTiny hello -ob.exe
> >
> > Here's what DOSBox says:
> >
> > C:\TMP\BLA>a
> > Hello, world!
> > Nil pointer assignment
> >
> > C:\TMP\BLA>b
> > Hello, world!
>
> Strange, it doesn't happen on my machine. I'm using linux (x86_64),
> openwatcom 1.9, nasm 2.10.07 and dosbox and it works fine. How did you
> build the snapshot?

I didn't build FPC at all, just grabbed the precompiled Win32 build from FPC's FTP. So somebody is building these regularly, but it isn't me! That's half the point, that I'm testing their builds, not mine.

I don't think the other details matter here, but I've got OW 1.9, NASM 2.11, DOSBox 0.74.

> > In short, we should probably always explicitly specify a memory model
> when
> > compiling. Maybe it should error out if none is specified by default.
>
> The default memory model is 'small'. There are also some flags in the .ppu
> header which indicates for which memory model the given unit was built. But
> it doesn't matter for small and tiny, because the .ppus are compatible and
> these flags are identical in those two memory models. The only difference
> is the startup code - prt0s.o is for small, while prt0t.o is for tiny. The
> appropriate one is chosen by the compiler and put in the linker script
> according to the -Wm option.

Dunno, too many memory models, so it's very easy to be confused (at least for me).

The only reason I bothered with "Tiny" in these cases is because that's what MarcoV used when originally (re)compiling FPCTRIS, and I wanted to be byte-exact to his version (though too much has changed since then for that to stay the same anyways). I guess from now on I'll stick to "Small".

Complete thread:

• FPC 2.6.4 released! - marcov, 15.03.2014, 21:55 (Announce)
  • FPC 2.6.4 released! - ron, 15.03.2014, 23:27
    • FPC 2.6.4 released! - Rugxulo, 17.03.2014, 08:14
  • FPC 2.6.4 released! - Rugxulo, 17.03.2014, 08:39
    • FPC 2.6.4 released! - marcov, 17.03.2014, 09:54
      • FPC 2.6.4 released! - Rugxulo, 19.03.2014, 11:48
        • FPC 2.6.4 released! - marcov, 19.03.2014, 21:28
          • FPC 2.6.4 released! - Rugxulo, 20.03.2014, 04:24
            • FPC 2.6.4 released! - Rugxulo, 23.03.2014, 06:33
              • FPC 2.6.4 released! - Rugxulo, 23.03.2014, 10:50
                • FPC 2.6.4 released! - Rugxulo, 22.04.2014, 02:18
                  • FPC 2.6.4 released! - marcov, 30.04.2014, 20:42
                    • FPC 2.6.4 released! - Rugxulo, 08.05.2014, 00:18
              • FPC 2.6.4 released! - nickysn, 03.04.2014, 13:51
                • FPC 2.6.4 released! - Rugxulo, 05.04.2014, 23:55
                  • FPC 2.6.4 released! - nickysn, 06.04.2014, 00:26
                    • FPC 2.6.4 released! - Rugxulo, 06.04.2014, 02:13
                      • FPC 2.6.4 released! - nickysn, 06.04.2014, 11:21
                        • FPC 2.6.4 released! - nickysn, 08.04.2014, 17:17
                          • FPC 2.6.4 released! - nickysn, 10.04.2014, 18:37
            • FPC 2.6.4 released! - Rugxulo, 30.03.2014, 10:08
              • FPC 2.6.4 released! - marcov, 30.03.2014, 12:14
                • FPC 2.6.4 released! - Rugxulo, 06.04.2014, 00:14