Missing link for Basilisk I found

Actually I held onto this, as I wanted to do something crazy for that Marchintosh thing but life got in the way it fell by the wayside, and well now it’s September, and I already have a Qemu instance running A/UX so my ‘at best’ hope of Basilisk II with MMU emulation is all but moot.

Captain, oh Captain!

While it may look like 2 very old emulators, which they are, the interesting thing here is that this old version of Basilisk that only has Macintosh Classic emulation is using the 68000 emulation core from UAE 0.6.8. It took a lot of downloading stuff, a lot of other nonsense, but I eventually found it, and was able to diff around to find the changes made were rather inconsequential, there by letting me rebuild UAE back on top of Basilisk.

My plan had been to either use far newer UAE cpu core, say from Previous as it has working MMU support, or Musashi.

I was building hard coded for TDM GCC 5.1.0 on MinGW. It doesn’t matter anymore but I threw it up on github since that is where all the cool kids are.

https://github.com/neozeed/basilisk-uae-merge

It’s absolutely pointless I guess, but maybe someone will find it interesting.

As reported a few days ago the Windows patches for FreeDOS were committed!..

a couple of weeks ago.

This will be the perfect follow up to the aptly named previous post FreeDOS running Windows 3.1.

I’ve haven’t built the FreeDOS kernel in a while and I have to say it’s pretty easy. I’m taking the easy way out here, so I’m using OpenWatcom v2, because I figured the tools should be both at least Win32/Win64 and halfway up to date. Don’t get me wrong, MS-DOS Player is a fantastic app but I don’t want to lean on it for 100% of the build.

I configured it for something in my mind generic with the following flags:

build fat16 wc 86 win

Naturally it had issues with 3 executables, two of which are generated as the project builds, and I just did some silliness to have MS-DOS player make ‘native’ versions:

patchobj.com: patchobj.c
        $(CLT) $(CFLAGS) patchobj.c
        msdos -cobj.exe patchobj.com
        -rm -f patchobj.com
        -ren obj.exe patchobj.exe

exeflat.exe: exeflat.c ../hdr/exe.h
        $(CLC) $(CFLAGS) exeflat.c
        msdos -cxeflat.exe exeflat.exe
        -rm -f exeflat.exe
        -ren xeflat.exe exeflat.exe

The same went for sys\bin2c.exe but it’s not rebuilt every time so it doesn’t matter.

And with that in hand it boots. YAY

And now for some absolutely unfair testing. Before anyone complains, yes this is absolutely unfair I mean hell if you bought Windows 3.1 in 2021, I guess get OS/2 or just keep digging at the yard sale and get MS-DOS. Anyways here we go:

Whoopsies!

Turning off InDOSPolling gives this lovely crash. Naturally then it’s still required.

My go-to test, Running Infocom/FASA BattleTech Crescent Hawk’s Inception in CGA mode in a Window hard locks the VM before anything is drawn to screen. Bummer. And that is pretty much the story of FreeDOS under Windows on this build. Again it’s 2021 who even needs Microsoft VDMs?

That said there must be some weird hook in MS-DOS that Win32s relies on. Just like before Win32s fails to run.

The holy trinity of ‘bad’ Windows 3.0 games, Sim City, Sim Earth and Sim Life work just as they did in the prior version, with Sim Earth instantly quitting. Not sure what is going on there. It does launch with virtual memory enabled, but then proceeds to corrupt all the file handles and Program Manager loses it’s mind. In the productivity front Excel v3, and Microsoft Word v2 run fine. Yay!

Windows 3.1 is serious business!

So in conclusion doing Win16 things in Windows 3.1 is seemingly fine.

AMD64 Pinball extravaganza!

With all the talk of 64bit versions of Pinball I thought I’d share simple script to extract Pinball from an XP x64 CD-ROM so you can take it with you. It’s portable so thats nice too, although it doesn’t use any wad/pak/zip files so all the assets are loose files:

expand f:\amd64\font.da_ font.dat
expand f:\amd64\pinball.da_ pinball.dat
expand f:\amd64\pinball.ex_ pinball.exe
expand f:\amd64\pinball.in_ pinball.inf
expand f:\amd64\pinball.mi_ pinball.mid
expand f:\amd64\pinball2.mi_ pinball2.mid
expand f:\amd64\sound1.wa_ sound1.wav
expand f:\amd64\sound104.wa_ sound104.wav
expand f:\amd64\sound105.wa_ sound105.wav
expand f:\amd64\sound108.wa_ sound108.wav
expand f:\amd64\sound111.wa_ sound111.wav
expand f:\amd64\sound112.wa_ sound112.wav
expand f:\amd64\sound12.wa_ sound12.wav
expand f:\amd64\sound13.wa_ sound13.wav
expand f:\amd64\sound131.wa_ sound131.wav
expand f:\amd64\sound136.wa_ sound136.wav
expand f:\amd64\sound14.wa_ sound14.wav
expand f:\amd64\sound16.wa_ sound16.wav
expand f:\amd64\sound17.wa_ sound17.wav
expand f:\amd64\sound18.wa_ sound18.wav
expand f:\amd64\sound181.wa_ sound181.wav
expand f:\amd64\sound19.wa_ sound19.wav
expand f:\amd64\sound20.wa_ sound20.wav
expand f:\amd64\sound21.wa_ sound21.wav
expand f:\amd64\sound22.wa_ sound22.wav
expand f:\amd64\sound24.wa_ sound24.wav
expand f:\amd64\sound240.wa_ sound240.wav
expand f:\amd64\sound243.wa_ sound243.wav
expand f:\amd64\sound25.wa_ sound25.wav
expand f:\amd64\sound26.wa_ sound26.wav
expand f:\amd64\sound27.wa_ sound27.wav
expand f:\amd64\sound28.wa_ sound28.wav
expand f:\amd64\sound29.wa_ sound29.wav
expand f:\amd64\sound3.wa_ sound3.wav
expand f:\amd64\sound30.wa_ sound30.wav
expand f:\amd64\sound34.wa_ sound34.wav
expand f:\amd64\sound35.wa_ sound35.wav
expand f:\amd64\sound36.wa_ sound36.wav
expand f:\amd64\sound38.wa_ sound38.wav
expand f:\amd64\sound39.wa_ sound39.wav
expand f:\amd64\sound4.wa_ sound4.wav
expand f:\amd64\sound42.wa_ sound42.wav
expand f:\amd64\sound43.wa_ sound43.wav
expand f:\amd64\sound45.wa_ sound45.wav
expand f:\amd64\sound49.wa_ sound49.wav
expand f:\amd64\sound49d.wa_ sound49d.wav
expand f:\amd64\sound5.wa_ sound5.wav
expand f:\amd64\sound50.wa_ sound50.wav
expand f:\amd64\sound528.wa_ sound528.wav
expand f:\amd64\sound53.wa_ sound53.wav
expand f:\amd64\sound54.wa_ sound54.wav
expand f:\amd64\sound55.wa_ sound55.wav
expand f:\amd64\sound560.wa_ sound560.wav
expand f:\amd64\sound563.wa_ sound563.wav
expand f:\amd64\sound57.wa_ sound57.wav
expand f:\amd64\sound58.wa_ sound58.wav
expand f:\amd64\sound6.wa_ sound6.wav
expand f:\amd64\sound65.wa_ sound65.wav
expand f:\amd64\sound68.wa_ sound68.wav
expand f:\amd64\sound7.wa_ sound7.wav
expand f:\amd64\sound713.wa_ sound713.wav
expand f:\amd64\sound735.wa_ sound735.wav
expand f:\amd64\sound8.wa_ sound8.wav
expand f:\amd64\sound827.wa_ sound827.wav
expand f:\amd64\sound9.wa_ sound9.wav
expand f:\amd64\sound999.wa_ sound999.wav
expand f:\amd64\table.bm_ table.bmp
copy f:\amd64\WAVEMIX.inf WAVEMIX.INF

Naturally you’ll want to substitute F:\ with whatever drive letter your CD-ROM/ISO file is mounted on.

And thanks to a long needed feature in Windows 10 you can verify that yes indeed it is a 64bit version.

Or skip the pain, and download the first currently available AMD64 version here: pinball-3790-1069.7z

Isn’t that awesome?! Obviously ARM64 users are left out in the dark, as far as I know there was no ARM64 versions of Windows XP. As a matter of fact, was there any public versions of Windows XP for ARM? Naturally the Surface RT shipped with 8.0

Anyways at long last we can have our 64bit pinball despite the weird bugs, and how the plunger is mostly hidden no doubt due to yet more weird floating point/integer size inconsistencies

Re-visiting Gopher on A/UX

Rather unintentionally some 7 years ago (to the day!) I was playing with an early gopher server on Linux, musing that one day it’d be cool to run it fully on A/UX (what is it anyways?!). And thanks to Qemu’s 68040 support the time is at hand.

First off I need to run this on Linux so I’ll need to build the appropriate branch myself. Thankfully Cat_7 has boiled it down to a really simple formula:

git clone -b q800.upstream https://www.gitlab.com/mcayland/qemu q800-upstream
cd q800-upstream
./configure --target-list=m68k-softmmu --enable-gtk --enable-sdl
make

In my case I remove the gtk and sdl as I’m running this headless.

Now onto the OS itself. While I had numerous images built over the years for Shoebill there was one major issue when compared to Qemu, and that is Shoebill loads the kernel directly while Qemu emulates the hardware so it will boot MacOS 7 directly. While on the surface this is mundane that does mean however that none of my images will actually work on Qemu as they don’t include a blessed copy of System 7. Not that I care that much I could always do a simple dump/restore [ dump.bsd 0f – /dev/rdsk/c0d0s0 | (cd /mnt; restore xf -) ] of my A/UX stuff that I care about anyways. Luckily since I had added that SCSI file support to Cockatrice I could still partition out some disks and install from there.

Now for the further bit of bad news for me is that I found that the 68020 based Shoebill ran 3.0.0 far more stable than 3.0.1 or 3.1. So I’d built everything around 3.0.0. And of course trying to boot 3.0.0 on a Quadra 800 just gives you a hard lock up. I don’t have the setup disk for 3.0.0 but mounting the CD-ROM gives you access to the disk tool (the 3.0.0 version doesn’t check for the Apple string on SCSI ROMS so you can partition with that as well). Anyways too much time thinking I’d done something wrong until this had to be pointed out to me:

Compatibility matrix from penelope

That’s right, 3.0.0 doesn’t run on the Quadra 800. Much longer ago I had a Quadra 950, fantastic beast of a machine, and yes it ran 3.0.0 just great. So shockingly running the right versions got me up to a working system just fine.

Now of course back in the Shoebill days I got ‘3.0.1’ kind of working by cheating. The /mac programs didn’t work on Shoebill however I could copy them over from 3.0.0 to get a working system. Could I substitute a 3.0.1 kernel & /mac directory onto a 3.0.0 system?

So first up the System 7 install from A/UX 3.0.0 is too old for a Quadra 800. Obviously just use the one from 3.0.1. Great.

This lead to a problem where the root filesystem always needs to be checked in single user mode. Something that is shockingly hard to do when your Quadra runs so fast as you have less than a second to hit the ‘top’ button to halt the autoload.

Naturally the standalone runs fine, with no errors.

Thinking that it’s the start-up scripts I remove all the fsck’s and then get this message:

Great a kernel panic. ialloc: dup alloc. Thinking that maybe it’s confusing the UFS, I go ahead and format the disk in SYSV and restore the image onto that.

This gets me another kernel panic, this time no root filesystem. Surprise the SYSV filesystem was made optional in a default install. I run ‘newconfig sysv’ from 3.0.1 and copy that kernel back, and for good measure the shared libraries from 3.0.1. Now I get a different error:

Interesting, I try to hit restart, and instead I get dumped into text mode!

Victory!

So here we are a 3.0.1 kernel with a 3.0.0 userland! I’m going to use this as a server anyways so I don’t really care about the Mac UI. Naturally so many twists and turns I’ll just skip to the end. Networking didn’t work correctly. Maybe I should have copied all the network stuff from 3.0.1 over but at this point it’s basically a 3.0.1 system so why even bother?

So the next thing of course is just to setup Qemu to listen on a loopback and add some disks. A lot of disks.

./qemu-system-m68k \
-L pc-bios \
-m 256 \
-M q800 \
-vnc 10.11.0.1:35 \
-serial stdio \
-bios Quadra800.rom \
-net nic,model=dp83932,netdev=ne -netdev user,id=ne,hostfwd=tcp:10.11.0.1:42323-:23,hostfwd=tcp:10.11.0.1:40070-:70,hostfwd=tcp:10.11.0.1:40080-:80 \
-drive file=pram-aux.img,format=raw,if=mtd \
-device scsi-hd,scsi-id=0,drive=hd0,vendor="SEAGATE",product="ST225N",ver="1.0" \
-drive file=scsi0.vmdk,media=disk,format=vmdk,if=none,id=hd0 \
-device scsi-hd,scsi-id=1,drive=hd1,vendor="SEAGATE",product="ST225N",ver="1.1" \
-drive file=scsi1.vmdk,media=disk,format=vmdk,if=none,id=hd1 \
-device scsi-hd,scsi-id=2,drive=hd2,vendor="SEAGATE",product="ST225N",ver="1.2" \
-drive file=scsi2.vmdk,media=disk,format=vmdk,if=none,id=hd2 \
-device scsi-hd,scsi-id=3,drive=hd3,vendor="SEAGATE",product="ST225N",ver="1.3" \
-drive file=scsi3.vmdk,media=disk,format=vmdk,if=none,id=hd3 \
-device scsi-hd,scsi-id=4,drive=hd4,vendor="SEAGATE",product="ST225N",ver="1.4" \
-drive file=scsi4.vmdk,media=disk,format=vmdk,if=none,id=hd4 \
-device scsi-hd,scsi-id=5,drive=hd5,vendor="SEAGATE",product="ST225N",ver="1.5" \
-drive file=scsi5.vmdk,media=disk,format=vmdk,if=none,id=hd5 \
-device scsi-hd,scsi-id=6,drive=hd6,vendor="SEAGATE",product="ST225N",ver="1.6" \
-drive file=scsi6.vmdk,media=disk,format=vmdk,if=none,id=hd6
Yeah well… great!?

One nice thing is that since we are on Qemu I don’t have to use raw disk images, I can zero stuff out and use VMDK’s. Nice. I guess I could bridge the VM later, but for now NAT is fine enough as all I need is telnet & gopher. So I grab gopher2_3.1.tar.gz, rebuild and move over my gopher site from Linux into A/UX and I’m up and running in no time. It was shockingly easy. I update a few things to reflect it running on A/UX now.

Currently 2 days of uptime!

And just like that I took my semi popular gopher site, and moved it to A/UX seven years after thinking that this would be a ‘good idea(tm)’. I’m sure it won’t backfire spectacularly.

I don’t know if any of this is useful or interesting but it was to me. It’s been nice that Qemu has been able to keep uptime in several days, I had 3 days of uptime before I took it down to max out the storage so I could possibly do more with it.

Naturally it’s still available as gopher://gopher.superglobalmegacorp.com

Qemu’s Macintosh Quadra in alpha usability! (runs A/UX!)

I’m being a bit unfair as far as Alpha’s go it’s rough to get going but wow it’s GREAT! For starters it’s a Quadra 800 so System 7.1 through 8.1 will work. Also this has full 68040 capabilities so yes that means MMU and YES A/UX (and NetBSD!) will run

As always you can find more on emaculation, the best source for news and info on emulating the Mac.

Additionally you can find the setup guide here.

Many of my Shoebill/Cockatrice III images didn’t work at all. Some at least were picked up as blank disks. I had less luck with freshly created raw/vmdk or qcow2 disks. Not sure at all. My minimal 7 2gb disk worked fine as a donor, and even converting to a vmdk was fine. Sooo YMMV. But hey it’s an Alpha and YES IT CAN WORK.

Another plus is that the idle loop works fine so it won’t burn 100% of your CPU. This could possibly be a great gopher server!? Time will tell.

The Gould SEL Concept 32/87

Despite Gould’s location being a few minutes drive from where I first arrived in America, I never had any idea they existed, were making their own exciting machines, or were even a Unix VAR. At a time during the Unix wars one was left to choose SYSV or BSD, but Gould had gone another direction with UTX with a ‘why not both’ approach. Truly an 80’s miracle of Unix.

Well as luck has it there is a SIMH emulator! James C. Bevier has a project on github where he’s building his SEL32 emulation on SIMH!

Even better he’s included tape images, and working INI files which I was able to make into a working system! (after some help with a tape bug)

Boot
File is COFF format
-> section (.bss) size (177960) clearing at (0xcbc18)
-> section (.text) size (724800) loading at (0x1200)
-> section (.data) size (105176) loading at (0xb2140)

Start 0x1200

UTX/32 2.1B (exp) #0: Mon Apr 10 19:46:05 GMT 1989
    bsln@fenix:/usr.POWERNODE/src/src/sys/obj

V6 CPUIPU(P) configuration (IPU not present)
top of system = 0x400000
real mem = 8388608
End of kernel map 0x218464
avail memory = 7356416
using 256 buffers containing 262144 bytes of memory
using 256 mirror buffer headers
ioi: channel iop0 at 7e00 online
ioi: channel dc0 at 800 online
ioi: channel dc1 at c00 not present, dci cc=2
ioi: channel dc2 at 400 not present, dci cc=2
ioi: channel tc0 at 1000 online
ioi: channel en0 at e00 online
 -- CHECK AND RESET THE DATE!
swapping on the b partition
dmmax 512 mbswap 3576
dumplo 11776
Checking root filesystem
Check commented out, uncomment once you have edited /etc/fstab!
Automatic reboot in progress...
Mon Aug 30 05:35:46 CDT 2021
/etc/fsck -p /dev/rdk0d
/etc/fsck -p /dev/rdk0e
/etc/fsck -p /dev/rdk0f
File systems OK

Mon Aug 30 05:36:06 CDT 2021
Mounting file systems
/dev/dk0d mounted on /usr.POWERNODE
/dev/dk0e mounted on /home
/dev/dk0f mounted on /usr/local
Initializing loopback
Starting line printer daemon
Starting standard daemons: update cron.
Adding swap partitions
Standard setup functions
Invoke local rc file
Entering /etc/rc.local
dumpdirectory: No such file or directory
Starting Syslog Daemon
Starting local daemons: inetd.
Starting NFS/RPC daemons: portmap sund.
Mounting NFS filesystems
Leaving /etc/rc.local
Starting mail
Checking aliases file
Preserving editor files
Clearing /tmp - does not remove directories
Clearing pseudo terminals
Leaving rc
Mon Aug 30 05:36:07 CDT 2021


GOULD UTX/32 2.1B (noname) (console)

login:

It’s very BSD feeling on the boot and in the /usr directory there is 5bin 5lib

Sadly transferring stuff by just pasting on the console reveals that there is some IO issues in the simulator:

syncing disks... done

dumping to dev 101, offset 11776
ioi: channel dc0 at 800 online
dump succeeded

As a matter of fact doing anything too fast can/will panic the simulator. That goes for Ethernet and additional serial ports.

Interesting highlights of the platform:

Produced by hard-params version 4.1, CWI, Amsterdam
Compiler does not claim to be ANSI C

Char = 8 bits, signed
Short=16 int=32 long=32 float=32 double=64 bits
Char pointers = 32 bits
Int pointers = 32 bits

Alignments used for char=1 short=2 int=4 long=4
Character order:
    short: AB
    int:   ABCD
    long:  ABCD

Obvious issues with the platform is a lack of GCC. The PCC compiler while standard for early 80’s non PDP-11/VAX machines is a bit lacking as the years went on. I was unable to build gzip due to the following error:

# gmake
cc  -o gzip gzip.o zip.o deflate.o trees.o bits.o unzip.o inflate.o util.o crypt.o lzw.o unlzw.o unpack.o unlzh.o getopt.o
ld: warning: near subsegments too big for static base spanning
ld: gzip.o:
        no base for reloc of memref instruction at .nbtext+0x18 relative to symbol _progname
ld:
        1221 more 'no base ' errors
gmake: *** [gzip] Error 4

Sadly I don’t find much on Altavista other than this & this. It only offers this terse comment:

The constraints on address space on a Gould are quite severe.

Bummer. Additionally neither Hack 1.0/1.03 or PDP-11 Hack will build either. Surprisingly bash-1.14.7, make-3.75 and ircii-2.5 compiled. Obviously with no networking IRC is kind of pointless.

It’s an interesting time capsule of life outside of AT&T/CSRG or SUN, going in a different direction. It seems like a larger lost opportunity to take their ‘it runs both’ approach software and not have it available on different platforms. Granted for a hardware company once the software leaves the compelling reason to buy the hardware evaporates. Hello NeXT.

If anyone wants to try to re-create it, download and build the SEL32 emulator from github, and I put my vague instructions here.

Or for like minded OS tourists, you can give it a spin here: UTX32_2.1B.7z. I included a ‘9346-UTX-blank.disk’ file which is already prepared if you don’t want to go through the 15 questions to prep a disk. Likewise I made a ‘9346-UTX-biga-blank.disk’ image which is just a single large ‘a’ partition as it’s trivial to just add a bunch of big disks these days.

Full 32bit Unix machines from Ft Lauderdale! Who knew?

Double Agent, WSLv2 and named pipes

So digging around an old SDK I came across an old friend, Microsoft Agent:

This was the bold new strategy of having a digital assistant that you could interact with on the desktop to help you with common tasks, and help with common issues. Oddly enough as popular a Alexa is these days, Microsoft’s attempts didn’t work out so well.

Perhaps it was the infamous Clippy of Microsoft Office infamy that left a bad taste in the world of talking animated agents. circling back to the popular Alexa perhaps Clarke/Kubrick had it right in that people prefer an omnipresent voice rather than some animated animal. Perhaps the need to animate Cortana led to it’s downfall as well.

Agent was at least an open ended platform so 3rd parties could drive the agent. However like so many other innovate things Microsoft made in the late 1990’s like Internet Explorer, Comic Chat, and Active-X, Microsoft Agent is no longer supported on Windows 10 (I didn’t even try Vista or 7). Enter Double Agent, a 32bit/64bit Active-X emulator of the old Microsoft Agent control. Download some characters for end users, and install them as Administrator, and you are in business!

How cool. Now for the fun part I took the sample ‘Hello’ from the Microsoft Agent Web SDK for C, and added a named pipe, so it simply sits on \\.\pipe\agent1 and will speak anything you send it. Pretty simple, right?

Adding WSLv2

Now one of the cool things about WSL(Windows Subsystem for Linux), is that you can run Linux commands from the CMD prompt. For example:

C:\Users\jason>wsl uname -a
Linux remlazar 5.10.16.3-microsoft-standard-WSL2 #1 SMP Fri Apr 2 22:23:49 UTC 2021 x86_64 GNU/Linux

Although there is a mechanism for sharing Unix sockets between WSL & Windows, I opted for something more casual and simpler, stdio redirection and a named pipe. I instead opted for the simple command:

@wsl x=$(fortune %1);echo ${x,,} > \\.\pipe\agent1

I should add, I found the hard way that UPPERCASE words are read letter by letter by agent, so I have to do the ‘,,’ trick to force the output to lowercase. Pipes and redirects appear to be interpreted by CMD, so I opted for environment variables instead.

So with some pipes, and a simple example I now have one of those annoying desktop agents reading jokes to me from Linux. It’s not a terribly complicated or involved program, but sometimes it doesn’t have to be. I do like how reading from a pipe is a great LCD, as anything that can open a file can send data to a named pipe, so this makes it ubiquitious.

I guess if I was more involved, I’d add timers, and have the agent walk around, sleep disappear etc etc. But I’m happy enough for it to be acting as a text to speech. The only downside is once kids see it, it’ll be the greatest thing ever. Perhaps Microsoft wasn’t wrong it’s just that the magic of an animated bird reading ‘zippy the pinhead‘ fortunes appeals more to children than to adults.

I’m sure there is books written about user interfaces, and the rise and fall, and rise again of the PDA, but I wonder what they have to say about Microsoft Agent?

Cross compiling to AIX: or missing shr.o

I was inspired by NCommander’s MinGW to Solaris cross compiler so I thought I’d dig out the one that got me started decades ago, cross compiling to the RS/6000 from Linux some time back in 1993. For this experiment I was able to beg/borrow a copy of /usr/lib & /usr/include from AIX 3.2.5 and wanted to use that as a base. I decided to use GCC 2.7.2.2 and Binutils 2.11.2 as these were old enough t build somewhat easy enough from MinGW/MSYS 1, but I figured they also had the best luck of being able to parse the headers without needing ‘fixinc’.

I was able to build both binutils and GCC with this simple incanation

sh configure --target=ppc-ibm-aix325 --prefix=/aix3

One weird thing was that binutils completely sidestepped ld, so I had to configure that manually like this:

--target=powerpc-ibm-aix --prefix=/aix3

Also ‘eaixppc.c’ didn’t generate properly I had to rebuild binutils from Linux to get it to pick up and build that file, copy that back in to get a working cross linker. Older stuff has some issues with CR/LF from time to time, and sometimes it’s easier to deal with builds from other systems and pluck files as needed.

Surprisingly things built, and transferring the to my Qemu AIX image gave me this fun error:

exec(): 0509-036 Cannot load program /cdrom/demo/hello/hello because of the following errors:
0509-150 Dependent module libc.a(shr.o) could not be loaded.
0509-022 Cannot load module libc.a(shr.o).
0509-026 System error: A file or directory in the path name does not exist.

Surprisingly IBM has a fix!

# export LIBPATH=$LIBPATH:/usr/lib
# /cdrom/demo/hello/hello
hello world, compiled by GCC 2.7.2.2!
#

Amazing.

Of course it’s not all sunshine and rainbows, bigger programs like the ‘87 Infocom interpreter bomb like this:

C:\aix3\demo\infocom>gcc -v -o infocom file.o funcs.o infocom.o init.o input.o interp.o io.o jump.o object.o options.o page.o print.o property.o support.o variable.o term.o
gcc version 2.7.2.2
ld -T512 -H512 -btextro -bhalt:4 -bnodelcsect -o infocom /aix3/lib/crt0.o -L/aix3/lib file.o funcs.o infocom.o init.o input.o interp.o io.o jump.o object.o options.o page.o print.o property.o support.o variable.o term.o /aix3/lib/libgcc.a -lc /aix3/lib/libgcc.a
ld: section .data [0000000000000000 -> 00000000000007ff] overlaps section .text [0000000000000200 -> 0000000000009b0b]
ld: section .loader [0000000000000000 -> 00000000000014a8] overlaps section .text [0000000000000200 -> 0000000000009b0b]
gcc: Internal compiler error: program ld got fatal signal 1

Initially I thought this was a problem with the GCC Linker, but after copying the objects to Qemu, and linking from there, I found out that the GNAT gcc driver calls the linker in a different manner:

ld -bpT:0x10000000 -bpD:0x20000000 -btextro -bnodelcsect -o infocom /aix3/lib/crt0.o file.o funcs.o infocom.o init.o input.o interp.o io.o jump.o object.o options.o page.o print.o property.o support.o variable.o term.o /aix3/lib/libgcc.a /aix3/lib/libc.a /aix3/lib/libgcc.a

Reformatted for my cross, but this produces a running executable.

And finally phoon which heavily relies on floating point math:

C:\aix3\demo\phoon>ld -bpT:0x10000000 -bpD:0x20000000 -btextro -bnodelcsect -o phoon /aix3/lib/crt0.o phoon.o date_parse.o astro.o /aix3/lib/libc.a /aix3/lib/libgcc.a /aix3/lib/libm.a
/aix3/lib/libm.a(atan2.o)(.pr+0x308):atan2.c: undefined reference to __itrunc' /aix3/lib/libm.a(atan2.o)(.pr+0x33c):atan2.c: undefined reference to__itrunc'
/aix3/lib/libm.a(atan2.o)(.pr+0x3c4):atan2.c: undefined reference to `__itrunc'

I thought first I could just tack -lm onto the end. However remembering years ago, linkers ARE position dependent, and on AIX libm must come before libc.

C:\aix3\demo\phoon>make
ld -bpT:0x10000000 -bpD:0x20000000 -btextro -bnodelcsect -o phoon /aix3/lib/crt0.o phoon.o date_parse.o astro.o /aix3/lib/libm.a /aix3/lib/libgcc.a /aix3/lib/libc.a

And yep it runs!

Sadly networking is a bit goofed on 4.3.3, and Im unable to upload more than a few hundred bytes before a stall on the console so slip/ppp would be a bit useless.

Speaking of useless, if anyone is crazy enough, you can follow here: MinGW-AIX325.7z