I can’t find any source of the 0.5 versions, and I had issues with 0.6.x  but with enough mashing of stuff around I did manage to get 0.7.6 to compile, then leaning more on the xwin.c source file I was able to get the SDL output working for 32bit depth (does anyone even have 8bit displays anymore?).  I suppose with this version working I can go back and take a stab at resurrecting 0.6.x
What is cool is that 0.7.6 (perhaps earlier versions of 0.7?) switched from a non commercial license to the GPL 2.0 license.
I managed to ‘fix’ the keyboard in this version so that not only does it not type too fast, but it’ll remember “sticky” keys like shift, control & meta. Â So now you can actually use the CLI, and change disks. Â Double clicking is an impossibility as it simply runs far too fast. Â I compiled in audio support but didn’t bother with the SDL end, as it would sound like noise with it running so fast.
I also updated UAE 0.4, with the fixed keyboard code, and it’s usable now as well, with the same caveat that it simply is just too fast. Â UAE is from an era where a 100Mhz computer was a luxury item. Â Now some $5 computer, you could pack in breakfast cereal has a 1Ghz processor.
For the 2/3 people who care, I put the binary & source tree on sourceforge here. UAE 0.4 & UAE 0.1 are also available for download, plus all the source code I’ve been able to find.
I know with all the talk of GCC 6.1.0 for MS-DOS, and other platforms, you must be thinking that all this talk of progress, and high versions numbers just isn’t right! Â I’ve just started to migrate code to GCC 5.1, and now you are telling me there is a GCC 6!
Where can I turn away from all this so called progress! Â I don’t like my C compilers to be C++ programs that require massive HOURS to compile. Â Can’t we just go back to the good old days?
And the answer is YES, you can!
While looking for some libraries on another project, I came across this old defunct project called RSXNT. And it’s a port of EMX to Win32 platforms! Â Well isn’t that fantastic!
So, considering I was able to build GCC 1.40 and cross compile to Linux 0.11 from Windows, can we do something with this?
Well ancient versions of EMX are very difficult to track down. Â Somehow I did mange to find this hybrid of 0.8B & 0.8C. Â The EMX runtime & binaries are from 0.8C, but the source code is from 0.8B. Â And the best thing is that the 0.8B is based around GCC 1.40! Â So with a little bit of tweaking the files, and messing around I got the assembler, linker, and C compiler to build with MinGW! Â Sadly the source code to EMXBIND, wasn’t included in the zips that I have, but the aformentioned RSXNT packages included a version of EMXBIND that will run on Windows! Â So I managed to mash them together, and for the fun of it, I’m using the old InfoTaskForce interpreter from 1987 to complete the vintage feel.
Compiling & Binding
Now with my executable, I can run it on MS-DOS & OS/2!
MS-DOS via DOSBox
and OS/2 2.0!
OS/2 (on Qemu)
Well isn’t that fantastic!
However when running RSXNT’s bind, NTBIND I got this error:
D:\emx_w32\infocom>..\bin\ntbind info2
No relocations in file:
you have not linked the NT library
Great.  Some more digging around, and if you want to make Windows programs, you need to use the RSXNT includes & libraries.  So I shifted the libraries around, and patched gcc to call the linker the same way RSXNT’s gcc driver calls it, and first go this error:
io.o: Undefined symbol __streams referenced from text segment
And looking at the stdio.h there is this:
extern struct _stdio _streams[];
No doubt, the headers & libraries are tied together. Â So now making both of the RSXNT versions, I can link the executable. (YES I did try declaring the structure anyways, and I get stdout, but stdin doesn’t work).
Running on Windows 10
Just like EMX before it, RSXNT, requires you to have the RSXNT.DLL file in your path, or in the same directory. Â I suppose it’s a fair trade off. Â Not that I expect there to be a surge of people cross compiling from Windows to OS/2, or even MS-DOS these days. Â GCC 1.40 is ancient, 1991 vintage, but even Linus Torvalds loved it!
For comparison, GCC 5.10 produces a 55,906 byte interpreter, while GCC 1.40 produces a 88,576 byte interpreter.
For an attempt at porting some code, I choose Nethack 1.3d, and used the MS-DOS based makefiles. Â It didn’t work so well, but I was able to patch in enough of the unix based termios logic, and thanks to EMX/RSXNT’s built in termios capabilities I was able to get a working version!
Nethack 1.3d on Windows 10 x64
I don’t know if there really was any advantage to compiling with GCC 1.40, but it was great to see that this 1991 compiler could handily compile the 1987 based code.
How about some speed comparisons?  I dug out the ancient dhrystone.c, and gave it a shot.  I had to define 500,000,000 passes, as my computer is fast.  GCC 1.40 only offers -O for optimization, while GCC 5.1 offers many more levels, but for this quick experiment they really aren’t needed.
D:\emx\demo\dhry>gcc140.exe
Dhrystone(1.1) time for 500000000 passes = 57
This machine benchmarks at 8771929 dhrystones/second
D:\emx\demo\dhry>gcc140_O.exe
Dhrystone(1.1) time for 500000000 passes = 40
This machine benchmarks at 12500000 dhrystones/second
D:\emx\demo\dhry>gcc510.exe
Dhrystone(1.1) time for 500000000 passes = 43
This machine benchmarks at 11627906 dhrystones/second
D:\emx\demo\dhry>gcc510_O.exe
Dhrystone(1.1) time for 500000000 passes = 16
This machine benchmarks at 31250000 dhrystones/second
D:\emx\demo\dhry>gcc510_O2.exe
Dhrystone(1.1) time for 500000000 passes = 14
This machine benchmarks at 35714285 dhrystones/second
D:\emx\demo\dhry>gcc510_Ofast.exe
Dhrystone(1.1) time for 500000000 passes = 11
This machine benchmarks at 45454545 dhrystones/second
As you can see, GCC 1.40 produces the slowest code. Â While it’s optimized code did beat out GCC 5.10 with no optimizations, turning on optimizations did blow it away. Â And again GCC 5.1 beat out the older 1.40 for executable sizes.
And this time by over a 2x lead! Â It is fair to say that the new versions of GCC, despite being significantly larger do indeed produce smaller and faster code.
For anyone who’s read this far, I guess you want to take it out for a test drive? Â Remember it is still EMX based, which means is wants to live on the ROOT of your hard disk. Â I’m using the ‘D’ drive for myself, so if you are using C or whatever you’ll need to alter the environment vars.
This is announcement of an update of DJGPP port of GCC-6.1.0
GCC used to stand for the GNU C Compiler, but since the
compiler supports several other languages aside from C,
it now stands for the GNU Compiler Collection.
Build for DJGPP 2.03p2 is not and will not be available. *
Warning: DJGPP port of binutils-2.22 or newer is recommended.
Version 2.19 and 2.20 may work but are not tested
It is however recommended to use binutils-2.22
or newer
Use of DJGPP port of binutils-2.22 or newer is however required for
Binaries are built and tested mostly under Windows Vista Business (SP2)
Source RPMS needed for building Linux to DJGPP cross-compiler
Binary RPMs for both i686 and x86_64 are available. I built these binary RPMs
in CentOS 6.7 chroot under Fedora 23. Binaries are statically linked with GMP-6.1.0
MPFR-3.1.4 and MPC-1.0.3 to avoid unnecessary dependencies and increase
compatibility with other Linux distributions. For example they are expected
to work without problems in other reasonably recent Linux distributions
(like Fedora, RHEL-6 and newer, etc)
gcc610s2.zip is no more provided as patching GCC using DJGPP tools
has not been tested and even attempted by me for a long time.
DJGPP source file gcc610s.zip is a side product of building
gcc-6.1.0 Linux to DJGPP cross-compiler RPM packages. See source
RPM for patches applied to original FSF version of GCC-6.1.0.
You can find the same contents in the file
Cross-compiler binary RPMs (built under CentOS 5.11 i386, are expected to work on other recent enough RPM based Linux distributions, I myself have tried Fedora 19 x86_64):
I cannot promise however, that I’ll update it very often.
However new versions may appear there earlier (including ones not available
from ftp://ftp.delorie.com).
So, Ive been playing around with emulators, and for some reason I think it’d be awesome to have a real one. Â So I check ebay, and yeah there is a few, Altered Beast, Shinobi, and even an Outrun, and a couple of Hang Ons! Â Wow this is so cool, then I check the prices, and shipping and yeah it’s REAL expensive, REAL quick. Â And even back when I did own an Altered Beast board, I never got it hooked up as it was ‘too hard’.
So, I’m about to give up on the whole thing, then I spot this Altered Beast board, for sale for a mere €50!  And the shipping isn’t too insane either!  But looking at the PCB board in the picture, and I can tell something is not quite right:
€50 board!
Now for those who don’t know, this clearly is not a System16 board. Â However it certainly does have a 68000, and z80 processor! Â Could this be some 2nd tier manufacturing job? Or perhaps it’s one of these infamous bootleg boards?
For comparison, here is a real SEGA System16 board
A real System16 board
As you can see, they really look nothing alike.  Also the other give away is that the far cheaper €50 board is JAMMA compatible.  All the old SEGA boards are not.
What the heck is JAMMA anyways? Â You see that edge connector? Â That is where you would plug in the power, coin catchers, the player buttons, and the speakers to. Â Even in the old days, recycling cabinets was a thing, and having modular boards was a ‘good thing’. Â But SEGA didn’t want you to swap out their boards with anyone elses, so they used their own system. Â But it’s just a wiring thing, there is nothing digitial locked down, no encryption either (look at HDMI!). Â So you can use an adapter, to interface from SEGA to JAMMA.
Anyways, I went ahead and placed the order.
Now doing some more research, and the monitors used in 1980’s arcades were RGB+Sync driven.  Which are ancient, and of course, HEAVY. But a little bit of searching led me to the to the GBS 8200 v4.0.
GBS 8200 v4.0
AKA known as the “GBS8200 CGA/EGA/YUV/RGB To VGA Arcade Game Video Converter”. Â Well this certainly looks perfect! Â I mean from the description alone, it’ll do what I want. Â Even better they make them a few KM from here, and I could get one for ~ $20 USD. Â Perfect.
Next up is the power, I decided to get a “JAMMA” power supply. Â A bunch of searching, and this one was the cheapest one I could find, and again shipping wasn’t too bad, but not great either. Â The supply was again around $20 USD, but shipping was $15. OUCH.
MD-9916A JAMMA switching power supply
I figured having the ability to screw in would be a ‘good thing’.
Naturally, I need the cables to wire this mess together, so I ordered a “JAMMA Cabinet Wire Wiring Harness Loom” for about $15 USD. Â Naturally mine is all in Chinese since I went cheap. Â But it’s OK, I have a multi meter so I can test continuity.
Finally I saw a QANBA N1 arcade style joystick in a local mall for $230 HKD.  That is less than HALF the price of the ones I see online in the USA, Europe, or Canada.  So at least that is nice.  Now with all the parts, I just have to wait for the board to arrive.  And wait, and wait.  Nothing updated on ebay, then suddenly I check a few days later, as it’s been two weeks by this point, and it turns out that it’s been sitting in the post office in Hong Kong for a week!  If only they let me know…  SF Express, and FedEx have come without issues.  Oh well, now I have the board!
I can now finally flip it over to reveal:
Graphics board
It’s all 74L TTL logic chips, EEPROMS, and some PALs as well. Â There are NO custom SEGA chips at all. Â If anything this is what is inside of the SEGA ASIC’s on the System16 board. Â Whoa.
Ok, so this is certainly a bootleg board. Â A quick search of MAME shows that they have a Datsu ROMset, so maybe this is one? Â Nothing on the boards say Datsu, however it does say ALTER/S, and it shows being QA’d on 11/11/88.
Now it’s time to cable this thing up!
But first JAMMA boards are typically key’d so you cant put the adapter in backwards. Â There is no key on this board, so I need to check the voltages to make sure I don’t flip it backwards.
JAMMA Standard Pinout
**
Solder Side
Parts Side
**
GND
A
1
GND
GND
B
2
GND
+5v
C
3
+5v
+5v
D
4
+5v
-5v
E
5
-5v
+12v
F
6
+12v
Key, No Pin
H
7
Key, No Pin
Coin Counter 2
J
8
Coin Counter 1
Coin Lockout
K
9
Coin Lockout
Speaker (-)
L
10
Speaker (+)
NC
M
11
NC
Video Analog Green
N
12
Video Analog Red
Video Composite Sync
P
13
Video Analog Blue
Service Switch
R
14
Video Ground
Tilt/Slam
S
15
Test
Coin B
T
16
Coin A
Player 2 Start
U
17
Player 1 Start
Player 2 X-Dir
Player 2 Up
V
18
Player 1 Up
Player 1 X-Dir
Player 2 Y-Dir
Player 2 Down
W
19
Player 1 Down
Player 1 Y-Dir
Player 2 X-Clk
Player 2 Left
X
20
Player 1 Left
Player 1 X-Clk
Player 2 Y-Clk
Player 2 Right
Y
21
Player 1 Right
Player 1 Y-Clk
Player 2 Button 1
Z
22
Player 1 Button 1
Player 2 Button 2
a
23
Player 1 Button 2
Player 2 Button 3
b
24
Player 1 Button 3
1 Player 2 Button 4
NC
c
25
NC
Player 1 Button 4 1
1 Player 2 Button 5
NC
d
26
NC
Player 1 Button 5 1
2 Player 2 Button 6
GND
e
27
GND
Player 1 Button 6 2
GND
f
28
GND
This is the standard pinnout of a JAMMA harness. Importantly you can see it’s Ground than +5v. Â So looking at the 68000 processor to check it’s pinnout:
D4
1
64
D5
D3
2
63
D6
D2
3
62
D7
D1
4
61
D8
D0
5
60
D9
AS
6
59
D10
UDS
7
58
D11
LDS
8
57
D12
R/W
9
56
D13
DTACK
10
55
D14
BG
11
54
D15
BGACK
12
53
GND
BR
13
52
A23
VCC
14
51
A22
CLK
15
50
A21
GND
16
49
VCC
HALT
17
48
A20
Reset
18
47
A19
VMA
19
46
A18
E
20
45
A17
VPA
21
44
A16
BERR
22
43
A15
IPL2
23
42
A14
IPL1
24
41
A13
IPL0
25
40
A12
FC2
26
39
A11
FC1
27
38
A10
FC0
28
37
A9
A1
29
36
A8
A2
30
35
A7
A3
31
34
A6
A4
32
33
A5
 You can see it’s power input is on pin 14.  Likewise, the ground is on pin 53.  Also looking at the edge connector, you can see the two pairs of pins, which correspond to the double ground, and double +5v.
Connecting the harness
From there, it was a matter of connecting up the power supply, adding in the power to the video board, connecting the RGBS connector, and powering it up. Â It was very cool to get a glimpse of Altered Beast!
Something is wrong
And hello, it is a Datsu board.  I’ve tried to google about these boards, and all that I could find out is that they seemed to be popular in Italy.  They may have been made in Korea.  There was another variation called ‘Mutant Warrior/Super Warrior‘.  There was some posts about it in an Italian game forum mameitalia.net, and arcadeitalia.net . Google translate works fine enough to read, but they were in smaller places that couldn’t afford mainstream games, so enter the bootlegs.  And this makes sense, as the board I got was from rural France.
I maybe had a picture for 20 seconds, it was frozen, then the screen went black. Â I power cycled, to nothing. Â I tried it again to a green screen. Â And again to a green screen. Â At this point I think it’s died. Â I let it rest for a few minutes, and try again. Â Nothing. Â I leave it powered up, and feel the processor, and it’s warm. Â It’s doing something, so I think. Â So I start to play with the video board, and as I change resolutions, I get an image!.. then it disappears. Â Power cycling, and changing resolutions occasionally gives me an image. Â I look more closely at the CPU board, and notice that it has 4 standoffs placed on each corner. Â There is nothing in the middle, and over the past 28 years the board is sagging.
In order to fix the sag, I decouple the two boards, and spread them out. Â I try it again, and it doesn’t show me anything. Eventually I play with all the video board settings, and manually set it to the RGBS input, and then the image stays! Â The board is running. Â I tweek some of the settings, and the pink goes away, and now it looks correct!
LOGO
And even the intro animation is OK
Looks good
OK, now it’s time to turn it off, and wire up the joystick.
The first step is to remove the joystick ball, and on the QANBA N1 you first flip it upside down, and remove the little cover.
Remove the cover
to reveal the screwdriver slot to let you hold the stick in place as you unscrew the ball.
slot
Now it pops off, and it’s really easy to remove the USB interface cables, and drag in the JAMMA cables. Â Again use a tester to tone out what goes where. DO NOT FOLLOW MY COLORING GUIDE. Â I’m pretty sure there is no colour standard, so just because mine is like this, yours will 99.9999% not be. Â The only common thing is that each of these buttons needs a ground.
Joystick wired up
My harness has a common ground for P1 and P2, so I just tapped up the end and tucked it in the joystick body. Â Now with wired up, I can put the joystick back together, and play!
And that is when I could finally see that something was wrong. Â I was doing pretty well, then in the 2nd level I saw this weird thing:
An actual wall of text
The sprites are working fine, and the gameplay continues. Â But eventually the wall of text effect went from the background to the foreground obscuring game play.
foreground tile corruption
So no doubt something is bad on the board. Â I need to get it looked at, and see about first dumping and checking the EEPROMS. Â Next the RAM on the graphics board, may be suspect as well. Â I think the CPU is fine since it runs OK, I’m just unable to really see pass the wall.
For the heck of it, I went and got some powered speakers, and hooked them up:
And it sounds so different from the SEGA version. Â An inspection of the board shows that there is no YM2151, but rather a pair of YM2203’s and an OKI M5205 for the speech synths.
In retrospect, I probably should have gone with something like the arcade supergun. Â I didn’t know it was a thing unfortunately. Â My solution is more “traditional” , but it works.
After slightly more than a year since last major GCC release, we are proud
to announce new major GCC release, 6.1.
GCC 6.1 is a major release containing substantial new
functionality not available in GCC 5.x or previous GCC releases.
The C++ frontend now defaults to C++14 standard instead of C++98 it has
been defaulting to previously, for compiling older C++ code that might
require either explicitly compiling with selected older C++ standards,
or might require some code adjustment, see
http://gcc.gnu.org/gcc-6/porting_to.html for details. The experimental
C++17 support has been enhanced in this release.
This releases features various improvements in the emitted diagnostics,
including improved locations, location ranges, suggestions for misspelled
identifiers, option names etc., fix-it hints and a couple of new warnings
have been added.
The OpenMP 4.5 specification is fully supported in this new release, the
compiler can be configured for OpenMP offloading to Intel XeonPhi Knights
Landing and AMD HSAIL. The OpenACC 2.0a specification support has been
much improved, with offloading to NVidia PTX.
The optimizers have been improved, with improvements appearing in all of
intra-procedural optimizations, inter-procedural optimizations,
link time optimizations and various target backends.
See
https://gcc.gnu.org/gcc-6/changes.html
for more information about changes in GCC 6.1.
This release is available from the FTP servers listed here:
http://www.gnu.org/order/ftp.html
The release is in gcc/gcc-6.1.0/ subdirectory.
If you encounter difficulties using GCC 6.1, please do not contact me
directly. Instead, please visit http://gcc.gnu.org for information
about getting help.
Driving a leading free software project such as GNU Compiler Collection
would not be possible without support from its many contributors.
Not to only mention its developers but especially its regular testers
and users which contribute to its high quality. The list of individuals
is too large to thank individually!
While I was looking for System16 stuff, I found the first version of MAME to include the UAE 68000 core starting in release MAME 28, although System16 emulation itself didn’t appear until MAME 33b3, but not playable until MAME 33b4.
So what does it mean? Â Well at the time the UAE core was the way to go. Â However from looking at the MAME source, the UAE core that they were using from System16 was already generated, while UAE still included the build68k program to parse the tables, and generate the 68000. Â Instead they were editing the outputted C. Â UAE wasn’t GPL until version 0.7(something), 0.7.6 for sure, so I don’t know why they weren’t using it from the source.
Eventually starting in MAME 35b2, the core was replaced with MUSASHI , so Among their reasons for dumping the early UAE CPU core was this laundry list:
New 68000 C core. For testing purposes, this is also being used in the DOS
version instead of the asm core. [Karl Stenerud]
Differences:
1. Faster. This code is, barring ram fetch time, almost twice as fast as the existing C core in MAME. I’ve done extensive speed profiling on both engines. The only problem now is the slow memory access in MAME due to bankswitching et al.
2. Emulation more correct. I found many bugs in the MAME engine (and many, many more in mine for that matter) when I pitted them head-to-head. I have run random instructions from each opcode class at least 10 million times, comparing the resultant CPU states, and have left it running random instructions for 1 billion iterations. In every case, I have adhered to the specs defined in M68000PM/AD REV. 1.
3. Disassembler is correct. The current M68000 disassembler in mame has a tendency to disassemble instructions that have an invalid EA mode.
4. Cycle counting is 99.9% correct. The only instructions which don’t have correct cycle counts are divs, divu, muls, mulu, and they’re not worth counting correctly. (I’m not about to waste emulation time counting 0-1 and 1-0 sequences).
5. > 32 bit friendly. I’ve taken care to ensure maximum portability without sacrificing speed. The result is conditional compiling dependant on your architecture. I’ve also implemented and tested a compatible solution for architectures that lack 8, 16, or 32 bit signed storage types.
6. The code is carefully laid out to be readable.
Also in MAME 35b4 added in was emulation of the NEC uPD7759 chip for speech, fleshing out the System16 emulation.
To compile these ancient versions, and inbetween I was using my Candadian cross DJGPP GCC 4.12 Win32 cross compiler. Â For Allegro I’ve always found it builds far easier using GCC 2.7.2.1, a vintage compiler from back in the day I could just run in DOSBox.
Alien Syndrome
Obviously with today’s machines, these ancient versions of MAME run fine on DOSBox! Â It’s really amazing in the scope of emulators running emulators.
Wow what a change from UAE 0.1! Â We now have colour, mouse and keyboard input, so we can finally interact with the machine. Â Behind the scenes the biggest change of course was the ‘Heroic effort’Â of rewriting UAE from C++ into C. Â It certainly made reading the code much more easier as nothing is implicit, like it is in C++.
From the changelog between versions 0.3 and 0.4:
960203 filesys.c, action_read(): Slightly more efficient code (translate Amiga
address to real pointer).
Moved some common code in the generate_* functions in gencpu.c to a
separate function.
960202 Added an experimental fast disk option. Currently turned off by
default (it's not such a big win).
Attached sprite fixes (overlapping att. sprites looked bad, Katakis).
Add sleep(1) before resetting the console to text mode when using
SVGAlib: this might fix some screen corruption problems.
Add sprite/playfield priority checking to the most important case
(single playfield, no HAM).
In filesys.c, do_find(): open() returns -1 on error, not zero.
Return ERROR_OBJECT_WRONG_TYPE if do_find() is called for a directory
(fixes Champions of Krynn harddisk installation).
960201 Don't abort if sound driver not present, just set produce_sound to 0.
New files keybuf.c and keybuf.h to record keypresses in the right
order and without losing any. In cia.c, force 15 scanlines between
keypresses, just to be sure.
unixfs.device does work with Kick 1.3: just don't trust what Kick 1.3
sends in the startup packet. For now, disable more than one mount per
command line.
Started integrating Ernesto's new Mac sources.
Remove superfluous includes from some files.
960131 Added Ed's unixfs.device (great stuff).
Adding ULONGs to pointers is a bad idea on the Alpha if the ULONG value
really is signed. Add some casts to LONG in (pc_p + src) expressions
in genpu.c.
If DMACON is written and copper DMA is enabled, do a COPJMP1 at once.
Helps the "Interference" demo.
960129 More SGI fixes from Ed. Bugfixes and transdisk improvements from Marcus
Sundberg.
Remove EXTRA_DEFINES from Makefile. Breaks some systems.
Move common sprite code from pfield_doline() and pfield_doline_slow()
to new function pfield_sprite(). The same sprite may appear more than
once on the same line, so don't shift out the bits of sprdata[] and
sprdatb[] while displaying it (Turrican I).
In xwin.c and svga.c, barf if LINUX_SVGALIB doesn't match the file
being compiled.
Make all .o files depend on config.h in the Makefile.
No need to exit if sound driver unavailable, but -S given.
Small debugger fix: Missing space in output.
Fix for the sprite logic: Specifically, use a state variable indicating
whether the sprite has been restarted after a VSYNC. Fixes most
Turrican problems.
960124 Added Denis Sablic's patch for sound run-time option.
Added Ed Hanway's patch for better Makefile, X mouse cursor blanking
and more SGI compilation fixes.
960123 Include options.h everywhere.
Handle 8 bit GrayScale visuals like PseudoColor.
Remove C++ leftovers from joystick code.
960122 When using the joystick driver, the button test must come after
handle_events() in vsync_handler().
960118 Removed all the remaining C++ comments. Changed all inline keywords to inline. Define inline if not using gcc.
Make proper prototypes for everything. Compile with maximum warnings +
-ansi + -pedantic.
Remove CIA_cycle(), obsolete.
Reimplemented the STOP optimization in newcpu.c. Removed DualCPU
support in CPU emulator.
Real nasty bug in pfield_doline() fixed: sprxpos could be evaluated as
negative, with not-so-amusing results. (Need to rewrite this in
Oberon to get array bounds checking :-)
960117 Heroic effort: Rewrote the thing in C. This might help fix some
problems with users being unable to compile it.
Fixed a problem in hsync_handler(): Only call flush_line() for lines
in the display window, i.e. when we did a prepare_line() before.
Better code for relative branches: Don't use setpc(getpc()+x) calls,
increment regs.pc_p instead.
960116 Reimplemented the function to load the Kickstart ROM. Use stdio instead
of fstreams since this apparently does not work on the Mac. Detect 256K
Kickstarts. Detect corrupt ROM images (calculate checksum).
Added Ernesto Corvi's Mac port. Changed it around a bit, so it
probably won't compile.
960115 Reinstate config.h options for X screen depth, so that DrawPixel() can
be inlined in custom.cc for speed. xlinebuffer is now incremented in
each call to DrawPixel() (for both X and SVGAlib) to get rid of some
address calculations.
960114 Fixed X generic pixel drawing routine for SHM.
Still trying to fix the harddisk emulation.
uae.device no longer breaks the debugger (can step through uae.device
functions now)
Bugs affecting performance: SPCFLAG_STOP never got reset, and DSKLEN()
would set SPCFLAG_DISK even if DMA was being turned off.
Made slow memory a run-time option.
Defer interrupts by one CPU instruction to give programs a chance to
read INTREQR ("Seeing is Believing" and "Substance" demos)
Added ScrollLock hack for X, too.
960113 SVGAlib version compiles again. Fixed SVGAlib mouse bug.
Fixed SHM bug: Maximum scanline is 313, not 312.
Sometimes, disk.cc missed a side change and would read the wrong data.
Fixed. Apparently, this was the worst compatibility problem.
Implemented trace mode.
960112 Changed layout of class amigamemory a little so that gcc can generate
better addressing modes.
Finally wrote functions in gencpu to generate MOVEMs.
960109 Integrated Ed Hanway's patches for better X support and run-time
configuration of some options.
Got rid of the direct VGA memory access. (Need to do this differently).
Changed the method of drawing lines: custom.cc now tells the graphics
code the line number and whether it needs to be doubleed before drawing
it.
Added Andre Beck's MIT-SHM patch.
Remove warnings for newcpu.cc.
960108 Fixed exceptions in op_illg(): Need to decrement PC.
960107 Added an "uae.device" resident module at 0xF00000. This emulates a hard
disk (fixed size 8MB for now).
960106 Moved some common code from pfield_doline() and pfield_doline_slow() to
a separate function. This fixes a potential HAM bug (two static vars
for the same value).
Sound support for Linux. Works only with graphics off and the CPU
slowed down.
Better SVGAlib keyboard support.
960105 Added AvailMem(), AllocMem(), AllocAbs() and FreeMem() dummies.
The Hardwired demo times the multiplication instructions and prints
"This demo don't like Axel" if they are too fast. Apparently, Axel has
a 68040. Added a WANT_SLOW_MULTIPLY option to config.h.
Fixed the fast blitter emulation (seems to work now).
960104 Fixed all the ChangeLog entries from 95 that said 96 (oops??!)
pfield_may_need_update() should check whether bitplane DMA is on.
Added ersatz.cc and ersatz.h. The purpose of these files is to
implement one or two Kickstart functions that are commonly called from
bootblocks. This should help support some games and demos that only use
the Kickstart as an initial track loader. So far, it's only good enough
for one program.
951223 More intelligent event handling in the CPU emulator. Slightly faster.
951222 Optimize CPU emulation by inlining cctrue(). Also, the real PC no
longer needs to be incremented each instruction. The real PC value
now has to be fetched by m68k_getpc().
Added direct screen access for SVGAlib, but it didn't help much. I'll
probably remove it again.
The gencpu executable is 2M smaller if it allocates memory
dynamically.
951216 custom_bput() enhanced a little. Now remembers the value that was
written in the other half of the register.
Apparently, the USEx bits of BLTCON0 are ignored in line draw mode.
(Silents-Demo)
At this point it really does work. Â However a machine of 2016 compared to 1996 is just too fast. Â As a result it is once more again unusable. Â But it makes sense that code from this era would be built to run as fast as possible, however when it really can run fast, watch out!
I found this code while trying to find other older versions and found a post about uae-0.4.hqx, as the hqx suffix denotes that this was the Macintosh port, which thankfully included all the source, and it looks like it pretty much left the source to UAE intact.
It didn’t take much to modify the xwin.c module into a suitable module for SDL, and I was able to get it running on Linux, and with a simple re-compile onto Windows. I did amputate the filesystem sharing code. Â I could fix it I guess, but considering the insane speed of 0.4, it really doesn’t matter. Â If you want to test it, simply copy a 512KB kickstart to “kick.rom” and copy an ADF diskette image to df0.adf, and start uae. Â Unlike 0.1 this will start right away.
Approaching Aster
It is really far too fast to actually play, just tapping enter after launching is enough to propel you into space in Frontier for example.  And  as you can see from the egg shape of Aster, older versions of UAE use a 1:1 pixel emulation which stretches, and distorts objects.  And it doesn’t correctly detect the screen margins.  I guess if it were 1996 it would be worth the time for something like SDL 2.0 where you can close the primary screen, and create another matching the needed resolution on the fly.
Continuing from my previous post, I was now able to access my AltaVista server, however from a web browser I was unable to actually view any of the documents remotely.
In the pages though I did get the MS-DOS path to the usenet article in question:
Now how do I turn that into a URL?
Well as it turns out mod_rewrite does support regex, which in turn can do variable re-ordering!
After a bit of googling I found this page on stackoverflow, on how to convert a date between UK/US formats:
s/(\d{4})-(\d{2})-(\d{2})/\-$3-$2/
Simple, right? Â So what is going on here? Â The parenthesis define a variable set, and on the substitution part you can recall them with $1, $2 , $3 etc. Â So using this recipe I could take something like this:
u:\b227\comp\sys\laptops\3080
and convert it into the following:
http://debian7/usenet/b227/comp/sys/laptops/3080
The code for this would look something like this:
Substitute "s|>u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href="\"http://debian7/usenet/$1/$2/$3\""]Click for article|"
Although for some reason it’s embedding the URL’s even though I specified code formatting.
Now all I had to do was install IIS 4.0 off the Option Pack CD-ROM, onto my Windows NT 4.0 workstation, and create a virtual directory of /usenet which then pointed to the U: drive where AltaVista did it’s indexing.
So to this point that gives me a config file much like this:
ServerAdmin webmaster@localhost
DocumentRoot /var/www
SSLProxyEngine On
ProxyPass "/altavista/" "https://10.12.0.16"
ProxyPassReverse "/altavista/" "https://10.12.0.16/"
ProxyRequests Off
RewriteEngine On
SetOutputFilter INFLATE;SUBSTITUTE;DEFLATE
AddOutputFilterByType SUBSTITUTE text/html
#clean up urls
Substitute "s|127.0.0.1:6688|debian7/altavista|n"
Substitute "s|file:///C:\Program Files\DIGITAL\AltaVista Search\My Computer\images\|http://debian7/images/|n"
#protect the page
Substitute "s|launch=app||n"
Substitute "s|?pg=config&what=init|?pg=h|n"
#fix title
Substitute "s|<IMG src=\"http://debian7/images/av_personal.gif\" alt=\"[AltaVista] \" BORDER=0 ALIGN=middle HEIGHT=72 VSPACE=0 HSPACE=0>|<a href=\"http://debian7/altavista\"><IMG src=\"http://debian7/images/av_personal.gif\" alt=\"[AltaVista] \" BORDER=0 ALIGN=middle HEIGHT=72 VSPACE=0 HSPACE=0>|--->|n"
Substitute "s|u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\\">Click for article|"
Substitute "s|>u:.([a-z]{1,}[0-9]{3,})\\\([0-9a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\\">Click for article|"
# Need links for the u:\news097f1\b120\comp\society\futures22
Substitute "s|>u:.(news[0-9]{3,}f[0-9])\\\([b0-9]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.(news[0-9]{3,}f[0-9])\\\([b0-9]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.(news[0-9]{3,}f[0-9])\\\([b0-9]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\/\\">Click for article|"
Substitute "s|>u:.(news[0-9]{3,}f[0-9])\\\([b0-9]{1,})\\\([a-z]{1,})\\\([a-z]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\/\\">Click for article|"
# Need links for u:\news002f1\b1\fa.poli-sci
Substitute "s|>u:.(news[0-9]{3,}f[0-9])\\\([b0-9]{1,})\\\([a-z\.\-]{1,})\\\([0-9]{1,})|---><a href=\"http://debian7/usenet/\/\/\/\\">Click for article|"
<Location /usenet/>
ProxyPass http://10.12.0.16/usenet/
RewriteEngine On
SetOutputFilter INFLATE;SUBSTITUTE;DEFLATE
AddOutputFilterByType SUBSTITUTE text/html
</Location>
bla bla rest of the 000-default crap....
Simple right?
Searching for AltaVista
So now I get a nicely formatted page, I can click the mountain icon, and I jump back to home, and I can click on the articles and, because I have no extensions or MIME types to intercept it’ll just download them to my PC. Â I guess I need to go through them all, convert them from UNIX format to MS-DOS, and stick a .txt extension on every single one of them.
I’m still thinking this thing is far too rickety to put on the internet, but we’ll see.
As you may remember from my prior attempt at using Altavista Search I ran out of space, and found out it only serves pages on 127.0.0.1:6688 and is pretty much hardcoded to do so. It’s a “fine” hybrid java 1.01 application, with the bulk of it being java. Â I finally got around to setting up a VM, and unpacking all of the utzoo archives, and indexing them. I should have done something about the IO because this took too long (KVM).
SIXTEEN HOURS!!!
So, to cheat the system, I installed stunnel as a simple https to http proxy, which let me access my search VM anywhere. However, it still embedded 127.0.0.1 in all the pages.
via stunnel
Enter an Apache reverse proxy to talk to stunnel to talk to AltaVista search!
This let me redirect all of those requests into a VM called debian7 on the /altavista path. I also copied the images to the apache server, and now I get something that looks correct!
Apache in the mix!
I cut the results short… But here is a search of something simple:
About 16598 documents match your query.
I also killed all the ‘working URL’s that simply open a desktop application on the index ‘server’. Naturally it was a personal service, but as a server this isn’t any good. As such you can’t click on any search results now. I need something else to figure out how to take the result blocks like “u:\b128\comp\databases\2852” and turn them into URL’s.
Also, as much as I want to re-index I would be best to cut off the headers, or most of them so the preview lines make sense. Xref, Path, even From & Newsgroups don’t interest me.
I hate to leave it as ‘good enough’ but if anyone has a solution…. I’ll be glad to make this wonderful resource available!
