Curt Vendel Posted February 12, 2008 Author Share Posted February 12, 2008 Let me see what Dutchman and I can pull together... and post. For anyone who wants, there is a Vax simulator called SIMH (well it simulates more then vaxes) but you could potentially do all of the compiling in a vax simulator, compile it to object files and have usable code. Here was Atari, making cash hand over first, and I've found numerous memo's from the software programmer groups all complaining that the eprom programmers were limited and it was annoying that they were offsite in other buildings, so they'd have to call over, have someone insert the eprom's, they send the command to burn the code, then have to go and get the eproms for testing... instead of just having 1, 2 or more right in the programmers area's to do locally... Talking about working with stone knifes and sticks "back in the day..." Curt Anyone have any luck compiling this? MadMac doesnt seem to like it. Mitch In order to compile it, you will need Atari Mac65, which ran on the PDP and VAX systems Atari had. Not the OSS version. It is possible to translate the game for use with DASM, but it is very tedious and time consuming. It might be worth while to at least create some info on doing this if Curt finds more pre-ST source codes. Are there any docs on this Mac65 program? Maybe Curt will come across that as well. Allan Quote Link to comment Share on other sites More sharing options...
Gorf Posted February 13, 2008 Share Posted February 13, 2008 You dont even have to go back to the age of sticks...Moe Larry and Curly era is more like it anyway. Quote Link to comment Share on other sites More sharing options...
tjb Posted February 14, 2008 Share Posted February 14, 2008 I took a stab at trying to massage the sources so that they would assemble using ATASM. The biggest issue I have is with local labels. It is difficult at times to tell when a local label region (in ATASM terms) should begin. If I could learn the rules for local labels for this assembler I don't think it would be too difficult to write a perl script to make the necessary source changes. I nearly got it to assemble but I'm sure it would likely crash as I know there are places where I got the local label regions wrong. If we could simply get the docs for this assember I think that would be enough to be able to convert the sources to your favorite assembler. tjb Quote Link to comment Share on other sites More sharing options...
+Allan Posted February 14, 2008 Share Posted February 14, 2008 Thanks for trying TJB. I really want to see that Galaxian demo as well as be able to mess around and fix the regular Galaxian game. Allan Quote Link to comment Share on other sites More sharing options...
DanBoris Posted February 14, 2008 Share Posted February 14, 2008 I took a stab at trying to massage the sources so that they would assemble using ATASM. The biggest issue I have is with local labels. It is difficult at times to tell when a local label region (in ATASM terms) should begin. If I could learn the rules for local labels for this assembler I don't think it would be too difficult to write a perl script to make the necessary source changes. I nearly got it to assemble but I'm sure it would likely crash as I know there are places where I got the local label regions wrong. If we could simply get the docs for this assember I think that would be enough to be able to convert the sources to your favorite assembler. tjb I think the local label regions are delimited by the non-local lables. Here is a chuck of code from one of the Galaxian source files as an example. DODX: stats a block and it has two locals 1$: and 2$:. DECRX: starts the next block, it has one local 1$. Dan DODX: ;X SHOULD STILL HAVE INDEX TO DYDX TABLE LDA DYDX(X) STA BTEMP ;SAVE FOR BIT TEST AND #7 LDX ANMAT0(Y) CPX #4 ;ARE WE STILL PEELING OFF BCC 1$ ;IF NOT, MAKE SHORT DX SWEEP LDX STRTY0(Y) CPX #0B0 BCS 1$ LDX FLTBND BEQ 1$ ;DONT MOVE SO FAST IF AT END GAME ASL ;MAKE BROADER SWEEP 1$: BIT BTEMP BMI DECRX ;MSB INDICATES VECTOR IN MINUS X DIRECTION CLC ADC HPOS0(Y) CMP #RBOUND ;SEE IF AT THE RIGHT BOUND OF SCREEN BCC 2$ JMP FLANDN 2$: STA HPOS0(Y) BCC DOGRFX ;UNCONDITIONALLY DO GRAPHICS ; DECRX: STA BTEMP ;SAVE SUBTRAHEND SEC LDA HPOS0(Y) SBC BTEMP CMP #LBOUND ;IS LEFT BOUND ABOUT TO BE EXCEEDED? BCS 1$ JMP FLANDN 1$: STA HPOS0(Y);ELSE RECORD IT ; DOGRFX: JSR STUFEX Quote Link to comment Share on other sites More sharing options...
ZylonBane Posted February 14, 2008 Share Posted February 14, 2008 Meh. Galactic Chase blew the doors off the official Galaxian port. 1 Quote Link to comment Share on other sites More sharing options...
+Allan Posted February 14, 2008 Share Posted February 14, 2008 (edited) Does anybody know what would be Dasm's equivalents to:.PAGE, .SBTTL, .REPT, .ENDR from this compiler. OK. I figured out the .REPT and .ENDR. Now I just need .SBTTL and .PAGE. Allan Edited February 14, 2008 by Allan Quote Link to comment Share on other sites More sharing options...
tjb Posted February 14, 2008 Share Posted February 14, 2008 I took a stab at trying to massage the sources so that they would assemble using ATASM. The biggest issue I have is with local labels. It is difficult at times to tell when a local label region (in ATASM terms) should begin. If I could learn the rules for local labels for this assembler I don't think it would be too difficult to write a perl script to make the necessary source changes. I nearly got it to assemble but I'm sure it would likely crash as I know there are places where I got the local label regions wrong. If we could simply get the docs for this assember I think that would be enough to be able to convert the sources to your favorite assembler. tjb I think the local label regions are delimited by the non-local lables. Here is a chuck of code from one of the Galaxian source files as an example. DODX: stats a block and it has two locals 1$: and 2$:. DECRX: starts the next block, it has one local 1$. Dan DODX: ;X SHOULD STILL HAVE INDEX TO DYDX TABLE LDA DYDX(X) STA BTEMP;SAVE FOR BIT TEST AND #7 LDX ANMAT0(Y) CPX #4;ARE WE STILL PEELING OFF BCC 1$;IF NOT, MAKE SHORT DX SWEEP LDX STRTY0(Y) CPX #0B0 BCS 1$ LDX FLTBND BEQ 1$;DONT MOVE SO FAST IF AT END GAME ASL ;MAKE BROADER SWEEP 1$: BIT BTEMP BMI DECRX;MSB INDICATES VECTOR IN MINUS X DIRECTION CLC ADC HPOS0(Y) CMP #RBOUND;SEE IF AT THE RIGHT BOUND OF SCREEN BCC 2$ JMP FLANDN 2$: STA HPOS0(Y) BCC DOGRFX;UNCONDITIONALLY DO GRAPHICS ; DECRX: STA BTEMP;SAVE SUBTRAHEND SEC LDA HPOS0(Y) SBC BTEMP CMP #LBOUND;IS LEFT BOUND ABOUT TO BE EXCEEDED? BCS 1$ JMP FLANDN 1$: STA HPOS0(Y);ELSE RECORD IT ; DOGRFX: JSR STUFEX I was thinking of either trying to figure out where to place the .LOCAL directives or ensure that each local label is unique. Since most of the local labels are used with branching instructions the target has to be + or - 128 bytes from the branch instruction. For JMPs I was thinking of using the closest label. It's not as bad as I originally thought since they all have the name format n$. Last night I started on a Perl script and then ended up trying to do most of it manually. I went back and updated the script and have quite a bit of it working (changing .= and .=.+1 to *= and*=*+1, converting Macros from using named parameters to %1, %2, etc. , converting .IF statements, converting numeric values to have a leading $ (I am assuming the .RADIX 16 means that all numbers are hex - I noticed that numbers beginning with a letter have a leading 0). I'm hoping to have something later this evening (if time permits, it's Valentines' day/ our Anniversary so we're going to dinner...) tjb Quote Link to comment Share on other sites More sharing options...
tjb Posted February 15, 2008 Share Posted February 15, 2008 Ok, I'm making progress but I'm running into snags here and there. Check out this Macro: ;SOUNDS FOR THE EXPLOSIONS, FLEET, ATTACK AND MISSILES ;RES DEFINES THE RESOLUTION OF THE CHANNEL, 1 OR 2 GANGED TOGETHER ;INDEX IS THE INDEX VARIABLE THAT INDEXS THRU THE REPEAT, VOLUME AND ;FREQUENCY ARRAYS. RP IS THE REPEAT COUNT REGISTER. IF RAMP IS DEFINED ;THEN REPEAT IS NOT USED AND RP IS USED TO INDEX THRU THE RAMP FUNCTION ; .MACRO SND RES,INDEX,RP,REPEAT,VOLUME,FREQ,?A,?B LDY INDEX BEQ B LDX RP BNE A DEC INDEX LDX REPEAT(Y) STX RP A: DEC RP CMP VOLUME(Y) BCS B .IF EQ,RES-1 LDA FREQ(Y) STA VTEMP .ENDC .IF EQ,RES-2 TYA ASL TAX LDA FREQ(X) STA VTEMP LDA FREQ+1(X) STA VTEMP+1 .ENDC LDA VOLUME(Y) B: .ENDM After conversion it looks like this: .MACRO SND LDY %2 BEQ B LDX %3 BNE A DEC %2 LDX %4,Y STX %3 A: DEC %3 CMP %5,Y BCS B .IF EQ,%1-1 LDA %6,Y STA VTEMP .ENDIF .IF EQ,%1-2 TYA ASL TAX LDA %6,X STA VTEMP LDA %6+1,X STA VTEMP+1 .ENDIF LDA %5,Y B: .ENDM I overlooked the form of the .IF directive that includes .EQ. What do you suppose this line means: .IF EQ,RES-1 Since the comments state that RES can be 1 or 2 I'm guessing the .IF evaluates to true if RES-1 evalutes to 0 (if RES = 1 then 1-1 = 0). There is another .IF that has EQ RES-2 and since RES is either 1 or 2 one of the .EQ (within the .IF directives) directives will evalute to 0. I did correctly convert the .ENDC directives to .ENDIF. Now I just need to handle the case where the .EQ is used. As soon as I get this puppy to assemble I'll post the modified sources. tjb Quote Link to comment Share on other sites More sharing options...
Shannon Posted February 15, 2008 Share Posted February 15, 2008 Meh. Galactic Chase blew the doors off the official Galaxian port. I liked galactic chase, but it was lacking a little in some areas. Quote Link to comment Share on other sites More sharing options...
ZylonBane Posted February 15, 2008 Share Posted February 15, 2008 Aside from missing the scrolling starfield, what? If memory serves it had all the gameplay features of Galaxian. And unlike the Atari port, it had proper unique graphics for the boss Galaxians, smoother animation, and sound effects that didn't make you want to claw your ears out. Quote Link to comment Share on other sites More sharing options...
Goochman Posted February 15, 2008 Share Posted February 15, 2008 I need to check Galactic Chase out - the boss thing irritated me on the 800 release - soooooooo lazy Quote Link to comment Share on other sites More sharing options...
+Allan Posted April 5, 2008 Share Posted April 5, 2008 Does anybody know what would be Dasm's equivalents to:.PAGE, .SBTTL, .REPT, .ENDR from this compiler. OK. I figured out the .REPT and .ENDR. Now I just need .SBTTL and .PAGE. Allan Well I think figured out the .PAGE AND .SBTTL. They are just output format commands and can just be ignored. Anybody else have any luck with this? Allan Quote Link to comment Share on other sites More sharing options...
tjb Posted April 5, 2008 Share Posted April 5, 2008 Does anybody know what would be Dasm's equivalents to:.PAGE, .SBTTL, .REPT, .ENDR from this compiler. OK. I figured out the .REPT and .ENDR. Now I just need .SBTTL and .PAGE. Allan Well I think figured out the .PAGE AND .SBTTL. They are just output format commands and can just be ignored. Anybody else have any luck with this? Allan I got pretty far converting it to ATASM format but it's still a work in progress (in other words I'm still getting errors). I ended up just commenting out the directives that didn't have an ATASM equivilent. tjb Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 17, 2008 Share Posted June 17, 2008 I've only just stumbled across this (doing a search for MadMac) and feel the CA65 assembler maybe able cope with this source without much re-writing, so I'll give it a try. Quote Link to comment Share on other sites More sharing options...
82atari5200 Posted June 22, 2008 Share Posted June 22, 2008 Anyone have AMac? I found a website that was supposed to have it but it's no longer there.... Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 24, 2008 Share Posted June 24, 2008 Hi, Work in progress - the GALDEM code can build to a ROM image that runs in 5200 mode of A800WinPLus. A screen appears after the logo with "5200 SUPER SYSTEM press start" but with corrupt graphics at the top, pressing start does nothing?! I'm using the cc65 suite (well the assembler and linker) and a cygwin environment to provide the 'make' but cc65 is available on many platforms and straight forward enough to get working with. I haven't finished the MV and WV sources conversion yet and so these won't build. CA65 has no direct equivalent of the .ASCII directive in the original code, so using .BYTE causes so behind the scenes remapping of the char-code values. This won't take much to rectify but is a pain (you would think 'target system equals "none"' could leave it alone). More as it happens, if anyone can chip in with fixes then please do. Regards, Mark PAMgalaxian_ca65.zip Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 25, 2008 Share Posted June 25, 2008 A few updates: Fixes to GALDEM source to put right some decimal values I'd incorrectly set as hex. This was causing the corrupted graphics on the 'super system' screen which now displays the word 'Atari'. This is supposed to display rainbow colours inside from what I can tell, but this doesn't seem to work. Also the keyboard routine is never called. I'm not so familiar with the 5200 so is the vector used for hooking this wrong? I've also updated the MV and WV sources so that they compile (and so also included in the makefile). These are odd as the galaxians appear more like pacman ghost's eyes. In GALDEM, if you bypass the 'press start' screen, e.g. add JMP GALAXI at line 136, then you see the start of the game but this crashes after a little while. More comparisons against the original sources to do later... Regards, Mark PAMgalaxian_ca65_rel2.zip Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 28, 2008 Share Posted June 28, 2008 (edited) Last update for a little while (I think). If someone else can try and spot the remaining mistakes that would be good. Some fixups made throughout the sources, generally some more radix issues and general tidying of comments. The big breakthough however was made through switching on the ZZZROM define, now the galaxians look right and the game & demo plays. Some issues do remain though: GALDEM : Some graphics corruption - I have seen this eariler tonight on the MV rom which has since gone - so hopefully this could be identified as a single line fix in the galdem code somewhere. MV: Game is playable but when starting a wave the controller appears to get stuck on a direction. E.g. player's ship moves to the left. Pressing right moves the ship right but when released the ship drifts left again. WV: This seems to work OK. Sources and ROMs separated this time. Enjoy, Mark PAMgalaxian_roms_rel3.zip PAMgalaxian_ca65_rel3.zip Edited June 28, 2008 by Wrathchild Quote Link to comment Share on other sites More sharing options...
+Mitch Posted June 28, 2008 Share Posted June 28, 2008 Cool stuff. So do you think the bugs are from the original code or the conversion process? Mitch Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 28, 2008 Share Posted June 28, 2008 Hard to say, probably in the conversion but I've been through each file quite a few times now to find mistakes and think I've got all now. I've used 'Beyond Compare' which is a very neat diff tool as it highlights the differences in characters on a single line which really helps. A fresh pair of eyes going over the differences maybe able to spot something I've missed. Regards, Mark Quote Link to comment Share on other sites More sharing options...
+Allan Posted June 28, 2008 Share Posted June 28, 2008 Thanks for converting this, Mark. I've been playing the three versions this morning on my Atarimax cart. I wonder if Atari ever used this demo version of Galaxian anywhere. Allan Quote Link to comment Share on other sites More sharing options...
Wrathchild Posted June 30, 2008 Share Posted June 30, 2008 Stange format for a demo too - someone has to press a key to begin the demo which then only lasts for an often short time before it resets the cart and needs you to press the key again. Quote Link to comment Share on other sites More sharing options...
Heaven/TQA Posted June 30, 2008 Share Posted June 30, 2008 and what is the difference to this? http://atari.fandal.cz/detail.php?files_id=1942 because it never was released on 5200? Quote Link to comment Share on other sites More sharing options...
kenfused Posted June 30, 2008 Share Posted June 30, 2008 and what is the difference to this? http://atari.fandal.cz/detail.php?files_id=1942 because it never was released on 5200? (1) It's some demo version. (2) It's source code. Quote Link to comment Share on other sites More sharing options...
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