PacManPlus Posted October 30, 2013 Author Share Posted October 30, 2013 Hi Guys: Ok, so No go on the new 'loader' routine, it produced 'lines' between the screen zones on the real thing. So I'm using the same one as before. That being said, I fixed the object placement bug that KevinMos3 found, and here is RC6 *This* I believe is the last one. Bob Bentley.a78 Bentley.BIN BentleyP.A78 BentleyP.BIN 4 Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted November 1, 2013 Author Share Posted November 1, 2013 Sorry guys, I posted the 'XM' version above, so many of you won't have sound in an emulator. Here is the 'Standard Pokey' version of RC6. Bentley.a78 Bentley.BIN BentleyP.A78 BentleyP.BIN 4 Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted November 3, 2013 Share Posted November 3, 2013 Here is a little something, something... 6 Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted November 3, 2013 Share Posted November 3, 2013 Oh yeah, and it can also do this... http://atariage.com/forums/topic/101596-how-to-waste-the-memory-of-your-cc2-mmc-cart/?hl=%20waste%20%20space No more hacking up of old BS boards. No idea why my phone decided to upload this one upside down. LOL @Schmutzpuppe: Do one like this, but make it 1 megabyte, instead of 512K. Forgive me for the crappy videos, I don't have time to re-shoot and re-shoot and I like the convenience of the phone upload feature. 5 Quote Link to comment Share on other sites More sharing options...
+Allan Posted November 3, 2013 Share Posted November 3, 2013 I never knew the Atari 7800 was in the Blair Witch Project. Nice board. How many types of boards will this replace? Allan Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted November 3, 2013 Share Posted November 3, 2013 It's designed for 144K or 256K by default, no jumpers. Two jumpers control 512K and 1MB mode. But I just looked at the datasheet for 27C010's and A17 is N/C on it, so I am willing to bet that 128K will just work as well. EDIT: The first run of production boards should be here by the end of the week, they'll be red with beveled and gold plated edge connector, just like all my other boards. It's no different in size, compared to my 48K board. 6 Quote Link to comment Share on other sites More sharing options...
jaybird3rd Posted November 3, 2013 Share Posted November 3, 2013 Very nice! We've needed a new bankswitched 7800 board for a while. I was thinking of doing one, just so I'd never have to desolder any more Jinks boards, but I'm glad to know it's no longer necessary. Quote Link to comment Share on other sites More sharing options...
Jinks Posted November 3, 2013 Share Posted November 3, 2013 Why did you play Bently Bear with a staple gun? Is that what this cart does? Quote Link to comment Share on other sites More sharing options...
+batari Posted November 7, 2013 Share Posted November 7, 2013 It's "snooze you lose" as I also designed a bankswitch board. I improved it over the Tomlin design as it requires just ONE resistor (R1) for 144k-256k, not three. It also has a serial EEPROM for save games - this requires all five resistors to be populated and will support 256k, and the jumper needs to be closed. I've been too busy to even test the one I have so I'm just going to post it all here. Sorry that the schematic is awful and the board needs cleaning up, it's still prototype stage so I encourage anyone to clean up those goofy wire placements so it looks nicer. Under the circumstances, I think it's best I just give this to the community and let someone else do the rest if they are so inclined. I have three boards that I'll send to 7800 programmers if they want to try them, but I won't be getting any more since there are now competing production boards on the way. If anyone who doesn't have an active 7800 project wants a board or boards, I encourage you to get your own, (please remember this is untested, I have had the boards sitting on my bench for a month and just haven't had time, but this is a second prototype, I think it will work fine.) These Eagle files are public domain, I don't need any compensation or otherwise if you use them. The code below requires EQN2JED.EXE to build to a JED file. It's an old DOS program you can find on Google, though it will likely need DOSBox to run it. Here's the .eqn file for 144k-256k (populate one resistor, R1.) ; JED2EQN -- JEDEC file to Boolean Equations disassembler (Version V063) ; Copyright (c) National Semiconductor Corporation 1990-1993 ;$GALMODE REGISTERED chip 7800AABS GAL16V8 capin=1 A15=2 CLK2=3 RW=4 D3=5 D0=6 D1=7 D2=8 A14=9 /OE=11 GND=10 o2=12 ROMCE=13 EA17=14 EA14=15 EA15=16 EA16=17 capout=18 o3=19 VCC=20 @ues 0000000000000000 @ptd unused equations o2 := D1 * /A14 * A15 * /RW + o2 * A14 + o2 * /A15 + o2 * RW o2.oe = vcc o3 := D2 * /A14 * A15 * /RW + o3 * A14 + o3 * /A15 + o3 * RW o3.oe = vcc ROMCE = /A14 * /A15 + /RW ROMCE.oe = vcc EA14 := D0 EA14.oe = OE EA15 = o2 * /A14 * A15 + A14 * A15 EA15.oe = vcc EA16 = o3 * /A14 * A15 + A14 * A15 EA16.oe = vcc EA17 = A14 * /A15 EA17.oe = vcc capout = /A14 * A15 * /RW * /CLK2 capout.oe = vcc Here is the code for 256k + EEPROM. To use the I2C EEPROM, write $08 and $18 to the normal bankswitch area to toggle SCL, and the bit on D7 can read or write SDA as needed (read from any unused address below $4000, like the HSC area will do.) You'll have to bit-bang the I2C protocol yourself to read/write bytes. Note that writes of $08 and $18 to the bankswitch area DO NOT affect bankswitching, it will stay in whatever bank you left it in. ; JED2EQN -- JEDEC file to Boolean Equations disassembler (Version V063) ; Copyright (c) National Semiconductor Corporation 1990-1993 ; Disassembled from mini78.jed. Date: 1-30-113 ;$GALMODE REGISTERED chip 7800AABS GAL16V8 capin=1 A15=2 CLK2=3 RW=4 D3=5 D0=6 D1=7 D2=8 A14=9 /OE=11 GND=10 D4=12 ROMCE=13 EA17=14 EA14=15 EA15=16 EA16=17 capout=18 SCL=19 VCC=20 @ues 0000000000000000 @ptd unused equations capout = /A14 * A15 * /RW * /CLK2 capout.oe = vcc ROMCE = /A14 * /A15 + /RW ROMCE.oe = vcc EA14 := D0 * /D3 + EA14 * D3 EA14.oe = OE EA15 := D1 * /D3 + EA15 * D3 EA15.oe = OE EA16 := D2 * /D3 + EA16 * D3 EA16.oe = OE EA17 = A14 * /A15 EA17.oe = vcc SCL := D4 * D3 + SCL * /D3 SCL.oe = vcc D4 = gnd D4.oe = gnd Edit: removed incorrect comments in eqn files. EDIT2: First EQN file was the wrong one, corrected. 7800BS_EE.zip 5 Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted November 7, 2013 Share Posted November 7, 2013 Very clever. Quote Link to comment Share on other sites More sharing options...
+batari Posted November 8, 2013 Share Posted November 8, 2013 Thanks! Also if anyone grabbed the EQN files above, one was an older version that won't work with the board posted, so I just updated it. I thought I'd build the JED files too just to ensure that they will compile. As said I leave it up to others to validate this (though eventually I may get around to it.) 78bs_batari.zip 2 Quote Link to comment Share on other sites More sharing options...
YANDMAN Posted November 8, 2013 Share Posted November 8, 2013 Thanks, Blue - that's very kind of you. Oh... and: DSCN0896.JPG Now all we need is the board... ( and the manual ) Bob i WANT I WANT I WANT, THAT LOOK SO COOL Quote Link to comment Share on other sites More sharing options...
Chris Leach Posted November 10, 2013 Share Posted November 10, 2013 We'll I'm in for. Boxed copy if it becomes available! This has been a greAt project to follow Quote Link to comment Share on other sites More sharing options...
gorfcadet Posted November 10, 2013 Share Posted November 10, 2013 Bob, any plan to do a run before the XM ships? Whenever you decide to pull this beast out of the oven, put me on the list. It does look amazing. 1 Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 10, 2013 Share Posted November 10, 2013 Bob, Just an FYI, the 'XM version' and 'POKEY standard' both play without issue under MESS with POKEY sound. Quote Link to comment Share on other sites More sharing options...
PacManPlus Posted November 11, 2013 Author Share Posted November 11, 2013 Hi Guys! @gorfcadet: Actually, I never personally got to test the game with the XM yet (when I got the test unit, it wasn't working) I'm not comfortable doing a run before I get to test it myself. @Trebor: hmmm, that's odd... does MESS support the Pokey at $450? Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 11, 2013 Share Posted November 11, 2013 @Trebor: hmmm, that's odd... does MESS support the Pokey at $450? Yes [AM_RANGE(0x0450, 0x045f) /* XBOARD POKEY1 */]. XM/XBoard POKEY address mapping was added several versions ago with high score support address mapping as well. High score support works similar to the ProSystem emulator where if the high score data is present within the *.a78 file it will read the data, but does not properly save/store once the emulator session is terminated and does not work 'stand-alone' with just the game code looking for a High Score Cart/XM module...Example: The way for it to be 'properly' supported in MESS would be to have the High Score Cart, or better yet the XM module (code) handled like a slot-device (Think Sonic & Knuckles cart on the Genesis). That type of coding goes beyond my abilities though. Address maps, screen parameters, and color palettes - no problem; but slot-device coding is over my head. Quote Link to comment Share on other sites More sharing options...
tep392 Posted November 11, 2013 Share Posted November 11, 2013 Correct [AM_RANGE(0x0450, 0x045f) /* XBOARD POKEY1 */]. XM/XBoard POKEY address mapping was added several versions ago with high score support address mapping as well. High score support works similar to the ProSystem emulator where if the high score data is present within the *.a78 file it will read the data, but does not properly save/store once the emulator session is terminated and does not work 'stand-alone' with just the game code looking for a High Score Cart/XM module...Example: DKXM TITLE.PNGDKXM_HS.PNG The way for it to be 'properly' supported in MESS would be to have the High Score Cart, or better yet the XM module (code) handled like a slot-device (Think Sonic & Knuckles cart on the Genesis). That type of coding goes beyond my abilities though. Address maps, screen parameters, and color palettes - no problem; but slot-device coding is over my head. The way I implemented it in the emulator ROM is kind of a kludge. The HSC ROM is not mapped at the correct location in the "cart ROM". I wrote some code to copy the HSC ROM into the correct location at $3000. This only works if RAM is being emulated at that location. There also needs to be RAM at $2000 which is where the battery backed RAM is located on the HSC. correction: the HSC RAM is at $1000. I guess my memory backup battery needs to be replaced. Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 11, 2013 Share Posted November 11, 2013 The way I implemented it in the emulator ROM is kind of a kludge. The HSC ROM is not mapped at the correct location in the "cart ROM". I wrote some code to copy the HSC ROM into the correct location at $3000. This only works if RAM is being emulated at that location. There also needs to be RAM at $2000 which is where the battery backed RAM is located on the HSC.MAME/MESS a7800.c source: AM_RANGE(0x1800, 0x27ff) AM_RAM AM_RANGE(0x3000, 0x37ff) AM_RAMBANK("bank7") /* MAINRAM */ AM_RANGE(0x3000, 0x3fff) AM_ROM /* hs ROM space */ Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 11, 2013 Share Posted November 11, 2013 correction: the HSC RAM is at $1000. I guess my memory backup battery needs to be replaced. MAME/MESS a7800.c source: AM_RANGE(0x1000, 0x17ff) AM_RAM /* hs SRAM */ Quote Link to comment Share on other sites More sharing options...
Shannon Posted November 11, 2013 Share Posted November 11, 2013 Yes [AM_RANGE(0x0450, 0x045f) /* XBOARD POKEY1 */]. XM/XBoard POKEY address mapping was added several versions ago with high score support address mapping as well. High score support works similar to the ProSystem emulator where if the high score data is present within the *.a78 file it will read the data, but does not properly save/store once the emulator session is terminated and does not work 'stand-alone' with just the game code looking for a High Score Cart/XM module...Example: DKXM TITLE.PNGDKXM_HS.PNG The way for it to be 'properly' supported in MESS would be to have the High Score Cart, or better yet the XM module (code) handled like a slot-device (Think Sonic & Knuckles cart on the Genesis). That type of coding goes beyond my abilities though. Address maps, screen parameters, and color palettes - no problem; but slot-device coding is over my head. I can send you my code so you could see how I did it. I based it off of SRAM saving in the SMS driver. It might not be technically correct but it works. Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 11, 2013 Share Posted November 11, 2013 Shannon, that would be awesome...I'll PM you. Don't want to derail this thread anymore than it already is with 'non-Bentley' stuff. Quote Link to comment Share on other sites More sharing options...
CloakandDagger Posted November 20, 2013 Share Posted November 20, 2013 (edited) First post. This game is truly amazing! Have played it on an emulator and it is the only 7800 game that will hold my kids' attention. When it is released on cartridge... will it ONLY work with the XM expansion module? Or will it play on a stock 7800 (even without music)?? Will the cart come with a pokey chip embedded for sound? I love this game. But if it only plays on a 7800+XM, it sort of undermines the storyline that the 7800 could have been an awesome system if only the programmers weren't lazy and stuck in a 2600 mindset. Anyway, whether I can drop $50 on the game (or however much) kind of depends on whether I have to buy an XM to make it work. I'd much rather be able to buy the cartridge and play it on a stock 7800. Fingers crossed... Edited November 20, 2013 by CloakandDagger Quote Link to comment Share on other sites More sharing options...
Trebor Posted November 20, 2013 Share Posted November 20, 2013 Welcome, CloakandDagger.The game will play fine on a 7800 without an XM, just in silence. Even if it only played on a 7800+XM it does not undermine that the system could have done better. It does prove that Atari should have invested more money into cartridge hardware like Nintendo did with the NES. The majority of NES carts would not and do not play with just NES 'base' hardware. There is additional memory, video, and/or sound chips within the cartridges. At the time Atari was not investing into the hardware like it needed to in order to compete properly. A cart could be designed for the 7800 not requiring an XM that would easily play this game complete with sound but it would be a huge resource undertaking financially and the amount of time and energy enormous. That is one of the key points for the XM hardware. You do it once (Both build and buy) and the resources are saved; especially for a homebrew genius like PacManPlus - His time and energy is better spent elsewhere doing other things. Quote Link to comment Share on other sites More sharing options...
AtariLynx Lover Posted November 24, 2013 Share Posted November 24, 2013 I hope there's a cartridge run! The 7800 is finally getting the platformer it so desperately needs and has needed! Quote Link to comment Share on other sites More sharing options...
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