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Thanks.
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- Atari Jaguar
- TI-99
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USB-Keyboard USB to TI99/4A Keyboard converter by F.G. Kaal
Schmitzi posted a topic in TI-99/4A Computers
Fred has something new http://www.ti99-geek.nl/Projects/kbti994a/kbti994a.html#kbti994a (Main page: http://www.ti99-geek.nl ) -
From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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In a package deal I received this TI 99/4A computer. I figured I would play with it a bit but once I opened the box, I came across a dilemma: it looks very new!! This stuff isn't common so I don't have the heart to break the seals and use it. The computer bag is open, but since the peripherals are sealed I can't imagine it was ever used. All the paperwork looks perfect too, so I'm not even sure if the computer was taken out of the box. I'm looking for $100 shipped for it. Also interested trading for (give or take credit): GBA Everdrive SD2SNES USB GD-ROM VGA/HDMI Box for Dreamcast Legos Album: https://imgur.com/a/TFq5d Thanks for looking. Please let me know if you have any questions.
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Hi, I've recently begun fixing an old nonworking TI-99/4A and concluded that the problem I'm facing most likely is in the RAM section of the board. Before I buy new RAM chips I'm wondering what the difference is between models. I have the MK4116N-2GP chips but I can only find MK4116N-2 chips. Can I replace the old ones with a different model?
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I have seen those tape/floppy drives that slot into the cartridge slot looking space on the side of the unit, but I have been having a hard time finding them on Ebay and when I do, they are always very expensive. Are there any other ways to do this?
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after a lot of interference from the real world and a lot of changing of my mind I have made some progress on the Parsec 2600. https://fieldmousetech.wordpress.com/ that is my tech blog and here are some youtube videos of the meteor and single enemy with scrolling meteors https://youtu.be/Gs8RheHNZmY 1 enemy scrolling test 1 enemy attack test https://youtu.be/sVYBqbyveJ4 I programming the thing in 16k multi-sprite kernel. The multi-sprite kernel does not allow sideways scrolling so i'm doing a lot of slight-of-hand to simulate the look of sideways scrolling. why I didn't use the other kernels is the standard kernel did not allow multiple items on the screen, which killed the swoopers. And the DPC+ kernel kept getting overwhelmed and crashing. I still have the swoopers to do, which I already have the code in the DPC+ and standard kernel and just port over. then the tedious task of gluing the whole thing together which will take a while. update: I think I just came up with a viable way to do a refueling tunnel. will preview soon.
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In order not to pollute the thread of Sound List Ripper with this, I've created a small utility in VB5 which converts MID files into TI-99 sound lists. It's somewhat crude, but I'm posting it anyway since there has been interest in it. I think it facilitates the development of sound lists for the TI-99 which are a nice, compact format with a player built into ROM. You can find details on its usage in the README file supplied with it. The ZIP file contains an EXE file, the source code project and the README file. Oh, sorry to say, but since it was developed in VB5, it only runs on Windows. I'm not exactly sure which versions it will run on, but I'm pretty sure it will run on Windows XP, 7 and 10. Maybe earlier versions (from 95 upward) are also OK, but I haven't tested it. Enjoy! Kurt MIDI_TO_Sound_List_0_0_1.zip
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been asked by some people to post an update on my progress of a TI-99 Parsec for the 2600. I'm programming it in multi-sprite kernel. started with DPC+ but kept running into problems. probably because i was trying to do too much at once. my revisit the DPC version later. What I have below is the urbite, dramite module. single attack ships. it's really not too finished and if anyone has some suggestions, feel free. no, the ground does not move, too many cycles for that. changes from the TI-99 version, timer instead of re-fuel cave (no scrolling ground) and overheat your laser does not blow up your ship you just have to wait till the laser cools to shot again. (I always hated that feature in the game. I mean really, who would build a ship to blow up if your over heat your laser). I working on the meteor module, swooper module and the backwards ship module to but they are very unfinshed. will have each module in a separate bank when doneX2.basX2.bas.bin.
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. Hi Ho, found some nice pics, somehow fitting very nice into my imaginations, my fantasy, in the 80´s, while playing all night long Hope you like it, and you´re not getting frightend xXx RMSAAED UUUUuuuuuuuuuuuaaaaaaahhhhh So please come in !! all credits for this great pics up to here go to my buddy Nic from "Die verlassenen Orte" (The Forsaken Places) thx a lot.
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Hi All, Hopefully I'm not breaking any rules by asking, but I was wondering if anyone could link me, google doc me, or e-mail me the bios files for TI-99 on the Retropie. I have been searching the net all day for TI-994A.ctg (case sensitive), and there is just nothing out there. I'm extremely frustrated. TI-99 was one of my favorite game systems. Any help would be much appreciated.
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Cleaning out the garage I found a box of old games. From my (brief) research, the most interesting one seems to be Jumpy from Databiotics. I played these games a lot, hopefully they can find a better home than the dump. Photo attached, send me a message if you're interested.
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Would anybody here happen to have a spare beige TI-99 keyboard (preferably not the Mitsumi membrane type)? I have an extra beige console in working condition that I plan to sell, but it's keyboard is mangled. Please PM me if you do. Thanks in advance!
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Lately I've been working on interfacing an Arduino to the cartridge port of the TI-99 in an attempt to emulate a GROM. The Arduino has functions for reading data, along with reading and writing to/from the GROM address, and it is programmed to handle the GROM select, mode, and direction lines, along with the address/data bus. However, upon inserting the cartridge that connects to the Arduino and powering up the system, it doesn't manage to move past the point at which the sound chip is turned off at the beginning of the boot process. After a few hours of troubleshooting, I am still unable to find a cause for the problem. What are some the reasons that a problem like this might occur? Thanks!
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INFO: Sorry, this tool is no more running on the newer Mame-Versions, there were many changes. Since then I am still working with version 166b, this is the old style, this works. So I will stay there. Maybe on this base, I will do some correction in future, fon´t know. So please do not use this tool on newer Mame or Mess versions (!) It won´t damage anything, but it won´t run, too. (I will use this thread here for a totally other topic next time, as I am able to edit post #1 here) ------------------------------------------------------------------------------------------------------------------------------------- ORIGINAL POST #1, so far: Hi, the MAME & MESS-STARTER-BATCH for Windows (32/64bit) will help you with starting the Emulator. Any suggestions and requests welcome. Just unpack the Small-Zip into the wanted Mame/Mess-folder, but reading the manual is mandatory. For the Big-Zip with full install please send pm. Good luck Schmitzi The Batch.... IS ABLE TO START: with PEB-Slots: [ 1 ] = GENEVE-9640 2:MEMEX 3:HRD4000 5:SPEECH 6:RS232 8:HFDC [ 2 ] = TI-99/4A AE 2:32KMEM 3:HRD4000 5:SPEECH 6:RS232 8:HFDC [ 3 ] = TI-99/EV 2: --- 3:SPEECH 4:SAMSMEM 6:RS232 8:HFDC [ 4 ] = GENEVE-9640-UDS 2:MYARCMM 3:SPEECH 4:RS232 5:HORIZON 8:HFDC [ 5 ] = TI-99/EV HSGPL 3:SPEECH 4:SAMSMEM 5:HSGPL 6:RS232 8:HFDC download the actual version here (Small-ZIP): MAME-MESS-STARTER-v124a_0166b-32-64bit_SMALL-ZIP-Batch-ONLY.zip download the small manual here: MAME-MESS-STARTER-TI99-1.24-MANUAL.pdf RMSAAED Find the older version here: MESS-STARTER-TI99-1.10J2.zip MESS-START-TI99-1.10d-MANUAL.pdf
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My quest to acquire the complete (English Language) Texas Instruments branded Command Module catalog is nearly complete. Hoping that someone here will help me make it to the end by being the source for the only two remaining TI-released cartridges that I still need to find... PHM3045 - Electrical Engineering: Circuit Analysis 1 (including the associated Disks (2) or Cassettes (10) if possible) PHM3213 - TI-Calc Manuals would be nice, but that may be dreaming in technicolor, so the cartridges alone would at least let me cross them off the list (and PDF's can always be found/printed) . Also looking for PHM3066 - Individual Accounting (Buchungsjournal), but the two above will complete the English language carts, and are my current priority. Thanks to everyone who has assisted me in getting the list down to the last two in a relatively short period of time.
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Probably a very newbish question, What is the difference between the 9900, 9500, 95000, etc. TI-99 power bricks? I've heard that both the TI-99/4's and the TI-99/4a's have the same model number yet different voltages, yet there seem to be many model numbers, and I've heard that some with the same model number have different voltages. My 9500 and my 95000 seem to have different voltages on pins 2 and 4 so I was wondering which ones are safer to use on the 99/4a. Thanks!
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After 30 years of wondering I finally got around to creating a Forth compiler for the TI-99 where the top of stack (TOS) is maintained in a register. The literature said this would speed it up by about 10%. I used a DOS Forth system to create the cross-compiler to the build the TI-99 compiler so it was painful debugging both ends at the same time. (old brain hurts) I cross-compiled Brad Rodriguez's Camel Forth for the high level Forth words and wrote 105 Assembler primitives with hints here and there to the hard stuff from TI MSP430 Camel Forth and I had to look at Turbo Forth to help find a couple of gotchas with the 9900 instruction set. Sincere thanks to Willsy and Brad. Anyway the answer is in.,, kind of sort of. Using Willys's excellent and highly optimized Turbo Forth as the benchmark for excellence I did a little comparison. Turboforth uses the PAD RAM at >8300 to hold many simple code routines so they run very fast in that zero wait state memory. To even begin to come close to Turbo Forth I found out I also had to put the Forth thread interpreter there along with branching and I stuck the literal run-time routine there as well. After that the only optimizing approach I used was this TOS thing The TOS caching is a mixed blessing. For routines that take one input on the stack and produce one output like 1+ 2+ 2/ 2* @ C@ etc... it is about 40% faster. Very cool. For operations that take two inputs and generate one output or no output on the stack, ( ! C! + - * etc.) refilling the TOS can eat up all of the benefit on the 9900. And for operators that need to make extra space on the stack for an output, the TMS9900 needs 2 instructions so they are actually slower because you have to push the TOS register onto the stack to make room for the new thing. (DUP OVER etc.) FYI: - my empty DO/LOOP structure runs the same speed as Turbo Forth so the test is truly comparing the math operations. - Tests were run on Classi99 emulator under Windows 10 64bits (my real iron is in a box with a defective 32K memory card) Test 1 tests all the routines Turbo Forth has in PAD Ram and the others as well, so it's mixed. Test 2 is head to head TOS vs PAD RAM optimization. Test 3 is TOS vs Forth operators that have no PAD RAM optimization. We can see in test 3 the we get about 8% improvement not 10%. The surprise for me was test 2 because the speedup was not suppose to be as fast as zero wait state ram but it seems the combination of everything netted out to the same result. Weird. In many other ways Turbo Forth is still faster by virtue of hand coding so much of the internals, but this demonstrates the TOS on math operations. Now I have to stop doing this for a while. (addictions are hard to kick) PS. I noticed I did not include NIP and TUCK but that's for another day. PSS This means Turbo Forth 3.0 can be 8% faster. Just one more re-write Willsy :-) theBF HEX : OPTEST \ mixed 1000 0 \ *OPTIMIZATION METHOD* DO \ CAMEL99 Turbo Forth \ ---------------------- AAAA ( lit) \ HSRAM HSRAM DUP \ TOS HSRAM SWAP \ TOS HSRAM OVER \ TOS HSRAM ROT \ TOS -- DROP \ TOS HSRAM DUP AND \ TOS -- DUP OR \ TOS -- DUP XOR \ TOS -- 1+ \ TOS HSRAM 1- \ TOS HSRAM 2+ \ TOS HSRAM 2- \ TOS HSRAM 2* \ TOS -- 2/ \ TOS -- NEGATE \ TOS -- ABS \ TOS -- + \ TOS HSRAM 2 * \ TOS HSRAM DROP LOOP ; \ CAMEL99: 4 5 secs \ TurboForth 4.7 secs \ (Empty DO/LOOP are same speed) : OPTEST2 \ only HSRAM VS TOS 2000 0 \ *OPTIMIZATION METHOD* DO \ CAMEL99 Turbo Forth \ ---------------------- AAAA ( lit) \ HSRAM HSRAM DUP \ TOS HSRAM SWAP \ TOS HSRAM OVER \ TOS HSRAM DUP AND \ TOS HSRAM DUP OR \ TOS HSRAM 1+ \ TOS HSRAM 1- \ TOS HSRAM 2+ \ TOS HSRAM 2- \ TOS HSRAM + \ TOS HSRAM 2 * \ TOS HSRAM DROP \ TOS HSRAM DROP \ TOS HSRAM LOOP ; \ CAMEL99: 6.4 secs \ TurboForth 6.4 secs HEX : OPTEST3 \ TOS versus conventional Parameter stack 3000 0 \ *OPTIMIZATION METHOD* DO \ CAMEL99 Turbo Forth \ ---------------------- AAAA \ HSRAM HSRAM BBBB \ HSRAM HSRAM CCCC \ HSRAM HSRAM ROT \ TOS -- AND \ TOS -- OR \ TOS -- DUP XOR \ TOS -- 2* \ TOS -- 2/ \ TOS -- NEGATE \ TOS -- ABS \ TOS -- DROP \ TOS -- LOOP ; \ CAMEL99: 7.5 secs \ TurboForth 8.13 secs
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For a while there, one of these puppies was making an appearance on ebay every couple of weeks, but there was always something I wanted/needed more, so I kept letting 'em pass... Now that I'm ready to consider one, none are being posted - which is cool coz I'd rather give my money to AtariAge peeps anyway. So if anyone has a working MBX console with headset/joystick/power supply in relatively good condition (manual and box would be nice, but not a deal breaker) fire me off a PM with price. No games/overlays req'd. (I will also happily accept it as a Xmas gift for the Kris Kringles among you)
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Hi guys, Am new to the forums, but wanted to know if anyone knows where I can get the .ZIP file for the complete package of the HSGPL DSR files? Either the 40 column or the 80 column package would do. I have tried to download the DSR package from the SNUG website, but each of the files takes me back to the homepage and does not download the file. if anyone can post or point me to where I can download them from (other than the SNUG site) it would be much appreciated. Thanks for your help. regards, mnielsenau.
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From the album: Toxic-TEMP-Pics
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OK, this is it...the final stretch in my attempt at building a complete TI-Branded 99/4a Software Module library. I have omitted from my wishlist any titles that do not have a known or complete PHM #, or titles that never existed in a released cartridge (Choplifter and WingWar for example). If anyone is looking for a loving home for any of the following seven remaining titles (w/manual sweetens the pot), let's talk turkey (or cash, your choice). PHM3000 - Diagnotic PHM3045 - Electrical Engineering: Circuit Analysis 1 PHM3066 - Buchungjournal PHM3085 - Computer Math Games III (also looking for I, IV and V, but hey, that's just dreaming in technicolor) PHM3092 - Multiplication (Milliken) - this one should be an easy find, but for some reason it remains elusive PHM3185 - Word Radar PHM3213 - TI-Calc Not concerned with label/cartridge colour, as my goal is simply acquiring a single copy of each title, not a copy of each cartridge variation (for now anyway).
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