+9640News Posted February 21, 2019 Share Posted February 21, 2019 I just bought a Myarc 512K card from him for use with a TI since I modified my other 512K card for the Geneve. It arrived Tuesday while I was out of town and will be getting home this evening. Very easy to work with. Beery Quote Link to comment Share on other sites More sharing options...
Opry99er Posted February 21, 2019 Share Posted February 21, 2019 Wait, Zach has unopened Myarc stuff? 1 Quote Link to comment Share on other sites More sharing options...
+9640News Posted February 21, 2019 Share Posted February 21, 2019 I'm pretty sure it was unopened. This is a copy of some text he sent me: I don’t have any Geneve stuff. I have a mpes/50 system mini peripheral expansion, 512k ram expansion for ti, actually have 5 of them.....256k memory expansion for ti, 32 memory expansion for ti. I do have a the original sales promo sheets for the geneve computer you are looking for. I inquired about a Geneve, but he did not have any more of those as they had been previously sold. Beery Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted February 21, 2019 Share Posted February 21, 2019 I got one of the 256K expansions from him a couple of years ago to use with Myarc Extended BASIC II. Quote Link to comment Share on other sites More sharing options...
Opry99er Posted February 21, 2019 Share Posted February 21, 2019 Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted February 21, 2019 Share Posted February 21, 2019 I volunteer. Seriously, I did inventory Joy Electronics for Mr. deCordova way back when. Helped him adjust some of his pricing too before he sold it all to Mike D. I placed several orders with Joy Electronics, I miss my talks with Mr. deCordova. My neighbor Joy saw these and said she was Jealous they were using her name: P.S. It's good to be loved! 2 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted February 22, 2019 Share Posted February 22, 2019 The King is alive ! https://www.ebay.com/itm/163556492490?ul_noapp=true 1 Quote Link to comment Share on other sites More sharing options...
Flottmann1 Posted February 22, 2019 Share Posted February 22, 2019 (edited) yeah, great Auction from Elvis, but he don't sell to Germany , although he was stationed here in Germany Edited February 22, 2019 by Flottmann1 1 Quote Link to comment Share on other sites More sharing options...
Asmusr Posted February 22, 2019 Share Posted February 22, 2019 I got one of the 256K expansions from him a couple of years ago to use with Myarc Extended BASIC II. Can it use the extra memory for BASIC? Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 22, 2019 Share Posted February 22, 2019 Can it use the extra memory for BASIC? Only in myarc extended basic ii, otherwise it's a transitory ram disk (no battery) and print buffer other than the first 32k which is the ti 32k ram.. Greg Quote Link to comment Share on other sites More sharing options...
+9640News Posted February 22, 2019 Share Posted February 22, 2019 Myarc wrote Extended Basic 2 with a host of new features over TI Extended Basic. It was written in assembly and was faster than Grom. For years, I ran a BBS from Myarc XBII back in the mid to late 80's in XBII (V2.10) and it was VERY VERY Fast. I think the minimum Myarc memory card required was a 128K card to use Extended Basic 2. With extended basic 2, you had an 8K ram cartridge at >6000 the DSR on the card at powerup of the system would load a rom header allowing you to select XBII. I believe the files were like 7 files 8K in length for loading. There was something like 56K'ish as I recall for programming if memory serves me correctly. What I do not know was how that memory was paged around or what address space it could occupy. I do have a copy of the manual, as well as I am pretty sure the CYC has a copy of the manual. I checked on Whtech under the Manuals>Hardware>Myarc and there is a reference to a website that had the information, however the link is not good. I want to say how to access the memory was never documented by Myarc however there may be references someone has done on either decoding or disassembling the DSR for the card. I'm fairly sure the DSR has been disassembled to some level of detail, but I do not recall where I have seen that information posted. Myself, I will soon be disassembling a portion of the DSR that supports XBII to setup a FinalGrom cartridge XBII cartridge that has the loader installed from the powerup routine. That way, I do not need to swap module cartridges around. For the most part, I think it is just finding the piece of code in the powerup that does a block copy of an address range in the DSR to the RAM starting at >6000. I do not think it is much more than a few hundred bytes. Just to note..... This is not going to allow non-Myarc 512K card users to run XBII. It will only allow a FinalGrom user with the Myarc 512K card to have a "module" they can use without doing a cartridge swap. I am pretty sure this is possible as I think I did something very similar in the 80's, however, I can not find that file. I will probably try to have both XBII and E/A as the "module". I hope that makes sense. If someone knows where details are for paging on the Myarc 512K card, please leave a post on where that information may be found. Beery 5 Quote Link to comment Share on other sites More sharing options...
Asmusr Posted February 22, 2019 Share Posted February 22, 2019 Does anyone have a manual for Myarc Extended BASIC II? Quote Link to comment Share on other sites More sharing options...
+InsaneMultitasker Posted February 22, 2019 Share Posted February 22, 2019 If someone knows where details are for paging on the Myarc 512K card, please leave a post on where that information may be found. Beery Myarc128/512K CRU paging information is in the first section. This hardware compendium might be a valuable reference doc to add to one of the pinned posts. ti hardware compendium myarc info.txt 5 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 22, 2019 Share Posted February 22, 2019 Here's aperture from the ti basic contest running in xbii https://youtu.be/BSMrp8gwwl4 Much faster than in ti basic! And shows of xbii being able to run ti basic programs without mods Sent from my LG-H872 using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
+retroclouds Posted February 23, 2019 Share Posted February 23, 2019 Myarc128/512K CRU paging information is in the first section. This hardware compendium might be a valuable reference doc to add to one of the pinned posts. Nice! I will add it to the development thread. Thank you! :-) 1 Quote Link to comment Share on other sites More sharing options...
Asmusr Posted February 23, 2019 Share Posted February 23, 2019 Does anyone have a manual for Myarc Extended BASIC II? I found the manual and the disk, but there also appears to be a cartridge that I can't find anywhere? I would like to try it in MAME. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 23, 2019 Share Posted February 23, 2019 I found the manual and the disk, but there also appears to be a cartridge that I can't find anywhere? I would like to try it in MAME. Its not a cart however it needs ram at 6000 the xb2 cart is just a ram cart. The xbii dsr rom in the memory card loads a loader there. I used my gram kracker with the write protect off. So you could do the same in mame. Sent from my LG-H872 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Asmusr Posted February 23, 2019 Share Posted February 23, 2019 Its not a cart however it needs ram at 6000 the xb2 cart is just a ram cart. The xbii dsr rom in the memory card loads a loader there. I used my gram kracker with the write protect off. So you could do the same in mame. Sent from my LG-H872 using Tapatalk Thanks, got it working with a Supercart. It's a very nice BASIC, and fast. The SIZE command shows 24K available for each string, variable and program, so 72K in total. 1 Quote Link to comment Share on other sites More sharing options...
sparkdrummer Posted February 23, 2019 Share Posted February 23, 2019 Great Scott! It would be awesome to see a game or utility written for Myarc XBII. The only one I have is Ram Boot which I do use. Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 23, 2019 Share Posted February 23, 2019 Great Scott! It would be awesome to see a game or utility written for Myarc XBII. The only one I have is Ram Boot which I do use.Perhaps a topic of its own is in order Sent from my LG-H872 using Tapatalk Quote Link to comment Share on other sites More sharing options...
fimbulvetr Posted February 24, 2019 Share Posted February 24, 2019 ti-99/4, no a, buy it now for $75 https://www.ebay.ca/itm/vintage-texas-instruments-ti-99-4-home-computer/123661334361 3 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted February 24, 2019 Share Posted February 24, 2019 ti-99/4, no a, buy it now for $75 https://www.ebay.ca/itm/vintage-texas-instruments-ti-99-4-home-computer/123661334361 And gone Sent from my LG-H872 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Opry99er Posted February 24, 2019 Share Posted February 24, 2019 That was about the nicest one I've seen... Quote Link to comment Share on other sites More sharing options...
fimbulvetr Posted February 24, 2019 Share Posted February 24, 2019 Yeah, I was seriously tempted but shipping to Canada was nuts and Ive spent too much on this hobby lately to justify a collectors item. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted February 24, 2019 Share Posted February 24, 2019 It did look nice, but I would need a power supply. I mean, I guess I could fashion my own... but that seems like work. Quote Link to comment Share on other sites More sharing options...
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