[2017-06-05 21:06:41 CEST] * Outsoft joined [2017-06-05 23:13:48 CEST] * Outsoft quit (Leaving...) [2017-06-06 19:18:57 CEST] * bokje joined [2017-06-06 19:31:20 CEST] * bokje quit (ping timeout) [2017-06-06 20:27:44 CEST] * Outsoft joined [2017-06-06 21:58:24 CEST] * Outsoft quit (Leaving...) [2017-06-10 10:04:56 CEST] * zx81jens joined [2017-06-10 10:05:21 CEST] * zx81jens set topic to 'Zeddy4ever' [2017-06-10 10:10:08 CEST] hello [2017-06-10 14:01:58 CEST] * olli joined [2017-06-10 14:03:31 CEST] hallo [2017-06-10 14:05:44 CEST] * klaus joined [2017-06-10 14:05:57 CEST] hallo klaus [2017-06-10 14:06:30 CEST] schoen dass es ueber so weite distanz funktioniert [2017-06-10 14:06:43 CEST] hello everybody i am just testing abrand new wiz-net. [2017-06-10 14:06:58 CEST] successful [2017-06-10 14:07:00 CEST] it works, hurray [2017-06-10 14:07:09 CEST] !!!!! [2017-06-10 14:07:24 CEST] hello fuzb are you there? [2017-06-10 14:08:05 CEST] how is the weather in finland? [2017-06-10 14:18:35 CEST] maybe not so good... :-( [2017-06-10 14:19:15 CEST] here iin nienburg/germany it is fine [2017-06-10 15:01:34 CEST] ... [2017-06-10 15:12:50 CEST] hello everyone [2017-06-10 15:12:56 CEST] hello [2017-06-10 15:13:05 CEST] weather is very fine now, around +20 C [2017-06-10 15:13:16 CEST] whow. congrat. [2017-06-10 15:13:26 CEST] and it is sunny too [2017-06-10 15:13:55 CEST] klaus is just testing his zx81 interface [2017-06-10 15:14:59 CEST] looks like it works :) [2017-06-10 15:15:39 CEST] yes, wonderful. i am writing from a zx81nu machine. [2017-06-10 15:16:08 CEST] we are on a zx-team mini meeting. [2017-06-10 15:16:51 CEST] :) ok, the nu looks very nice [2017-06-10 15:17:30 CEST] I think i must lay down a little because I ate too much [2017-06-10 15:17:50 CEST] yes, the zx81nu is a home-made clone of the zx81. [2017-06-10 15:18:45 CEST] we also just had our lunch but are full of zx81 activity. [2017-06-10 15:20:21 CEST] nice :) have fun.. I must rest a bit because I can't barely move [2017-06-10 15:20:48 CEST] do you know the swedish song: "jeg gaa og legger mig?" [2017-06-10 15:21:24 CEST] sleep well. talk to you later. [2017-06-10 15:21:45 CEST] i checked it on youtube, haven't heard it ever [2017-06-10 15:22:15 CEST] it is very nice. it is on german radio. [2017-06-10 15:22:54 CEST] maybe the song fits to the currnt situation. [2017-06-10 15:40:37 CEST] * olli quit (EOT) [2017-06-10 15:41:57 CEST] goodbye, see you later. [2017-06-10 15:42:06 CEST] * klaus quit (EOT) [2017-06-10 17:24:18 CEST] * klaus joined [2017-06-10 17:25:16 CEST] * klaus quit (EOT) [2017-06-10 21:47:49 CEST] * Outsoft joined [2017-06-10 23:14:15 CEST] * Outsoft quit (Leaving...) [2017-06-10 23:24:32 CEST] * zx81jens quit (EOT) [2017-06-10 23:35:58 CEST] * klaus joined [2017-06-10 23:38:58 CEST] hello fuzb, the song i was talking about was actually from norway and is by frank toennesen: "eg gaar og legge meg". you canfind it on you tube. [2017-06-10 23:41:05 CEST] see or read you tomorrow. greetings fron nienburg/germmany [2017-06-10 23:41:16 CEST] * klaus quit (EOT) [2017-06-11 11:58:58 CEST] * zx81jens joined [2017-06-11 13:27:28 CEST] * zx81jens quit (EOT) [2017-06-11 15:10:01 CEST] * zx81jens joined [2017-06-11 15:20:42 CEST] * zx81jens quit (ping timeout) [2017-06-11 16:02:12 CEST] * zxpandtest joined [2017-06-11 16:02:53 CEST] * zx81jens joined [2017-06-11 16:02:59 CEST] hallo [2017-06-11 16:03:02 CEST] hallo [2017-06-11 16:03:25 CEST] * zxpandtest quit (EOT) [2017-06-11 16:09:34 CEST] * zxpandtest joined [2017-06-11 16:09:42 CEST] tesst [2017-06-11 16:09:45 CEST] test2 [2017-06-11 16:09:53 CEST] !!! [2017-06-11 16:10:00 CEST] * zxpandtest quit (EOT) [2017-06-11 16:20:21 CEST] * zx81jens quit (ping timeout) [2017-06-11 16:33:39 CEST] * zx81jens joined [2017-06-11 16:33:46 CEST] hallo [2017-06-11 16:34:06 CEST] * Lightman joined [2017-06-11 16:34:11 CEST] hallo [2017-06-11 16:34:14 CEST] test [2017-06-11 16:34:30 CEST] test [2017-06-11 16:34:42 CEST] again... test [2017-06-11 16:34:48 CEST] t [2017-06-11 16:34:51 CEST] t [2017-06-11 16:34:52 CEST] t [2017-06-11 16:34:54 CEST] t [2017-06-11 16:35:04 CEST] * Lightman quit (Verlassend) [2017-06-11 16:35:26 CEST] * zx81jens quit (EOT) [2017-06-11 16:36:16 CEST] * zx81jens joined [2017-06-11 18:40:27 CEST] * zxpandtest joined [2017-06-11 18:40:34 CEST] hallo [2017-06-11 18:40:37 CEST] hallo [2017-06-11 18:40:45 CEST] * zxpandtest quit (EOT) [2017-06-11 19:53:21 CEST] * rune joined [2017-06-11 19:54:46 CEST] * rune quit (Leaving) [2017-06-11 19:58:28 CEST] * rune joined [2017-06-11 20:01:44 CEST] * heinz joined [2017-06-11 20:01:56 CEST] hello all [2017-06-11 20:02:18 CEST] Hi heinz, jens, fuzb [2017-06-11 20:02:42 CEST] hi dave [2017-06-11 20:02:43 CEST] Hello Heinz [2017-06-11 20:02:54 CEST] How are things in po [2017-06-11 20:02:54 CEST] h4th? [2017-06-11 20:03:04 CEST] Yes, Fill move [2017-06-11 20:03:07 CEST] nice wheather in po [2017-06-11 20:03:18 CEST] LOK, same here in Ly [2017-06-11 20:03:40 CEST] what happens with the election? [2017-06-11 20:03:45 CEST] OK, Is the screen address the same in H4th as ZX81 [2017-06-11 20:04:01 CEST] I think Conservatives miscalculated [2017-06-11 20:04:14 CEST] Its all a mess [2017-06-11 20:04:17 CEST] it seems so. [2017-06-11 20:04:34 CEST] back to h4th [2017-06-11 20:05:00 CEST] OK, I need to read memory and write to it. I think MOVE and FILL [2017-06-11 20:05:05 CEST] are the words I need [2017-06-11 20:05:09 CEST] do you have a woorking h4th with yoou? [2017-06-11 20:05:25 CEST] Yes, was looking at it as we spoke [2017-06-11 20:05:39 CEST] try hex [2017-06-11 20:05:48 CEST] fbuf [2017-06-11 20:05:54 CEST] u. [2017-06-11 20:06:05 CEST] what did you get? [2017-06-11 20:06:16 CEST] FD00 [2017-06-11 20:06:22 CEST] right. [2017-06-11 20:06:37 CEST] this is the address youve asked for. [2017-06-11 20:06:37 CEST] what is fbuf? screen? [2017-06-11 20:06:58 CEST] fbuf is the first screen address. [2017-06-11 20:07:11 CEST] It doesnt move about like ZX81 [2017-06-11 20:07:13 CEST] ? [2017-06-11 20:08:04 CEST] try 20 fbuf exclamation mark [2017-06-11 20:08:14 CEST] And does it use end of line markers, or do we assume all lines are 32 bytes [2017-06-11 20:08:31 CEST] 32 = 20hex. [2017-06-11 20:09:31 CEST] i dont have the exclamation mmar key on my zx81 [2017-06-11 20:10:19 CEST] hex 20 fbbuf excl-mark [2017-06-11 20:10:27 CEST] fbuf [2017-06-11 20:10:29 CEST] OK, got it shift w [2017-06-11 20:10:53 CEST] yoou should get the at-letter [2017-06-11 20:11:01 CEST] Yep, 21 fbuf ! prints A top left [2017-06-11 20:11:07 CEST] right. [2017-06-11 20:11:17 CEST] I think I got @ [2017-06-11 20:11:48 CEST] printing 2nd line: 21 fd20 exccl-mark [2017-06-11 20:12:21 CEST] printing 3rd line 4th row: [2017-06-11 20:12:37 CEST] 21 fd44 excl-mark [2017-06-11 20:12:46 CEST] and so on. [2017-06-11 20:12:49 CEST] Oh, 34 fbuf + ! prints a stranf character. never knew ZX81 could do hi res [2017-06-11 20:13:09 CEST] try 40 fd00 excl-mark [2017-06-11 20:13:28 CEST] crash? [2017-06-11 20:13:37 CEST] No [2017-06-11 20:13:49 CEST] but it should crash. [2017-06-11 20:14:17 CEST] Slopping character - i pixel high steps [2017-06-11 20:14:30 CEST] But maybe emulator is stopping crash [2017-06-11 20:14:52 CEST] the bit6 must not 1, otherwise a crash. [2017-06-11 20:15:19 CEST] bit 6 of fbuf? [2017-06-11 20:15:30 CEST] Is this in the manual? [2017-06-11 20:15:46 CEST] noo, of tthe contents of the screen. [2017-06-11 20:16:05 CEST] you have always to subtract 20hex. [2017-06-11 20:16:23 CEST] a = 21, not 41 as it should. [2017-06-11 20:17:04 CEST] b == 22,#not 42hex=66dec [2017-06-11 20:17:09 CEST] Right, I'll have a play with it afterwards [2017-06-11 20:17:38 CEST] Did I tell you I got the Minstrel running [2017-06-11 20:18:10 CEST] that is fine. what was the problem before? [2017-06-11 20:18:25 CEST] The oscillator - it wouldnt start [2017-06-11 20:18:40 CEST] I think first problem was the IC with Xor gates [2017-06-11 20:18:43 CEST] what did you doc [2017-06-11 20:18:51 CEST] do? [2017-06-11 20:19:09 CEST] Changed IC. Then if I put the scope onto output of 2nd XOR the oscillator would start [2017-06-11 20:19:19 CEST] and it worked [2017-06-11 20:19:39 CEST] even whitout scoope? [2017-06-11 20:19:44 CEST] So only components in that part of circuit was Capacitor and resistor [2017-06-11 20:19:46 CEST] permanently? [2017-06-11 20:19:58 CEST] I dropped the value of the resistor a little and all is good [2017-06-11 20:20:26 CEST] Yes, once oscillator started it was fine, even with a reset until power wenbt off [2017-06-11 20:20:33 CEST] a little l 10 percent ? [2017-06-11 20:20:37 CEST] Lowwer resistor value fixes it now [2017-06-11 20:21:00 CEST] little = 10 percent less? [2017-06-11 20:21:04 CEST] Probably closer to 25% but only because thats what I had [2017-06-11 20:21:31 CEST] I will get a resistor closer to 1K when I wire the keyboard [2017-06-11 20:21:48 CEST] I think its just inder 800 ohms [2017-06-11 20:21:56 CEST] under [2017-06-11 20:22:04 CEST] did you check your zx81? [2017-06-11 20:22:12 CEST] cpu pin5? [2017-06-11 20:22:29 CEST] No, if I continued on those I would end upo destroiying them [2017-06-11 20:22:40 CEST] Sometimes a break away from a problem helps [2017-06-11 20:23:13 CEST] it was a useful hint given by pokemon. [2017-06-11 20:23:14 CEST] I have now got two working boards and I can test the Z80 [2017-06-11 20:23:41 CEST] I did look and transalted some of it, but had to visit Lizs daughter today [2017-06-11 20:23:58 CEST] i wonder the price of paul"s ula. [2017-06-11 20:24:08 CEST] Weird thing is my three working boards are all surface mounted ICs [2017-06-11 20:24:33 CEST] 5 euro is very good, if its double price then still very good [2017-06-11 20:24:37 CEST] this makes the things more diff. [2017-06-11 20:25:12 CEST] i expect double. [2017-06-11 20:25:31 CEST] Who was it that did your H4th ROM, I need to write to him now and ask/bef a favour for one [2017-06-11 20:25:37 CEST] of double: about 20 [2017-06-11 20:25:53 CEST] Even 20 Euro is acceptable [2017-06-11 20:26:18 CEST] * Outsoft joined [2017-06-11 20:26:19 CEST] I remember the guy at Retroleum did replacement ZX Spectrum ULAs and they were 14.00 [2017-06-11 20:26:51 CEST] 14 would be a good price. [2017-06-11 20:27:14 CEST] yes. They should be a lot more robust too [2017-06-11 20:27:15 CEST] what kind of h4th rom do you meanc [2017-06-11 20:27:24 CEST] ? [2017-06-11 20:27:38 CEST] Well, my ideal woulkd be H4th and ZX81 [2017-06-11 20:27:44 CEST] for zx81 or for nu? [2017-06-11 20:27:51 CEST] also one with VDrive extensions [2017-06-11 20:28:05 CEST] For ZXNU and Minstrel [2017-06-11 20:28:07 CEST] do you mean the nnuc [2017-06-11 20:28:12 CEST] nu? [2017-06-11 20:28:21 CEST] Yes [2017-06-11 20:28:53 CEST] are you able to burn? [2017-06-11 20:29:20 CEST] Maybe, that Eprom burner needs software, but it can copy standalone [2017-06-11 20:29:51 CEST] I can also borrow a USB burner from a friend. So in theory yes I can burn [2017-06-11 20:30:01 CEST] Have you got the dump? [2017-06-11 20:30:31 CEST] wait a second. [2017-06-11 20:31:36 CEST] originally it is a m27c256 [2017-06-11 20:31:43 CEST] 32kb [2017-06-11 20:31:49 CEST] I have lots of those [2017-06-11 20:32:02 CEST] I even have an eraser [2017-06-11 20:32:21 CEST] i dont have the dumpp, but i could try too get it. [2017-06-11 20:32:35 CEST] to get [2017-06-11 20:32:38 CEST] That would be great if you could [2017-06-11 20:32:44 CEST] OK, question [2017-06-11 20:32:49 CEST] next week. [2017-06-11 20:33:08 CEST] The ROM socket on the ZX81 is larger than the ROM [2017-06-11 20:33:28 CEST] I think the ROM is 32 pin? [2017-06-11 20:33:54 CEST] Can you use one of the Eproms instead of standard ZX81 rom [2017-06-11 20:35:08 CEST] yes, you can. [2017-06-11 20:35:59 CEST] Is there any way to use different ROM images like on the NU [2017-06-11 20:36:00 CEST] but you have to modify the board or you will need aanotther sockt. [2017-06-11 20:36:23 CEST] How to modify board? Adress select lines [2017-06-11 20:36:34 CEST] hey guys. sorry, i was away from keyboard... [2017-06-11 20:36:39 CEST] i have an h4th-rom in one of my zx81. [2017-06-11 20:36:50 CEST] hi Jens [2017-06-11 20:36:56 CEST] hi jens [2017-06-11 20:36:58 CEST] hey [2017-06-11 20:37:05 CEST] Heinz, so you have dual rom in ZX81 [2017-06-11 20:37:27 CEST] no, only one for 8kb [2017-06-11 20:37:59 CEST] But using the M27C256 Eprom or an 8K Eprom [2017-06-11 20:38:07 CEST] there is no direect possibility to switch between diff banks. [2017-06-11 20:38:27 CEST] the 27c256 is for the nu [2017-06-11 20:38:53 CEST] OK [2017-06-11 20:39:14 CEST] the nu can handle different rom. there is a zx81 and a zx80 inside :-) [2017-06-11 20:39:25 CEST] First I need a couple of 27C256 Eprom, [2017-06-11 20:39:26 CEST] jens, what about your h4th zeddyy? [2017-06-11 20:39:56 CEST] modified sockte? [2017-06-11 20:40:04 CEST] or adtapter? [2017-06-11 20:40:21 CEST] it works. and i just put the zxpand on. it shows a sceern with wild letters, but it works :-) [2017-06-11 20:40:23 CEST] adapter [2017-06-11 20:41:55 CEST] i used the 27c256 as a rom. of course i had to modify the board [2017-06-11 20:42:03 CEST] question to jens: did you modif the socket? [2017-06-11 20:42:21 CEST] cut some liines. [2017-06-11 20:42:31 CEST] i cut some lines [2017-06-11 20:42:54 CEST] before you had to remove the old socket. [2017-06-11 20:43:40 CEST] there are some critical lines behind the socket. [2017-06-11 20:44:05 CEST] How many pins of a standard ROM and how many on the standard socket and 27C256 Eprom? [2017-06-11 20:44:18 CEST] 28 [2017-06-11 20:44:41 CEST] socket = 32 then? [2017-06-11 20:45:07 CEST] socket=28, i think. [2017-06-11 20:45:36 CEST] staandard rom has 24 [2017-06-11 20:45:44 CEST] original rom=24 pins. the 27c256 has 28 [2017-06-11 20:45:51 CEST] No, socket has 2x2 more places than standard rom [2017-06-11 20:45:56 CEST] the soket has 28 too [2017-06-11 20:46:13 CEST] right. [2017-06-11 20:46:26 CEST] OK, socket has enough places for Eprom pins [2017-06-11 20:46:53 CEST] But wiring is different [2017-06-11 20:46:55 CEST] yes, but the 27c256 need some modifications [2017-06-11 20:47:20 CEST] i can send a pic... [2017-06-11 20:47:37 CEST] Great Jens, dave@scotek.net [2017-06-11 20:49:15 CEST] Are there any other interesting ROMs for the ZX81? I believe the minstrel can access up to 8 [2017-06-11 20:50:32 CEST] my son is calling. [2017-06-11 20:50:37 CEST] bye bye. [2017-06-11 20:50:41 CEST] * heinz quit (EOT) [2017-06-11 20:50:55 CEST] OK, bye. I need to go and prepare for work tomorrow [2017-06-11 20:51:05 CEST] Nice talking to you Jens, bye [2017-06-11 20:51:07 CEST] ciao a tutti ;) [2017-06-11 20:51:13 CEST] how many guys today ;) [2017-06-11 20:51:25 CEST] i will send the mail ;-) bye [2017-06-11 20:51:28 CEST] 4 including you [2017-06-11 20:51:37 CEST] Thanks bye all [2017-06-11 20:51:41 CEST] hey simone. [2017-06-11 20:51:41 CEST] * rune quit (Leaving) [2017-06-11 20:53:21 CEST] https://www.facebook.com/groups/sinclairpreservation/ [2017-06-11 20:53:35 CEST] comes to our Sinclair Preservation gruop ;) [2017-06-11 20:53:44 CEST] I've linked all my ZX81 stuff ;) [2017-06-11 20:53:54 CEST] group sorry ;) [2017-06-11 20:55:36 CEST] i just send the invitation-request... look for David Lightman $thats me :-) [2017-06-11 20:56:44 CEST] and i send a personal request also :+) [2017-06-11 20:57:21 CEST] ;) [2017-06-11 20:57:37 CEST] approved ;) [2017-06-11 20:58:21 CEST] you know Schombi and Dieter [2017-06-11 20:58:26 CEST] lovely people!!! [2017-06-11 20:58:40 CEST] Stefan helped me find many QL stuff, Dieter Sam stuff [2017-06-11 20:58:46 CEST] great people! [2017-06-11 20:59:43 CEST] we met once a year. dieter and schombi are really great. i learned a lot!!! [2017-06-11 20:59:59 CEST] ;) [2017-06-11 21:29:27 CEST] * Outsoft quit (Leaving...) [2017-06-11 21:33:22 CEST] * zx81jens quit (EOT)