-
Tricks with IN 31It's generally considered unwise to use a Kempston joystick's fire button to start a game, because the floating bus effect can make arbitrary data ap…
... make arbitrary data appear on IN 31 from the screen RAM.
IN 31 while the ULA is still ... (using a short interrupt routine in IM2 to make sure of ... is connected, and I read IN 31, can I be sure that ... that I've just typed in. -
OUT to file, IN from fileOUT - sentences won't do much on emulators since they mostly communicate with external devices. If there was an emulator that would write the (last) …
... and read the (last) IN-ed value, then someone could ... was OUT-ed and in another WINDOW-program you ... 31.IN and the emulator would read the value with LET A=IN 31 ... .
In this way your ... hardware.
In my case I could test ... -
SEGA GENESIS joypad from Ebay[IMG]http://velesoft.speccy.cz/zx/joypad/IMGP9641.JPG[/IMG] On Ebay is possible buy very cheap chinesse joypad compatible with Sega Genesis / Sega M…
... /> K-MOUSE TURBO: [URL]http://velesoft.speccy.cz/kmturbo2008-cz.htm ... only two directions in same time :-)
[URL="http://velesoft.speccy.cz ... /zx/joypad.htm"]http://velesoft.speccy.cz/zx/joypad. ... bytes readable from joypad:
IN 31 = 0,0,button C,button ... -
Group Order of Internal/External Kempston Turbo InterfacesI have contact Velesoft ([url]http://velesoft.speccy.cz/kmturbo-cz.htm[/url]) about the production of internal or external kempston turbo interfaces …
27.4.2008 VELESOFT
K-MOUSE 2008< ... KEMPSTON JOYSTICK / A-MOUSE : port 31(#1F)
==========================================
D0- ... /> - push LEFT button - IN 31 return JOY(A-MOUSE) or ...
(only port 31 can be enable on switch ... -
Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…
... support kempston joystick port and IN A,(#1F) will always ... inactive, you must disable joystick in game !
... /> Test joy in ZX basic:
IF IN 31 > 127 ... fixed version - [url]http://velesoft.speccy.cz/other/preliminary_monty(fixed_kempston_joy ... -
Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…
... br /> Test joy in ZX basic:
IF IN 31 > 127 THEN ... s fixed version - [url]http://velesoft.speccy.cz/other/preliminary_monty(fixed_kempston_joy ... B]
(add one line in basic loader)[/QUOTE]
VELESOFT! :)
F6 -
Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…
... Test joy in ZX basic:
IF IN 31 > ... - [url]http://velesoft.speccy.cz/other/preliminary_monty ... /> [B][url]http://velesoft.speccy.cz/other/preliminary_monty(selectable_kempston_joy ... br /> [IMG]http://velesoft.speccy.cz/other/preliminary_monty-basic ... -
Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…
[QUOTE=velesoft;380872]Game contain bad ... br /> Test joy in ZX basic:
IF IN 31 > 127 ... fixed version - [url]http://velesoft.speccy.cz/other/preliminary_monty(fixed_kempston_joy ... joystick testing in machine code.
[url]http://velesoft.speccy.cz ... -
Tricks with IN 31It's generally considered unwise to use a Kempston joystick's fire button to start a game, because the floating bus effect can make arbitrary data ap…
[QUOTE=velesoft;436961]
For classic autodetection ... is possible:
- read port 31 after HALT instruction (or at ... D0-D4 are both in 0
If IN 31 return on bits ... -
DivIDE and joystick interfaceWhich joystick interface works with the DivIDE and ZX 48K? I have TurboRAM but it works not correct or blocks DivIDE. Multiface One works with the j…
... anything which could be done in ResiDOS itself.[/QUOTE]
... kempston interface after IN 31 or OUT 31 send to data ... bus:
[img]http://velesoft.speccy.cz/other/divide_plus_data-patch ... soldering):
[img]http://velesoft.speccy.cz/zx/divide/divide_plus ... -
No tea vicar on MB02Hello Folks, I have difficulties in getting "More tea vicar" (the free 128k version) running on the MB02. The game starts and you can choose control…
[QUOTE=velesoft;669727]Yes. Here is port ... ]
Secondary PIO 8255 in MB02+ not exist then MB02 ... as active... Please test if IN 31 return joystick value.
Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…
... .g. IN 15 or IN 239 = ?
A5, e.g. IN 31 or IN 223 ... .g. IN 15 or IN 239 = ?
A5, e.g. IN 31 or IN 223 ... = Kempston Joystick
A6, e.g. IN 63 or IN ... clone)
[url]http://velesoft.speccy.cz/other/zx-ports ...New multi-interface for ZXI have in development new interface for ZX Spectrum. PCB size is similar as K-MOUSE interface and on board is CPLD (programmable logic), up to 1MB st…
[QUOTE=velesoft;729818]Yes. Kempston + fuller work ... use IN 63 instead of IN 31 (no-one has a built-in DK ...Quick fix for four joysticksHere's a quick modification to add four joysticks to any Speccy. This assumes you already have two Sinclair ports. [URL="http://joefish.co.uk/specc…
... I can find - [B]velesoft[/B] has one and there ... I recommend IN 55, as it's IN 31 but with ... however your sacrificial interface decodes IN 31, it should be able to ... , then when you do IN 31, it would think you' ... 're not (thanks [B]velesoft[/B]). As for A4 going ...Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... read any of those joysticks (IN 31, 55, 95) will probably ... an joystick device.
Velesoft requested Fuller input, so I ... routine.
Changing Kempston 31 to 55 or 95 involved ... to convert Kempston 31 interfaces to K-95 in the same style ...Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... original Kempston or Kempston-compatible IN-31 interface to K-95 for ... high.
IN 95 = 01011111
IN 31 = 00011111 (A7=0, A6 ... then completely change the logic in another one so that it ... only any good in the context of [B]velesoft[/B]'s interface ...Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
[QUOTE=velesoft;785180]All real hardware(interfaces ... one can respond to IN 31 and reject IN 95, but you couldn ... it to respond to IN 95 and reject IN 31, as that requires ... it to detect IN 55 and reject IN 31, because IN 55 sets a ...Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... everyone polls for Kempston with IN 31 (00011111) and for K ... ). If you poll with IN 0 then everything, including ... have to ask Velesoft about his support for IN 95, but ... know his interface does IN 31 as well, and both ... along with one low bit in the high byte) for ...Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... there’s little advantage in using upper lines, especially ... polls for Kempston with IN 31 (00011111) and for ... If you poll with IN 0 then everything, including ... to ask Velesoft about his support for IN 95, but ... know his interface does IN 31 as well, and both ...Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... on his website: http://velesoft.speccy.cz/zxporty-cz.htm ... conventional call address used in software is for each ... is to read it with IN 127. However, the PSG ... triggered by someone doing an IN 31. So although the joystick ... it to respond to IN 55 (and not Kempston ...Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... ports on his website: http://velesoft.speccy.cz/zxporty-cz.htm ... Thanks for pointing me at velesoft’s. However, it’s ... that particular number!
Right. Velesoft’s list does seem to ... triggered by someone doing an IN 31. So although the joystick protocol ...IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... need to detect them in hardware and determine yourself ... you can't override IN 254, which means keypress ... address going to 0 (IN 31). But most copies, and ... />
Here's Velesoft's, covering a few more ... DivIDE:
http://velesoft.speccy.cz/zxporty-cz. ...ZX Nuvo 128..Hi There, I have built the ZX Nuvo 128 by Superfo, but it has a problem. The machine is working, but the video signal is completely bonkers. I've …
... link to a program by @velesoft in another thread which works on ... .
[quote="velesoft;901879"]If anyone have DIVMMC ... kempston port on two addresses (31 and 223). If both ... returned value is higher than 31 then kempston use incomplette data ...Dual joystick interface schematic?Hi! Would anyone have a schematic for a dual joystick interface? Cursor or sinclair would either work. If not, I might try my hand at designing one.…
... Kempston joystick interfaces decode the IN-31 by checking for the ... can be distinct from Kempston IN-31. This port is selected ... interface.
[b]Velesoft[/b] developed an interface that ... his particular interface then reading IN-95 this would clash ...Dual joystick interface schematic?Hi! Would anyone have a schematic for a dual joystick interface? Cursor or sinclair would either work. If not, I might try my hand at designing one.…
... interface and normal Kempston IN-31 interface.
Velesoft has confirmed that the ... game works and reads both IN-95 ... and IN-31 at the same time ... Sinclair 1 and 2, IN-31 and K-55 (IN-55). Then set ...Chuckie Egg and joypads on the SpectrumAn old favourite of mine is "Chuckie Egg", but it has no joystick option. I've got a dual port DK Troniks interface, the first port takes IN 31(Kemps…
... interface, the first port takes IN 31(Kempston) and the second uses ... 9. What is the point in that? Does anyone know how ...2 questions regarding partial port decoding1) What happens if the Spectrum reads from a port whose number matches the criteria for more than one device ? Does only one of the devices get to r…
... a troublesome command would be IN/OUT from port 0000h, as ... the Kempston joystick ? The standard "IN 31", corresponds to a port address ... requirements ?
Shouldn't IN A,(15h) also access the ...SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…
... breakpoints on memory write etc. in SPIN, here's a ... Kempston joystick interface, accessed via IN 31. The most common way ... reading this in machine code is the "IN A, (31)" instruction but ... /> UNTIL (RPORT & 255) = 31
[/code]
...which masks ...Detecting a Kempton joystick...I've been playing with the idea in the games I'm currently developing so that once the Kempston joystick has been selected you can hold FIRE down to …
... been playing with the idea in the games I'm currently ... /> After testing the results of IN 31 when a Kempston joystick isn ...DK-Tronics Joystick Interface, notes for databaseOn this page: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000120[/url] There is a note marked 'Blurb': "The first port simulates 6,7,8,9 …
... keys. The second port simulates IN(31) command" - Kempston.
And ... left port implements the Kempston ( IN (31) ) protocol. The right port implements ...
