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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…
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Secondary PIO 8255 in MB02+ not exist then MB02 ... as active... Please test if IN 31 return joystick value.
Problem with DIY Kempston Joystick InterfaceHello, Decided to try out Yarek's Kempston joystick interface: [img]http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif[/img] Having a few issues.…
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I noticed in his diagram there is no ... needed for 74HCTxxx chips. In this design there should be ... levels.
Keep in mind that this design does ... You can improve this circuit in two ways, one way ... 20 PRINT AT 5,5; IN 31;" ";
30 GO TO ...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…
... the address lines. So if IN 31 is A7,A6,A5 set ... ,A6,A4 go low, so IN 47? That would also work ...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…
... the address lines. So if IN 31 is A7,A6,A5 set ... ,A6,A4 go low, so IN 47? That would also work ... could certainly add extra decoding in a partially decoded kempston interface ...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…
... drawback seems to me in nobbling an interface that ... g. 0x5f = IN 95, 0xdf = IN 223, 0x0f = IN 15).
... , etc.) but not 0x1f = IN 31.
The only ... existing game that uses IN 31 it would address joysticks ... I'm only interested in hacking an interface I ...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…
... ?
A2, e.g. IN 3 or IN 251 = ?
A3, e ... .g. IN 7 or IN 247 = ?
A4, e ... . IN 15 or IN 239 = ?
A5, e.g. IN 31 or IN 223 ... = Kempston Joystick, various
A6, e.g. IN ... 63 or IN 191 = ?
A7, ...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…
... input (like you do with IN 31) and decoding the high byte ...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…
... input (like you do with IN 31) and decoding the high byte ...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…
... . If you've just programmed in an IN 31 in machine code, the high ... the one you have plugged in. Just like my alternate keyboard ... A3, then it's on IN 7, or various other combinations ...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…
... you've just programmed in an IN 31 in machine code, the high ... the one you have plugged in.[/QUOTE]
I meant ... if two were plugged in then they would both respond ... I didn't realise that IN a,(n) only sets the ... build a prototype interface in a couple of days ...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…
... is easier to build in hardware (as in one-bit 'decoding') then ... of Joystick #1 for all IN 31 reads, for compatibility.
in there (at least, on a ...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…
... is easier to build in hardware (as in one-bit 'decoding') ... Joystick #1 for all IN 31 reads, for compatibility.[/QUOTE]< ... I was thinking about that in the car earlier, it ... way of getting four sticks in there (at least, on ... the elements worked out in my head so I ...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…
... the Kempston joystick port on IN 31 (Kempston) and the diverted Sinclair ... one on IN 61423 ($EFEF) instead of IN 61438 ($EFFE). All ...Kempston (joystick) keyboard??Dear all, I am playing with an idea to have a Kempston keyboard. The wiring would be the same as Kempston Joystick to meet its standart, so that all…
... on it. You would use IN 31 to read them, but you ... />
Then you could plug in 8 joysticks, or you could ... /> At least, being based on IN 31, it would work on a ... so they respond to IN 0xEF instead of IN 0xFE, but that ...Kempston (joystick) keyboard??Dear all, I am playing with an idea to have a Kempston keyboard. The wiring would be the same as Kempston Joystick to meet its standart, so that all…
... on it. You would use IN 31 to read them, but you ... />
Then you could plug in 8 joysticks, or you could ... /> At least, being based on IN 31, it would work on a ... so they respond to IN 0xEF instead of IN 0xFE, but that ...Divide: problems with SNA files and upgrading EEPROMHello everybody, I am new at the forum. My name is Fernando, first of all thank you to the admins to give me access and the opportunity to participat…
... =44130"]THIS[/URL] thread for Velesoft's write enable/protect utility ... goes fine.
[QUOTE=velesoft]In root directory of your disc ...FREL Comcon Programmable Joystick Interface not working on 128k but on 48kAnother day, another problem :-) My FREL Comcon Programmable Joystick Interface [url]http://www.worldofspectrum.org/infoseekid.cgi?id=1000070[/url]…
... . So Kempston joysticks (IN 31) work, but keyboard reads (IN 254 etc.) won ...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…
... use IN 63 instead of IN 31 (no-one has a built-in DK ...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…
... Microelectronics telling everyone to use IN 31 (#1F) to read Kempston. ... had told everyone to use IN 223 (#DF), to ... original Fuller interface, because IN 31 sets A7 low. And ... would still respond to IN 31 and clash with a ... read it with IN #F7, not IN 7, so I ...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…
... Microelectronics telling everyone to use IN 31 (#1F) to read Kempston. ... .[/QUOTE]
IN 223 is in collision with kempston mouse ... the original Fuller interface, because IN 31 sets A7 low. And ... it would still respond to IN 31 and clash with a normal ...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…
... joystick interface anyone ever bought in the 80s only checks for ... use IN 31 or IN 223. It even responds to IN 0 and IN 1 ... to respond to IN #F7 (247) or maybe IN #3F (55) (where ... decoding. So is using IN #3F or IN #F7 going to clash ...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…
... up to 8 joysticks, using IN 31 but then using a low ... bit in the high byte to select ... the special interface is plugged in.
But here's ...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…
... up to 8 joysticks, using IN 31 but then using a low ... bit in the high byte to select ... the special interface is plugged in.[/quote]Well yes but that ... ULAplus before it was supported in emulators, let alone real hardware ...Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …
... experiments is usually done in Machine Code by means ... using the BASIC command IN 31. But I want go ... Response Block' are found in chapter 5 of the System ... ready flag, are found in the Hardware Reference chapter ... now, I can type in the following BASIC program: ...What would you do with four joysticks?Anyone got some inspiring ideas for four-player games, or twin-stick two-player games..? I can think of, for four players: [I]Warlords[/I] (Atari) […
... br /> The Fuller standard is IN 127, but it detects it ... convention to read Kempston is IN 31 - this means the ... you can only get built-in Sinclair and Kempston.
... 'Tronics interface to do IN #EF on the Sinclair ... a second port or an IN-55 switch option.
...idea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …
... a few gates for decoding IN 31 or whatever.
For ... transfer data to the Speccy in parallel rather than serial?using the raspberry pi for the zx spectrumI just saw where they are now using a Pi to emulate a floppy disk drive for the Amiga. So it got me wondering if this could be done for the ZX Spectr…
... : when the Spectrum runs an IN 31 instruction to read the joystick ... , it pushes the port number 31 onto the address bus; the ... respond with the correct value, in the space of a couple ... do something so timing-sensitive in software running on a RasPi ...Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…
... few questions:
In the second sketch, I'd ... byte? I've always seen IN 31 return 0, not 32, ... they were so lazy in not doing full decoding...< ... (lazy style, one IN 31 and one IN 55), one chip could ...
But anyway, I picked IN 55 as an alternative so ...Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…
... byte? I've always seen IN 31 return 0, not 32, ... for the joystick common. In the real interface that I ... they were so lazy in not doing full decoding...[/ ... (lazy style, one IN 31 and one IN 55), one chip could ... and would then respond to IN 55.[/QUOTE]Yes. All ...Please explain how a Kempston interface circuit works.Can someone help me understand how a Kempston joystick interface works, as I want to design and build my own as an experiment. I understand switches…
... line with an IN 31, and another with an IN 55. So one ... to a second fire button in your code. At the moment ...
