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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…
... this is not full address decoding, and that technically it should ... to do both the logic decoding and the data delivery?[/QUOTE ... br />
Condition 2, address decoding. A correct system of address ... decoding is one where 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…
... to do the read/address decoding as to do the signal ... -
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…
... to do the read/address decoding as to do the signal ... -
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…
... lazy in not doing full decoding...
Which makes me ... ), one chip could do the decoding for both, then only two ... that point for slightly improved decoding.
But anyway, I ... -
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…
... ?[/QUOTE]Correct, still only partial decoding, but better than just using ... lazy in not doing full decoding...[/QUOTE] :???: If a buffer ... one chip could do the decoding for both, then only two ... better (but not full) address decoding :razz:. Then you can eight ... -
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…
... better (but not full) address decoding :razz:. Then you can eight ... -
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…
... (in which case full address decoding, or nearly so, is recommended ... . One design does full address decoding, but cannot provide a 7 ... -
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…
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I finally understand the decoding chip (from sketches of it ... chip (they are not the decoding value). Where the A5-A7 ... . So, for middlingly crude address decoding I could connect A3, A5 ... -
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…
... , that full 8 bit address decoding would be a good idea ... -
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…
the 74688 is handy for decoding speccy addresses especially if you ... -
Cleaning a Currah microslot,Odd one this, I guess... For my main spectrum (my original 16k Issue 3 upgraded to 48k and put into a + case), I am hoping to set up the following c…
... Sinclair one address bit partial decoding (and the Alphacom likely does ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... byte and bit to start decoding from.
The decode ... and c are updated for decoding the next symbol
; uses ... -
Compact Flash Card In "Memory Mode" - (Help)Hello my fellow WoS'ers I have been developing a Z80 8bit interface with a compact flash card port based on Pera's ZXCF "memory mode" interface for …
... /> So I added the 'port decoding' to /RD and /WR and ... -
Edward Snowden .. Enough allready?It seems almost bi-weekly Edward Snowden reveals new insights into what the NSA were spying on. However, its now getting to the point where I'm star…
... and the whole Enigma/Ultra decoding stuff that went on during ... -
Refactoring the ULAplus HDL descriptionFor the ZXUnio project, I'm refactoring the Verilog code I wrote two years ago to describe the ULA and the ULAplus devices. When I've taken this code…
Hi, mcleod_ideafix. See my proposal for decoding the signal TimexConfigLoad: [url]http://www.worldofspectrum.org/forums/showthread.php?t=46581[/url] -
ZX 48 sound card , sam coupe audio chipPrototype done and working (thanks for Velesoft for schematic). [url]https://www.youtube.com/watch?v=RtsW1QZjHVs[/url] PCB done and ordered in PCB …
Hi, zaxon. See my proposal for a decoding ports SAA1099: [url]http://www.worldofspectrum.org/forums/showthread.php?t=46581[/url] -
Refactoring the ULAplus HDL descriptionFor the ZXUnio project, I'm refactoring the Verilog code I wrote two years ago to describe the ULA and the ULAplus devices. When I've taken this code…
I'm currently decoding it the "normal" way, that is, lower 8 bits of CPU address = 0xFF. I'm not implementing SAM Coup? sound system by now. If your scheme doesn't break any existing software that uses Timex extended video modes, I will implement it :) -
Refactoring the ULAplus HDL descriptionFor the ZXUnio project, I'm refactoring the Verilog code I wrote two years ago to describe the ULA and the ULAplus devices. When I've taken this code…
... =mcleod_ideafix;753673]I'm currently decoding it the "normal" way, that ... it :)[/QUOTE]
My decoding scheme does not violate the ... to existing software Timex. Additional decoding is enabled only when an ... -
Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... anything at ports $1ffd or $7ffd, it will crash.
- AY ...Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…
... that provided nothing except port decoding and an IDE port you ...A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... anything at ports $1ffd or $7ffd, it will crash.
- AY ...Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…
... that provided nothing except port decoding and an IDE port you ...Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…
... that provided nothing except port decoding and an IDE port you ...+2 Grey strange beepingthe beep comes out of speccy's sound output (TV box), only when some sound output already started. eg. on 128basic, press a key and key click sound …
... more like the I/O decoding is accepting writes to the ...4294967296 pseudo output portsIn an effort to avoid any hardware conflicts with the clashbasher interface I've been looking for an alternative to using the spectrum's ports for ou…
... to be considered with the decoding.
I wanted the ... haven't used M1 for decoding opcode reads. I've double ...4294967296 pseudo output portsIn an effort to avoid any hardware conflicts with the clashbasher interface I've been looking for an alternative to using the spectrum's ports for ou…
... it that your system of decoding IO requests is equally compatible ...
