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Saving and loading data in assembly.I want to add a save and load feature to an project I'm working on. Since it's not that much data in size I thought I'd use the ROM functions, but ho…
... ld de, #11
xor a
call save_data_block
... ld de, (data_length)
ld a, #FF
call save_data_block
a
out (#FE), a
ei
ld a, #7F
in a, (#FE)
Saving and loading data in assembly.I want to add a save and load feature to an project I'm working on. Since it's not that much data in size I thought I'd use the ROM functions, but ho…
... /> xor a
out (#FE), a
ei
ld a, #7F
in a, (#FE)
a regular load errorOpus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... "toeplate" to support a bigger keyboard say for a 128k Spectrum +2 ,Toastrack ... 128k , or a 128k Speccy ... board in a Dktronics keyboard[url="https://photos ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
Trying out the Toastrack 128k in a DKTronics Keyboard.
This is where ... work so well with a "Toastrack" 128k in a Dktronics board .This is ... it in and turn it on : it worked OK This keyboard is ... it to slide over it .In addition the right side dowel ...Speccy Retro TypologyHow many types of Speccy Retro are there?
... have I got hidden away in my loft ? Well it ... sold it off to me in the "great Speccy sell ... . It is Spectrum in a Dktronics keyboard set up for Microdrive ... br />
It is a hybrid because it combines Sinclair ... product . So it is a a type of "Hybrid Retro".The ideal USB "emulation" joystick. I used to be happy using emulation with a Dual Shock 3 Playstation joystick . It works and has loads of control buttons that can be configured with…
... the Speccy USB keyboard adaptor :I put it in a DK keyboard and this ... works well. .This however is a different ... and educational as there is a need to understand the concepts ... and put the work in . But hey it is looking ...Clamping Speccy InterfacesThere are a huge number of broken Speccy interfaces available . I came across one on Ebay recently said to be "partly working" or similar .Why are th…
... board had been mounted in a DK Keyboard which I had recently ... .So I put in a faulty DK keyboard PCB in this keyboard .This meant the ... Speccy now needed a ... put this Speccy PCB in a new home in an ordinary case ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
Keyboard Membranes arrive.
... it was a bit loose when I plugged it in . And ... the looseness did cuse a problem . ... of the actual end "plug in" bits . (Well I " ... it up in a scruffy keyboard which has the holes needed in the ...SD Card Interfaces for the ZX Spectrum : the complete list OK I admit it : this thread will start life as the incomplete list of SD card interfaces but the aim is to list the lot
... to order a Smart Card ..Here is a link to a review of ... it can be "cased up" in a DIY case made by me ... and its appears to be a very capable device so I ... be "matched" to a Spectrum Toastrack 128k in a DK keyboard ( if it does ...Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
...
It is a bit unfortunate that this useful ... also means that Speccy PCB keyboard connectors have to be fit ... . And of course a 48k Speccy in a DK keyboard does , to some ... extent at least, under use a great keyboard ...Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…
... b,#31
ld a,#7f
in a,(#fe)
rra
ld a,#7f
in a,(#fe)
rra
ret ...Fastest way of reading from EAR portI'm trying to work out the fastest way of reading data from the EAR port and assembling the bits into a byte. I came up with this code: IN A, (C) ; …
[code]
in a,(#FE)
in e,(c)
rrca
and e
;...
in e,(c)
rrca
and e
rlca
ld (hl),a
[/code]
... or something :)Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
... I used a Tynessoft UB kit ,eventually successfully , in a DK keyboard. The kit ... had a very small PCB ... small size needed specila fitment in DK keyboard, so I had to ...Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... up on the 128 Toastrack in a DKtronics keyboard .
Reasons ... bigger and airier than a normal keyboard so the PCB itself ... old heatsink (albeit in a cut down state) is a "nod" towards ... on protecting the DKtronics keyboard setup rather than the ...Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …
... really lost honest !
In the loft I was searching ... to store a Spectrum ( in a DK keyboard ) and I came to a kiddies desk ... and stored away the DK keyboard unit that had prompted this ... />
.It appears to be a "big un" (maybe Big Brother ...In-game Screen FlickeringHi folks, today while playing 'Beyond the Ice Palace' I noticed strange behavior of my Issue 6a Spectrum+. When I pressed '2' (for UP) + 'O' (for …
... ="Vaylo;920393"]
6) Rubber keyboard from 16KB Speccy does not ... shown occurs when you plug in a different keyboard? I mean, does swapping ... the keyboard actually fixes the issue for ...ive found an attr scrolling routine but i want to remove the smaller scroller within it, etc.https://pastebin.com/K4nG3xbX also i would like to be able to change the colours and not have a shadow. http://www.worldofspectrum.org/pub/sin…
...
XOR A ; FA1D AF
IN A, ($FE) ; check for a key
CPL ... /> LD (L_FB76), A ; increment m2counter
CP $08 ; FB3A FE 08
ive found an attr scrolling routine but i want to remove the smaller scroller within it, etc.https://pastebin.com/K4nG3xbX also i would like to be able to change the colours and not have a shadow. http://www.worldofspectrum.org/pub/sin…
... A, $3E ; A =attribute byte for attribute scroll (1)
[/code]
In ... ]
XOR A ; FA1D AF
IN A, ($FE) ; check for a key
CPL ...Post launch "unofficial" and creative new approaches to using the ZX Recreated Spectrum..So a line can be drawn under the "old stuff" used to market the ZX Recreated Spectrum at launch as this has already been extensively documented . So …
... these keyboards apart and put a zxuno or Rpi board inside ... ?... I heard rumors when the keyboard was first being developed that ... hard would a rpi with zxbareemulator installed fitted in a rzx keyboard be to ...Recreated Spectrum .What do we get for the "now" (Aug 2017) best retail price of around £35?Well best/ cheapest retail prices can vary a bit so I thought it best to be specific. At this £35 price ,is it a good deal and what do we get ? A…
... one of these set up in a DkTronics keyboard set up about 2 ... I will give it a whirl in the next couple of weeks ... . How will the DkTronics keyboard perform compared to a ZX Recreated Spectrum?Recreated Spectrum .What do we get for the "now" (Aug 2017) best retail price of around £35?Well best/ cheapest retail prices can vary a bit so I thought it best to be specific. At this £35 price ,is it a good deal and what do we get ? A…
... Tynemouth USB kit in a DK keyboard .(previously only used with a PC - the ...Spectrum USB KeyboardI know you can buy these but how do you make one . What I am thinking of be similar to the type described in Issue 1352 of Micro Mart at page 45 .The…
... old Tynemouth USB kit in a DKtronics keyboard I have to try ... " to being taken over in this way .So years ... So I buried Fuse deep in my PC as I thought ... want to use my DK keyboard with USB kit ,I ... . (nothing like being grateful for a "freebie" is there?)
...Which ZXSpectrum Software Title was Reissued the Most Times including Cassette Label Improvements ?And ,of course including , being reissued by different software companies . So this is an "all variation" questions including all the small updates ,…
... miss the importance of such a KEY benefit!
Later ... with my Tynemouth USB PCB in a DK keyboard . Although this is set ... appear to work properly using a "mere" PC keyboard .Spectrum USB KeyboardI know you can buy these but how do you make one . What I am thinking of be similar to the type described in Issue 1352 of Micro Mart at page 45 .The…
... one in a DK keyboard
3) I have a v2.5 one in a ... ) as per above now in the Plus keyboard. . The PCBs on ... the Plus keyboard.
This kit uses a special keyboard membrane ... Time to take a look inside the Plus keyboard . Sorting out the ...Spectrum USB KeyboardI know you can buy these but how do you make one . What I am thinking of be similar to the type described in Issue 1352 of Micro Mart at page 45 .The…
... it with the Spectrum Plus Keyboard.
I ... controller . The USB keyboard's job job was ... made to actually fit in an original old Spectrum ... PCB was totally different in size being long and ... be set up agian in a DKtronics keyboard. But the version ...Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
... a while . The plan then was to get the USB keyboard kit (in a ... DK keyboard) plan back on track ... DK keyboard.
I saw a likely second hand DK keyboard on ...Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
... for keeping it in a DK keyboard is that the PCB keyboard connectors will ... have already been "splayed" out so that a ... connector will no longer make a good contact . So the swap ... figure out how to do a ZX81 ply baseboard.
< ...Dk'tronics and other similar "add on" Speccy keyboards . What can be done with them and when?. The underlying assumption I am making here is that people who have them will want to "hang on" to them and may also want to get them working . But …
Getting a Towards Reasonable Way To TEST ... is that the keyboard connectors on the DK keyboard widen out the ... out" in this way . I have a Sinclair 128 in a DK keyboard in the loft ... that . When it was put in the loft about 2 years ...Miscellaneous ZX81 stuffI was not sure where to put this . As it is not Speccy related I had a dilemma . Should it go in Chit Chat . But then I had a better idea : if I call…
... before setting it up in a DK keyboard .So testing it before ... />
Hopefully all mo keyboard testing "odd effects" (as per ... my keyboard testing "go's at it earlier in this ... find an online ZX81 DKtronics keyboard manual (the Speccy one ...Miscellaneous ZX81 stuffI was not sure where to put this . As it is not Speccy related I had a dilemma . Should it go in Chit Chat . But then I had a better idea : if I call…
... obviously before setting it up in a DK keyboard .So testing it before ... for a Zx81 version of the DK keyboard manual . The scanned version in ... 128 +2 motherboard for a remaining Speccy DK keyboard . Luckily these are ...
