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ZX Spectrum upper RAM module (4532/4164 replacement)Following the [URL="http://zx.zigg.net/LRR/"]lower RAM replacement module[/URL], there have been quite a lot of requests for something similar for th…
... could be operated while the case is closed.
I ... isn't executing anything from upper RAM, this switch could be ... without any ill effect. The upper RAM should even retain its ... -
The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... passed.
However the upper tests revealed 4 of the ... upper RAM chips as dead, these ... have the problem that the case looks like crap:
case plastics with tyre dressing gel ... -
Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... didn't even have lower case characters in its character set ... it was stored as upper or lower case. Quite shocking really :)
Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... didn't even have lower case characters in its character set ... it was stored as upper or lower case. Quite shocking really :)
Understanding DRAMI think I am going slightly mad. My hardware knowledge has got more rusty than it should have done, and I am going to have to turn to the experts to…
... solder jumpers related to how upper DRAM is accessed: OKI/TI ... 32Kbits each, selectable by the upper column bit. One of them ... this time, selectable by the upper row bit. The working one ... input).
In either case, you'll end up with ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... the compressed block. In this case I suggest using "normal" ZX7 ... decompressed to either screen or upper memory as needed. This way ...Basic sourceAre there any utilities available that will extract Basic source to a text file, or insert it from a text file into any of the common formats lie z80…
... case correct the error, ENTER, EDIT (to switch back to the upper ...Basic sourceAre there any utilities available that will extract Basic source to a text file, or insert it from a text file into any of the common formats lie z80…
... case correct the error, ENTER, EDIT (to switch back to the upper ...ANN: Spud v0.230Ok, another new Spud... [URL="http://bit.ly/16OFkuQ"][COLOR=#0066cc]http://bit.ly/16OFkuQ[/COLOR][/URL] [quote] v0.230 ADDED: Options. When selec…
Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... . A rough estimate for this case would be as follows:
upper border, then adjust the previous ...Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... />
In a more general case, the "rolled loop" [B]PUSH ... using [B]LDI[/B] during upper border scan, and some variant ...Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... /> [quote]In a more general case, the "rolled loop" [B]PUSH ... using [B]LDI[/B] during upper border scan, and some variant ...Incapacity benefit medical and welfare rightsI've been on incapacity benefits for about 10 years now and in that time I've had 3 medicals. The last one was just last month. Every time I'm decl…
... Tribunal to appeal to the Upper Tribunal.
* October 2012 ... to the Upper Tribunal.
* October 2013 - Upper Tribunal judge ... entering a request for my case to be reassessed, I ... almost 400 pages of case notes and spent untold ... they had a good case.Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
... , I removed the chips from upper 32k and I also removed ... that this was already the case before I touched it.
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
...
or %00100000 ; ignore letter case
cp b ; variable found ... subtraction
ld hl, (p_ramt) ; upper value to HL
sbc ... hl, de ; subtract from upper value
jr nc, clear_2 ...Say a naughty word and Microsoft ban you!I thought this was a joke, but there's lots of people apparently going through it, some even posting about it on the official Xbox forums; [COLOR="b…
... woman in the game in case they are deemed immoral or ... Spencerx), or alternate between upper and lower case (ThE kInG oF gAmInG ...PROBLEM. reading a grid 1000*1000*1000 or biggerHere is a nice problem to think about. You have a grid of boxes 1000*1000*1000 (or bigger) and you are at the center of that grid at say 500,500,500…
... the y direction (in this case, 1000). Subtract 1 to step ... the x1, y1 coordinate of upper left and x2, y2 coordinate ... of upper right just loop from x1 ...Help a small machine code game.Hello all you clever wossers are there any GOOD?? games that are in machine code (no basic apart from the loader,rnd usr bit) but are very small ma…
... due to the coding in upper memory.
ZX ...
Wiwo Dido and the case of the broken timemachine
Wiwo Dido, the case of Mazeddy's Castle
"Freezes" on program loadingHi! I have ZX Spectrum+ (Issue 6A), and recently it has started to freeze w/o returning an error (but keyboard works) on program loading, regardless …
... in case some system variable becomes damaged due to an upper RAM ..."Freezes" on program loadingHi! I have ZX Spectrum+ (Issue 6A), and recently it has started to freeze w/o returning an error (but keyboard works) on program loading, regardless …
... in case some system variable becomes damaged due to an upper RAM ...Learning a programming language from scratchSome advice please... At work I use an Excel/Calc spreadsheet of my own making to get address information from various csv/txt files I download ever…
... ].strip()
this_potential_postcode = this_potential_postcode.upper()
potential_postcodes.append(this_potential_postcode)
# 50% chance of lower case letter
if random.randint ...Printed ZX Printer beltsImre Jakli from Hungary sent me some interesting pictures which I think are worth to share. These are about replacement belts he printed for the ZX P…
After finishing the DivMMC Enjoy case I had some time to ... the problem transferred one layer upper. :o Now the material rumbles ...1984-2014here I will account for my journey through games released thirty years ago, just like last year for 1983 games, and you can do the same.
... make anything simple on it) case of navigating yourself to the ... that the item in the upper portion of the screen was ...Another "untested" dead spectrum...Hi, I'm looking for some suggestions on a faulty Spectrum I have picked up. I'll need to wait until tomorrow before posting pics, but the screen is …
In this case, my second suspect after the ... power supply would be an upper RAM IC interfering on the ...The Spectrum Resuscitation ThreadKicking off this thread as a place where people who are fixing/restoring Spectrums (or indeed any other piece of related hardware) can show off their…
... socket joints and changed the upper memory RAM chips and I ... 's also missing a few case screws and the screw that ... the motherboard into the case bottom. A new case bottom wouldn't ...New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... gameplay more obvious in this case would take away part of ... , I give up". In this case, this "misleading" aspect helps make ... try to rationalize it, each upper floor has 1 "joystick switch ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... they run at 60Hz, the upper border and total interrupt times ... completely different, so in this case only, option 2 is the ...DivMMC EnJOY! v2014.1Teaser: [url]http://www.youtube.com/watch?v=ea036HH25f8[/url] This is the board version that is designed for the custom case which is worked on at t…
... read this Thread. In my case one of the things is ... :
From ZX48 BASIC the upper screen part shows a SD ... /> So for the picture below; upper screen shows "current directory" listing ...Mint Issue 1 Speccy![URL="http://www.ebay.co.uk/itm/111323666336"]Here[/URL], 99p start
... said it is inside the case and no way to see ... as it is on the upper side of the board. Many ... real dimensions. That was the case with DivMMC Enjoy!... Ben have ... me I've made the case design and printed the first ... by 2 mm in the upper part of the box. It ...
