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Most engrosing Adventure GameThis is one for all you text adventure lovers. Of which I am one. I remember reading those Fighting Fantasy books when I was a kid. The ones where y…
... is to the area of memory taken up by the editor ... stop you paging in a 128k ram bank.
[/quote]
Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…
Erm..another novice-like question: if you were to use memory bank switching in 128K, did it help in faster scrolling? In other words, did 128K allow programmers to do scrolling faster and/or better?Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…
... you were to use memory bank switching in 128K, did it help in ... scrolling? In other words, did 128K allow programmers to do scrolling ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... eZ80 specific code to emulate bank selection of memory using the 24 bit ... address bus and just bank select the memory like the old CPC ...Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …
... [/I] make it check the 128K memory banks but it'd be ... answers. +2 manual says that bank 2 starts from 32768. Should ... in same order IC17,IC18 = bank 0, etc..?
[quote ... 22 if they make the bank 2.
Cheers
Faulty 128KI digged out my Spectrum 128, and it wakes not up. I don't have experience, only with 48K. Maybe someone can give me some hint, clue. It looks like m…
... ROM for 48K or 128K Speccies?
Does 128K starts in 48K ... /> It works on 48K or 128K... One of the vertical bars ... 128K memory banks. It'll be black if there's no upper bank ...ZXLFN - storing tape header in a long file nameHi lads ;) Couple of months ago, the group of guys interested in divIDE software development has came up with an interesting idea - store tape heade…
... just blit the data into memory as appropriate.
I ... 128K RAM bank which isn't paged in? (ditto Timex, interface-specific memory ...ZXLFN - storing tape header in a long file nameHi lads ;) Couple of months ago, the group of guys interested in divIDE software development has came up with an interesting idea - store tape heade…
... 128K RAM bank which isn't paged in? (ditto Timex, interface-specific memory ... /> As for loading into different 128k banks, that would need to ... load data into a memory bank unless the bank is pages in (unless ...Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…
... makes me wonder: How much memory does a Speccy have, included ... the memory used by the machine itself ... ] in Speccy is divided. Spectrum 128K also has only 48K available ... />
The key is in memory bank switching!
And it ...Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
... , the other for the ROM bank register
- 1 x 74HC32 ... with port 63, and the memory bank with port 31 (bits 0 ... to 4 select the memory bank, bit 5 controls whether the ... menu system to allow easy selection/loading of a 16K rom ...Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... into three different real-world memory failures with 4116 RAM.
memory chips from two Spectrums that ... by faulty row/column address selection in the chip - if ... -random fill test - the entire memory bank is filled with a pseudo ...Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... by faulty row/column address selection in the chip - if the ... s logic has failed, the memory address being influenced when you ... be a whole raft of memory locations getting influenced). My final ... -random fill test - the entire memory bank is filled with a pseudo ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... cycle contended according to the memory contention pattern and the other ... gets all cycles contended due memory contention.
Now wait, wasn ... at it, where does the 128k behavior fit in? I mean ... when there is a contented memory bank paged in? How could ULA ...What was a Z80 computer capable of ?I have always wondered, and maybe the techy people on here could answer, with what you know about the Z80 processor, was the spectrum hampered by the…
Well, I'm a n00b about this stuff, but in the 128k Speccys....with it's memory-bank-switching....are there any more available memory for graphics ?What was a Z80 computer capable of ?I have always wondered, and maybe the techy people on here could answer, with what you know about the Z80 processor, was the spectrum hampered by the…
... , but in the 128k Speccys....with it's memory-bank-switching....are there ... any more available memory for graphics ... one new feature that the 128K provides for graphics is a ...Memory paging in 128 KB - 64KB RAM possible?I have found a quote in Spectrum 3 manual (available at WOS) -------------------- In the +3, we have crammed in more than twice the amount of memory…
... swap the ROM for either memory bank 0 or 4.
128K programming specs)
[URL ...Hacks to improve existing gamesDoes everyone remember those hacked versions of Commando and Action Force II that had AY soundtracks hacked into them? How about hacking some other …
In Zub 128k, make the sprite animations work ... the sprites to an unused memory bank (any of 1/3/4 ... of room for code in bank 0 where the sprites are ...Hacks to improve existing gamesDoes everyone remember those hacked versions of Commando and Action Force II that had AY soundtracks hacked into them? How about hacking some other …
... =John Elliott;315568]In Zub 128k, make the sprite animations work ... the sprites to an unused memory bank (any of 1/3/4 ... of room for code in bank 0 where the sprites are ...Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…
... mode but with all the 128k memory and bankswitching still fully operational ... this command will disable 128kB memory and will available only ... in 128K mode the Spectrum uses some more bytes in Bank 7 ... afaik, for the RAMDisc feature and other 128K stuff ...Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... were due to this memory allocation copied an pasted ... plan ahead. On a 128k machine a good approach ... music data in another memory bank. The music isr will ... the 128k spectrums (except the +3/2A) can only bank ram ... the sp1 bank but in its own memory bank. So it ...This Is Your (Gaming) LifeHi there spec-chums. I'm in an inquisitive mood, and feel like doing a bit of writing, so I was wondering if you folks would like to share the story …
... envying to friends who had 128k models with awesome sound led ... resembling my Spectrum to 80k memory model compatible to Didaktik Gama ... it was almost compatible with 128k, but you had to change ... was in second memory bank as it was on 128k, but the levels ...Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…
... TO BE USED ON THE 128K VERSION
50 poke ... loading all the files into bank 0, rather than the ... [/CODE]
and finally load bank 0 over the top.
memory paging that BASIC expects
memory bank set up.+3 how to detect if a file exist ?Need help. I am making a generic menu to my compilations over the spectrum +3. Exist some way programatically to detect if some file exists on the d…
... to be incompatible with the 128k+3. As you might have ... the 128k Speccies is even trickier than usual because of the memory bank ...Flash based rom replacement board for +2A/+3I'm sure I already started a thread about this, but I can't find it... Anyway, this post's to say that I've just sent off the order for the printed …
... interface which uses a Flash memory chip, and which in the ... by the way the rom selection works on the +2A and ... write protect switch alongside the bank selection. If anyone who's already ...zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... border color indicates you what memory bank is faulty (which I find ... the Spectrum 128K has... this is another "kind" of bank), composed each ... without any of its 128K features, the memory map you have contains ... +2 boots first with the 128K ROM (ROM 0).
< ...Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…
... . Doesnt cover the 128k at all however.[/QUOTE ... 128K ULA is identical to the 48K.
The RAM bank ... a 48K Spectrum a 128K Spectrum memory model? If you ... RAM with another 64K memory bank, plus a bit of ... handling provided by the 128K PAL chip, the behaviour ...Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…
... pages dedicated to the 128K ULA in the ULA ... these superficial mods, the 128K ULA is identical to the ... a 48K Spectrum a 128K Spectrum memory model? If you ... 32K RAM with another 64K memory bank, plus a bit of ... handling provided by the 128K PAL chip, the behaviour ...Japan Tsunami AppealAs some of you will be aware, I've been tinkering with an open source version of SE Basic that could be distributed with hardware without infringing …
... both sign up on pledge bank and click the 'I did ... it be used on a 128k motherboard?[/QUOTE]
Yes ... for moving stuff around the 128K memory banks). What you can't ...128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... to port 0x3ffd activates memory paging. To quote ... br /> [code];; Distinguish between 128K and +3 by looking at ... IO where a contended memory bank is paged in ... that port induces memory paging on the 128K (and doesn ... Well known bug in the 128K ULA.[/quote]
FPGA ZX SpectrumJust wonder: how many of you would buy "new hardware based" and "in case" ZX Spectrum based on FPGA? ;) [url]http://www.fpgaarcade.com/[/url]
... put it back in. The memory bank paging is such a pain ... BRIGHT bits as additional palette selection bits. Simple but effective.
