-
Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…
... the game in the default 128k mode it would freeze when ... BASIC the interrupt routine expects there to be memory paging code and ... -
coding guruOk I'm looking for a to help me in my quest to do my first proper game. The 80's child in me thinks he can do it, But the 2013 man in me knows zip. …
... a 128k game.
Ie.
1 page ... better compression.
1 page for graphics, sprites and ... text
1 page for screen swops
... 1 page for all codes+ compile
memory. fails me as where ... -
SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... Tonibaker made a ZXprinter on 128k driver in the streams& ... ]
I suspect Toni's routine still calls the original ROM ... yes, you could CALL the routine.
[quote]What can a ... RST8 error which will then page in the +D or DISCiPLE ... -
Another vertical scrolling questionwhile talking about w256 x h128 vertical scrolling, are 128k modes have any advantages over 48k models? has extra ram or swappable screen buffer any…
... to page the work screen in at the top of memory, leaving ... scroll better/easier/faster on 128k. Except the obvious buffer advantage ... -
SoftPLAY: Use the PLAY command from 48 BASICNow you don't need 128 BASIC to use the [B]PLAY[/B] command. Just use [B]PRINT #8;[/B] instead. [url]https://dl.dropboxusercontent.com/u/15659782/So…
... address #2000-#3FFF (divide ram page) ?[/quote]
Yes. What ... #0009 is connect DIVIDE rom memory. We need add here detection ... UDG "U" + connect divide ram page with PLAY code + call PLAY ... way can be used for 128k ramdisc emulation.[/QUOTE]
Yes ... -
Best Demos please?Hi, I have just discovered how good the demos for the spectrum are, I have been a spectrum owner for years but apart from the work I used to look at …
... ;platform[0]=ZX+Spectrum&page=1&order=views[/url ... the titles on the first page, only one is using hardware ... version of a 128k Spectrum that has no memory contention (which makes ... -10% faster than a typical 128k machine). There are also other ... -
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…
... /> [CODE]
;Biturbo 2 loading routine
;by Giovanni "G.B ... )
CALL 65355 ;Calls loading routine
LD IX, 24576 ;Address ... number of bytes lower in memory to make room for extra ... and/or multiple levels for 128K-only programs).
I ... -
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…
... interest to check the ROM routine that the Spectrum is using ... a high), the results of memory reads or writes are erratic ... user to explicitly set the page before loading any programmes. Or ... extension that would set the page on startup.
Or ... -
IF EXIST?In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not. There are any way to check it out from BA…
... to write a machine code routine to do the job; ... quite large),
this routine permits the directory to be ... required, this
routine is re-called with the ... for the directory, this routine can be
called ... top of
memory is page 0 and the machine ... -
Nasty 'Gotcha' for multicolour timingI thought I would be better developing my multicolour routine on the 48K first, being the slowest, so it would then be sure to work on the 128K varia…
... any further.
The routine is proving tricky to synchronise ... (48K, 128K, +2A), detect the machine class, unpack the relevant routine, and ... erase the others to free up memory for ... -
z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... keyscan.
That wiki page also [URL="http://www.z88dk ... LAST_K is located. The interrupt routine writes the keypresses to that ... you can create one interrupt routine to run both, one after ... :
Also keep the memory map in mind -- this is ... -
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…
... ; point to end of calc memory
push bc ; push ... routine
org 0x0bc3
pr_all_f:
ld bc, paging ; page ... -
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…
... memory
push bc ; stack counter
ld bc, paging ; page ... ; end of routine.
Spectrum CP/MHello.. Just out of curiosity, has anyone actually used +3 CP/M for any practical purpose? I remember booting it up a couple of times years ago, jus…
... be easy since they can page out their entire address space ... />
Yes, MP/M gives memory protection by running programs in ... need a lot more than 128K as well, as that's ...IX register - using/problemsAre there any rules on using the IX register? Are there any restrictions on the memory locations that it can access? Yes, I know it's slower than us…
... or block/page of memory on either the 48k or 128k (correct me ...Timex TC2068 ROM dump help.Hi, can someone point me how can I dump a Timex TC2068 rom. I want to try it on my machine for replacing a rom on other broken TC2068. Thanks, Chapas
... your PC. The tape save routine is in the EXROM so ... copy it to a higher memory location, eg 32768. A small ... , 8192. Another method is to page the EXROM into one of ...Timex TC2068 ROM dump help.Hi, can someone point me how can I dump a Timex TC2068 rom. I want to try it on my machine for replacing a rom on other broken TC2068. Thanks, Chapas
... your PC. The tape save routine is in the EXROM so ... copy it to a higher memory location, eg 32768. A small ... , 8192. Another method is to page the EXROM into one of ...What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…
... Clock, or maybe a Free Memory display, either of which would ... the ONERR routine, and will therefore only work on a 128K Spectrum ...128k gamesHi. I've come to World of Spectrum for advice. I'm a Commodore guy OK, please be nice to me, as I seek your wisdom! I love the Commodore 128, and I'…
... page the top 16K of Spectrum memory on the 128K ... page in the 16K that held it into the top of memory ... memory where you can put your graphics and code, on the 128K ... four uncontended (fast) memory blocks, but with no ... developers used the 128K memory as little more ...Which Emulator supports Betadisk48?Hi out there and happy new year, I'm looking for an emulator to run with my vision1.7 trdos-rom in 48 mode. Unfortunately most emus only support Bet…
... the AY routines from the 128K version!
[code]
memory area between 15360 and 15615 ... /> 15484 (3C7Ch) - Entry Point to "page out" the EPROM DOS. Preserves ... and probably crashes on the 128K by trying the same over ...****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…
... on where things were in memory.
[/QUOTE]
... fe80-fefe dzx7b+drcs decrunch routine
feff-ff00 always ffff ... /> fc21-fc9f dzx7b+drcs decrunch routine
fca0-fdff Y coordinates ... 48K is very different from 128K so it's very ...PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
... differences between the 48K and 128K that could cause the problem ... /> I disabled letting the PlusDlite page in when adress 102 (#66 ... in not running the NMI routine, but still the booting sequence ... be the reason the NMI routine is performed (the PlusDlite ROM ...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…
... page four 4k banks into the bottom 16k of the z80 memory ... ignores the rest of memory or the hardware. Obvious ... code and the print routine, but things like the ... not necessarily possible to page into that space easily ... off the spectranet's memory and is between it ...Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... you get an alterVista white page with a [I]"La ... User Megatape 14
[*]Frightmare 128K - Zafiro
[*]Geoff Capes ... URL] by Zup (please note: routine needs to be compiled).
[*]Fairlight 128K: Crashes after initial screen. [URL ...IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…
... there was a problem with memory. As you can run the ... the stripey screen when you page in the ROMs there may ... . If you are using a 128K and +2 spectrum, you DO ...Calling people with Diagboards.....and who have toastracks or grey +2's with all socketed memory :) I'm finishing off modifications to the Diagboard firmware to expand its testing c…
... /> [*]Inversion test (does setting a memory location affect the locations around ... upper 32K of RAM
[*]128K - pages in all banks except ... can be paged out, will page the Spectrum ROM in.
128K memory, I'm all ears though ...Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... even better indication. My alignment routine runs a tight 8 t ... attributes being pushed to the memory happen on only some cycles ... clones are reading the screen memory earlier (essentially, due to ... the behaviour of classic Pentagon 128K once and for all, but ...Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... and the sram is now 128k x 16bit
I ... foreground
64k of memory that can contain user defined ... just after the draw screen routine and before it calls the ... display panel routine.
[youtube]I24Mh5atMII[/youtube ...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…
... original implementation with a new routine that draws directly to screen ... raster beam render routine with a new empty routine that just ... for synchronisation and the 48K, 128K and +2A will vary ... at 16384. Since all memory is effectively uncontended from the ...Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... device even work on a 128K? If so, then, like SPECTRA ... to the 128's own page-swapping OUT port and, if ... it hears that page 5 or 7 is paged ... have to sacrifice your upper memory to exploit it.
