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My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... 128k ram would struggle to store the information in this page ... near because the extra memory adressing commands use ... You can maintain 128k paging compatabilty by simply ... 16mb also because the memory is cheap, and ... soldier the solid state memory directly onto a ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... the RAM1 is swopped. (Page 2 being normally resident in ... Important Ports
7FFD - 128k paging
D0...D2 ... is used as Spectrum contended memory.
D1 - selects ... that cotain each buffered page if in 320x200 mode ... -
Spectrum helpHello all I run a website which is some sort of community/game information hybrid. It's dedicated to most gaming platforms (currently 62 of them). I…
... note the significance of extra memory in these days of multimegabytes ... can only address 64k of memory. The 48k spectrum had 16k ... total addressable space.
The 128k therefore cannot by virtue of ... that extra RAM. The 128k models page the top 16k of RAM ... -
Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…
The 128k Print buffer would obviously be in the paged memory somewhere. The +3 I know uses page 7 as a scratchpad for +3 DOS.
Either this answers my question - I want to use all the RAM for M/C anyway. -
Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…
... memory and all that if you want to use 128k ... your assembler jumps and memory refrences may have labels ... into the point in memory where the assembler started ... the AY do not access memory - you have you use ... some sort of player routine rather than simply do ... -
Memory usageBrowsing the online documentation for the Spectrum I came across a peculiar discrepency. As we all know the start of the RAM is at 16384 which is whe…
... Buffer at all on the 128K Spectrum which is why it ... area for the BIG PRINT routine.
The most obvious ... variables will slide about in memory when you print.
memory at 23296.
A ... -
Spectrum Web BrowserI recall a while back that someone was developing internet software for the Spectrum for use with one of those old Prism modems. Did this ever come …
... larger than 48K, or even 128K, in some cases.
page, but keeping on memory only formatting info ... , that would mean realoading the page once you scroll up or ... -
TAP files for the TS 2068Hi, just recently bought a TS 2068 and found "Taper" on the web. Downloaded it and began to use it only to discover that it would not open TS 2068 fi…
... compatible mode. You could page flip between two screen ... built in bank selection memory management unit with the ... the included hardware. This memory management hardware made cartridges ... dispatcher to execute a ROM routine or function. Other improvements ... -
"La Abad?a del Crimen" - English versionOK, I've started a new thread for this, as the discussion about "La Abad?a" in the [url="http://www.worldofspectrum.org/forums/viewtopic.php?mode=vie…
... br />
Instructions .(back)
Page 1
LOAD PROGRAM
SPECTRUM 128K or +2 LOAD ""
In ... />
The saved positions in memory will disapear when the computer ... positions , are 1st saved in memory , which menas they will ... -
"La Abad?a del Crimen" - English versionOK, I've started a new thread for this, as the discussion about "La Abad?a" in the [url="http://www.worldofspectrum.org/forums/viewtopic.php?mode=vie…
... part.
SPECTRUM 128K or +2.?Tape Loader or ... version you save status in memory pressing symultaneosly SYMBOL SHIFTand keys ... />
Saved status in memory dissapear when you reset your ... the original tape.
Page 3
LOAD ... -
Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... russian coders wrote a routine on Spectrum 128 which ... quote]With rewriting Gasman?s routine I just want to remove ... are no problem on Spectrum 128K, I made my experiments ... game in this mode on 128K[/quote]
... to stumble on your page. but beating or not ... -
Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…
... last sequence of the copy routine, when the attributer are transfered ...
GMX is a Graphic memory expansion module for Scorpion to ... converted images directly into texture memory for greater speed. You ... happened to stumble on your page. but beating or not ... -
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…
... now and your 11 page thread is triggering off ... /> "Probably a memory thing. Lack of memory was always a problem ... game into
memory, but that's pretty ... ever any plans for a 128k version?[/B]
memory.
[B] ... -
Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... in an alternative sprite draw routine for drawing sprites without any ...
[quote]
3. Use 128k bank-switching.
[/quote]
128K machines. If you choose ... at a different location in memory.
[quote]
... -
compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …
... screen space so you can page RAM 7 into the top ... as RAM 7 leaving the memory map as:
ROM ... it a try on a 128K(-emulator) and give me the ... -
Is spectaculator emulating the +2 correctly?i remembera few games that would crash when running in 128K mode, due to a bug in the hardware of the grey +2, hence it being replaced with the +2a. …
... fingers on a toast-rack 128k machine.
i was ... on the other page). this is all from memory, so forgive me ... first hand to a toasty 128k...
i still think ... -
Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…
... s Bobsleigh
codes page. Hope he doesn't ... Where Genie says input page in and out values, ... 3 at memory location 40000
Memory location 40000 ... of writing this similar routine but this should give ... had found the lives routine whilst hacking as ... -
Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…
... , b00mzi11a wrote:
your page seems to be not working ... byte table containing interrupt service routine addresses. By convention the 8 ... end of your interrupt service routine you should reenable interrupts. ... . 17 cycles is from memory as I can't find ... -
POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…
... was. The POKEs on this page are useful, though I've ... "1!PL-!1;2". This routine could be used to scroll ... case reports" which all the 128K models had.
RANDOMIZE ... -
Tough paging questionOK... Take this: 1. We have a program compiled and run from within GENS under a Pentagon 128K environment. 2. The program works perfectly. 3. We sav…
... = used (almost entirely)
Page 2 = obviously used (#8000-#BFFF ... break-pointed the sprite-putting routine just before it changed ... page did indeed change, but the target data (viewed in the Memory ... with the Pentagon and the page changed OK !
... -
+3 questions, easiest way of playing games?Yes my old 128K spectrum didnt seem to come alive, so I bought a second hand Spectrum +3 on an auction site, it wasnt cheap! but wtf nothing beats th…
... there a way of playing 128K stuff from floppy or HD ... to load each page of the 128k snap shot to memory. That's ... a tape lead from a 128K?[/quote]
I think ... -
Game Editor questionI'm currently updating my image utility - TommyGun and my old Map editor, which I haven't released on WoS yet. My question is this. Would people li…
... program. If the library routine itself contains more LIB declarations ... binary. Importantly, each library routine is attached exactly once to ... command, you specify where in memory these segments lie.
... > 64K like the 128K Spectrum. Right now there is ... -
Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??
... [quote]
Ram pages in 128k
[/quote]
How do ... that more than 64Kb of memory should have been addressed?
128k machine. :)
[ ... remember:
1) division routine error. should have DAh instead ... -
Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…
... try to put together a routine to play back a single ... be impressive.
Yeah, memory is definitely a big consideration ... . Adding support for the full 128K would be another layer of ... CPU time?
The memory contention (fast/slow RAM) of ... -
EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... /> Robocop loads in full in 128k mode :),
so indeed you ... Vladimir) can overvrite the new memory map.
So I would ... from the spec256 emulator download page ? I don't think the ... popular !!!
Besides, that Spec256 page may not be up for ... -
new programmer needs information hi , i have been learning c++ for a while and am trying to make games using windows but being 28 and nostalgic , i thought it would be fun try and f…
... card - just a memory mapped display. Memory from 16384-23295 contains ... the examples link on the page above, you'll get ... 254.
The 128K spectrum added some improvements, including ... the programmer introduction on the page above as well. Written ... -
TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…
... game into memory. Multiloaders in TAP-file using the ROM-routine to ... . By this alteration/adding a 128K ZX Spectrum can be tranformed ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... from the data bus. The memory at location 256 * I + b ... ' interrupt routine. However, this doesn't work on the 128K machines, so ... tstates to reach the interrupt routine:
* M1: 7 tstates ... you have a short interrupt routine, it is possible that the ... -
Basic corruptionDoes anyone have any tips or solutions for when a Basic listing becomes over a certain size and starts to get corrupted due to paging... I remember …
... 128K BASIC the operating system sometimes
writes values to main memory ... when another 16K page of memory should be active ... ) then a random 256-byte page of memory will be corrupted. Statistically ... -
need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
Optimized Sprite Routine
[code]
... of
;a 256 byte page makes addressing it
DRTABL ... ,(SPRSRC) ;source of sprite in memory (sprite is stored in such ... BC ;this part of the routine is a loop
LD ...
