World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.017s
<1234567…34>
  • 48K Memory MapHi, I'm having some trouble understanding the top of the 48K Memory Map. From reading elsewhere I have this as the memory map: 0 to 16383 - …

    ... the top of the 48K Memory Map.

    From reading ... I have this as the memory map:

    0 to ... br /> 23755 to 65367 - Available Memory
    65368 to 65535 - User ... area '23755 to 65367 - Available Memory'

    Also what ...
    jonesypeter jonesypeter March 2016 Development
  • Memory Map/ContentionHi I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scrolling…

    ... ask is this a correct map for memory contention?

    Address ...
    5B00-7fff 08k Contended Memory
    8000-FFFF 32k Fast ... Memory (well normal memory really :) )

    Cheers ...
    ZJones ZJones September 2006 Development
  • What should be the base address to set for my codeHi, I am new here and I have a simple question but one which I have not found an answer to. When I am developming my programs what should I set th…

    ... information I have for the memory map for the spectrum and I ... that the area of the memory assigned to machine code can ... the machine will have a microdrive, etc and and start it ...
    Scrapheap Scrapheap April 2006 Development
  • Interface 1 Memory Map(I'm not sure which section this post should go in, but here seems as good as any) Since the Interface 1 ROM is only 8k long, does anyone know what …

    ... appears in the 8-16k memory range when IF1 is paged ...
    MikeW MikeW May 2006 Hardware
  • Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…

    ... ?) behind ULA's spectrum screen memory interpretation?

    6144 bytes ... behind this implementation? Why screen memory isn't interpreted continuously?
    Arda Arda October 2006 Development
  • Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…

    ... ROMCS but for the whole memory map?

    Translating the IORQ ... piece of on-board memory and map external memory over it. CP/M ...
    Jonathan Harston Jonathan Harston June 2007 Hardware
  • +2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…

    ... set to point to contended memory still occurs, and also appears ... set to point to contended memory.[/quote]

    Will the ... , with RAM bank 4 (contended memory) in 0x0000-0x3FFF, and place ...
    ajmoss ajmoss June 2010 Hardware
  • Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…

    ... 0x7FFD). The original Spectrum 128K memory map (with only one 16K ... 0x1FFD on the Pentagon switches memory banks as described in [ ... Second category of expansion of memory over 128k.

    ... Third category of expansion of memory over 128k.[/quote]
    ...
    ajmoss ajmoss August 2010 Hardware
  • Execution map file support in different emulatorsAs I'm now seeking about execution map files, the different emulators support, I want to start a new discussion here. Today, I tried to create a mem…

    ... I tried to create a memory map with Z80 emulator, but ... Z80 emulator:
    file extension: *.map
    file size: 8192 bytes ... byte of the 64 k memory area.
    bit = ... SpecEmu emulator:
    file extension: *.map
    file size: 65536 bytes ...
    clausjahn clausjahn July 2015 Emulators
  • 48k Memory MapIs there a link or info anywhere that explains the 48k memory layout? My game uses double buffering and I'm trying to decide where the best memor…

    Is there a link or info anywhere that explains the 48k memory layout?

    My game uses double buffering and I'm trying to decide where the best memory location should be.
    Atari_Jetman Atari_Jetman September 2015 Development
  • Microdrive Games CartridgeI've just noticed that Ant Attack on the microdrive [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0014815"]Games Cartridge[/URL] (also bundl…

    ... then loads the entire 41K memory map including BASIC up to 65535 ... copy protection.

    For microdrive loading a 600 byte buffer ... is on the left and microdrive version on the right. ... which loads the code from microdrive and then executes machine code ...
    Geoff Geoff February 2010 MIA/STP/SDP
  • Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…

    ... ways to transfer games into microdrive cartridges, in addition to ASM ... to copy the game to microdrive select it,or else tape ... find this tool under "Edit memory map" tab.

    DOWNLOAD: [url ... fit more games into one microdrive cartridge or +3 disk.
    Arda Arda November 2010 Sinclair Miscellaneous
  • yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…

    ... results.

    The microdrive, tap, if1 interface are very ... free blocks from around the memory map to be added to ... write one.

    - microdrive driver
    - serial port driver ... The remaining part on the microdrive shall be the external kernel ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Development
  • ANN: Spud v0.240I've decided to release what I've added to Spud as it's been a while since I released the last version, I think there are probably a few bugs lurking…

    ... so far:

    * The memory map! I like the multiple views ... of the map.
    * The emulator runs very ... yet to try out the Microdrive and Interface 2 emulation though ...
    Arjun Arjun February 2015 Emulators
  • ANN: Spud v0.240I've decided to release what I've added to Spud as it's been a while since I released the last version, I think there are probably a few bugs lurking…

    ... so far:

    * The memory map! I like the multiple views ... of the map.
    * The emulator runs very ... yet to try out the Microdrive and Interface 2 emulation though ...
    rich_chandler rich_chandler February 2015 Emulators
  • 48K Memory MapHi, I'm having some trouble understanding the top of the 48K Memory Map. From reading elsewhere I have this as the memory map: 0 to 16383 - …

    ... the start of the available memory for BASIC programs from the ... at the start of "available memory" and is [i]usually[/i ... possible that additional Channel information, "Microdrive maps" or indeed any other ... the lower end of the memory map.
    AndyC AndyC March 2016 Development
  • If you had four roms...Just wondering if you were designing a Spectrum from scratch, and you used a 27512 EPROM, which would hold about 4 spectrum roms, what you would inst…

    ... it was intended that the microdrive ‘driver’ and RS232/network ‘ ... for screen, keyboard, sound, tape, microdrive, RS232, network and ZX printer ... a choice of where to map the extra 32k bytes. Do ... chips across the entire Z80 memory map (all RAM) paging out the ...
    1024MAK 1024MAK February 2021 Hardware
  • New project for 256 colours Games emulator!O.K. , I suggested Jonathan Needle ( Creator of the excellent Spectaculator at [url="http://www.Spectaculator.com"]www.Spectaculator.com[/url] ) to c…

    ... the speccy emulator with its memory zone, and in the other ... 8 bit, and with a memory map with positions of 64 bit ... processor Z80_GFX. Z80_GFX modifies its memory zone accordig to the instructions ... do anything with Z80?s memory zone. What have we archieved ...
    Arm73 Arm73 January 2004 Emulators
  • ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…

    ...
    Multifunctional Watches - watch memory addresses, variables, expressions, sysvars
    Memory Map which shows the spectrum RAM ... at any time
    Memory viewer/editor - a simple ... for sending Speccy display memory to the PC screen< ...
    Dunny Dunny June 2005 Emulators
  • ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…

    ...
    Multifunctional Watches - watch memory addresses, variables, expressions, sysvars
    Memory Map which shows the spectrum RAM ... at any time
    Memory viewer/editor - a simple ... for sending Speccy display memory to the PC screen< ...
    Dunny Dunny June 2005 Sinclair Basic
  • ROM paging questionAssuming the Spectrum 128 memory map and port addresses, but two custom ROMs in place of the normal Editor and BASIC, what is the most efficient way …

    Assuming the Spectrum 128 memory map and port addresses, but two ...
    chev chev January 2006 Development
  • Emulator for viewing variables dataI am looking for a windows emulator, this emulator can view variables data used in game (tap,sna,z80...). It knew edit variables data. I dont remembe…

    ... items - variables, system variables, breakpoints, memory map, watches...but I am not ...
    vladisek vladisek September 2006 Emulators
  • It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…

    ... of the Spectrum ROM's memory map as a jump table (it ... can find a location in memory which no one *ever* calls ...
    Winston Winston December 2007 Hardware
  • Skool disassemblies onlineThe Skool Daze and Back to Skool disassemblies (previously announced in too many places on this forum) are now browsable online: [url]http://pyskool…

    ... follow the link from the memory map.

    So whereas beforehand ...
    SkoolKid SkoolKid October 2009 Development
  • So what exactly IS an emulator anyway?Totally silly, but... I've always been quite happy with describing the multitude of programs that allow us to re-live our Speccy days as "emulators"…

    ... virtual CPU with a specific memory map etc. They call [I]that ...
    Laser Laser November 2009 Chit chat
  • Wrong-endian data table?I'm drawing up the memory map for something I'm writing. I'll be using machine code on a byte array of 256 elements, each element consisting of 64 by…

    I'm drawing up the memory map for something I'm writing. ... would be working against the memory read cache. Not an issue ...
    ajmoss ajmoss December 2009 Development
  • 48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…

    ... a bit of a tangled memory map at a chip level, the ...
    Womble Womble August 2010 Hardware
  • Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …

    ... to snapshot the display or memory to disc. I modified ... function to save a memory dump of the Spectrum ... started by saving the whole memory map from 0 to 65535 ... I would be examining memory to find this text:
    memory.

    Stay ...
    ASM ASM November 2010 Development
  • ZX81, AY, samples, SpecAY, AY files, etc.With the appearance of 3 different AY interfaces for the ZX81 in the past 6 months, I wonder... Is it possible to make the ZX81 "speak" or play digi…

    ... samples also has this uncontended memory requirement. Assuming most ZX81 users ... not familiar with the ZX81 memory map. All I know is that ...
    zxbruno zxbruno August 2011 Sinclair Miscellaneous
<1234567…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
microdrive 2.6K 4.1K
memory 21.8K 32.5K
map 10.3K 16.3K

Related Threads

  • Wanted: Microdrive to Microdrive connecterHappy to buy or trade.<br /> Thanks
  • Microdrive + Interface 1 + 29 microdrive cartridges FOR SALEI am selling the following:<br /> <br /> 1 Microdrive<br /> <br /> 1 Interface 1 with rs-232 cable<br /> <br /> 29 microdrive cartridges (including t…
  • Interface 1 Memory Map(I'm not sure which section this post should go in, but here seems as good as any)<br /> <br /> Since the Interface 1 ROM is only 8k long, does anyon…
  • Memory Map/ContentionHi <br /> I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scr…
  • Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation?<br /> <br /> 6144 bytes divided into 3 blocks, 2048 bytes long. i…
  • Microdrive to Microdrive connectionHi everybody,<br /> is it possible to build a Microdrive to Microdrive connector by:<br /> <br /> - cutting an old 5.25" floppy cable on the connecto…
  • +2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says:<br /> [quote]The ULA bug which causes snow …
  • 32k memory Italian memory expansionNot mine but its an [URL="http://www.ebay.co.uk/itm/TENKOLEK-32K-RAM-Expansion-Sinclair-ZX-Spectrum-/320861810075?pt=UK_VintageComputing_RL&amp;hash=…
  • Microdrive-Microdrive incompatibility?Hi All!<br /> <br /> Finally I could get enough Microdrives and connecting blocks (or cable replacement) to make the largest storage configuration of…
  • 48k Memory MapIs there a link or info anywhere that explains the 48k memory layout? <br /> <br /> My game uses double buffering and I'm trying to decide where th…

Related Searches

  • lowest memory for code
  • lowest memory position for machine code
  • lowest memory position machine code
  • lowest memory machine code
  • lowest memory code
  • lowest memory
  • memory map
  • microdrive cartridge
  • map
  • microdrive protocol
  • microdrive connector
  • testing a microdrive
  • microdrive schematics
  • led storm memory
  • microdrive
  • led memory map
  • microdrive out of memory
  • microdrive maps memory
  • vortex tracker memory map
  • 16k memory map

Copyright © 2024 World of Spectrum