-
Simple memory transfer routineI'm looking for a simple memory transfer routine that shifts 32 bytes of data from the address HL is set to 55143, I have tried using LDIR, but cant …
... 'm looking for a simple memory transfer routine that shifts 32 ... -
SWIV digitised speech as easter egg?I read in the permission from one of the authors of the game that the game had a "easter egg" with a speech from Aliens. I have never tried it myself…
I read in the permission from one ... mind now is, how much memory do these things take when ... -
What CF Card For your DIVideI recently purchased a DIVide with a 4gb CF Card [IMG]https://www.bechtle.co.uk/medias/200x200/200x200-EcsHUb93uHc6x9N9CBYV58-30.jpg[/IMG] and have…
... done a search on the read speed and it says
3.7 - 6MB/sec. read rate (40X)
1.5 ... Extreme 400X Compact Flash CF Memory Card
[IMG]http ... />
Speed Rating 400x
Read 60MB/s
Write upto ... -
A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... /> ; repeat
bucle:
; read list
ld a,(iy ... of data
call dos_read ; read block
jp nc,0 ... /> ; 2 bytes starting address in memory
; 2 bytes data length ... -
harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…
... much use of the extra memory.
Could ... separate the program memory from the data memory like on ... program memory. this is basicly paged in with a read ... 64k of data memory any writes to memory and reads that ... about paging in extra memory it would all be ... -
ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... gets confused by the memory refresh cycles of the ... memory address generated by the ULA (who wants to read ... data from an unexpected memory location (which still belongs ... it does not read the video memory, so it leaves ... is started to be read at 14368+228 = 14596T ... -
Compact Flash Card In "Memory Mode" - (Help)Hello my fellow WoS'ers I have been developing a Z80 8bit interface with a compact flash card port based on Pera's ZXCF "memory mode" interface for …
... based on Pera's ZXCF "memory mode" interface for the +2AB ... -
How to load a +3 dos file from disk to memory in z80Hi all again, Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination? Thanks.
Hi all again,
Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination?
Thanks. -
Emulator support for East London Robotics SP80 memory expansion?Do any emulators support the [url=http://www.worldofspectrum.org/infoseekid.cgi?id=1000377]East London Robotics SP80 memory expansion[/url]? That add…
Do any emulators support the [url=http://www.worldofspectrum.org/infoseekid.cgi?id=1000377]East London Robotics SP80 memory expansion[/url]? That adds another 32KB of RAM which you can page in/out at address $8000. -
FS: 16K ZX81 with Composite Video16K boxed ZX81 with ZX8-CCB Composite Video [URL="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=371014090988&ssPageName=STRK:MESE:IT"]here[/UR…
16K boxed ZX81 with ZX8-CCB Composite Video [URL="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=371014090988&ssPageName=STRK:MESE:IT"]here[/URL] -
USB Memory stick testA friend of mine is selling some USB memory sticks that he claims are 500gb for ?35! I said that can't be right, so he's given me one to try. When I …
... mine is selling some USB memory sticks that he claims are ... . I thought you "lost" more memory than that with new drives ... (I'm also aware that memory is getting smaller these days ... Sony have developed a 2TB memory card!).
All these ... -
4294967296 pseudo output portsIn an effort to avoid any hardware conflicts with the clashbasher interface I've been looking for an alternative to using the spectrum's ports for ou…
... />
I considered a memory mapped approach, but that seemed ... address of n in memory. If you execute LD ... the instruction will read n from memory and then in ... own data to the spectrum memory. It would then be ... byte in the spectrum memory with one in the ... -
Loading data from 128 memoryAfter all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory. How do I go about implementing this in…
After all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory.
How do I go about implementing this in machine code?
Thanks in advance... -
dumping protected BASIC loadersI wrote this a few weeks ago but forgot to post it. It will load & list from tape/TAP/TZX any BASIC program which has been saved with SAVE, including…
... a=mc TO mc+13: READ b: POKE a,b: NEXT ... BASIC listing formatter, which in memory of my old awk program ... -
Psycho Pigs UXB review! (a great read)Check out this really great review of Psycho Pigs UXB from the WOS forum's own [URL="http://www.worldofspectrum.org/forums/member.php?u=7000"]Atari_J…
... =7000"]Atari_Jetman[/URL]
read it at [URL="http://www ... -
For Sale: Issue 1 16K S/N 001-000341Extremely low serial number Issue 1 Speccy 16K with fawn keys; [URL="http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=371028018594&ssPageName=STR…
... serial number Issue 1 Speccy 16K with fawn keys; [URL="http ... -
JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... to memory address nn.
JP (HL) ,I assumed would read the ... contents of memory address HL and jump ... HL,jumptable
JP (HL) ; read/peek the contents of HL ... 't, it jumps to the memory location HL
Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... that the opcode fetched from memory and NOP is executed in ... , but hopefully interested parties will read both. :-)
Snapshot saving ...Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... When the Z80 writes to memory, that write is exposed ... with writing to ULA-contended memory of an external system? ... imposing the real-time memory writes onto an actual ... top half of a 16K RAM that overlaps the ... into the uncontended upper memory so it can copy ...48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…
... .
Tried saving 48k memory as a binary file and ...LOADing 128k's worth of data???Just getting to grips with the concept of the 128's 'bank switching' set up, but how can you load the stuff into memory from tape (or TAP file)? Do…
... you load the stuff into memory from tape (or TAP file ... load the 16k blocks individually and place them in a memory bank ...Are there resources to learn assembly programming for the ZX Spectrum?Hi, I've seen and read some tutorials about Z80 programming and I have now a pretty good understanding of how it works, I've been doing some 6502 pro…
Hi, I've seen and read some tutorials about Z80 programming ... to write to the video memory, the interrupts, the rendering process ...displaying all memory activity in a screenDunno why I keep thinking about this, but here goes Is it easy enough to add a screen to an emulator that shows every memory address' activity.... …
... an emulator that shows every memory address' activity....
Im ... the activity on the dispkay memory?
Does all that ... of every bit in speccy memory
Thst leaves plenty of ...128k programs not working on +2aI'm having an issue with my +2a at the moment, in that I can't seem to get it to run any 128k programs, e.g. Renegade and Nigel Mansell World Champio…
... compatibility issues).
Possible memory fault, and if it is ... it appears it is working. Read thread title as 'don't ..."How I Would Have Ended BioShock" - a brilliant read for Bioshock fansIf you played (and liked) the first Bioshock game, then you MUST read this: [url]http://www.pentadact.com/2009-04-15-ending-bioshock/[/url] it's on…
... Bioshock game, then you MUST read this:
[url]http ... Bioshock yet, then don't read that article, as it will ...New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…
... but it also allows full 16K ROM programs to be used ... character set bitmaps down in memory (hence improving program compatibility).
16K/48K Spectrum) which has a ...Some hardware from JiiiraFor those who haven?t discovered [B][URL="http://jiiira.ajetaci.cz/speccy_hw/index_eng.xhtml"]my webpages[/URL][/B] yet: ;-) [B][URL="http://jiiira…
... speccy_hw/ZX_ExpBoard/ZX_ExpBoard_eng.xhtml"]read more[/URL])[/I]
read more[/URL])[/I]
16K and 48K computers, ... /simple/Simple_AY_IF/Simple_AY_IF_eng.html"]read more[/URL])[/I]
Problem Reading the KeyboardHi Folks, I'm working my way through Toni Baker's rather good book and thought I'd write some code to scan the keyboard and store the results so tha…
... segments
;3.1 - Read the key states for that ... />
;3.1 Read key states for the current ... br /> IN A,(0xFE) ;Read the key states for this ... keybstates in current key state memory area
_storeKey1 ;First ...Spectrum rubber key memory upgradeIf a 16k spectrum has a 32k fox upgrade kit installed anyone any idea what board revision we would be expecting to find in this machine? And was this…
If a 16k spectrum has a 32k fox upgrade kit installed anyone any idea what board revision we would be expecting to find in this machine? And was this an after market kit or one offered by sinclair?:grin: FANX16k box question.Did some of the 16k versions come in polly inserts in a plain brown box like the one ive just picked up or is it just a case of the black box with th…
Did some of the 16k versions come in polly inserts ... few issue 1 and 2 16k spectrums especialy on ebarf lately ...
