-
Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…
... description of most popular BETADISK 128:
[COLOR=" ... /> [U][B]Description of Betadisk 128[/B][/U]
... type and always enable betadisk memory paging mechanism. Then after ... addressing in original BETA DISK 128:
[code]ADRESS bits ... -
Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…
... byte from external memory, disconnect external memory(connect original ZX ... is automatically disconnect external DIVIDE memory.[/I]
... enable divide memory. Open jumper = disconnect memory and enable ... is connect to ZX Spectrum 128+2A/+3.[/COLOR]
Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
... about MB-02+ idisk interface ( memory paging mechanism, list of ports ... between HD FDD and ZX memory. Interface contain also RTC chip ... FDD booter and [B]RAM 128-512kB with battery backup[/B ...Hardware description - MULTIFACE 3[B]Hardware description - MULTIFACE 3[/B] This is description of MF3 clone, because I can't find more about original interface. Schematic and PAL ch…
... designed specially for ZX Spectrum 128+2A/+3 models. Use ... feature without effect because MF3 memory is connect) + return ... instruction disconnect MF3 memory(yes, disable MF3 memory. This ports are ... MAGIC button with connected MF3 memory)
Address ...Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…
... were already at the correct memory address!
The result was ... ;b=ABCDEFGH
LD C,128 ; unrolling saves a few tstates ... ;b=ABCDEFGH
LD C,128 ; unroll again
SWIT2 RLA ...Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded ... don't have real MULTIFACE 128. But schematic structure correspond with ...Spectrum 128 +2A GamesI have recently been discovering the mystic wonders of flash devices for old systems that allow you to store pretty much every game for a given syste…
... have it connected to a 128 +2A, most games work fine ... refuses to work on the 128. It is not the DivIDE ... game that works with the 128, or does anyone know of ...Copying data between memory banks in USR0 modeI am experimenting with Funky Fungus to load the majority of its data (levels, screens, music etc.) into memory banks 1, 3, 4, 6 and (partly) 7 by sw…
... (levels, screens, music etc.) into memory banks 1, 3, 4, 6 ... 49152 and above, I need memory bank 0 to be switched ... /> I understand loading data into memory banks is easier because all ...128 BASIC-compatible way of loading BASIC as code?On a 48K Speccy (or from 48 BASIC or USR 0 mode on a 128K machine), one can do a silly trick like this: [code];; load a 4000 byte BASIC program ld i…
... , if one tries this from 128 BASIC, it all falls in ... BASIC as code from the 128 BASIC interpreter does work; it ... know if there's a 128 BASIC-compatible way of doing ...SD card as a tape playerSince discovering WOS I've been amazed at the talent and inginuity of everyone who has developed new hardware and software. I only wish I could under…
... .
MP3s of games @128 bit encoding average around 4 ... these MP3 players include SD, memory stick and USB connections as ... pounds and has 8 Gb memory with provision for a micro ...Understanding DRAMI think I am going slightly mad. My hardware knowledge has got more rusty than it should have done, and I am going to have to turn to the experts to…
... that DRAM, and specifically upper memory is addressed.
... 4116 chips - i.e: lower memory are 16k bits. They are ... allow us to address 128 rows and 128 columns. 128 * 128 = 16384 = 16k.
128 columns = 32768 = 32k
< ...Use PLAY without the 128 ROMHere's a little thing I wrote called SoftPLAY: [url]http://www.worldofspectrum.org/forums/showthread.php?t=45259[/url] Now you can use the PLAY comm…
... you hear on the original 128 are a bug and shouldn ...Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... won't have so much memory available just to copy a ... ,TARGET
ld bc,4096+128*256
loop:
REPT ...Wanted: Boxed ZX Spectrum +128 (Toast rack)If anyone has a boxed ZX Spectrum+128 (the toast rack) for sale, then let me know - I will pass on the email for someone who has asked me for one!
If anyone has a boxed ZX Spectrum+128 (the toast rack) for sale, then let me know - I will pass on the email for someone who has asked me for one!Saving game progress on Multiface 128Hello, It's been a while since I used my multiface 128 and can't seem to remember how to load saved states/or screenshots. Currently playing through…
... since I used my multiface 128 and can't seem to ...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 ...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…
... de,0
ld hl,128
call dos_set1346
jp ... /> ; 2 bytes starting address in memory
; 2 bytes data length ...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'…
... />
I love the Commodore 128, and I'm thinking about ... take advantage of the extra memory and modest extra speed.
memory to create something special for ... how developers used the extra memory would be very welcome.
Multiface 128Looking for a multiface 128. Reasonable price paid.
Looking for a multiface 128. Reasonable price paid.external storage for Spectrum 128 (HxC floppy emulator)As usual, the first post of a beginner (.. or I should say "a returner") like me shows a big ignorance. I hope you'll forgive me, because I forgot al…
... would like to rebuild a 128 Spectrum system.
Firstly, I ... HxC card reader to a 128 Spectrum?
2) I would ... know where to buy a 128 +3 Spectrum (I already own ... a 128 +2 Gray model and I ...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…
... ULA gets confused by the memory refresh cycles of the Z80 ... CPU interferes with the video memory address generated by the ULA ... the data from an unexpected memory location (which still belongs to ... memory, so it leaves the bus idle for the remaining 228-128 ...Grey Spectrum 128+2 Is mine dead??Having a nice session of 128+2 playing this evening and as I was playing Paperboy I noticed a few graphical glitches that had not occured before, the…
Having a nice session of 128+2 playing this evening and ...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 ...Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... takes a silly amount of memory for tables. So I've ...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.Toastrack/Grey +2 physical memory layoutI'm looking to extend the functionality of the test ROM used with Winston's diagnostic board to also properly test the RAM of toastrack and grey 128K…
... clear to me how the memory is physically laid out.
memory.
Could anyone fill ...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 ...Pentagon 128 (1991) on eBayNot my auction and sadly it says nothing about the condition - but considering how rarely those turn up, maybe someone here might be interested. [ur…
... -soviet-clone-of-ZX-SPECTRUM-128-PENTAGON-128-from-1991-/321341068138?pt ...128+2 Help!Today the postie brought me an early Spectrum 128+2, it's a Z70700 Issue 1. Everything seems to be working ok, i.e it boots up and the keyboard work…
... brought me an early Spectrum 128+2, it's a Z70700 ...
