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Write to ROM=crash?I've read in quite a few places that writing to the ROM causes a crash but on the assembly listing the comments for poke say: "Happily no check is ma…
I've read in quite a few places that writing to the ROM causes a crash but on the assembly listing the comments for poke say:
"Happily no check is made as to whether ROM or RAM is addressed."
Does this mean that pushing a value when SP -
Swedish SPectrum ROM foundFrom a contributor to my inbox: [quote] Went to a flea market today to look for old computers and found a rubber-key Speccy. Didn't really look at i…
... computers and found a rubber-key Speccy. Didn't really ...
The good news: the ROM (or rather, an EPROM from ... make an image of the ROM. Provided the EPROM can ... handle the type of ROM, of course.
[/ ... any definitive answers on the ROM type and we'll ... -
Press any keyI need to write a z80 function that waits for a user to press any key. As it is possible that the user may be pressing a key when the function is cal…
... a user to press any key. As it is possible that ... user may be pressing a key when the function is called ... of enter function, if a key is pressed wait until they ... press a key. Can anyone provide me with the rom commands that ... -
Hard drive and Multiface problemsI recently read about the Spectrum +3e, and thought to myself - "I'll give that a try, and I'll build the Hard drive Interface while I'm at it". So,…
I recently read about the Spectrum +3e, and ... 27C256's, downloaded the +3e rom images, and hey presto, I ... /> I/O error - press any key
Hmm, what have ... /> I/O error - press any key
I am beginning ... -
Spectrum Key Codes?Hi guys, I have just been reading up about the Sinclair Keypad that was released to accompany the 128K. I read this on the a website, this was refe…
... the 128K.
I read this on the a website ... keypad, 'For valid key presses the generated key code is stored in ... display the keycode of the key I press? Basically so I ... can see the key code of each key?
I ... -
SimCoupe 1.0 released[size=-2](for those of you that don't read CSS)[/size] SimCoupe, the SAM Coup? emulator, has been updated to version 1.0. This major release adds ma…
... correct WD1772 CRCs to read address and read track data
... flags
- Fixed ROM memory accesses to be uncontended ... to no longer require temporary ROM patching
- Improved ... altforcntrl use by disabling Windows key when active [Win32]
... -
Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…
... that didn't use the ROM, for key input and character output ... -
New Spectrum emulator for DS[url]http://zxds.raxoft.cz/[/url] [quote]Features already implemented: * Solid Z80 core - possible bugs aside, the Z80 emulation is as complete…
... fully implemented. This includes both ROM and RAM bank paging and ... format and is trivial to read, so supporting it is a ... , too.
* Proper input support - key remapping, per game configuration, etc ... the times the ULA would read them. It looks like there ... -
splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…
... 'm trying to generate IF2 ROM games for ZX Spectrum 16K ... aware of, or they just read/write to the structures generated ... (i.e. graphics, masks...) in ROM or is it written to ... -
Sinclair 128K+ Rom dead?While repairing one of these boards my mind was elsewhere and I put the rom back in the wrong way round and now it doesnt work (scrambled screen) alt…
... elsewhere and I put the rom back in the wrong way ... read somewhere that the 128+ had an 'eprom' rather than a rom ... IMG]
Is it a rom or an eprom and if ... can anyone supply a working rom/eprom? For now i replaced ... it with a rom from a grey +2 and ... -
I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
... over 1 kilobyte of unused ROM memory, from address 14446 to ... being cheated. I have always read that it was such a ... -
ANN: ZX Spectrum +2g ROM setI'm working on another modified ZX Spectrum. This one is based on the +2A. There's quite a lot of work to do on the hardware but the ROM set is prett…
... /> 3: The original 48 BASIC ROM
The Spanish editor ... codes and shows you what key mode you have selected. I ... /> UK (switch to UK editor ROM)
USR 0 selects ... hardware enabled.
SPECTRUM selects ROM 3 with the additional hardware ... -
FLASH EPROM programming on ZXExist any other software for rewriting FLASH EPROM or EEPROM chips on real ZX ? I know only: EEPROM flasher for original DivIDE [url]http://85.132.…
... di ; interrupt must be disabled (rom will disconnect)
call $1ffb ... z, l_5cd7 ; wait for any key
ld a, ... )
ld a, (de) ; read source byte
ld (hl ... -
need MF128 ROM for use with PlusD interfacedoes anyone have this ROM? Can they read out the ROM as I want to use my Not The Plus D interface with a multiface 128. thanks in advance if anyone c…
does anyone have this ROM?
Can they read out the ROM as I want to use my Not The Plus D interface with a multiface 128.
thanks in advance if anyone can help. -
Sinclair ZXC3 FLASH ROM CartridgeI recently received mail about the new ZXC3 PCB which provides the unique ability to program it directly from the Spectrum without the need for an EP…
... the programming of the FLASH ROM. The only additional hardware ... (.Z80 and .SNA) and ROM image files (.ROM and .BIN), allowing the ... files to it and to read them back. For maximum ... backwards compatibility with existing ZXC2 ROM cartridge programs. The ZXC3 ... -
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…
... the ROM test, the 9000 allows you to read data ... another speccy), a working ROM, working lower RAM and ... in and faking the keyboard key press I got nothing. ... an original Sinclair test ROM cart for the Interface ... hooking up the Sinclair ROM cart and running the ... -
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... that has a pc function key for the mulitface nmi button ... file support and cant even read a real hdf aotm lite ... for sam coupe- the speccy rom version and tap versions wont ... work without hardware rom interface?
we cant ... -
JSpeccy with SEBasicHi, Just a quick post to update everyone on JSpeccy. A new version is out which has a couple of new machine types: Spectrum 48K + SEBasic v2.18 Sp…
... may change the BBC BASIC ROM to the SEBasic 2.18 ... ROM.
Some minor fixes ... been added, along with some key mappings (so that it is ... mapped are ,./?;':-=_+
Read about it here - [URL="http ... -
Screen$ command, ROM routineHi All, Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works or the spee…
... />
Does anyone know which ROM routine to call for the ... 's what in the ROM disassemblies I've read (any easy to ... -
Rom Cartridge - How does it work?So I've got me an IF2 and it has this ROM cartridge slot. How does it work? I read Paul Farrows site but one question remains unanswered. If I have o…
... has this ROM cartridge slot. How does it work? I read Paul ... .i. does it replace ZX ROM and consequentially prevents you from ... calling any ROM functions? If so - is it ... -
Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... my z80 computer with 2K ROM 32K RAM.
... /> ;> KEEPS LOOPING UNTIL KEY PRESSED
;*********************************
KEY_FUN ... D1 - RESET SDA
;D2 - READ
;D3 - WRITE
;D4 ...
IN A, (5) ;READ DATA FROM CONTROLLER
AND ... -
The Sinclair ZX Microdrive Resurrection Project (long)Dear Spectrum fans! [Management summary: Download [url]http://www.bartheld.net/temp/mdv2img.zip[/url] and tell me what you think. All help very much…
... , Gianluca Carri's "Spectrum Shadow ROM Disassembly" and a few other ... 0xA0 with correct header checksum read elsewhere).
For that ... the sector I intended to read but some surrogate.
< ... you to press the space key. Then stop spxfr, insert the ... -
ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …
... spectrum which must activate its rom (actually static ram) on NMI ... goes
low and memory read request for the intruction fetch ... -
Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... not.
;; RAM-READ
L11E2: AND A ; ... L11E2 ; back to RAM-READ if zero flag was ... /> ;; RAM-READ
L11E2: CP H ; Have we reached ROM - $0000 ... L11E2 ; back to RAM-READ if zero flag was ... -
Interface 2 ROM cartridges images neededHello! Is there any place i can get the rom images from released interface 2 cartridge games ? Maybe somene has it and can read the image and send …
Hello!
Is there any place i can get the rom images from released interface 2 cartridge games ?
Maybe somene has it and can read the image and send it to me?
Artem -
OpenSE BASIC 3.1.1The eagle-eyed will have noticed that [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]SE BASIC[/url] got an update last week. As a te…
... sure no-one has read the manual so here ... specifically prohibits using the ROM in hardware. Therefore it ... of PRINT). The EDIT key is gone (it was ... replaced with a TABulate key (which places code 6 ... execute correctly on the original ROM.
* Improved ... -
TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …
... TESTROM3 utility as 16kB ROM file + flasher for install ... keyboard.
press key "1" or JOY RIGHT = ... on divide)
press key "2" or JOY LEFT ... test 128kB memory
press key "3" or JOY DOWN = ... test first videoram
press key "4" or JOY UP = ... -
Beta testing Fuse 1.1.0 beta 2Hello everyone, We are still preparing Fuse for a new release soon and would appreciate help in testing that all the new features and all the old fea…
... properly.
The key new features are:
[ ... support
[*] PZX file read support
[*] Plus lots ... Tonks)
[*] Add DISCiPLE ROM with EPSON printer support
[*] Include read and computed checksum (thanks, Ivan ... -
Homebrew keyboardGuys, just a quick question. I really should know, but I don't :( I've built keyboards for the standard layout before now, and was hoping to expand…
... the ROM read the switch contact reliably - the (for example) "P" key will ... time as the Symbol Shift key.
The diode voltage ... the Symbol shift and P key lines at the same time ...
