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Folks with real speccies - test this!A lad from another forum has written a music demo for the Speccy, but he can only test it on ZXSpin, so needs some helpful chaps to record this to ta…
... beeper with such a short ROM load?'
Then I realised ... Prodigy through the +3 ear socket :D and promptly disconnected it ... -
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... DISCiPLE, 0 for the 128K ROM 0 (i.e. the one ... different to the 48K ROM).
ROM PC Instruction
0 ... a jump to 11CB in ROM 0, which rather than being ... 't hurt, changing the printer socket is a very good idea ... -
Adding IDE to your Spectrum +2 A/B (or +3)Hello my fellow [B]WoS'ers[/B] [B]This is a shared thread with [url]www.amibay.com[/url] which you can [URL="http://www.amibay.com/showthread.php?t=…
... hole just beside the power socket =(
lol, bless ... have yet to change the ROM's LOL =) -
PlusD Mini: implementing the CPLDI am doing my first attempts on creating a CPLD to use as replacement for the PlusD's GAL (and other logic lateron). I use the Xilinx XC9500XL series…
... result of executing opcode 0xFF (RST 0x38 ) continuously. Which means you ... successfully paged out the Spectrum ROM, but not managed to page ... -
PlusD Mini: implementing the CPLDI am doing my first attempts on creating a CPLD to use as replacement for the PlusD's GAL (and other logic lateron). I use the Xilinx XC9500XL series…
... result of executing opcode 0xFF (RST 0x38 ) continuously. Which means you ... successfully paged out the Spectrum ROM, but not managed to page ... is some problem with the rom paging.
Here's the ... -
PlusD Mini: implementing the CPLDI am doing my first attempts on creating a CPLD to use as replacement for the PlusD's GAL (and other logic lateron). I use the Xilinx XC9500XL series…
... getting asserted OK (the ZX ROM is clearly paged out, showing ... prevent the built-in ZX ROM from getting selected, which is ... is that while the ZX ROM is paged out, either no ... memory with each execution of RST 0x38. -
Opus discovery, helpBack again with a new help request. Lately I'm giving care at some old spectrum stuff I have set apart from old days, and today I've opened a boxed o…
ROM v2.2 is Spectrum-128 ... placed in the normally empty socket on the board inside.
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... :
0 for the 128K 'ROM 0'
(i.e. the ... rather different to the 48K ROM)
R for uninitialised RAM ... 5B80 NOP
R 5B81 RST 38
[/CODE ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... /> I had meant that the ROM is paged in after the ... addresses which in the Spectrum ROM contains RST #38 instructions ? I imagine ... of the Beta interface's ROM were delayed at all, in ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... ]I had meant that the ROM is paged in after the ... addresses which in the Spectrum ROM contains RST #38 instructions ? I imagine ... of the Beta interface's ROM were delayed at all, in ... some internal machine cycles when ROM is replaced.
You may ...Spectrum 128k +2 grey and EPROMhi all, i am try to fix my spectrum, right now i am little on dead end... i think a good idea is to test RAM/ROM on the Spectrum so i will try to c…
... the EPROM and original ROM, and for pins that ... is connected on the board (socket?). And if necessary, modify ... some pins of a ROM may have a different ... the same pin on another ROM, this depends on manufacturer. ... handy when modifying the socket pinout to take an ...RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... program in the ROM / EPROM / EEPROM (in the ROM socket, IC 8 ) runs ... Z80 CPU (IC9) and the ROM socket (IC 8 ). It is also ...RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... program in the ROM / EPROM / EEPROM (in the ROM socket, IC 8 ) runs ... Z80 CPU (IC9) and the ROM socket (IC 8 ). It is also ...RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... program in the ROM / EPROM / EEPROM (in the ROM socket, IC 8 ) runs ... Z80 CPU (IC9) and the ROM socket (IC 8 ). It is also ... ram ic's cpu ula rom and anything goes where suppose ...A quick newbish questionI'm reading through 'mastering machine code on your spectrum',as kindly posted by Mr bert on this forum. Correct me if I'm wrong from what i read,bu…
... , but when you use the ROM printing the PRINT USR will ... printing to the screen using ROM routines (mostly at address 16 ... /> [CODE]LD A,99
RST 16
RET[/CODE]Sixword SwiftdiskI just got hold of a Sixword Swiftdisk interface, which seems to be a very interesting piece of hardware. It looks almost identical to an IF1, can co…
...
2.4 ROM versi?n fits in a ... 27C128 EPROM
3.4 ROM versi?n fits in a ... swift-disc can use both rom version. In fact, I take ... the reason for change your ROM?. If your swift disc works ... break tracks. Forgot to put socket because there isn't space ...Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…
... might have expected the 'DOS ROM' to contain the same ... first byte as the Spectrum ROM in this case, although ... ROM to 48 ROM), you get a RET in the RG ROM and RST ... $38 in the 48 ROM. RET is ... to the $0280 (48 ROM to RG ROM) RET (which is $F9 ...Composite mod - which one?On all my 16K/48K and Plus Spectrums I use to carry out the "Womble" Composite mod: [URL="http://womblesretrorepairshack.blogspot.de/2008/11/zx-spect…
... interface also provides a joystick socket, RS232 socket, ROM cartridge support and a ...Video output questions...Two questions... [QUOTE]1. The yellow and blue colours seem out of phase on the display. Is this normal for an RF connection to the TV/monitor?[/QUO…
... interface also provides a joystick socket, RS232 socket, ROM cartridge support and a ...16k programmingHi all, If I want to code something for a 16k (or any spectrum) my understanding was that if I CLEAR below 24064 and put all the code above it up to…
... . My demo used RST 16 but no other ROM calls, and my ... updated version will have no ROM calls at all.
RST 16 will be fine/ just ... always follow it e.g. RST 16 / DEFB 'A' / ...more code ...Keyboard scanning routines / techniques?What keyboard scanning routines or techniques do people use? I'm looking to write something which doesn't rely on the ROM-based keyboard scanner, an…
... API name on stack, then RST 0x10 */
u->exit ... RAM using IM2 and in ROM.
There are also ...Timex 2048 + Interface 2When playing with ZXC3 cartridge (very nice piece of HW from Paul - highly recommended), I connected original Sinclair IF2 to TC2048 and... no joysti…
ROM part is not relevant here - ... not have any logic for ROM socket. It has just one custom ...another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
some little progress after rom ram test fitted in (with ... and gnd on the 78s05 socket without it installed... I read ...Strange and faulty toastrackI just got hold of a toastrack, which is kind of strange. First of all, when I opened it, I spotted a socketed ULA and ROM, which is good, however, t…
... the kempston interface with composite socket will not lead any composite ... outside world.
The ROM is probably not the original ...Yet another glitchy graphics 48kHeyo, I'm new both to the forums (sorry if this is the wrong forum) and to Spectra I'm afraid, picked up a 48k from a steam fair sale thingy (not th…
... creates is from the MIC socket and the internal (rubbish) speaker ... Ltd (does this mean the ROM's OK?), but wouldn't ...Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... located between the power input socket and the metal heatsink.
ROM first, as you can then ...Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... the machine with an empty ROM socket then I invariably get a ... run the machine with the ROM inserted then I get a ... 'm thinking that either the ROM is borked, or the Z80 ... without another Z80 or ROM to try. The ROM is socketed, but ...
