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404 for Retroleum's daignostic ROM: Request.[url]http://www.retroleum.co.uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum/[/url] I'm getting access denied when I try to downl…
... .uk/electronics-articles/a-diagnostic-rom-image-for-the-zx-spectrum ... try to download the Diagnostic ROM, I've just emailed the ... -
128k Toastrack Composite Video output confusion!Hi everyone. Ok, so I have a couple of 48k's that I have performed Wombles fantastic composite mod on. They work great here in Canada on my big scre…
... my hands on a 128k Toastrack. I am reading on these ... -
JET PAC ROM & INTERFACE 2Hi - I have two items for sale either singularly or together- A working Interface 2 and a working Jet Pac ROM cart- (in box but no instructions) I am…
... and a working Jet Pac ROM cart- (in box but no ... -
Strange ROM in grey +2I got a grey +2 for repair and I got it working. However, when I did some final testing, I realized there were no key-clicks either in 128K or 48K mo…
... expect. I pulled out the ROM and replaced it with a ... /> I wonder what is this ROM, are there any other modifications ... -
Need help finding multuface rom identification tap fileI've just recently got my first mf1 and I think it may be early it has a pass through and the hole in the case for the joy but no connector and in th…
... /> Maybe some body has the rom id tap file drop boxed -
ROM Calculator TrigHello, These Christmas holidays I finally have time to devote myself a little to the speccy . I have a question about how the ROM calculator implem…
... a question about how the ROM calculator implements cosine.
ROM just a simpler procedure.
ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…
... for fast detection of zx rom / computer model.
[URL ... +2 SPANISH
255 = UNKNOWN ROM
Source code:
rom type from 48basic rom.
I compare ... . Only original ZX Spectrum 48 rom contain byte #BF at address ...TR4/TR5 replacementHi guys, I've got another Spectrum I'm working on now - an Issue 4S this time. When I originally got it, I powered it up and did the basic tests a…
... I've now got some replacement parts for that so it ...Rom questionHi Can .rom files be viewed? I am curious to what the .rom file looks like. I saw some versions that have been modified and have source code to vie…
Hi
Can .rom files be viewed? I am ... curious to what the .rom file looks like.
So is a rom file just compiled assembly code ...Initial check - 128k ToastrackI was wondering if there are any guides to initial checks that can be performed on a 128k speccy (toastrack) before first power on? I've the excelle…
I was wondering if there are any guides to initial checks that can be performed on a 128k speccy (toastrack) before first power on?
I've the excellent ones on youtube for the 48k and wondered if there was something similar?Toastrack - poor state/non working requiredHi all, I'm after the rattiest, tattiest, non-working toastrack that can be gotten - I'd like to obtain one I can fully socket for testing my diagn…
... the rattiest, tattiest, non-working toastrack that can be gotten - I ...ZX81 SP ROM Disassembly<div>Hi All,</div><div><br></div><div>For anyone who is interested in ZX81 Assembler and ASZMIC ROM...</div><div><br></div><div>I have created a disa…
... in ZX81 Assembler and ASZMIC ROM...
I have created ... disassembly of the Comprocsys SP ROM for ZX 81 froman ... conjunction with the Comprocsys ASZMIC ROM or without (via ZX81 BASIC ... commands).
SP ROM Disassembly Xcode project is available ...Spectrum 128K Toastrack vs. +3 RGBGuys, I just got myself a DivMMC, and decided the 'pure' way to use it would be with my toastrack 128K running to a Sony CRT TV via RGB Scart. Wh…
... it would be with my toastrack 128K running to a Sony ... is much longer than the toastrack, and has the borked sound ... not as clean as the toastrack!)
So, my question ... +3 better than on a toastrack, or is there something up ...Toastrack fault - anyone recognize it?Hi I took a chance on a toastrack on eBay lately although it had a fault. The problem can be seen on the linked picture below. The problem sta…
... took a chance on a toastrack on eBay lately although it ...3D Printed Toastrack 'heatsink'Hi folks, I've developed a 3D printed reproduction of the Sinclair 128 Toastrack heatsink, which is suitable for replacing a damaged 128 heatsink,…
... reproduction of the Sinclair 128 Toastrack heatsink, which is suitable for ...Interface 1 Rom UpdateHi, I have an Interface 1 with a version 1 Shadow Rom, I would like to update it to Version 2. I think IF1 Rom v2 code could be burned into a T…
... with a version 1 Shadow Rom, I would like to update ... .
I think IF1 Rom v2 code could be burned ... there maybe a version 3 rom, was that ever released.Searching for correct Betadisk 48k TR-DOS v4.12 ROM (Save ROM via TRDOS-Prompt to Disk)Hi, I have two ROM-Files which should be read out from an original Betadisk 48 Interface TRDOS v4.12 (ROM-Size 8k). But when I compare them, they…
... br />
First ROM has Checksum: SHA-1: C8BAAEF66AB7FBF457BA76B783C02434CC5E2130 ...
Second ROM has Checksum: SHA-1: ... to
Vision GUI with ROM-size 16k.
Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …
... problem with the pixel address rom routine at 8874.
Going by the ZXSpectrum Rom Dissassembly book, I'm trying ...Replacement speakers for 16/48K SpectrumsThought I'd share a source of replacement speakers for the 16/48K machines: http://uk.rs-online.com/web/p/miniature-speakers/7903975/ (Equivalent…
... 'd share a source of replacement speakers for the 16/48K ...I recapped my 128K toastrack, installed stereo kit and detached audio from video, but...Hello fellow forumers! I'm seeking for help: I've finally decided to change all electrolytic capacitors of my 6U (with all Panasonics 105oC)... Af…
... to my 3rd (and last...) toastrack (6K this time), but check ...ULA Replacement??I searched, but maybe I just missed it. Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhap…
I searched, but maybe I just missed it.
Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhaps something else such as a microcontroller?
ThanksSlightly Damaged Toastrack HeatsinkI recently treated myself to a 128K+ on eBay and, although very well packaged, it looks like the heatsink has been slightly damaged in transit. Ov…
... issue with my beautiful new Toastrack is the foremost fin on ...WANTED Machinecode Routine for Paging in Betadisk TR-DOS v5 ROMI try to build a small MCode-program which writes the TR-DOS-ROM v4 / v5 to RAM adress 40000 an up. It´s working on TR-DOS v4 / Betadisk 48k: C…
... which writes the TR-DOS-ROM v4 / v5 to ... #3C06 = 15366 dez = DOS / ROM ON
;TR-DOS v4 ... I compare the Bytes from ROM-Files, it seems with ... copies the standard Spectrum 48k ROM to adress 40000
... and NOT the Betadisk v5 ROM (because it´s not paged ...128k toastrack helpHello everyone So. I just bought a toastrack 128k. No show when plugging into TV. The PSU is fine and tested with a multimeter. Chips are not gett…
... /> So. I just bought a toastrack 128k. No show when plugging ...spectrum 48k issue 3b coloured blocksI have pucked up a nice looking plus but when powered on get black or yellow border and random coloured blocks on screen, I have taken keyboard off a…
... and a replacement cpu fitted if it's the rom does anyone ...I don't think I'm getting the $22AA Pixel-Add rom routineDear all, I'm misunderstanding how the PIXEL-ADD rom routine works. My code... [code]ld b,175 ld c,1 call $22AA ld (hl),a ret[/code] So…
... misunderstanding how the PIXEL-ADD rom routine works.
My ... that, I'm assuming the rom routine at $22AA will convert ...Mastering Machine Code on your ZX Spectrum by Toni Baker - Chapter 17 Disassembling the ROMHi All, As promised I have posted the source code for the disassembler from Chapter 17 of Mastering Machine Code on your ZX Spectrum by Toni Baker…
... -baker-chapter-17-disassembling-the-rom/"]here[/url].
Thanks ...Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... Nebula - A Spectrum 48 ULA replacement module. You can read all ... -articles/nebula-spectrum-ula-chip-replacement-module/
(Big thanks ...
