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128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... [/url] which suggests checking ROM address 19 which will give ... .[/quote]
Checking ROM contents to determine model is ... can get unreliable results if custom ROMs are fitted. You should ... spectrum model to determine the ROM size.
On ... -
Flicker free animation in BASIC, is it possible ?With all my various noodlings in BASIC and indeed with my so far limited assembly I keep coming up with the same issue. How do you do animations wit…
... 2. Before it leaves the custom interrupt service routine, however, it ... jump to #38—the standard ROM interrupt service routine, which polls ... -
Which is the best divMMC? The 'Enjoy' or the 'Future'?Here's a link to the divMMC 'Enjoy' - http://www.bytedelight.com/?product=divmmc-enjoy-black-edition And a link to the divMMC 'Future' - https://www…
... the disk with their own custom loader. I guess TAP files ... are recorded with the original ROM loader should work fine anyway ... -
ZX ROM in 64 characters a lineDear ZXS users, I am glad the today's release is not only concerning MB-02+ as it is normally the case with me, but it concerns really everyone, sinc…
Custom roms?... Yep, we're interested!... :)< ... curious about your adapted 48k rom... Im curious whether it can ... -
ZXBaremulator 35th anniversary editionHi, to celebrate the 35th Spectrum anniversary, I've released the first complete Spectrum 48K bare-metal emulator for Raspberry PI. It's available…
... used some games with heavy custom loaders and long file names ... loader uses a non-standard ROM LOAD routine. -
ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …
... used to replace the existing ROM, the parasite computer does ... controller can receive a new "ROM" file from the parasite computer ... accesses it, as the Sinclair ROM code both deliberately and accidentaly ... as you could load a custom control program in RAM. Just ... -
Not bored with the Boards.Going through some old tapes stored rather badly I came across an unlikely item that that I must have stored away quickly with other low grade items …
... 74LSxxx logic, not the second custom Sinclair chip).
[*]Turned pin ... EPROM and a normal ROM (for testing ROM chips). And a switch ... chips.
[*]Same with the ROM, Have test links that can ... to take either type of ROM chip.
[*]Have been ... -
ZX Spectrum Test PCB I recently read about one of these (I think it may have been the Retroleum site but I am not sure) and I thought "What a great idea" . As pictured …
... 74LSxxx logic, not the second custom Sinclair chip).
[*]Turned pin ... EPROM and a normal ROM (for testing ROM chips). And a switch ... chips.
[*]Same with the ROM, Have test links that can ... to take either type of ROM chip.
[*]Have been ... -
Successful ZX Spectrum hardware teams The first successful team that is known about . It is (I think) Sinclair , Altwasser , Vickers and Dickinsion. Since the Beatles we have known a…
... spectrum. One could argue the ROM was clever in terms of ... stock components. The only real custom chip was the video ULA ... apart from it's single custom chip (built using a different ... -
hacking controls for atic atac?I was wondering if there is any way to hack in game controls? In particular for Atic Atac. I prefer to use keyboard controls for most games, but the …
... ROM print routine, and patched the sysvars to point to their custom ... -
SkoolKit 6.0SkoolKit 6.0 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into assembler-friendly ASM forma…
... a version of the 48K ROM tailored to the [url="http ... was looking at making a custom AsmWriter.
The main ... -
SkoolKit 6.0SkoolKit 6.0 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into assembler-friendly ASM forma…
... don't think making a custom AsmWriter is the best approach ... to be easy to add custom macros and #CALL methods to ... defined on ROMAsmWriter (in the rom.py extension module), not AsmWriter ... -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... /> ; Fire 35335
; Custom 1 35336
; Custom 2 35337
CALL 949 ; ROM beeper routine
RET
Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... the time you call the ROM routine for printing a string ... a terminator byte or the ROM routine at $203c.
custom-tailored solutions work much better ...Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... the time you call the ROM routine for printing a string ... a terminator byte or the ROM routine at $203c.
custom-tailored solutions work much better ...Best and worst loading coloursWas just thinking the other day about this, what are the worst / best loading colours that have been seen ? :) Apart from loaders with either mult…
... to jump halfway into the ROM loader and change the colours ... 48k ROM I've been able to load an SCR with custom ... patch ROM to
rem load headerless screen data with custom border ...A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... weren’t happy with the ROM routine at $31e simply returning ... that the best code is custom written. Then again, it’s ...Hacking the ZX Spectrum 48K ROMHi Guys, I have modded my Speccy with a dual boot ROM loading on first bank the original ZX kernel and on the second bank an enhanced version. I h…
... each memory address of the rom is filled with HEX instructions ... https://skoolkid.github.io/rom/index.html"]ROM disassembly[/url], particularly as ... any games that use the ROM as data.
[ ... a custom character set; which you can insert into the ROM as ...ZXBaremulator v2.0Hi all, I've released the new version of my ZX Spectrum bare-metal for Raspberry PI. The new features and the images can be found on my project si…
... feature, loading an external rom. Say you hit F1, ... custom roms for development work, say, running a forth rom or a custom ... assembler/compiler rom, for instance... ... (because custom roms load their programs into ROM rather than ...Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... reliable if people are using custom ROMs?[/quote]
Well, not ... if people arbitrarily change the ROM image.
As for ...Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... copyright message area of the ROM to check for the 'A ... /> Unfortunately, it's fooled by custom ROMs like the +3e, so ...Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... reliable if people are using custom ROMs?[/quote]
Well, not ... if people arbitrarily change the ROM image.
As for ...ZX-Uno moddingStarting with ZX-Uno case modding I have not yet received my ZX-Uno yet (it is in the post) but I know that I will have to do at least one mod …
5) Relatively easy to swap out ROM's for custom roms...48k packed up after cap changeHi all, I'm relatively new to the Sinclair world, my 8-bit repairs in past was lurking in the dark sides of Acorn, Amstrad and Commodore! I've got…
... not processing instructions from the ROM. Either there is an ... ), or either the CPU or ROM are defective."
... have a replacement ROM from Retroleum, which is a custom unit with ... both the original and a GoshWonderful ROM images ...Witchcraft: Nirvana, Bifröst and such[url="http://www.rgcd.co.uk/2011/10/buzzsaw-zx-spectrum.html"]"When considering this next to nearly every other ZX Spectrum game though, Buzzsaw is l…
... you don't know how custom interrupt routines are being set ... a ROM routine at address 56.
IM2 is a custom ... I to a bit of ROM that's full of 255 ... with the first byte of ROM to make a small jump ... on 128K machines where the ROM is different.Multiface ResidentI'm thinking about adapting some existing code to be Multiface "resident"... but being perfectly honest I'm not quite sure where to start. Any top t…
... 'IN'
;MF1 4b31a971 mf1.rom (E4)"
;For the ... '
;Here's our custom code. This will simply turn ... 'OUT'
;MF1 4b31a971 mf1.rom (E4)"
rst 0 ...Multiface ResidentI'm thinking about adapting some existing code to be Multiface "resident"... but being perfectly honest I'm not quite sure where to start. Any top t…
... 'IN'
;MF1 4b31a971 mf1.rom (E4)"
;For the ... '
;Here's our custom code. This will simply turn ... 'OUT'
;MF1 4b31a971 mf1.rom (E4)"
rst 0 ...Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... /M or 48k ROM.
Developed in asm ( 1991 ) custom filesystems and ... diskette because no space on ROM for the aditional code. Spend ... empty space on regular 48K ROM ( ~1.3K I remember ) ... series cips including CPU, RAM, ROM.
No read contention on ...Spectaculator 8.0 and 47loaderHi all I'm messing with [url="https://github.com/stephenw32768/47loader"]47loader[/url] (which is GREAT and very fun btw) and I find that Spectacu…
Custom loaders are pretty cool, but ... second one using the standard ROM loader, which to me just ...Spectaculator 8.0 and 47loaderHi all I'm messing with [url="https://github.com/stephenw32768/47loader"]47loader[/url] (which is GREAT and very fun btw) and I find that Spectacu…
[quote="Hikaru;948355"]Custom loaders are pretty cool, but ... second one using the standard ROM loader, which to me just ... I still like to see custom loaders :D
