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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 …
... ESXDOS and some loaders for 128K games , that expect certain system ... only work from within a 128K environment (a.k.a. ... fails to page in memory from different banks to load a 128K game ... address 23388 (sysvar BANKM on 128K machines ) just before doing the ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... be suggesting, to mimick the 128K paging mechanism in this extension ... /> If they test the page register and accessible memory, they would work ... they rely on some Sinclair 128K model ROM specific validation, they ... -
Some Graphic Coding & Audio help.Hello my fellow WoS'ers I am in the process of writing some code for graphical purposes - I have Z88DK raring to go but I do not know how to take…
... awareness), you could reserve memory space (in your mind) ... pass on the fixed memory address to the load ... uses the full 128k spectrum's memory). I'll show ... will generate an asm routine that needs to be ... compile code into multiple memory banks and it fully ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... be suggesting, to mimick the 128K paging mechanism in this extension ... /> If they test the page register and accessible memory, they would work ... they rely on some Sinclair 128K model ROM specific validation, they ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... be suggesting, to mimick the 128K paging mechanism in this extension ... /> If they test the page register and accessible memory, they would work ... they rely on some Sinclair 128K model ROM specific validation, they ... -
Accessing +3 DOS with DivIDE enabledI'm thinking about making a tool that copies files from a FAT partition to a IDEDOS partition. Currently, I've got two problems: - Getting the ESX…
... Loader option (or loading from 128k BASIC): every program works.
routine used on every program is ... ROM3 (and setting the RAM page). After jumping into machine code ... /> I made a better (longer) routine that allowed to change to ... -
Startup colours of the Spectrum ROMHi Folks, Thought I would have a go at changing the startup colours of the Spectrum ROMs used within BasinC which ships with 48.rom (16384 bytes) …
... /> // Trap the KEY-LINE routine
PutWord(@Memory[$0296], $00ED);
routine.
PutWord(@Memory[$12E9], $00ED); // Trap ... (@Memory[$1B6D], $00ED); // Trap launch the PLAY routine (if necessary) into the 128k ... -
So it occurred to me; "Why bother with going into 48K BASIC when you can just....wrap the machine code calls inside a 'RST #28;DEFW addr:RET'?" Of course, you DO need a small M/C routine to do that, and ta-daaa, here it is: [cod…
... to a machine code routine, while it retains 128k memory? In that case ... -
Shadow of the Beast review:New review at Spectrum Paradise, it's turn for the impressive Shadow of the Beast, an excellent game with nice and neat graphics, smooth animations a…
... -shifted scenery filling out the memory, but then the published version ... graphics I can hold in memory pre-shifted and how many ... screen tearing, but a 128K with page flipping wouldn't be so ... -
Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…
... ]
Paging out your interrupt routine or the stack are probably ... 128K programming.
The third is pointing I at contended memory ... , which will cause crashes on older 128K machines. -
Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…
... that the next byte of memory (from the ROM at ... 49152) for safety against the 128K architecture.
Go from ... if you can fit your routine in the 65 bytes ... the jump to fit your routine.
You can ... stack to the bit of memory you're not using, ... -
flashing 28C256 by diagnostic board?Is it possible to flash EEPROMs 28C256 by use of the diagnostic board? Which page I have to choose for address space #4000-#7FFF?
... by the CPU, you can page in either the bottom 16k ... 28C256's 32k byte memory.
The programming routine will have to ... -
how to load machine codeI'm reading Jon Caldwell's how to write Spectrum games but can't enter the code! Here's an example:_ LD BC, (score) Call 6683 I tried putting…
... Spectrum can address 64K of memory, addresses 0..65535.
memory.
After the ... variables and just use that memory the same as any other ... machines (like the 128K Spectrum) can electronically 'page-in' different RAM or ... -
how to load machine codeI'm reading Jon Caldwell's how to write Spectrum games but can't enter the code! Here's an example:_ LD BC, (score) Call 6683 I tried putting…
... Spectrum can address 64K of memory, addresses 0..65535.
memory.
After the ... variables and just use that memory the same as any other ... machines (like the 128K Spectrum) can electronically 'page-in' different RAM or ... -
1987-2017Here we are, with our tradional thread about games released thirty years ago, where we can contemplate how bad they have aged, how bad they [i]alread…
... routine running along with it. Try loading it in to a 128k ... Speccy and witness the glorius SPECTRUM SPECTRUM SPECTRUM memory bank ... -
What are the differences between the +2 and the +2A ?I only acquired a +2 for the first time in my life a few months ago. It works fine. :) I even managed to tracke down nearly all the wargames by the s…
... similar, and hence the memory contention is the same.< ... appear to have based the 128k memory layout on the existing ... the +2 (chapter 24, page 147), the +2A (chapter ... 24, page 195), and the +3 ( ... chapter 24, page 189). They all say the ... -
What are the differences between the +2 and the +2A ?I only acquired a +2 for the first time in my life a few months ago. It works fine. :) I even managed to tracke down nearly all the wargames by the s…
... appear to have based the 128k memory layout on the existing ( ... the +2 (chapter 24, page 147), the +2A (chapter ... 24, page 195), and the +3 ( ... chapter 24, page 189). They all say the ... the change in the memory contention layout wasn't ... -
c64 .sid player coming soon to specy 128!!!c64 .sid player coming soon to specy 128!!! the first old version uses only square waves, 4 years ago: https://www.youtube.com/watch?v=6CKt9noxA7s…
... loader is on page 2, and normally page 0 should be ... br /> During digi playback always page 0 paged in.[/quote]
routine.
[code]
BE44 xor ... test program
ROM 1: 128k syntax checker
ROM 2 ... -
DivIDE allram mode help neededHi guys, are there any DIVIDE wizards out there that can explain how i page in the allram and add a rom file to it i sometimes need to load spect…
... similar devices with compatible memory, but each use different ... known DIVMMC devices support identical memory paging = compatible with old ... external memory. At addess 0-8191 is always ram page 3 ... else during LDIR jump interrupt routine to divide rom...
... -
Copying a single character from one place to another?[code] ORG 33000 LD A,8 LD HL,16384 LD BC,256 LD DE, 18432 LOOP: PUSH AF LD A,(HL) LD (DE),A ADD HL, BC POP AF DEC A JR NZ,LOOP REST […
... how to set breakpoints on memory write etc. in SPIN ... matter where PC is in memory:
Code:
[ ... a condition that reads memory, this can be done ... on its own without checking memory / IO status but ... keyboard, and, on the 128K machines, to write to ... -
Ooze, Andy Johns - 2017Here is Ooze by Andy Johns, written using AGD Hacking and additional code David Saphier Music by Miguel and Raydan. http://zxbasic.uk/uploads/o…
... Alessandro
The original 128k tap is as follows :
@40000 data, this extracts to memory bank 4 @ 49152 after it ... data
The loading routine is within the code @25000 ... -
Xmas present from Hood:))Dear MB-02+ users, on my site[url="http://hood.speccy.cz"] http://hood.speccy.cz[/url] I have made quite significant update in download section. B…
... will be possible only after memory rerganisation. Use it well and ... : from version 2.6. PRINT routine regained its original speed.
- VIEW- page up adds one extra line ... will be only possible after memory rerganisation. There is a few ... -
Comp.Sys.Sinclair Crap Games Competition 2017As the creator of the second-least crap game in last year's competition (and the only mug stupid enough to agree to host it this year) I am proud/ash…
... .org/forums/discussion/54294/memory-questions]this thread[/url]:< ... This will be the 128K Spectrum's answer to NUTS ... and save a bit of memory that way (maybe). Then ... the original space in memory with the next block ... (no, really, just a page with "404" on it, ... -
Interupt service routinehas anyone set up a interupt service routing with pasmo? this one I tried resets the speccy EDIt- I placed the code after the END directive, I fi…
... ret
; Interrupt routine:
my_isr
push ... 56 ; Continue into normal interrupt routine
a_store
128K machine, you have to ... gaps and patches around your memory, but if you're ... -
128k memory musingI've been pondering on the 128k memory thing a bit, and it's just bloody stupid. The 64k memory space is divided in four chunks. One is always los…
... one video page that's not used for video memory). If I ... major selling points of going 128k in the first place.[/quote ... /> [quote]Since audio on the 128k doesn't need busy looping ... with Interrupt handling on the 128K and further models deserves another ... -
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…
... with RAM page 1 which is uncontended on the 128K/+2 so ... I can stick with the interrupt routine where ... -
ZX81 games in the ZX Spectrum by Russell MarksAfter having seen them for a while I always had the curiosity of knowing if they were somehow translated from the zx81 basic/MC to the Spectrum basi…
... emulates a ZX81 on a 128K speccy, there's also a ... emulates a zx81 on a 128K Spectrum, then I understand that ... executed exactly 16Kb higher in memory, and an additional render periodically ... is easy, and inserting a routine to update display is not ... -
Reading Disks via ASMI'm hoping to port my Amstrad game to the spectrum (See the link in my sig for info) I will be targeting the 128 and +3 - the game will not work on …
... /> I could do a software page flipped ver for the 48k ... the 64k version had to page in 16k of extra code ... loading (it was always in memory on 128k) - but this will not ... -
z88dk terminalsto set up a terminal a bunch of numbers are needed: m4_zx_01_output_fzx(_window_1, 0x2330, 0, 0, 1, 14, 1, 19, 0, _ff_ao_Prefect, 14, 0, 14, 8, 1…
... main) to allocate the memory needed by the driver. ... subclassing works. A specialized scroll routine may have better performance. ... changing the terminal to page mode and intercepting the PAUSE ... you could actually do a page turn animation. Having the ... -
z88dk adventure problemI downloaded the example https://drive.google.com/file/d/0B6XhJJ33xpOWaHYxek15WXJyQVU/view?usp=sharing I changed NUM ROOMS to 13 here is the who…
... 1 and got an empty page, no problem its a demo ... c/asm program can use memory starting from address 23296). If ... and graphics, you can go 128k or you may have to ...
