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Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... The required offset is passed to (ROM)
0x5B36 LD C,(HL ... ; the C register and used to (ROM)
0x5B37 ADD HL,BC ... before the first character to be considered.(ROM)
0x5BA9 LD ... the 'starting address' has to be found.(ROM)
0x5BBB JR ... -
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…
... exactly ideal for dumping into ROM/RAM.
... RAM, but in order to have access to ROM contents (allow paging ... that completely overwrite BASIC/ROM system variables, to use maximum memory, ... routine in ROM.
I'm also starting to realize ... -
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…
... different beast), You may want to store a "chunk" of every ... will dump all three slots to RAM leaving untouched the stack ... boot slot and transfer control to ROM code to copy the last 64 ... update the registers and jump to ram.
Depending on ... -
ZX Dandanator! Mini - Cartridge system for SpectrumsHi All, I'd like to present a little HW I've developed during the last three months. It's aimed at providing a console-like usage experience for a…
... the start of the second ROM slot, so if it ... up in that ROM it knows it has to load a ... that copies itself to RAM, runs, switches back to ROM 0 and jumps ... and the reset to boot into the menu ROM, boot into the ... NMI into the game-load ROM, however the user wants ... -
How to get more than 21 UDG's in BASIC?So with graphics mode under the G cursor how many UDG's can you do from BASIC is it 21? It's all POKE 65368 and above and it's sequential ABCD.... an…
It's also possible to change the address for your ... . It is by default set to ROM but you can define your ... -
How to get more than 21 UDG's in BASIC?So with graphics mode under the G cursor how many UDG's can you do from BASIC is it 21? It's all POKE 65368 and above and it's sequential ABCD.... an…
... ;886911"]It's also possible to change the address for your ... . It is by default set to ROM but you can define your ... actually but I would have to decode that "font" pretty impressive ... -
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…
... that you should jump to the ROM MASKINT as the last ... ISR ]
JP MASKINT ; Jump to ROM maskable interrupt routine at $0038 ... nothing, it's difficult to see if it is working ... HL
JP MASKINT ; Jump to ROM maskable interrupt routine at $0038 ... -
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 …
...
I'm doing things to ROM. Nasty things. Like a debugger ... .htm"]The only solution to ROM emulation I found is ... It requires downloading ROM via serial port to Spectrum and then ... a device connected to PC, flash ROM, run ROM emulator and switch ... -
I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... I try to clear out the little spiders Rom cast spells on ... I started fighting Rom he magically appeared next to me and started ... me a minute to figure out how to get to Rom though, I hope ... I was supposed to kill ... -
I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... I try to clear out the little spiders Rom cast spells on ... I started fighting Rom he magically appeared next to me and started ... me a minute to figure out how to get to Rom though, I hope ... I was supposed to kill ... -
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…
... /> After reset you can use rom for own software. Fonteditor may ... font 8x4 and save back to rom area, then test without any ... -
Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... reading/writing operations really influence to the floating bus value. (And ... that even reading/writing to ROM page leads to changing floating bus value ... -
Any emulator with divIDE IDE mode only ?Hi, Is there any emulator that supports divIDE in IDE mode only ( no divIDE ROM paging ) ? All seem to always enable divIDE ROM when divIDE interf…
... too clear, I was referring to DivIDE ROM.
[b]In ... ZX Spin:[/b]
- Go to ... DivIDE.
- On Hardware, go to ROM image. On DivIDE firmware, you ... option labeled as "Writeable DivIDE ROM". If this option is CHECKED ... -
Quick questionHello, can someone tell me what the screen looks like when you power a 48k spectrum that has no ROM chip installed ? Thank you. François
... of these signals are routed to the ROM.
One goes ... to pin 20 ( /CS) and one goes to ... CPU (pin 21) is routed to ROM pin 22 ( /OE0).
For the ROM to output data, it needs the ... -
ALIEN (Mindgames) Bugfix and Improvement.[code]ALIEN (Mindgames) [ZX SPECTRUM] BUGFIX & IMPROVEMENT by Ersh 2016-10-29 The following bugs are fixed: [BUG] INVENTORY BUG WHEN SWITCHING …
... instead of being
localised to ROM $0000-$1FFF as intended. ... holding the
pointer to the current character's variables ... not, give the
option to 'Remove Grill'.
... Bugfix' text and version number to the loading screen.
... -
Printing text, part MMXIIXI'm pretty sure there's been a zillion threads about this already, and I don't think it's the first one by myself either, but here goes. Proportiona…
Those are cool! And honestly they are also things that a compiler could be able to do. (Assuming, of course, you're not compiling to ROM) -
Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... things up is replace calls to PIXADD ROM routine at $22AA with ... + T Cycles per call compared to ROM PIXADD
[ ... /> ;
; On Entry (same as ROM PIXADD routine at $22AA):
; On Exit (same as ROM PIXADD routine at $22AA):
ZX Spectrum EmulatorsI'm putting together a (hopefully) comprehensive list of all ZX Spectrum emulators available for the new WoS site. Obviously we'd like the latest …
... the first byte drawn to screen is from 16400 ... . It may be used to have a double buffer ... is already cramped without having to reserve another 6912 bytes) ...
That is not related to ROM but CRTC (in this case ... the banking register to do double buffer).ZX Spectrum EmulatorsI'm putting together a (hopefully) comprehensive list of all ZX Spectrum emulators available for the new WoS site. Obviously we'd like the latest …
... the first byte drawn to screen is from 16400 ... already cramped without having to reserve another 6912 bytes) ... /> That is not related to ROM but CRTC (in this case ... use the banking register to do double buffer).[/quote ... In fact I said to polomint elsewhere that I ...ZX Spectrum EmulatorsI'm putting together a (hopefully) comprehensive list of all ZX Spectrum emulators available for the new WoS site. Obviously we'd like the latest …
... the first byte drawn to screen is from 16400 ... already cramped without having to reserve another 6912 bytes) ... /> That is not related to ROM but CRTC (in this case ... use the banking register to do double buffer).[/quote ... In fact I said to polomint elsewhere that I ...ZX Spectrum EmulatorsI'm putting together a (hopefully) comprehensive list of all ZX Spectrum emulators available for the new WoS site. Obviously we'd like the latest …
... is already cramped without having to reserve another 6912 bytes) ... />
That is not related to ROM but CRTC (in this case ... and use the banking register to do double buffer).[/quote]< ... />
How dare you speak to me !!!!!![/quote]
Somebody has ...Scrolling loader counter in 85 T-States?Would it be possible to write a scrolling loader counter in 85 T-States? I have a custom screen load routine that loads attribute first, then the …
... stripes, have the border black to start, gradually fill the border ... with blue from top to bottom. When border is totally ... it'd have to use an IM2 routine to achieve desired result.
Scrolling loader counter in 85 T-States?Would it be possible to write a scrolling loader counter in 85 T-States? I have a custom screen load routine that loads attribute first, then the …
... stripes, have the border black to start, gradually fill the border ... with blue from top to bottom. When border is totally ... it'd have to use an IM2 routine to achieve desired result.[/ ... luck!
Also, due to very finicky timings, interrupts are ...An Xmas ProjectI'm looking for a small project to do while I'm off this Christmas and I quite like the idea of improving an existing game in the way some of the guy…
Maybe another project would be converting a 16K game to ROM cartridge (also for speed?).Wanted Software to Swap for Rom Carts ;)Wot I have for grabs is 4 Complete ROM Carts which I will swap for my wants below Horace [url="http://www.cornishdavey.dsl.pipex.com/4.jpg"]http://w…
... grabs is 4 Complete ROM Carts which I ...
Prelude aka. Prelude to D-Day
Sealed ... /> Fundamental Algebra
Introduction to Trigonometry
Mental Arithmetic ... /> Thro' the Wall
Vector Mathematics
Weathermaster
...Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…
... used
to fill the gaps in ROM /translation: useless/.< ...
QUESTION: disclaimer ... ROM overwrites address FFFD thus ...what ... it. If we create our vector table before
the ...
code with our "create vector table" code?
...Rom Cartridges Wanted - ?25 to ?35 for each title!Hi I am after any Sinclair Interface 2 Rom Cartridges that anyone wants to part with! I will pay ?35 for any Ultimate title or ?25 for the rest. The…
... Sinclair Interface 2 Rom Cartridges that anyone wants to part with! I ...Yet another TR-DOS questionI have yet another TR-DOS problem. I am using "LD C, command; CALL #3D13" to call the system functions. The problem is that TR-DOS automatically enab…
... "LD C, command; CALL #3D13" to call the system functions. The ... the ROM will be executed. This must NOT be allowed to happen ... can't switch to IM2 and vector the interrupt to something harmless like a ... -DOS doesn't seem to work in IM2 !
Does anyone ...IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... the program counter is when im2 is called
... ei ;interrupts. Jump to 0056 in ROM
jp 56 ... /> IM 2 ; select IM2
ei
... /> ; 0FD00 - 0FDFCH Reserverd for IM2 Interrupts
ORG ...Scr to vectorBack in 1989 I saw 2 m.c. routines that impressed me. One could convert a certain area of the screen (up to 6144 bytes) to vector images. And the sec…
... of the screen (up to 6144 bytes) to vector images. And the second ...
