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Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …
... tape.. but event thats too fast.think of it like this ... you have the limit of memory..
2)the far ... -
packers / crunchers and general compressionI'm just curious where I would find such things, coming from a c64 background also , there is shedloads. I mean the obvious things like crunchers fo…
... relocate part 2 down in memory after part 1.. and it ... and no music, even the fast loader was just that until ... -
just thinking about ...compo for zx 16k ? anyone ?
... interesting even without it, whole memory is contended, you really have ... and placed memory and finally your code builder builds fast unrolled routines ... -
Commodore 1541 disk Drive.I cannot find the original thread I said this in before so I'll start a new one. I am thinking of getting a commodore 1541 Disk drive for my old br…
... takes the cart port, if memory serves..
to give ... that these drives were very fast. These devices appeared from a ... -
Imagine loading by tape nowadays!!!!I was bored so i did some working out how long it would take to load a more modern game at the rate old speccy tapes do which is 1500 bps (bits). 8 …
... the Spectrum's actual memory - there's some ... uses LDIR - so as fast as LDIR will go. ... practical terms, it's fast enough to show full motion ... copying data to contended memory. Uncontended memory will be quite ... 't get nearly as fast as a lightweight 'protocol ... -
RAM PagingCan anyone shed some light as to how RAM paging actually works, at a hardware level (so not POKE xxxxx stuff). I know about CE and OE lines on DRAMs …
... .
Apart from controlling 64K memory addresses the Z80 can also ... ports. The (only!) difference with memory is that the /IOREQ line ... /CE and /OE signals for memory are created in a similar ... -
Jonathan Cauldwell writes.I also found this in me old archives, which was actually written by Jonathan Cauldwell. Again, typos and editorial tags included for authenticity ;-)…
... screen has to be as fast as possible, so tricks are ... written. If there is any memory remaining, novel high-score name ... -
More colours in existing games?I have been trying to follow the various threads about the new ULA and more colours. I don't understand quiet a lot of it as back in the day all I di…
... . It will use off-chip memory, and the real trick will ... the normal ULA timing. Thankfully memory is fast these days, so you ... -
Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
... inversion pattern testing, nor random fill testing. This kind of testing ... example, a random fill will detect failed address lines on a memory. -
ZX81 more powerful than the Speccy?I have been reading ?The ZX Spectrum Book 1982 - 199x? by Andrew Rollings (thanks again, Andrew - it?s a great read!). There are some comments in the…
... the other hand improve speed, memory and graphics constantly. Why spend ... tomorrow's will run it fast enough without the need to ... [/I] coming out thick and fast. -
ZX81 more powerful than the Speccy?I have been reading ?The ZX Spectrum Book 1982 - 199x? by Andrew Rollings (thanks again, Andrew - it?s a great read!). There are some comments in the…
... the other hand improve speed, memory and graphics constantly. Why spend ... tomorrow's will run it fast enough without the need to ... -
E-Book ReadersI'm looking to get myself a pressie in the sales and have got a hankering for a e-book reader..... So, anybody got one ?? any recomendations ?? Hop…
... the screen - i'm a fast reader
for me ... gonna be perfect, the removable memory means I can hold a ... -
2007, and still no NIC and browser for the Speccy?I've started to read all the w.o.s. threads, starting by the ones that came up with the search function, using the keywords of the topics that intere…
... , the Spectrum can only actually fill a fraction of that bandwidth ... more than the machine's memory bandwidth :-) However, just to recap ... -
Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... use much commenting - lack of memory, used short meaningless labels nad ... genre for coders. You need fast,smooth routines and the worst ... -
Turbo LoadersI absolutely love the different loading schemes that were used on the Spectrum over the years. There are a couple of questions that I have been meani…
... memory StarBike (on the Soft Aid tape) also had an incredibly fast ... one from here, not as fast as I remember now :( -
Fastest fill m.c. routine ever?What is the fastest fill routine you've ever seen? Is there a listing somewhere? Most games and adventures that use fill routines were considered slo…
Brian Howarth's games used to have pretty fast graphics. I don't particularly remember a fill effect though...
Art Studio had a pretty decent routine I thought although even that got bogged down with large fill surfaces. -
Fastest fill m.c. routine ever?What is the fastest fill routine you've ever seen? Is there a listing somewhere? Most games and adventures that use fill routines were considered slo…
yuup, alvin's is quite fast and reliable, plus you get nice 8x8 patterns to fill. I've used it in my infamous vector drawing routines. -
Fastest fill m.c. routine ever?What is the fastest fill routine you've ever seen? Is there a listing somewhere? Most games and adventures that use fill routines were considered slo…
... .
Unfortunately that flood fill and all versions of flood ... several 10s of K of memory to fill in a large empty ... turning that black breadth first fill into a pattern filler. That ... quickly.
The flood fill algorithm works for all kinds ... -
My graphics card started playing up today.All of a sudden, flashing squares and other artefacts began appearing on my screen. It's an nVidia 6200LE, a fanless kind in a PCI-E slot. Well, I th…
... I use the memory on them as very fast disks ? like a ... -
Mass storage - why backup battery?I wasn't sure to post this under "hardware" or "development", but here goes: There are these mass storage devices for ZX Spectrum, and on many desig…
... One True Way to do memory for Spectrum peripherals.
* Fast to write to - same ... * Writing isn't so fast - you can't just ... have extremely robust nonvolatile memory for the firmware. On ... - mass storage is fast enough that there's ... -
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... of 256 UDG characters in memory. It's up to you ... shift the data around and fill in the edges. -
Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…
... something in-between small and fast. It's self modifying code ... /> djnz FillScrLinesLoop
;now fill the table in reverse
Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…
... code can only be as fast as it's slowest component ... to the Microsoft view that memory and CPU is cheap these ... . Getting code to run fast usually increases the memory footprint, so with ... have a "well it's fast on my PC, look at ...OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…
... ).[/QUOTE]
I think, from memory, that the big difference, and ... (the runtime) is really really fast and has a low resource ...OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…
... artefact of the Windows virtual memory manager which can leave you ... bit of the Windows virtual memory manager that figures out what ... make it very fast to reference frequently used memory pages. Being an ... actually touching most of this memory, and most of this ...OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…
... artefact of the Windows virtual memory manager which can leave you ... bit of the Windows virtual memory manager that figures out what ... make it very fast to reference frequently used memory pages. Being an ... actually touching most of this memory, and most of this ...How do you destroy an enemy or object?Hi guys I allways wanted to know this, but how would you go about making and destroying enemies in basic or any language? What, do you use a huge ar…
... forgot to mention the block memory allocator in z88dk which is ... list of available fixed size memory blocks. Allocating a certain size ... allocating and deallocating and very fast in terms of cycles consumed ...Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... have all sprites in memory and still have fast game. it will ...
everything revolves about memory usage at this moment.
