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Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…
... display properly) and I can read my BIOS' Flash utility' ... , select Edit -> Fill Memory Block. Apart from the fact ... -> mark as byte data. The line now changes to ... you'll see that the data has just become one big ... files too. I have lost data this way, so I ... -
Breakpoints in debuggers in emulatorsA breakpoint, according to Wikipedia ( [url]http://en.wikipedia.org/wiki/Breakpoint[/url] ), is an intentional stopping or pausing place in a program…
... at a given location in memory and your Spectrum emulators stops ... kind of breakpoint, called [B]data breakpoint or watchpoint.[/B] The ... tries to read and/or write from a given memory cell.
Isometric games map formatI'm interested in your opinion: What is the best way to store map data for isometric games ? SOmething like Head over heels ? I read in one place t…
... best way to store map data for isometric games ?
SOmething ... over heels ?
I read in one place that Jon ... his map data so it occupied very small chunk of memory...
data is 512xhunreds...
Off course ...oh my the old days :)programming on the speccy again here is a routine i remember of the top of my head to load screens or code without a header wow 5 Clear 27999 : Re…
... 5 Clear 27999 : Rem clear memory for usr 28000
10 ... 0 TO 12
35 Read a
38 Poke 28000 ... i
50 Data 221,33,0,64,17 ... /> structured break down of the data
221,33 ...
just a memory reload thats all
BASin r14c - maintenance releaseAfter the recent discussions, BASin has been released as version 14c. It's only a maintenance release, and some of the really big new features are un…
... [/url]
And can read about some of the nifty ... current mouse position in screen memory to the paintbox's statusbar ... /> Fixed - Tapes made with $11 data blocks would cause a crash ... . (LCD)
Fixed - Lines (particularly DATA lines) that use the BIN ...Some more questions for the WOS geniuses to ponderSome questions whilst I'm waiting here: 1.Why do cars need ariels to receive radio stations? I mean, you're driving around in a lump of metal, so w…
... />
2 Is flash memory fragmentation a problem? I mean ... I mean, try to read a damaged disc, and ... stop, when trying to read a problematic disc? DOS ... bits, the speed and memory limitations made complex AI ... the program/audio/graphical data, but Mr Do!, ...Help Identify a Kid's Book I Read Many Years AgoI'm not sure why but the memory of reading it just popped into my head today and I'm curious about it now. It was about a young London girl called Pe…
... not sure why but the memory of reading it just popped ... 10 years old when I read it) and the details are ...New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…
... program:
[code]1 DATA 243,33,9,88,229 ... j=z TO z+167: READ b: POKE j,b: ... ei
ld bc,65278 ;read keyboard caps to v
ld bc,32766 ;read keyboard space to b
memory, add-ons etc most welcome ...IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…
... used to "read" screen data as it's retrieved from memory by the ... the border, and starts reading memory to generate the work area ... cycle that might affect contended memory, and the ULA stops the ... released the data bus, and the Z80 can only read FFh (floating ...How feasible is it to add a second CPU to the ZX Spectrum?Today with IDE, and USB, and TCP/IP and other wonderful technologies arriving on the ZX Spectrum, I'm beginning to wonder if we'll run out of CPU tim…
... , 1 mean write, 2 mean read, 4 mean execute (i.e ... the memory of CPU1, then simply put the address and data in ... write multiple values in adjacent memory locations, by having CPU1 automatically ... we replace the existing memory with faster memory, would we then be ...Thoughts on laptop upgradesI have been given an old laptop, an IBM Thinkpad 600E for free. Some of the specs are as follows: Pentium II @ 364 MHz. 256KB cache. 128 MB PC-66 RAM…
... , but I think I've read that the 600E doesn't ... very little power and they read very quickly. The only write ... , but not swapspace (virtual memory) or user data that changes frequently.
Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... />
All documentation I've read about contention state that the ... the CPU. I haven't read this anywhere before. Did you ... that ULA is reading video data. I've located the scope ... the responsible for generating all memory accesses.Skool disassemblies onlineThe Skool Daze and Back to Skool disassemblies (previously announced in too many places on this forum) are now browsable online: [url]http://pyskool…
... :
[b]Data disassemblies[/b]
Just like ... machine code routines, every data block now has its ... a data block, just follow the link from the memory map ... be found in a data table at 40700, now ... no consequence dutifully recorded. Read up on how to [ ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... program as opposed to graphics data etc
org 33000 ... over and over
;read keyboard
;set new ... or two bytes of data afterwards for the computer ... computer then expects 2 data bytes to give it a ... bytes are now at memory address 33000 by clicking ...WAV to TZX or TAPHi, I've saved a Spectrum tape I have to several WAVs by connecting my tape data recorder to the soundcard MIC port and using the Adobe Audition 1.5.…
... WAVs by connecting my tape data recorder to the soundcard MIC ... , mono.
I successfully read all WAVs by using Realspectrum ... on my Data Recorder and has serious troubles to read my tape ... tape duplicator in the Spectrum memory, and copy a WAV to ...Wrong-endian data table?I'm drawing up the memory map for something I'm writing. I'll be using machine code on a byte array of 256 elements, each element consisting of 64 by…
I'm drawing up the memory map for something I'm ... [/b], and it can be read using [b]LD A, (HL ... would be working against the memory read cache. Not an issue with ...Data from spectrum to compilerWhat's the easiest way of getting data from a virtual spectrum to assembler? I've designed some nice shiny graphics using BASIN but I'm not sure how…
... the easiest way of getting data from a virtual spectrum to ... sure how to get the data to a series of DEFB ... memory.
What's the easiest way of getting screen data ... ...
But getting the data out is the key, here....More questions to ponder/argue/ignore as you wish...Just copying some stuff to a memory stick, and I found some old questions I'd intended to post on these forums to provoke debate, that I'd never got …
... some stuff to a memory stick, and I found ... possible when so much data has to be checked ... 9. Some time back, I read a thread where some people ... vary for each program's data, and only the console ... consoles CPU(s), graphics card, memory, etc, then you might ...128kB software with incorrect memory pagingI search all ZX software using incorrect memory paging via OUT (253),A. This software must write to port data value with D6=1 for compatibility with …
... all ZX software using incorrect memory paging via OUT (253),A ... software must write to port data value with D6=1 for ... use on this computers different memory pages.Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... project.
I already read I can use hookcode #11E ... this does not affect the memory between 0x4000 and 0x7fff, ... which sends the midi data for example. Am I ... So after sending the midi data I need to reset ... A' should have the Midi-data when RST #11E is called ...Resolving USR entry point into a data + m/code block?Well, I had another look at that Merlin listing and decided that blowing up the faint page made it possible to read everything (with a struggle). How…
... page made it possible to read everything (with a struggle). However ... chunk of hex is obviously data of some sort rather than ...Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... blocks of data quickly. However, this requires several kilobytes of memory - it ...Any MCODE programmers fancy a challenge?Hi Folks, I have been using the Micro-Print utility in the archive and found it to be really good. It is the one that provides 32, 36, 42, 51, 64 a…
... be romoved thus saving more memory.
Is there any ...
200 REM --------------------------
210 DATA 32,36,42,51,64 ... LET li=0
240 READ no
250 IF no ...How the spectrum generates the video from ramHi everyon, I know that most people here allready know this but i think i found out how the spectrum acctually dispalys stuff and why the LD x, (HL)…
... the z80 sends the data onto IO and the ... to video memory and the rest to program data, but ... not be read is when writing to the video memory, beautiful ... and you write your data hence writing stuff to ... video memory and the second chip stores the program/data. ...Kansas City Standard tape data --> File?Someone here will know this. Does there exist a utility to read Kansas City Standard audio tape data from an audio file (e.g. WAV or similar) and d…
Someone here will know this.
Does there exist a utility to read Kansas City Standard audio tape data from an audio file (e.g. WAV or similar) and dump the raw bytes to a file?
Thanks!What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…
... by +3DOS while doing read operations from the disk ... block is loaded into main memory, and then, the ... be loaded in "extended" memory. To avoid side effects, ... the end of main memory. A CLEAR 25000 is ... use nearly all the available memory in all pages) succesfully ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... SCREEN$ (or any segment of memory) in ZX BASIC without resorting ... +8: READ v: POKE a,v: NEXT a:
DATA 65,36 ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... particular file containing the game data (.tzx, .z80, whatever ... they contain binary data produced from asm files ... Which asm instructions and memory regions are responsible for ... read about special applications for checking correctness of microprocessor/memory ...SpecBAS 0.646 now available.Yay! Here's another round of bugfixes and additions to the Program. Not so much of the extract coding features, but more back-to-basics this time: […
... .
READ LINE strvar - will read whatever comes next in a DATA sequence ... about the next DATA item (0 - no more DATA, 1 - number, 2 ... in size) from and to memory banks.
Inline ascii characters ...Commodore 64 - First time trying - REVIEW & Pictures!Right, so the 2nd hand shop was selling this Commodore and accessories. So I decided to buy it, as I've never had a Commodore and this is my first ti…
...
Commodore 64 computer
Data cassette recorder
1514 big ... now plugged in the printer, read a bit of the manual ... complicated, you have to POKE memory to change colours! yaghgh!
