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+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... set to point to contended memory still occurs, and also appears ... set to point to contended memory.[/quote]
Will the ... to special paging mode, with RAM bank 4 (contended memory) in 0x0000 ... -
Seeking alternatives to DATA statementsAnyone know of any memory saving alternatives to storing a list of numbers, other than using DATA statements or poking data into addresses?... Im ti…
Anyone know of any memory saving alternatives to ... ways of outputing the basic other than producing repetative ... still technically be called BASIC (rather than crossing over ... to be allowable in any BASIC crapmo competitions & ... 60,1,71
128 DATA 1,79,17, ... -
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 …
... , this requires several kilobytes of memory - it would be much less ... :
rept 8
ldi ; 128 = 16*8
endm
Loading BASIC programs stored as "bytes:"Hi all, I have a question regarding loading BASIC programs, that I managed to save as machine code (I suppose) when I was a child, as a result of e…
... have a question regarding loading BASIC programs, that I managed to ... exact address of memory where ZX Spectrum 48k stores BASIC programs upon ...128 ToastrackHi All Just my hands on a 128 Toastrack and have a couple of questions. OK, I have never ever used one of these before so please excuse my ignoran…
... /> Just my hands on a 128 Toastrack and have a couple ... out ?
After selecting Basic mode how do I get ...Faulty Interface 1I bought a 'tested' Interface 1 on ebay the other day. Aside from the previous owner 'cleaning' the contacts with WD40!!! (bad, bad, bad eeurrgh :rol…
... up, I can use 128 BASIC but not 48 BASIC, as exactly the ... do with a fault in paging the IF1 ROM but was ...Loading a screen in to memory...Hi Folks, I want to load a SCREEN$ in to memory and save it out to RAM disk without it being displayed on the screen. I am worried about over writi…
... load a SCREEN$ in to memory and save it out to ... am worried about over writing BASIC memory so would the following work ...zx spectrum 48k loading issue (memory problem i think)Hi I have a 48k spectrum that until yesterday was working flawlessly. The spectrum seems to work fine but the problem is with loading games.All the …
... of Memory ; B - Integer out of range ; C - Nonsense in BASIC.
memory problem.
Is there a ...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…
... block is loaded into main memory, and then, the program starts ... pages is really straightforward: from BASIC a POKE 23388,16+n ... to be loaded in "extended" memory. To avoid side effects, I ... use nearly all the available memory in all pages) succesfully? Do ...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…
... ]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really ... $ (or any segment of memory) in ZX BASIC without resorting to a ... using only standard ZX Spectrum BASIC - and it's not an ...Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…
Hi Folks,
I am using the following method to calculate the amount of free memory available to BASIC:
[CODE]PRINT 65536-USR 7962[/CODE]
Is this the recommended approach?
Many thanks
PaddyDead 128 ToastrackHi! I bought 128 toastrack motherboard and seller said it's working. Maybe it was when he sent it but motherboard was only put into envelope. So it …
Hi!
I bought 128 toastrack motherboard and seller said ... search failures (regulators, transistors and memory ICs).
Ippe128k RAM paging from BASICI'd always thought that OUT had to be used to page RAM, which from BASIC would be an "OUT 32765,ddd" command, although I don't know if just doing tha…
... to page RAM, which from BASIC would be an "OUT 32765 ...hisoft basic compiler - saveAnd yet another question. I'm sure spamming forums a lot hehe :) Is there anyone expirienced with hisoft basic compiler? I'm working on small program…
... there anyone expirienced with hisoft basic compiler?
I'm working ... instead of four (much more memory efficient, too :) and now i ... save it.
Unfortunately hisoft basic will not compile save command ...saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …
... to save part of a BASIC program. The idea is that ... TO )=l$+CHR$ 0+CHR$ 128+l$
9994 PRINT #0 ...Display half a screenWorking in 128 Basic and saving screens to memory via - SAVE! "image" SCREEN$ . Is it possible to display just the top half (or the bottom half) of t…
Working in 128 Basic and saving screens to memory via - SAVE! "image" SCREEN$ . Is it possible to display just the top half (or the bottom half) of the screen ? (leaving the bottom half of the previous screen visible). Thanks in advance.How to use Spectaculator 7.01 for BASIC ?It does not work for me. Problems with the keyboard - in 48 and 128 Mode. Nor can I move downwards with the "Down-Arrow" from: 128 TAPE LOADER 128 BA…
... keyboard - in 48 and 128 Mode.
Nor can ... from:
128
TAPE LOADER
128 BASIC
CALCULATOR
48 BASIC
My prime ... use my registered Spectaculator for BASIC programming, but it seems ...A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... is that it uses more memory (obviously), but I find that ... ,1,1}, {0,128,120,2,0}, {0,128,56,2,0 ... uchar backwalls[];
// Memory to define the background.
+3e with DivIDE systemsIf we replace old R-GAL chip on original DivIDE with new XR-GAL (this is only firmware for GAL chip) then will possible DISABLE or ENABLE any DivIDE …
... />
This routine reset DIVIDE paging port and disable system.
If any code switch +3 basic to USR0 mode (SPECTRUM command ... 128kB memory.
For return from 48basic to +3 basic we ...storing machine code in BASICA couple of years ago I posted a routine for storing machine code between PROG & VARS, based on an idea in Toni Baker's "Mastering Machine Code". Thi…
... saved & loaded with the BASIC, as if it was in ... after the last line of BASIC, even though the m/c ... and doesn't need any BASIC to be typed other than ... $("D",ov)+FN d$("E",128):
GO SUB 9165: POKE ...What is the (hypothetically) largest 9999 lines BASIC program possible?If the Speccy had infinite amounts of memory, what is the largest 9999 line BASIC program that could be made? (in K and amount of instructions) (Yet…
... amounts of memory, what is the largest 9999 line BASIC program that ...Star BASIC or *BASIC??? Anyone heard of this?Does anyone remember a thing called Star Basic or *basic? It was a tape that extended the BASIC instruction set and from memory you put a * in front…
... remember a thing called Star Basic or *basic?
It was ... that extended the BASIC instruction set and from memory you put a ...SPECTRUM command and 48 BASICAs we (almost) all know, when a young Rupert Goodwins redesigned the Sinclair/Investronica ZX Spectrum 128 ROM 0 in late 1985, he kept the SPECTRUM c…
... the Sinclair/Investronica ZX Spectrum 128 ROM 0 in late 1985 ... same time put a 48 BASIC option in the start menu ... between typing SPECTRUM in 128 BASIC and selecting 48 BASIC from the start ...How to create .TAP that loads into high memory banks?I want to create a program that uses the extended 128k memory, the banks that can be switched into the 0xc000-0xffff area. For the simple stuff I've…
... that uses the extended 128k memory, the banks that can be ... .3 with the -b (add basic loader command) and voila, a ...Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…
... from within a continuously running BASIC program, but as it's ... to 48k modes while the BASIC program continues to run. Unfortunately ...More RAM for BASIC (ZXSE required)Ok, here it is: [url]https://dl.dropbox.com/u/15659782/48KBASICSE.zip[/url] Use it as an IF2 ROM with a ZX Spectrum SE. It's a version of the 80x2…
... 47.5K available for your BASIC programs. However, anything that expects ... would work on the standard 128 if anyone is interested.Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... , with this CPU, boot into BASIC and I get graphics corruption ... -not-working CPU in, and BASIC works, but JetPac doesn't ... with a 4 Out of Memory.
Just ran Ludoids Adventure ... another +2.
Multiface 128 works fine.
Components ...Query about memorySo I know this has been asked a lot and I beg your brief indulgence. I have scanned through a lot of old threads already but I'm trying to improve m…
... machine the result will be 128
If your result ... a 48K device if my basic understanding is correct.
128?
Additionally, is it ...zx spectrum 128+2a/b questionsIv just purchased a 128+2 and have only one game for it lol (Super stunt man). A few question if anyone can help.. 1)I'd like to run games through …
Iv just purchased a 128+2 and have only one ... screen says :128+ 2a...Loader...+ 3 basic.. Calculator...48 basic...Drive m:available ...TKMEM - the 128K interface for 16K SpectrumsHello all! Here in Brazil, we have made a small production of an interface, totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy…
... , totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy ... games. It was called TKMEM-128.
Below you can ... use the 128K menu, 128K basic, etc. :)
In the ... setup:
TK90X -> TKMEM-128 -> Explorer IV(an AY ...
