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SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... wouldn't let you touch, peek and poke would... Id thus ... my point is this: When memory increased, programming quality decreased (initially ... media support too, with supporting data files, but also find ... able to read your disks, and USB drives/storage for data in ... -
Whole upper memory lostHi! I own a rubber key Spectrum with 48K RAM. Suddenly it lost it's whole upper memory. All diagnostic programs says that it's 16K model with workin…
... /> [QUOTE=lillaolle64;487614]I have read somewhere that if you put ... that and gave PRINT PEEK 23732+256*PEEK 23733 and it printed ... mistaken and the data pins of your faulty memory chip are not ... '1' into the data bus while your working memory chip wants to ... -
What if the Government backed Sir CliveHere is a question I have always wondered about... What if the Government had backed Sir Clive back in the Eighties... That is, placed his computers …
... I've been doing some data preservation on the Beeb ( ... you can actually allocate memory at run-time for ... and for things like memory buffers. BBC BASIC even ... more powerful than POKE and PEEK.
I ... study in economical design (read Chris's ULA book, ... -
A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…
... have the time to currently peek at the sources, but I ... database file entirely in its memory. For the Spectrum it starts ... you can somehow extract the data from a regular GAC game ... my interpreter, it will read the data and use it accordingly. In ... -
New SpecBAS available - v0.710Been a while, but I've just uploaded the latest build of SpecBAS. This one now supports tilemaps (with rotation and scaling) and added OVER mode (XO…
[QUOTE=Dunny;579193]I shall pop an archive of demo programs up for you. Here you go:
[url]https://sites.google.com/site/pauldunn/demos.zip[/url]
Unpack that into your Specbas folder.[/QUOTE]
Thanks mate. Although now ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... moment the ROM's memory test code worked on ... wrong.
b. Value 2 read. (DEC(HL) instruction.) No ... />
In step c data bus line D7 was high ... was interfering with the data bus and suspecting that ... 16K Spectrum. POKE and PEEK in upper RAM suggested more ... -
.tapein load crashes if no CLEAR performed first(!)Hi Guys, Can anyone explain the following as it has be stumped: I came across an unexpected crash today when loading in a 16K block of code at 8000…
... +8: READ p: POKE a,p: NEXT a:
DATA 237,115 ... ,201
30 PRINT PEEK 23730+256*PEEK 23731, USR here
memory check will set this to ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
Interesting
[CODE] 2 dec = 00000010 in binary
34 dec = 00100010 in binary
162 dec = 10100010 in binary
where the data bits are
MSD -> 76543210 -
New presentation for ZX Spectrum: "New Wave"DOWNLOAD: [url]http://pouet.net/prod.php?which=61133[/url] [img]http://pouet.net/screenshots/61133.png[/img] Enjoy.
... ",NOT PI: READ a$: RANDOMIZE USR VAL "15363+256*(PEEK 15363195)": REM ... ": GO TO PI
5 DATA "initial","tzoom","tride","pila","msh1 ... $ 190+"23635+256*"+CHR$ 190+"PEEK 23636+5"
[/CODE]
memory saving techniques. -
display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... /10/02/zx-spectrum-screen-memory/"]http://flockofspectrums.wordpress.com/2010 ... /> 1020 READ b(n)
1030 NEXT n
1040 DATA 128 ... /10/02/zx-spectrum-screen-memory/
1107 REM Implements coded ... index
1190 LET byte=peek(adr): REM get current byte ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... usr-$
defw x80_fread ; read-in
defw x80_fneg ... absolute
defw x80_fpeek ; peek
defw x80_fin ; ... /> defw x80_fstk ; stack data
defw x80_fdjnz ; ... defw x80_fst ; store in memory
defw x80_fgt ; ... -
IF EXIST?In MS-DOS scripting, there is an IF EXIST command that lets you check wether a file exists in disk or not. There are any way to check it out from BA…
... entered
with the memory configured as illustrated below ( ... at the bottom of memory in the address range ... top of
memory is page 0 and ... br /> the top of memory, the stack held somewhere ... the bottom of
memory (000h...3FFFh). This configuration ... -
FZX Driver for z88dkAn fzx library for z88dk can be downloaded [URL="https://drive.google.com/file/d/0B6XhJJ33xpOWM2hWNjAxMVkxaEk/edit?usp=sharing"]here[/URL]. The libr…
... variable
I would just PEEK the system variable but it ... variable on top of any memory location. Below I will map ... you are reading or writing data that could be updated in ... do something like "PEEK 23672+256*PEEK 23673" to read FRAMES but this ... -
Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…
... values:
[code]
10 READ a
20 FORMAT "t ... 8;PEEK 23747
40 GO TO 10
50 DATA 19200 ... to write log data to a block of memory then do a ... memory snapshot save. It is ... -
JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... to memory address nn.
JP (HL) ,I assumed would read the ... contents of memory address HL and jump ... HL,jumptable
JP (HL) ; read/peek the contents of HL and ... to the memory location HL
Looking at data sheets ... -
Peeking the contents on screen? How?You will have to forgive me for growing up on the C64, but I know I can peek the location of a character (1024 is top left from memory) and the peek …
... is faster than the equivalent PEEK. I was just demonstrating what ... it has to read the 8 bytes of pixel data from the ... graphic data. ATTR is just fetching a byte from the screen memory. -
Peeking the contents on screen? How?You will have to forgive me for growing up on the C64, but I know I can peek the location of a character (1024 is top left from memory) and the peek …
... (the ULA) stepping in to read from it can slow down ... that, you can POKE and PEEK memory without corrupting anything. At startup ... use any memory address above that to POKE and PEEK whatever data you ... -
IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... ;51296"]
I understand PEEK and POKE, but have never ...
Basically:
PRINT PEEK 1234
will make ... is on the data bus will be read (and then printed ... and what's considered memory, but really, memory is just another ... -
ZX81 Character SetHello, hope I don't offend anyone with my request. I've put together a program on my Amstrad that redefines a condensed text and displays it appropri…
... to store the font data in memory using other means, the ... the data into a REM statement and read the contents using PEEK, you ... wasteful of memory, since you end up storing the data twice - ... font will quickly exhaust available memory.
ZX81 BASIC ... -
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…
... way it works is at memory address 64000 there is ... you want to POKE or PEEK data directly to the buffered ... an ATTR() read, the address to POKE or PEEK is [b ... will POKE those bytes into memory. So lines 9130 and 9140 ... 's also space in memory for a second bank of ... -
Another 48k Speccy acting as a 16K model.Hi all, I originally was going to post asking for help to fix the new addition to my family a very nice condition Issue 2 sold on ebay as a 16K model…
... and PEEK can access.
If there is no working memory ... attempting to read non-existent memory, the value may be the data byte ... that the ULA read ... from the screen memory.
AY musicThis is a format I'm proposing for an AY music player. If anyone can see any problems or anywhere it can be improved please say so. An AY music form…
... muscial data, provide flexability in creation, and be easy to read both ... will easily be able to read it back in and shift ... at any memory location. Thus all the information regarding the data stream ...Solution for overwritten stack in 48k SNA filesIt has been known for quite some time now that the 48k SNA file format has one serious fault, which is described in the file formats section on the W…
... register overwrites 2 bytes of data (or program code) in RAM ... 49179 bytes of registers and memory, pops the program counter from ... " SNA file format should just read first 49179 bytes (the size ... , so it would fail to read longer SNA files correctly - I ...ANNOUNCE: SPECSAISIE 1.2 released!SPECSAISIE is a Java system which enables one to perform surgery on SNA and TAP files, and various other gubbins (some functions relate to Spectrum e…
... files on the tape into memory.
+ SNAtoTAP: Convert ... Spectrum files onto tape from memory.
- TAPtoBinary: Convert a ... correct the checksums.
+ Peek: Print the byte-value(s ... memory.
- Saisie: Generate a BASIC program for typing data ...ANNOUNCE: SPECSAISIE 1.2 released!SPECSAISIE is a Java system which enables one to perform surgery on SNA and TAP files, and various other gubbins (some functions relate to Spectrum e…
... files on the tape into memory.
+ SNAtoTAP: Convert ... Spectrum files onto tape from memory.
- TAPtoBinary: Convert a ... correct the checksums.
+ Peek: Print the byte-value(s ... memory.
- Saisie: Generate a BASIC program for typing data ...[NEW]: Spectaculator 4.0Hi everyone, Finally managed to finish it... enjoy! --- [NEW]: Spectaculator 4.0 Spectaculator is a Sinclair ZX Spectrum emulator for PCs runnin…
... />
o Brand new memory contention system and cycle-accurate ... br /> o Load programs and data from external audio sources such ... br /> o Changed the contended memory model for the 128k/+2 ... Kempston bits are now also read and written correctly.
...128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …
... />
Port 32765 controls the memory paging. Bits 0-2 determine ... /> This means I need to read the value at port 32765 ... figure out is how to read the current value into A ...POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…
... probably, PEEK) once which would display the total amount of memory available ...[NEW]: Spectaculator 6.0Spectaculator is a Sinclair ZX Spectrum emulator for PCs running Windows 95, 98, ME, NT 4, 2000 and XP. Spectaculator emulates the 16K/48K/128K/+2/+…
...
(.fdi and .udi are read-only).
- Autoboot facility ...
(little-endian) in main memory.
- Displays can be ... raw machine code and data from either main memory or a
