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Load! Screen$ questionI've got a basic program listing in BASIN which among other things recalls a screen via Load! (I've Save!'ed a screen into memory before hand). How d…
... Load! (I've Save!'ed a screen into memory before hand). How ... do I save the program ... listing and save the screen(s) in memory to ... -
Multiface 3 questionsI did have one once although it was actually faulty from new (about 1990, probably new old stock) :( was a 50/50 chance it would crash when you press…
... not reliable either and my memory has faded since then.
How does multiface save a snapshot ? , will it save a standard file ... -
Sinclair ZX81 ZXPand Interfaces Now AvailableWe are pleased to announce the launch of the ZXpand Interface for the Sinclair ZX81 Home Computer. The ZXpand interface is a brand new interface for…
... facilities:
• SD Memory Card reader - for instant loading ...
• 32K of configurable RAM memory, which can then be set ... and save programs, produce a catalogue of files on the memory ... -directories are supported on the memory card.
• ... -
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
Paddy -
Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…
... commands:
[CODE]CLEAR 32767 : SAVE *"m";1;"rom" CODE 0 ... of the first 16K of memory, where the shadow ROM resides ... -
Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…
... . I save its position as a 2 byte word in memory location ... -
Drawing a "window"...Hi Folks, I want to display a blank window over an existing screen. It then draws a border around it but that is not the point of my question. Ini…
... achieve the performance using less memory? Without machine code! ;)
170 REM SAVE "STRIPES.D" DATA l$()
memory (i.e. the above definition ... -
automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …
... program to find whereabouts in memory it was, as there ... , so I needed to save the current value. I ... wanted to save it within the bounds ... 's no command to save SP to a variable ...
PUT_SP: ld (STACKP),sp ;save stack pointer
ld hl ... -
SAM emulators and save states ...Hi Is there now, or has there even been, a SAM emulator that can save/ load states? Moose
Hi
Is there now, or has there even been, a SAM emulator that can save/ load states?
Moose -
Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... /> ;2 - DISPLAY ADDRESS AND MEMORY CONTENTS IF DATA CHANGES
MEMORY
CALL PRINT_DHEX ;PRINT ... ;LOAD A WITH THE LOWER MEMORY
CALL PRINT_DHEX ;PRINT ... I2C controller (to save to I2C memory for removable storage)
Paging memoryI've been thinking about a possibility of paging blocks of memory to and from disk. Imagine dividing usable 32KB of Speccys RAM (why do they call it …
... possibility of paging blocks of memory to and from disk. Imagine ... it 48K, btw?) into 1KB memory blocks.
Each ... OS would attach bitmask of memory blocks that this process uses ... OS would compare process memory bitmask to the memory track from OS ...Display half a screenWorking in 128 Basic and saving screens to memory via - SAVE! "image" SCREEN$ . 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.SP1 and memoryWhile developing my program, I've run into memory related issues and haven't (yet) run into any advice over how SP1 uses memory. The examples all sb…
... advice over how SP1 uses memory.
The examples ... some statically defined stuff in memory at some point above ... 50000.
What memory addresses should I avoid when ... br />
Generally, how much memory should I allocate with sbrk ...load/save gamesSorry Newbie here so this is probably in the totally wrong place. Can i save games to my pc from an emulator and (assuming the answer is yes) is the…
... place.
Can i save games to my pc from ...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…
... assigns when inside a package (SAVE "sys:myfile" for example).
Added SAVE BANK DATA - which will save the bank's memory without the ...What memory address?If you poke 96 and 236 what would the memory address be? I've forgot how to work it out!!! :-?
If you poke 96 and 236 what would the memory address be?
I've forgot how to work it out!!! :-?Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…
... =0&turns=0&memory=0&language=0& ... =0&turns=0&memory=0&language=0& ... is easy to find, the save routine or mastering code is ...MGT image save as DSK imageWhich emulator can read MGT images and save it as DSK image? Micky
Which emulator can read MGT images and save it as DSK image?
MickyRepairing 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 …
... and C54 are installed (will memory corruption happen?!) and the service ... power supply lines and to save any that were still in ...Why are the same size memory cards different sizes?I've heard before that two memory cards or USB sticks can have the same official capacity, but be different capacities in reality, and I'm not talkin…
... 've heard before that two memory cards or USB sticks can ... the case here) that different memory cards (and USB sticks, though ... , GB, etc) is lower than memory of the supposedly equivalent size ...JSpeccy v0.89 Christmas 2011 EditionHi, After seven months of hard work, tonight I've released a new JSpeccy version as my humble Christmas gift for all the community. As my webpage i…
... files.
[*]Save/Load a snapshot to/from PC memory
[*]Hibernate ... (RLE / Z-RLE)
[*]Load/Save CSW blocks within TZX tapes ... (now, can save in DRB blocks at 44 ... ). This allows, with a simple memory inspection, to see what areas ...SpecBAS 0.718 Now AvailableHi Folks! After an appreciable delay, the latest and (dare I say it?) greatest SpecBAS update is now available. We're moving into modern times with …
... string variables/arrays saved with SAVE DATA will retain their structure ... [n [DATA]] - lists all memory banks. If n is specified ... added, a hexdump of the memory is displayed.
LIST ... defaultvalue]) creates a structure in memory. These can be assigned to ...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 ... /> (C) 2012 Timmy
Save As: demo1.c
// Memory to define the background.
How to safely maximise available memoryHi All, I'm toying with an idea that will require I have as much memory available as possible. I'm a little embarrassed I have to ask this tbh. As…
... require I have as much memory available as possible. I'm ...Loading the display with data from memoryTrying to load part of the screen(4k's worth) with data from memory location 53000, I've written this routine, but it doesnt work... [I]ld b,4000 ld…
... 's worth) with data from memory location 53000, I've written ...Spectrum 48K - upper memory MIAI have recently acquired a ZX Spectrum which, according to the sticker on the bottom, should be a 48K model. It's an Issue 3 board, with upper memory…
... Issue 3 board, with upper memory chips (8xTI4532) and supporting logic ... does not see the extended memory. PRINT PEEK 23732 + PEEK 23733 ...Memory move routine?Hi Folks, I have been searching for the thread that covers the memory move routine that uses a$=b$ via DEF FN. I thought it was written by Battle B…
... the thread that covers the memory move routine that uses a ...Poking a string to memory...I'm looking to poke a string of characters including colour control codes to memory, I'm currently doing it by hand: 16,2,19,1,22,1,1,144 That equa…
... including colour control codes to memory, I'm currently doing it ...ZX81 Internal Memory UpgradeAnyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get t…
Anyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get them?)
