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ANN: EsxDos 0.73 released (third party - not mine)Papaya Dezign have finally released their firmware/OS for the DivIDE interface. Go get it from [url]http://www.esxdos.org/files/esxdos073.zip[/url]…
... file. TAP attaching functions are available to external programs.
... commands and external programs. Functions available on rst $08: open ... code.
* Possibility of getting absolute LBA sector and ... .command has 7.5K of RAM available and may call any ... -
The Making Of Manic Miner"Matthew Smith talks us through every level of his classic platformer Sat at the very desk where it was written, Matthew Smith watches Miner Willy l…
... to run at 25fps (Attack of the Mutant Telephones, Amoebatron ... /> 6000: level data
6E03: last byte of level data
8000 ... EDIT3: Here's an overview of some of the features:
of level, assuming fixed width ... -
Minor Update to Gasman's Midi2BEEPDon't know whether this is worthy an announcement, but for those of you who enjoyed Gasman's midi2BEEP utility, a new variant has been made called mi…
... announcement, but for those of you who enjoyed Gasman's ... spaces at the start of every non-label/non- ... you can save one whole byte of RAM, and 4 Ts, by ... for the sake of it, but think of all the lovely ... things you could do with that extra byte ... -
Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…
... limitations for both apps.
Of course the plugin then needs ... games are included in chunks of conditional assembly so you ... to maximise the amount of RAM available for the game. Of course, if you ... to select from a series of predefined routines for things ... -
Platform Game Designer 2Right, with Telly Heroes out of the way, I've decided to have a second attempt at this. I've ditched the old PGD2 source, and started again with the…
... are included in chunks of conditional assembly so you ... pointer to each block of data which is adjusted ... maximise the amount of RAM available for the game. Of course, if ... do instead. One of the things I was ... select from a series of predefined routines for things ... -
Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... , (l_5c53) ; PROG - address of the start of the BASIC program area ... ; HL now points at the last byte of the BASIC program area
byte of loaded header
ld a ... (if there are any, first byte after program area otherwise).
Override AUTOLINE start?Hi there, Is there a poke that prevents a BASIC program from auto running, when it was previously saved with the LINE command? Cheers, Steve
... hl, (E_LINE) ; E_LINE - address of the start of the editing area,
last byte of the BASIC program area
byte of loaded header
ld a ... (if there are any, first byte after program area otherwise).
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 …
... ;569392]Imagine dividing usable 32KB of Speccys RAM (why do they call ... /> Because there are 49152 bytes of RAM? Even if you're not ... , there are still 42240 bytes of RAM available. I really don't see ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... l,0 ; sprite byte to left of first byte of sprite row is ... this code for each horizontal byte of sprite definition
; ... start of the table and the lower byte can be the byte ... above also relies on the last byte of sprite data being carried forward ...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…
... , but is there an archive of programs I can try for ... /> I shall pop an archive of demo programs up for you ...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…
... ]I shall pop an archive of demo programs up for you ...St Dragon (Kixx & MAX Compilation)Hi folks, This title has been doing my nut in for years, and I wondered if anyone knew how to make a working TZX. [url]http://dl.dropbox.com/u/15363…
... days ago, about the last byte of each "special" block having ... , on the lower right of the loading screen, with ... visible that this "missing" last bit is actually "almost" ... there: the 1st half of it is correct and the ... I found with the last block of side A (the ...rotating HL left through CarryI've tried this several ways, and it works for a while, then a particular value has a bit set in an inconvenient place and it all goes to pot. Eg: "…
... does trash DE and one byte of RAM. ;)[/QUOTE]
Good work ... ), thus the largest but fastest of the brilliant solutions posted here :)rotating HL left through CarryI've tried this several ways, and it works for a while, then a particular value has a bit set in an inconvenient place and it all goes to pot. Eg: "…
... does trash DE and one byte of RAM. ;)[/QUOTE]
BTW you ...Outrun Europa in colourSwainy suggested that he'd like to try his luck with Outrun Europa colorful graphics and see if they can be improved. Let's give him the chance :) A…
... , while keeping the spirit of the machine. The machine ... over (and is now available as an FPGA replacement for ... with the same amount of RAM available as on a BBC Master ... that needs an all-RAM mode (such as the ... that a reasonable number of people have access to). ...Odd versions of the Multiface One.I've been looking through the adverts for the Multiface One and it's clear that there were a number of versions available. Note the earliest advert …
... they require some sort of licence for use of the ROM on ... feel about having every last bit of code available on a webpage. If ... me more about this side of things, I'd be grateful ...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…
... set to the address of the highest functioning byte of RAM found. To view ... are also possible when faulty RAM is encountered.
If ... with one or more of the upper RAM ICs (IC15-IC22), or ... possibly with some of the upper ...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…
... set to the address of the highest functioning byte of RAM found. To view ... are also possible when faulty RAM is encountered.
If ... with one or more of the upper RAM ICs (IC15-IC22), or ... possibly with some of the upper ...Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…
... addresses, with the addition of Bit 4 of $200C being Side Select ... 2).
Your list of trap addresses (mostly) makes sense ... to be:
Fetch first byte of instruction
Page ROM
last byte of CALL $0074!
...Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…
... $0022 trap. It's the last byte of CALL $0074![/QUOTE]
< ... that it affects the [I]last[/I] byte of an instruction, i.e ... have to jump to that last byte of the instruction directly, as though ... were the first byte of an instruction. The byte at this address ...Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …
... in the data.
- The last byte of the data block is always ... a lot more frequent than byte repetitions, it may be better ... output" (instead of another bit for every "copy next byte to output ... ") and fewer bits to indicate "repeat a sequence of ...Where do you stick the stack?...OK, so I've got a fair chunk of ASM code assembled from 24000 mark. The stack shouldn't get very big, just a few PUSHes and POPs of the main regis…
... think that wastes the top byte of RAM. If I've understood the ... decremented first, then the 1st byte stored, decremented again and the ... 2nd byte stored. So to make use of the very top byte as ...Where do you stick the stack?...OK, so I've got a fair chunk of ASM code assembled from 24000 mark. The stack shouldn't get very big, just a few PUSHes and POPs of the main regis…
... think that wastes the top byte of RAM. If I've understood the ... decremented first, then the 1st byte stored, decremented again and the ... 2nd byte stored. So to make use of the very top byte as ... 'm an idiot. Not all of my routines are border only ...Scrolling by 2 pixelsWhat is the fastest way of scrolling a Spectrum screen line by 2 pixels left or right? When thinking about it I've come to this simple solution: [C…
...
And the width of my buffer line doesn't ... [/CODE]
A bit of unlooped code but I can ... bit of 1st byte in each line goes to right bit of last byte of line ... not a problem as this byte is not displayed as it ...Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…
... 716167]The 128K version of Renegade doesn't have ... is only available with the original ROM of the 48K ... Reserves part of memory bank 7 to the RAM disk, which ... while making the whole of RAM available to ROM 1 without ... due to overwriting parts of bank 7 reserved to ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... for forward decompression, the last byte of the packed file must be ... least 2 bytes above the last byte of the unpacked file. For ... , and the lowest address byte of the compressed file must be ... 2 below the lowest address byte of the uncompressed file.[/quote] ...New hardware for Spectrum from ShaosI have some ideas for new ZX-peripherals and quickly designed a prototyping board for experiments: [URL=http://nedocon.com/store/speccy/][IMG]http:/…
... to overwrite the first byte (possibly more) of ROM.
< ...
After a lot of searching in all the wrong ... realised that the first byte of ROM was getting ... was the first or last byte of rom the ROM that ... got overwritten. Last would make more sense ...
