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16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…
... to present the column address to the RAM and ... to latch the row address. Extreme measures aren't ... appear on the lower RAM address lines. In particular, ... resistors in series with the address lines. All this means ... the SRAM latching an address or data too soon, ... -
running this game in zxspin assemblerHello all I've written this game out in the zxpin assembler. [url]http://chuntey.wordpress.com/2010/01/12/tutorial-zx-spectrum-machine-code-game-30-m…
... assemble to a specific memory address,using the 'start page' 'main ... -
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 …
... placed at a platform-specific address called the Advanced Power Down ... -
handy method for passing m/c parametersI knew that a single number or string parameter could be passed to a m/c routine with either: [b]LET a=b+USR address[/b] puts b on the calculator st…
... /> [b]LET a=b+USR address[/b]
puts b on ... ]LET a$="abc"+STR$ USR address[/b]
puts a pointer ... ]LET a=b=c+USR address[/b]
puts b & ... a=b=c=d+USR address[/b]
puts b=c ... a=b=(c=(d+USR address))[/b]
puts b & ... -
What's the POKE that removes the Start Tape message when saving?I'm sure there is one... you could POKE one of the system variables and when you SAVEd it would do it without the pause and the Start Tape message. …
... the screen at a higher address, but I'm just curious ... -
Joystick identificationHi Can anybody help me to identify the joystick as in the pictures. I actually have more than one of then that I acquired over the last two years. I …
... rather crude and not fully address decoded.
[IMG]http ... -
PCB manufacturersI am using Futurlec's services for many years now, and they deliver good quality. They're not the fastest ones or easy to get in contact with, but I …
... .
They're not the fastest ones or easy to get ... -
DiHalt 2013Hello everyone! from 6 to 7 July in Nizhny Novgorod (Russia) will be held openair demoparty "Dihalt 2013."The program includes the following competit…
... must be compiled under the address # C000 (49152), with the obligatory ... must be compiled under the address # 8000 (32768), with the obligatory ... of a code block with address download / playback and the use ... -
Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
... .
ONE
The fastest scrollers use long sequence of ... -
Contacting Facebook?This is part query, part rant. How does one go about contacting the walled garden that is Facebook without having an account? Their website - like m…
... without actually disclosing an email address or any other way of ... ve got a second email address of mine infected via ... /> Despite not verifying "their" email address (they can't 'cos it ... effect and permanently remove my address from all their databases. Signing ... -
Shifting the UDG pointer from a MC loop...I have got myself in a bit of a mess again, I am trying to write a machine code subroutine that shifts the udg pointer (23675) up 64 places then shif…
... udg pointer to a higher address later in the game. I ... -
Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... a string variable) or an address (if referencing free RAM). Any ... that if a free RAM address is a calculated value rather ...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…
... structure of the display file address is appreciated. The BASIC ... automatically calculate the correct address for the next row ... automatically calculate the correct address for the corresponding row ... = 0
STARTING ADDRESS:
H = 64 + segment*8 ...ZX Spectrum Bits n' Pieces For Sale!Hi Spec-chums! I have here for sale some ZX Spectrum items which I thought might interest you peeps in the community. It's just a few bits n' pieces …
... prices include postage to UK address by Royal Mail. Can post ...Rotronics Wafadrive v.1.80 ROM - Corrupt or purposely broken?I've been digging around the Wafadrive v1.80 ROM (from [URL="http://zxspectrum.it.omegahg.com/_RO.htm"]here[/URL]) and can't decide if the ROM is cor…
... , $00
ld hl, $0cf7 ; address the hook-code table!? WTF ...Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…
... DE, 2 ; lenght and dest address
LD BC, 0 ; file ...Merry Xmas Santa[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003136[/url] by Icon Software 1984 There is the programmer name in the Hall of Fame: P. Adam…
... the hidden message shows different address from Ubik or Icon Software ...How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …
... 60000 ; some high address
;; entry address (probably 23760) is initially ...
ld de,.dest ; target address of relocated code
ld ...BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…
... /> [B]menuscr[/B] - address of the compressed background menu ... /> [B]mainscr[/B] - address of the compressed background gameplay ... (@animctile) ' set BIFROST* tileset address
POKE 59035,254 ' ...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…
What is the fastest way of scrolling a Spectrum ...Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…
... to accept input.
Address 0x84C2 contains the three-byte ... Speedlock decrypter also uses this address once; just continue through it ...Hardware description - MULTIFACE 3[B]Hardware description - MULTIFACE 3[/B] This is description of MF3 clone, because I can't find more about original interface. Schematic and PAL ch…
... later readed from different port address (but only D3-D0).
address #0066. If detected then disable ... connected MF3 memory)
Address decoding of all ports use ...Issue 4A black paper, white borderJust had one of these through, nice yellow pcb! Everything but the ULA soldered in. On power up I get black paper, white border and some intermitten…
... the screen and reports bad address line 0 on 8000-3fff ...Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…
... already at the correct memory address!
The result was stunning ... /> ADD HL,DE ; correct attribute address
ADD IX,DE ; so ...MGT MOUSE - exist really ?I read disassembly of +D rom/ram code and from address #2249 is routine for read MGT MOUSE ports. I can't find any info about "MGT MOUSE". Exist real…
... rom/ram code and from address #2249 is routine for read ...Unskippable content in gameszzzzLodger has moved out, got married, on honeymoon, parents collected stuff, accidentally left his games behind. I'm borrowing them till he gets back, …
... 't give me a forwarding address, so he'll have to ...ZX NEWS from CZ/SKI don't know what thread to use, so I'm trying to post it here. I've been at Spectrology 2013 meeting in Wittenberg/Germany last weekend and people t…
... run as a ROM (from address #0000) and must have AY ...
