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Schematic of MULTIFACE 128Exist schematic of Multiface 128 ? I find on WOS only pictures of PCB layers. I mix both layers for possibility make schematic from picture, but it's…
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A have complette schematic of MULTIFACE 128 created from PCB ... on bit D7 state of active VIDEORAM from internal ... is now transparent = copy of original A15 adress line. External ... external memory.
Adressation of ports:
#BF (dec 191) = ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... barring overlaps off the edge of the colour area. (And ... can erase up to 3 of them). There are three ... it has a massive table of addresses to speed up the ... drawing, then wastes loads of time on scanning the entire ... to copy the idea of erasing sprites after the ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... overlaps off the edge of the colour area.[/QUOTE]
table of addresses to speed up ... drawing, then wastes loads of time on scanning the ... Right now the largest version of BIFROST* is about 8K, ... to copy the idea of erasing sprites after the ... -
BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... slightly slower stack-friendly version of the sprite routine), allowing 12 ... blocks (two whole rows of the hopper) to be redrawn ... yes, it has a massive table of screen addresses to achieve that ... -
Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…
A lookup table of the address of the first byte ... high-byte of address of the start of the table, double the ... the lower byte of the table address, then read ... br /> The other advantage of tables is you can change ... after the actual screen table that divert drawing ... -
Cricket: Duckworth/Lewis CalculatorIdeal for any one-day cricket match which uses the Duckworth/Lewis method to calculate the target score if there is an interruption to play. The alg…
... using it requires inputting numbers of overs bowled when there ... it uses the latest version of the Professional Duckworth/Lewis method ... fully scrollable over-by-over table of par scores (provided you ... for the old standard version of the calculation which do ... -
Random number from a rangeHow can I generate in assembly a random number from a range, let's say 0-21 or 0-57? There are generators which make it 0-255. By using bit masks I…
... could be to make a table of random numbers beforehand (if they ... say you could reset the table with new values, populated with ... like:
For a table of 255 values -
Assembly game programming on ZX how-to?Hi. I'm planning to build and release new software for the Speccy but I'm pretty lame as to handle its hardware despite a good mastery of Z80 assembl…
... ZXF or am I thinking of something else?[/QUOTE]
I ... at the Table of Contents for a couple of random issues of ZXF and ... -
Assembly game programming on ZX how-to?Hi. I'm planning to build and release new software for the Speccy but I'm pretty lame as to handle its hardware despite a good mastery of Z80 assembl…
... the basic operations - changing values of registers, writing to memory, etc ... learn that this part of code checks table of enemy statuses, statuses may ... , you only see changed values of some numbers. Eventually you can ... -
SFN to LFN BAT?Hi to all I wanted to make this question for a while. I have 11000+ ZXS software zip files, which have the correct game name in front, but then when…
... same data! It's a table of values that (thanks to [URL ... 've learnt consists of the addresses of the start of each pixel row ... /> So that's yet another of my childhood Spectrum mysteries laid ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... can use incomplete adressation of ports and work with not ... to AY or paging ports. But how many ZX ... or full 8 bit adressation of ula port.
ports with incorrect adress then ... ZX games using bad joystick ports (all known games are ... -
ZX-Paintbrush 2.2.9.5Dear ZX-Paintbrush friends, I want to present you some preview pictures of my latest progresses. Well, there are some bug-fixes to do, but it's work…
... to change the full-color table of the standard Spectrum colors that ... you all a good end of the year! -
Red DwarfA Red Dwarf video game - good or bad idea? (given its recent resurgence in popularity in the UK) My ideas: [b]Plots[/b] - An interquel which bridg…
... .
There's a table of addresses to each room's ... data with width and height of map settings predefined. So moving ... dword in the table, moving down adds the height of the map ... to the address to get from the table ... -
Red DwarfA Red Dwarf video game - good or bad idea? (given its recent resurgence in popularity in the UK) My ideas: [b]Plots[/b] - An interquel which bridg…
... 679645]There's a table of addresses to each room's ... with width and height of map settings predefined. So ... in the table, moving down adds the height of the map ... to the address to get from the table ... />
Using both of these together I reckon you ... -
+3e filebrowserHello everyone, Im writing a game/program loader for the +3e (with an IDE interface, but it can work with floppies too). The program lets you choose…
... />
basically it has a table of games. I have a util ... which dumps game lists of my +3 disk menus (i ... nvr gonna get rich off of it!
happy days ... -
Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…
... nice ideas but, really, all of them just make a simple ... displacement and look up a table of addresses which have to be ... done once, at the start of the BASIC program, not at ... -
Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…
... displacement and look up a table of addresses which have to be ... done once, at the start of the BASIC program, not at ... the start of the individual routines.[/QUOTE]
The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... documentation that we have, A13 of the 27128 is controlled by ... bit 3 of the control port (#1F). ... ...
Our understanding of the behaviour of ports #7B and #BB is ... close to correct) from reading of the disassembly. I really wonder ...Use of saving arrays ?I was wondering did much software (cannot think of any of the top of my head) make use of the facilities to save and load arrays ? :) I had to check…
[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0025316"]REVERSAO[/URL] is a simple BASIC game where the goal is to beat the minimum number of moves to solve each puzzle.
The table of "minimum moves" is saved/loaded using a char array.Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... MOU" program from drive 1 of the SD card.
At ... mouse also use incomplete adressation of ports. All modern emulators/zx clones ... of low 8bit adress,full 8bit data value on all mouse ports ... and three mouse buttons.
My first prototypes of ...Assembler v Machine CodeHi. I've been looking at a lot of the code examples in the Development section and can see that Assembler is the way to go. However, I was wondering …
I have a self-made printed out (dot matrix) table of alphabeticaly sorted Z80 opcodes and the decimal values, and I poked them in BASIC to enter Assembly subroutines. Never ever used a dedicated Assembler.
Nowdays I use Inline Assembler from ZXBC.Kindle version of 'The ZX Spectrum on Your PC'Any Kindle users out there interested in owning a copy of my book, 'The ZX Spectrum on Your PC', might be interested in knowing I've finally gotten a…
... table of contents in there. Currently there's a "list of links"-style table of ...Kindle version of 'The ZX Spectrum on Your PC'Any Kindle users out there interested in owning a copy of my book, 'The ZX Spectrum on Your PC', might be interested in knowing I've finally gotten a…
... table of contents in there. Currently there's a "list of links"-style table of ... Kindle before that had a table of contents and I followed amazon ...Kindle version of 'The ZX Spectrum on Your PC'Any Kindle users out there interested in owning a copy of my book, 'The ZX Spectrum on Your PC', might be interested in knowing I've finally gotten a…
... Kindle before that had a table of contents and I followed amazon ...Designing an icon-driven adventure: looking for adviceHi fellas, after the release of Funky Fungus, I am currently contemplating the possibility of designing an icon-driven adventure with location graph…
... suggest using a set of data tables defining the attributes ... of the main constituents of an adventure: Characters ... length records with an index table of pointers for quick retrieval. ... was written. So instead of many explicit IF...THENs ...SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... ]That's why most of people design their projects ... ready made holes for ethernet ports and Spectrum through connectors. ... later intend to sell millions of, or where price doesn ... which requires a lot of time to do a ... has an awful lot of ports plus a DIL switch ...Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…
... a crude detection of either of the two address ... ://www.worldofspectrum.org/faq/reference/ports.htm[/url]
ports.
But ... full decoding for the joystick ports - it only looks ... going low in the sense of ports $07 and $0F, ...
