-
Newbie Spectrum developer advice ....Hi, Im new to the site and to spectrum developing - well, not quite, I wrote Spectrum programmes in Basic 30 years ago but then went off into the wo…
... you know C, is to rewrite your prog in C and compile using ... ), fit more in 48K anyway, and if you modularise your code properly ... -
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…
... Most of my coding is in C, which means that I ... numbered and indexed in a simple data structure in low RAM. ... it's stored, pages in the corret page, then ... only chunk of code which gets executed in its own page ... interrupt it gets paged in, does its job updating ... -
Bottom 4 lines of the screen fileI'm wanting to save the bottom 4 lines of the display memory (AT 20,0 to #0; AT 1,31) 23168 is the start of the attributes and its length will be 32…
... /> 23168 -> 23295[/code]
In m/code the display file layout ... b,e
loops: ld c,l
ldir
ld ... c,l
ldir
ret[/code]
and the reverse
[code ... -
Bottom 4 lines of the screen fileI'm wanting to save the bottom 4 lines of the display memory (AT 20,0 to #0; AT 1,31) 23168 is the start of the attributes and its length will be 32…
... Battle Bunny but your code is far too ... my attempt...
[CODE]
SAVESCREEN2 equ ... Attribute address for screen address in HL
; Screen print coords in C,B on entry
; ... C
ADD HL,DE
RET
[/CODE ... -
Quest for Witchcraft undeniencedI notice on the latest [url]http://www.worldofspectrum.org/whatsnew.html[/url] (02 Jan 2013) that LCD undenienced [url=http://www.worldofspectrum.org…
... nothing to do with my code. Sorry.[/QUOTE]
Only just ... as the joy/key-testing code in Quest for Witchcraft bears no ... resemblance to the code that's written by any ... way back in October 2010, predating the (c)2011 message in Quest for ... -
Keyboard TrickI know how to use the multi key in BASIC with IN you can get the keys [QUOTE]IN 254+256*(255-2^K)[/QUOTE] K is the keyboard's half row, comes from …
... :
[code]inp=(IN port)&191[/code](in ZXBC, in Sinclair BASIC this ...
[code]
10 LET C=(IN 254>200 ... IN 32766-C : IF A = 191 THEN GO TO 100
[/code ... ]
Don't forget the IN bug for ... -
Quest for Witchcraft undeniencedI notice on the latest [url]http://www.worldofspectrum.org/whatsnew.html[/url] (02 Jan 2013) that LCD undenienced [url=http://www.worldofspectrum.org…
... the joy/key-testing code in Quest for Witchcraft bears ... no resemblance to the code that's written by ... back in October 2010, predating the (c)2011 message in Quest ... it and linked the code. Maybe you are right ... not use Beeper engines in my further games anymore, ... -
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…
... ' function, using addresses which in the Spectrum ROM contains RST ... lost anyway when OUT (C),A was used. Plus ... mentioned, Lunter's Z80 has code in the 'ld e,e' ... [I]before[/I] the code for handling the 'ld e ... snapshots with ROM0 paged in would certainly not work ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... and Boriel's ZX BASIC! In practice, it means it's ... are developing a program in C using z88dk, or in compiled BASIC using ... won't waste space generating code for the decompressors you didn ... -
Setting up an IDE HDD on the +3e helpHello, Just installed a HDD in my +3e (ROM ver. 1.11). When turning on it takes a few seconds longer but then shows 2 IDE (available) as well as 1 fl…
... the ASN command
[code]
MOVE "C:" IN "SYSTEM" ASN
MOVE ... "D:" IN "GAMES-001" ASN
[/code]
[code]
MOVE "C:" OUT ASN
MOVE ... -
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 …
... tend to write pipelined code and because I started ... results of the next code change/tweak are seen ... machines as writing pure code directly for a CPU ... used to write in pure machine code when I was ... control the CPU!!! type in hex, type in C++, even use HTML ... ... -
Using FOR/NEXT like 'while'I don't know if this has already been discussed (I did search, but the search engine didn't like the word 'while'), but here's a way of using a FOR/N…
... called UNTIL). Do note that in C (and some other languages), WHILE ... ) {
do_something();
}[/CODE]
and
[CODE]do {
do_something();
Circumspect - A Spectrum Emulator for learningThis is a project that I have been playing around with for a while. It must be said, I tend to have problems getting things finished where hobbies a…
... been written in C, since it produces just-in-time compiled code by decoding ... with the approach taken in QEMU's code, and since the JIT ... documentation, and in this particular case, rearranging the code might even ... I had a bug in my code. This meant that after ...Bounding into the App Store in the morning - Spectaculator 5Happy 31st Birthday, ZX Spectrum! [IMG]https://pbs.twimg.com/media/BIfVWmpCEAAQ84S.png[/IMG] :) Jon.
The Great Escape disassemblyHi, Over the past few months I've been steadily chipping away at reverse engineering Denton Designs' classic 48K title, The Great Escape. I'm now a…
... of a reimplementation in C.
The current code is on GitHub ...pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... personally not very useful in Spectrum gaming because it ... /Articles/15307/A-algorithm-implementation-in-C[/url]
[ ... didn't need those values in the node anymore. That ... br />
Collapse | Copy Code[StructLayout(LayoutKind.Sequential, Pack=1 ...Spec +3e CF Card interface working Great but a different problem popped upHey, just wanted to say thanks to everyone that helped me get my Spectrum +3e and CF card working. I've been playing on it all last night and this a…
... />
Writing good disk partitioning code is hard enough (that's ... why I'm writing rubbish code instead!) ;)[/QUOTE]
I ... :) I'm trying to learn C++. The basic I learned from ... />
Do you write your code in MC or other? or use ...Spec +3e CF Card interface working Great but a different problem popped upHey, just wanted to say thanks to everyone that helped me get my Spectrum +3e and CF card working. I've been playing on it all last night and this a…
[QUOTE=thomas3120;698238]Do you write your code in MC or other? or use an assembler?"Chronos": how fast should it really be?I was reading [URL="http://timfollin.pwp.blueyonder.co.uk/Archive.htm"]Tim Follin's webpage[/URL] the other day and came across a curious remark abou…
... bug, I found some code in the main menu to process ... what it does:
[CODE]6900 cdbf02 call 02bfh ; call ... 31h
6905 da0069 jp c,6900h ; ignore keys < ... 35h
690f da8769 jp c,6987h ; select control (keys ...I share the Ultimate moonlighting project....I announce this here FIRST, I suspect this post might get deleted quickly, but it is right to come here first, WoS is after all the home for this kin…
... have been allowed by the (C) holders?
When's ... /> [LIST]
[*]Every line of code in the app is attributable to ...ZXDev - powerful environment for development in four languages is ready for testingXDev/ZXDev is open and free set of compilers, additional tools, libraries and design patterns for target platform ZX Spectrum 48K in different progra…
... =slenkar;702498]Need example code in the download, (that compiles ... Mod]Examples of source code to compile and run ... - with an example of code - The project Hero for ... source code into C, and then compile by the C compiler ... for DOS (such as Turbo C).
You ...BIN2BAS (load BASIC text into emulator) utilityI've nearly finished testing this. It allows a BASIC program to be loaded from a text file in any emulator which has a "load binary" option. I was wo…
... of using TXT2EMU are mentioned in the listing comments:
in expression" which it clearly ... an existing program already in memory (although BAS2TAP ... written in C and is over 3,000 lines of code ... etc. As the TXT2EMU code's loaded into the ...Trailblazer - mapped?Anyone mapped Trailblazer yet? I'd kind of like to get hold of the maps. D.
... is constructed. Each byte in the map represents a ... for level A.
[code]
06 07 06 ... 07 FF
[/code]
In this table the size ... of each level.
[code]
LEVEL AT SIZE ... 227 Wooly Jumper
C $6750 220 Terry's Test ...Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... This could mean that existing C code won't compile without modification ... library, similar idea to STL in C++) and then generate a far ... /> C++ is object oriented so it results in big and slow code. Object ... is going on in C++11 bodes well for C++ as a language ...Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... assembler function was replaced with C code, and the compiler did ... in i/o code). Both yours and sdcc's are written in C ... on the quality of your C code -- it is very good -- ... orders of magnitude in difference of performance between native C++ code (eg) ...inline z80 with sdccI cant get it to work at all: #include <string.h> char test[10]; void main(void) { strcpy(test,"testing"); _asm ld a,32 _endasm; } this produc…
... else -- like an int* -- as in *((int *)(p)) -- so the compiler ... lead to better code generated by the compiler. In C++ where a and ... is potential for substantial difference in performance and there could be ... mean something else than b++ in C++ where b can be an ...Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... applying the same to code size in this case. It must ... t have a version in z88dk either. Strings in C have to be ... all in generated code?[/QUOTE]
No, except in library code. The C compiler ... too much at the code generator level in z88dk, at least. ...Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…
... and implementation are still potentially in flux, so hand-coding ... have a version in z88dk either. Strings in C have to be ... candidate for re-coding directly in assembler.
C code to object code is simples.
...+3 find.Whilst lookin around a shop called level up in Liverpool. Managed to nab my self a +3 for ?20. Though id open it up and low and behold it was upgrad…
... ]Synopsis
[code]CAT ":"[/code]
Example
[code]CAT "C:"[/code][/indent]
[indent]Synopsis
[code]MOVE "[XDPB]:" in "[unit no.]>[Partition ... br /> [indent]Synopsis
[code]MOVE "[XDPB]:" in "[unit no.]>[Partition ...
