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Line DemoI was looking in the source code of another game (that Akalabeth game), with lots of line drawings. The difference was that they don't use the PL…
... low as possible for your routine, but I also noticed that ... often hangs if it is in BASIC, as the editor can't ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... , but for a simple routine like this we'll do ... you can understand what my routine does, and maybe fiddle ... of one of my routines in BASIC would be:
... addresses in HL and DE around and run the routine again ... second version of the routine is for. -
Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…
... at a good speed just in BASIC, as the original source ... file is just in BASIC. I also want to ... t even a handy ROM routine, as CL_LINE clears from ... speed up the graphics in BASIC by reducing the number ... of steps in the PLOT/DRAW calculations; ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... explore small areas that BASIC keeps like printer buffer, ... some applications that completely overwrite BASIC/ROM system variables, to ... like for example, have copy routine in RAM, copy 32K (2 ... incomplete) Bank and decompress/copy routine in ROM.
... -
So where is the random number in the Speccy ?So I am messing around with ZX Spectrum Assembler and I want a random number. I looked up previous posts and one of the links said that random number…
... said that random numbers are in the ROM at 14000 ?[/ ... the INT routine in the BASIC interpreter.
There is a routine in the ...
It's worth bearing in mind that the Spectrum ROM ... - it's just a BASIC interpreter that people have reverse ... -
How to get more than 21 UDG's in BASIC?So with graphics mode under the G cursor how many UDG's can you do from BASIC is it 21? It's all POKE 65368 and above and it's sequential ABCD.... an…
... contains the small machine code routine to copy the system font ... follows after the machine code routine. I want it to initialise ... rest of the game written in BASIC follows.
[code]
5 ... ,60:CLS
rest of BASIC listing etc..
[/code]
A BEEP program I want to make in Basic. Helpful remarks gratefully receivedI want to explore the possibilities of the BEEP command. So I need to be able to try different combos of pitch/duration and sequences of same. I'm tr…
... was trying to learn BASIC back in the day I'd ... effect that I could incorporate in my program, without actually ... what it did. So in that spirit, here's ... code routine to play the sound is stored at 32768 in ... than trying to do it in BASIC.
Anyway I ...A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…
... simultaneously.
In BASIC the IN command can be used to ... way too slow. IN's more useful in BASIC for joystick control, ... referencing a particular bit 'n' in BASIC:
[code]
[b ... />
The ROM KEY_SCAN routine is at $028E. Here's ...how to load machine codeI'm reading Jon Caldwell's how to write Spectrum games but can't enter the code! Here's an example:_ LD BC, (score) Call 6683 I tried putting…
... enter commands like that from BASIC but you sort of can ... discussion/53389/where-does-the-basic-program-sit-48k-spectrum-memory ... the machine code routine by
RANDOMIZE USR 61000 in BASIC
If ... I did using only the routine in the thread.
Open ...1987-2017Here we are, with our tradional thread about games released thirty years ago, where we can contemplate how bad they have aged, how bad they [i]alread…
... worldofspectrum.org/pub/sinclair/screens/in-game/a/AliensUSVersion.gif[/ ... in basic, which has either been compiled or has machine code routine ... running along with it. Try loading it in to ... time of release guess) a basic knowledge of German (Oooo ...Akalabeth gamei found now that someone ported an ansi-basic game (coded in 1979?) to msx-basic - what about a zx-spectrum basic version of it? ;) https://plus.goo…
... ]
The BASIC display loop uses DATA line 791 in this instance ... the end of the BASIC program, the BASIC loop took 12.66 ... ; structures use the same display routine, displaying the structures would not ... I'll rewrite the selection routine in assembler."ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... - reciprocal key;
= a routine will disable taking the reciprocal ... ATN respectively
= a routine disables calculating ASN and ACS ... use the Spectrum's functions in BASIC, I've just made ... big". The routine does at least work in theory - divide ...DivIDE allram mode help neededHi guys, are there any DIVIDE wizards out there that can explain how i page in the allram and add a rom file to it i sometimes need to load spect…
... mode with 16kB ram paging in zx rom area + selectable ... zx ram to DIVIDE allram. In basic you can easy switch between ... rom image in mapram mode is possible (also from basic) use easy ... , else during LDIR jump interrupt routine to divide rom...
ld ...Screenshots from my old BASIC gamesI have written several dozens of games in 90's. They haven't remained, so I show only screenshots 'for history'. Some screenshots are real, but all…
I love Sinclair BASIC, slow speed and all. Don' ... Spanish competition for best games in BASIC. Not sure if they're ... it also showed how good BASIC games can be.
This ... such as developing each sub-routine, each sprite, the game map ...Can I name a subroutine and then call it by name?No thats not really exactly the problem. I wrote 4 lines of Basic that draws an 8x8 square and then told it to check x,y and subtract 4 from x or y t…
... can get a horizontal pixel scroll in BASIC with a randomly generated line ... forms of each element held in an alternative character set.What if...Just out of Friday's curiosity -- was there a ZX Spectrum emulator for Sinclair QL? Could there be one? Would it make a difference if there was one i…
... play. Imagine doing a jump in Manic Miner... you know you ... doing some HLE emulation but in ZX Spectrum it would be ... HLE with every routine in ROM (that would make BASIC programs faster), but ...im looking for a horizontal scroll routinehi, im looking for a horizontal scroll routine. i read somewhere that you can do it with at 'to' statement, somewhere in a print routine. althoug…
... , although I use an assembler routine to draw the graphic once ... 'd originally done it all in BASIC, but I wanted it to ... . The outside scenery is done in BASIC, as the objects are static ... drawn with the first assembler routine.
Static data tables ...z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …
... back to BASIC which then in turn uses the LOAD ROM routine with ... ]F$[/b] using the ROM routine from BASIC.
Now ... this kind of string manipulation in ASM / BASIC before on here AA ... would need to know where in BASIC such variables would be stored ...I am soo glad I owned a SpeccyJust passing the time here, and decided (after seeing some CPC screenshots of Shadow Of The Beast in a YS scan) to compare a few CPC games with their…
... developers. Look at the scrolling in Cobra for example - that still ... ]
For something from back in the day, Mission Genocide is ... to something like the Cobra scroll routine.How to improve my program using oversized numbersI'd like my dice program to print out the number four times bigger than normal if possible. Anyone know how to do this? Or I could write a sub rou…
... 8 ATTR rows in the screen = 8 bytes in the character.
In the example in last post there is ... pointer (23681, 23682) by 32 in each loop.
... CODE 165 and above, the scroll effect is amazing:
... fast yet it's in BASIC.Reading Disks via ASMI'm hoping to port my Amstrad game to the spectrum (See the link in my sig for info) I will be targeting the 128 and +3 - the game will not work on …
... the system by altering the BASIC
variable CHADD to ... they are unusable except through basic. This is one example where ... disk access in basic. When you call a machine code routine with "USR ... that you can goto in a short basic program that will perform ...z88dk terminalsto set up a terminal a bunch of numbers are needed: m4_zx_01_output_fzx(_window_1, 0x2330, 0, 0, 1, 14, 1, 19, 0, _ff_ao_Prefect, 14, 0, 14, 8, 1…
... asm.m4[/b] which in turn is included into ... of [b]zx_01_output_fzx_mine[/b] in file [b]zx_01_output_fzx_mine.asm[/ ... is used in the scroller. The print_word_wrapped routine has been ... subclassing works. A specialized scroll routine may have better performance. ...Komando 2 incompatible with the +2A models, anyone could supply a poke or a loader to make it work?http://www.worldofspectrum.org/infoseekid.cgi?id=0002734 Is any way to make it work in the +2A models with a loader or poke? Thanks!
... region of memory directly, from BASIC, because memory that needs to ... routine.
Or you could make it return back to BASIC ... after decompression, do the poke in BASIC, and then ...Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... line by putting the PLOT routine in a loop. Not sure if ... faster than using DRAW from basic. How do I find this ...Almost (In-) Complete List of esxDOS DOT-CommandsI´ve created a List of esxDOS .DOT-Commands (="esxDOS-Systemcommands") which can be runned from within esxDOS. Here you can found actual Version V…
... I know then rom files in ZIP archive need one fix ... . This poke fix bug in scroll routine (original scroll rewrite part of zx font ...Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... mouse routine in Z80. I knocked up the following demo in BASIC so ... not bad speed wise for BASIC and even handles the ... ------------------------------------------
110 REM ZX BASIC Mouse Cursor Demo
120 ... NY>21=Cursor in bottom half of screen< ...where can i get assembly language routines to play around with?preferably in .asm format or text with comments? ive googled it but there is very little
... it a different version of basic?
[/quote]
Those ... . I recall there were some scroll libraries in there.
You can ... own inline asm within Boriel Basic. Here is a tutorial : ... by coding a bit in this modern Basic, then decompile to see ...Help with adding graphicsHi, After like 20 years or so I started playing again with Spectrum stuff, especially programming. I tried to dig into machine code, but apart f…
... to code a little game in BASIC. Here it is:
... Most of it is just BASIC (at some point it ... do that in machine code. It's just a "routine" redirecting ... sets and then returning to BASIC.
I also added ... more complex one) completely in machine code. It's ...Floppy drive fixI know this might be a long shot but does anyone know or does anyone fix floppy drives I ha e an nous discovery and the controller on the floppy driv…
... a sector read/write routine which is loaded in RAM together with ... )
The system provides instructions in BASIC for working on these tables ... /> Line 20 resets the table in RAM, line 22 then 'points ... just skips a few positions in the table which hold lesser ...i need a sideways scrolling program written in basicso like ghosts and goblins it scrolls along with the player. i had help with this before in making a tunnel game but this time i need it to be a able…
... limitations, you could create something in BASIC with a 1 character scrolling ... scrollers have been done well in BASIC before and it shouldn't ... hard to adapt one to scroll UDG backgrounds, perhaps even with ... even have the bottom layer scroll half as fast as the ...
