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CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…
[QUOTE=Battle Bunny;761531]There's a couple ... STACKA
JP CRGRE1
; Use slow ROM routine circle routine ... -
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
[QUOTE=Battle Bunny;762941]It's hardly surprising ... from the top). If you use the same scale for both ... axes ( ie. use 16,128 ) it will be ... position.[/QUOTE]
[B]!!Battle Bunny takes the glory!![/B] :-D ... -
understanding machine codeHi Quick question. Am not really sure if it fits development forum as its not really development per se its more a learners question about developm…
... debugger?
As [b]Battle Bunny[/b] said, bit 0 of ... not change; but if you use a ZX Spectrum monitor, and ... -
problems using GOG.comI've been watching a bunch of HOMM III clips on YouTube recently and decided I fancied playing it again. I've still got my original game & patch disk…
[QUOTE=Battle Bunny;767063]I see that there' ... 't know if you could use [url=http://mightandmagic.wikia.com ... -
Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
[QUOTE=Battle Bunny;772314]Bit operations can be ... to some machine code to use the Z80 bitwise operators using ... -
Dock's ZX Maze gameI'm hoping to finish a simple maze game in ZX Spectrum BASIC this week, as part of the Ludumdare Retro challenge. I used to dabble in speccy basic on…
[QUOTE=Battle Bunny;774142]Here's some extracts ... -
Basic program malfunctionHello. Please does anyone know why this basic program 10 LET x=0 20 LET x=x+0.1 30 print x 40 if x<>1 then goto 20 50 STOP does not properly work o…
[QUOTE=Battle Bunny;776002]What I think was ... /> It's not necessary to use ABS, as if the loop ... -
Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
[QUOTE=Battle Bunny;780387]The boxes could be ... />
Agreed and I already use this "trick" in MRT. I ... -
Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
[QUOTE=Battle Bunny;781244]I've replaced the ... hot in my study to use my computer.
Many ... -
BayonettaI don't have any of the consoles on which Bayonetta runs, so I've never played it, just watched gameplay clips on YouTube. Is this game as difficult …
[QUOTE=Battle Bunny;791397][B]16 chapters![/B] ... either as you'll only use a handful of them. -
Making noises with the AYHow do you go about making noises from the AY chip in machine code? I'm wanting to make a pulsating humming noise that increases in volume as you ge…
... 8,16 ; channel 1, use envelope settings
DEFB 9 ... ,16 ; channel 2, use envelope settings
DEFB 10 ... ,16 ; channel 3, use envelope settings
DEFB 12 ... Your Computer pages that Battle Bunny linked in this post ... -
Help getting SAMdisk running on WinXP please.Hello speccy-chums. I was wondering if you clever folks out there could help me with my poor PC skills:lol:. Basically I want to run SAMdisk but it n…
Thank you Battle Bunny for your help. I did ... commands. Also as Battle Bunny mentioned you must use quote marks for the ... -
64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
[QUOTE=Battle Bunny;805766]
[*]The calls from ' ... I want to avoid flickering, use backgrounds, or overlapping sprites.
use 4 8x8 sprites - Anyways, this ... using plain assembler, and just use IX to point to a ... -
64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
[QUOTE=Battle Bunny;806881]What's the point ... . Thus my suggestion to simply use NIRVANA and update screen directly ... -
64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
Great job, Battle Bunny.
I'm sorry ... it's rather simple to use. -
Game completion challenge?<span style="font-style: normal;">Ok, this is probably a really daft idea, but as </span><i>games club</i> seems to be suspended for now I thoug…
... everyone admits defeat, we could use POKEs, but maybe ones that ... -
Multiplying. Again.Is there a faster way of hl=a*32 than doing add hl,hl 6 times?<div><br></div><div>I get the feeling that working with 8 bit registers for most of it …
... and here's one that's 13T faster than that one ...
\m/ Looks like this is the one so far. Nice use of the XOR masking trick and just 2T short of the table version. -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... /> 1) As pointed out by Battle Bunny the X and Y axis ... , I only realised this when Battle Bunny pointed this out! I have ... 'm understanding correctly though the use of rst 16 after it ... -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... /> 1) As pointed out by Battle Bunny the X and Y axis ... , I only realised this when Battle Bunny pointed this out! I have ... 'm understanding correctly though the use of rst 16 after it ... -
BrexitThere's nothing like a nice healty Brexit to start the day!
[quote="Battle Bunny;865183"]One thing which isn' ... become another state within the USE, implementing laws & collecting taxes ... -
BrexitThere's nothing like a nice healty Brexit to start the day!
[quote="1024MAK;865186"][quote="Battle Bunny;865183"]One thing which isn' ... become another state within the USE, implementing laws & collecting taxes ... -
Arrays in BASICHi so I'm making this crappy game and I wanna store the screen positions of some UDGs in in a 50x2 array cause I have 50 characters. So I made the ar…
... ;883539"]Thanks for the info, Battle Bunny. Lines like "PRINT #2 OR ... , although you'd want to use an INT operator around the ... depending on the representation you use) but only needs one byte ... bytes, while characters would only use 100. -
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…
... the score the computer will use my own font rather than ... I've sorted the pointer Battle Bunny is talking about since 255 ... -
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…
Hi Battle Bunny,
You're right ... correctly told you can't use it as a Mage. However ... -
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…
Hi Battle Bunny.
I've been ... crash, I'd tried to use the Magic Amulet (to move ... -
Trying to enter a line from a book fails for some reasonI am reading through the book "[i]Spectrum Machine Language for the Absolute Beginner edited William Tang[/i]". I have got to the section where I nee…
[quote="Battle Bunny;904067"]The last character between ... Sinclair ZX Spectrum[/b] to use as a better way of ...
