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why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... in spin but thats what i get
[code]main ... ; is it zero?
ret z ; yes - we can't go ... right edge (31)?
ret z ; yes - we can't go ... upper limit (4)?
ret z ; yes - we can go no ... the bottom (21)?
ret z ; yes - we can't go ... -
Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…
... in a straightforward manner. Recently, I have created a textured/hatched ... for a text/graphic adventure I'm working on. The algorithm ... Scanline Floodfill algorithm[/url] that I pimped a bit to support ... and color.
Unfortunately, I can't attach a ZIP ... -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... />
In the meantime I've knocked up a little ... input buffer.
I also typed in the data ... https://postimages.org/][img]https://i.postimg.cc/FHyMHyr7/console. ... .somethingpressed
inc a ; clear z flag
ret
.somethingpressed ... -
Keyboard controlsAn idea occured to me when reading thread on Ultimate. What is your favourite keyboard controls layout? For me: O=left P=right Q=up A=dow…
For 99% of Speccy games I used:
QAOPM
but for the first Speccy game I ever played (jetpac) I still use Z,X,F,T. I cannot play Jetpac without using these keys!! -
Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …
I might as well post ... Z80 Way' Z80 Cross-Assembler. F. Ross. 2000.
File: ... is met
RET Z ; Return from routine if ... not met
JR Z,Find_bit
8017 2B ... -
Yer actual Hydrofool...Basically, I'm wondering what I'm supposed to be doing in this still-marvellous wee game. From the reviews at the time, I remember that Sweevo is try…
... tips refer to a map I did a while back - give ... where Y = A-F from top to bottom, Z = 1-6 from ... -
HELP about jet set willyHello to all! After to have loaded the game, demands for the codes come me. Which are? I do not succeed to enter in the game. Thanks to all!
... ...
HEX:
JP Z,0000 CA 00 00
I've loaded Genie into Spin ... for hex mode and then F to find and enter your ... see...
86BD JP Z,87CA ; if correct jump here ... -
Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…
... write up :) That reminds me, I made this available previously....
DEC A ;
JP Z, GAME-OVER ; If Accumulator contains ... look for 8A02...
Press (F)ind and now enter 02 ... !). Keep pressing ENTER until the (F)ind option appears again and ... -
AssemblersProbably asked a question that's been asked a million times before... but... I've decided to do a bit of old Speccy machine coding again, after 20 y…
... when zoomed in.[/I]
[I]- DRawing at the ... of the screen[/I]
[I]- when saving/ ... double sized ), 9 bright, f flash, u undo ( maybe ... then compress/compile them, z zoom, g grid[/B ... screens, usiing the package, etc.[/I]
... -
Reading the keyboardDoes anyone have a code sample to read the keyboard in machine code ?
... SHIFT, Z, X, C, V
defb 'a','s','d','f','g ... /> defb 'p','o','i','u','y' ; P, O, I, U, Y
defb 34,';',130,']','[' ; P, O, I, U, Y
defb 13 ...
[/code]
I can see the code can ... -
New tzx vault update releasedThe latest .tzx vault update has just been issued. There are many hundreds of new and updated dumps for the Spectrum, C64, Vic 20 and also now the C1…
Ermm, why is it I can;t read the text file? It comes out like this :
" =??p?$?#?c?b????6? ?9?`?????vKB?r&S5A???w????????q??^????????t?zjlC?n ? 6z?R???f??????c$um??zAj?H??(?1?X??8U ?8q.??p?R?n?????(?L?_??i??l??ij]???@?(rnib0Z???{ -
Yer actual Hydrofool...Basically, I'm wondering what I'm supposed to be doing in this still-marvellous wee game. From the reviews at the time, I remember that Sweevo is try…
... tips refer to a map I did a while back - give ... where Y = A-F from top to bottom, Z = 1-6 from ... -
Key press to ASCII valueI need a bit of code that will give me an ASCII value when the key is pressed. I only really need a-z. I tried using the following code but it only s…
... , Z, X, C, V
defb 'a','s','d','f','g ... defb 'p','o','i','u','y' ; P, O, I, U, Y
I','U','Y' ; P, O, I, U, Y
I, U, Y
defb 13 ... ,21,25 ; P, O, I, U, Y
defb ... -
how do i read the keyboard in assembly? here is the code i tried writting to find out the value of a key call 28f (hex) loop: ld a,255 cp e jr z loop ld (50000),e ret notes from what i …
...
13 = R
14 = F
15 = C
16 ...
17 = K
18 = I
19 = 8
20 ...
30 = S
31 = Z
32 = SPACE
33 ... -
Advice needed - Xbox EmulatorsDoes anybody have experiance of using a speccy emulator with an Xbox ? My intention is to install Linux and then try and run an emulator (most like…
... Spectrum button 2
i.e.
[DPAD ... but it illustrates what I'm trying to describe).< ... ]= H
[Right Trigger]= F
[A]= J
... A]= T
[B]= Z
[X]= Z
[Y]=
[ ... br />
That's what I think, anyway.
... -
Key press to ASCII valueI need a bit of code that will give me an ASCII value when the key is pressed. I only really need a-z. I tried using the following code but it only s…
... /> or a
jp z,NoPress ; ignore CAPS
...
NoCaps: ld a,$f ; check on SYM SHIFT
i u y
defb ... /> [/code]
I forgot to mention that in ... -
New - BASin r13a is available for downloadHi all, Here's the latest BASin. Mostly just bugfixes, but also now has the upgraded UDG editor which can now edit multiple UDGs on one editing gri…
... in a university too (I was a teaching assistant ...
Now press undo (ctrl+z)
So you can ... br /> [/color]
and I have new ones:
F) in the program, editor ... bug 5[/b]
I think I'm close to replicating ... -
Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... E
#C419 ?UNUSED?...............#C521 F
#C421 ?UNUSED?...............#C529 G ...
#C431 LEFT BRACKET.........#C539 I
#C439 RIGHT BRACKET.......#C541 ... Y
#C4B1 8.........................#C5C1 Z
#C4B9 9
#C4C1 ... -
Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…
... s not working. :( I know I can invert the attributes ... before printing the selection window I would do this:
... 8)
LET Z(F,G)=PEEK (22528+F+(G*32))
POKE 22528+F+(G*32), Z(F,G)
NEXT ... G: NEXT F[/CODE]
But I ... -
Holidays - where are you all offI have just booked my flights for a 26 day holiday to the USA. Flying into Charlotte North Carolina, then Boone North Carolina, …
... http://maps.google.com/maps?f=q&hl=en& ... 0.881281,1.834717&z=10&iwloc=addr[/url ... sound flash ('cos I rarely go abroad), but I've already had ... of Mont Blanc).
I want to go see the ... quote]
Sounds familiar... I'll be going on a ... -
Holidays - where are you all offI have just booked my flights for a 26 day holiday to the USA. Flying into Charlotte North Carolina, then Boone North Carolina, …
... http://maps.google.com/maps?f=q&hl=en& ... =0.881281,1.834717&z=10&iwloc=addr[/url ... isn't far at all... I go there twice a week ... [/QUOTE]
Interesting, I have driven on Highway 85 ... before. I'm pretty sure we will ... -
Holidays - where are you all offI have just booked my flights for a 26 day holiday to the USA. Flying into Charlotte North Carolina, then Boone North Carolina, …
... ]http://maps.google.com/maps?f=q&hl=en& ... =0.881281,1.834717&z=10&iwloc=addr[/url ... isn't far at all... I go there twice a week ... />
Sounds familiar... I'll be going on a ...
