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How to stop a flickering character erasure?I'm trying to figure out how to build a moving sprite. Eventually it will be made up of several UDG's. However its early days yet so I'm experimentin…
... /> 5 FOR x = 0 to 20 STEP 1
10 PRINT AT 0, x; "A ... -
'Mike's' moon lander in SpecBAShttps://youtu.be/1mjwLD6juB8 As modified and turned into a video by Dunny. I put my name in single quotes because it really is only thanks to Dunn…
... graphic m,0,0,0:
x=scrw/2, y=0, acc=0, thrust=0:
0,x,y,16,32
50 print move x ... 10+(int(rnd*1.5)*4);"^"
55 print at 0,0;"acc=";acc;" "'" thrust ... thrust then
acc=acc-0.1
else
acc=acc ... -
Built a ZX Spectrum that works, but can't get the upper RAM to work?Like the title says I finished my Spectrum 3B board, and it boots, but it doesn't see the upper 32k of RAM. When it boots, the lower 16k works f…
... after the swap, PRINT PEEK 23733 returns 128 ... memory test:
1 CLEAR 24999
... br /> 3 PRINT AT 0,0;a: POKE a,0: LET d= ... /> 6 PRINT “done”: STOP
8 PRINT “error at “;a;” ... “;d
9 RETURN
It ended at ... -
Kempston Interface To Work On 128K +2a ( HELP )Hi need some Advise I'am trying to play games on a 128K +2a Using a (Kempston Interface +3) but it will not work (WHY) , do you need to setup or so…
Plug your Kempston interface into +3, switch the computer on, and type:
10 print at 0,0;in 31;" ":go to 10
and Run it.
If you move stick or press fire, the values on screen should change. If it does so the interface works well. -
Spectrum problemHi I've just been trying to resurrect my 48k spectrum. I'm having some problems loading some of my games, but if it does completely load, it crashe…
... - the bug with the double print apart, that means it was ... than 15-20 mins to at least print something one way or ... something like :
25 PRINT AT 0,0;i
(I think ... really slow it down, but at least you'll be able ... -
Text compressionI'm sure I remember seeing a short machine code routine published in a (very random) multi-machine listings magazine way back in the mists of time, w…
... columns (though with four pixels at the end left over), so ... a statement such as PRINT AT 0,35; to print in the final column ... -
Text compressionI'm sure I remember seeing a short machine code routine published in a (very random) multi-machine listings magazine way back in the mists of time, w…
... to use statements such as PRINT AT 0,41; for the furthest right ... -
Long Lost ListingsWay back in the day when I still had those three issues of Sinclair Programs (which got lost in the Great House Move of three years ago DAMNDAMNDAMN)…
... . It's not *quite* the PRINT AT 0,41; routine I'm looking ... -
Programming Sound EffectsHi guys, Have decided, probably due in some way to my midlife crisis, to tart up and re-release (or even just re-lease) the old 48K Speccy games I w…
... just two levels - 0 and 1 pushing the diaphragm to ... it sits at an "average" position between 0 and 1. If you ... hold the BEEP bit at 0 or 1 for a longish period ... record the voltage every 1/8kHz = 0.125 ms. This ... take a full range (0 to 1 volt, for argument' ... -
128 ramdisk loaderanyone got a program which will save the contents of ramdisk to tape in one go, rather than saving each file seperately then loading them and save!in…
...
40 IF X = 0 THEN PRINT AT 0,0;"Tape error - rewind tape": GOTO ... -
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 …
... be as follows:
0 = B
1 = H
2 = Y ... /> 34 = P
35 = 0
36 = 1
37 = Q
IN for KempstonHi all A few years ago I wrote a Spectrum program that used graphics on screen to indicate what position a Joystick was in. I need the read IN instru…
... :
[code]
10 PRINT AT 0,0;IN 31;" ": GO TO 10 ... bits until CTRL is pressed at which point IN 31 returns ... 0 again. Surely this isn't ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... this:
[CODE]
PRINT AT 0,0;"$";INT c,':
[/CODE]
[CODE]
PRINT "$";INT c:
[/CODE]Microdrive Not Present.... the little fibber!Hi chaps. I've just dug out my IF1 and microdrive to search from some long lost stuff on cartridge. I cannot find the ribbon cable for the life of m…
... /> If you try OUT 239,0 (with no cartridge in it ... full RESET) is[CODE]10 PRINT AT 0,0;IN 239;:GOTO 10[/CODE ... write protect microswitch and bit 0 of the value displayed should ...Microdrive Not Present.... the little fibber!Hi chaps. I've just dug out my IF1 and microdrive to search from some long lost stuff on cartridge. I cannot find the ribbon cable for the life of m…
... ]If you try OUT 239,0 (with no cartridge in it ... full RESET) is[CODE]10 PRINT AT 0,0;IN 239;:GOTO 10[/CODE ... write protect microswitch and bit 0 of the value displayed should ...Faces Of ZX Death!!I've just finished my first Speccy video, [url=http://www.youtube.com/watch?v=8IvZKu5ZlpM][I]Faces Of ZX Death[/I][/url] (YouTube link)... A special …
Some quick questions: what are the games displayed at:
0.49
1.31
2.59
They look interesting and I do not know them.Faces Of ZX Death!!I've just finished my first Speccy video, [url=http://www.youtube.com/watch?v=8IvZKu5ZlpM][I]Faces Of ZX Death[/I][/url] (YouTube link)... A special …
... the games displayed at:
0.49
1.31
2 ... (in order of appearance):
1. Harrier Attack
2. Garfield ...Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …
... />
[code]
10 PRINT AT 0,0;: LOAD ""SCREEN$: GO TO 10 ...Defenda (Interstella) makes resetDefenda from Interstella makes a reset if I take No. 1 Kempston joystick. My jockstick interface is from Ram Electronics (Fleet) Ltd. Joystick is a C…
... each direction.
10 PRINT AT 0,0; IN 31; " "
20 GOTO ... to this.
10 PRINT AT 0,0; IN 223; " "
20 GOTO ...Timex 2048 documentsHi, I got Timex 2048, seems to work, but no colors on screen :cry:. Neither TV out, nor Composite works. ULA fault ? It seems TC 2048 uses MC 1377 a…
... state of EAR ?
10 Print at 0,0, IN 254
20 goto ... is 191/255, so EAR = 0 in idle, but my Timex ...Timex 2048 documentsHi, I got Timex 2048, seems to work, but no colors on screen :cry:. Neither TV out, nor Composite works. ULA fault ? It seems TC 2048 uses MC 1377 a…
... state of EAR ?
10 Print at 0,0, IN 254
20 goto ... is 191/255, so EAR = 0 in idle, but my Timex ...Timex 2048 documentsHi, I got Timex 2048, seems to work, but no colors on screen :cry:. Neither TV out, nor Composite works. ULA fault ? It seems TC 2048 uses MC 1377 a…
... state of EAR ?
10 Print at 0,0, IN 254
20 goto ... is 191/255, so EAR = 0 in idle, but my Timex ...Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …
New Game: Climbing ManA few years ago I created a solo boardgame that simulated in a way, climbing a rock wall. It was roughly based on the rock climbing sections of the c…
... /> 20 PRINT AT 0,0;" ";a
21 IF a=173 THEN PRINT AT 0,0;"up-left ... THEN PRINT AT 0,0;"up-right"
24 IF a=183 THEN PRINT AT 0,0;"right ... THEN PRINT AT 0,0;"down-right"
26 IF a=187 THEN PRINT
ellvis
August 2010
Announcements
New Game: Climbing ManA few years ago I created a solo boardgame that simulated in a way, climbing a rock wall. It was roughly based on the rock climbing sections of the c…
... /> 20 PRINT AT 0,0;" ";a
21 IF a=173 THEN PRINT AT 0,0;"up-left ... THEN PRINT AT 0,0;"up-right"
24 IF a=183 THEN PRINT AT 0,0;"right ... THEN PRINT AT 0,0;"down-right"
26 IF a=187 THEN PRINT
jonathan
August 2010
Announcements
Simultaneous key presses in BASICIs there a way to check for 2 simultaneous key presses in BASIC? I use if inkey$="z" then goto... but that only lets me check for 1 key press at a…
... AND IN 57342=189 THEN PRINT "q and o"
10 PRINT AT 0,0; IN 254-191; " "
20 ...Help! Reverse engineering a Spectrum game[deleted]
... ""CODE : RANDOMIZE USR 30000: INK 0: PAPER 0: PRINT AT 0,0;: LOAD ""CODE : RANDOMIZE USR ... block, and then start disassembling at 30000 to see what's ... code block, and start disassembling at 24104.changing extended RAM pages in SpinIs it possible to edit the data in 128k extended RAM pages in Spin? I've tried both the debugger tool and the pokes tool and, although they let me ma…
... /> [code]
org ram4:0 ; start assembling at the first byte of ... /> ; RAM page 4 located at 0
defb 1,2,3,4,5 ... run with
; RAM page 1 located at 16384
; (20000 is ...
