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Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
... ; +5 -> +6
+0 -> +5 -> +5
+0 -> +4 -> +4[/ ... After this, the exact delay for the next instruction(s ... have the same 5T delay until the contention period ... because the actual contention delay is deterministic and it depends ... -
Hacking a game MAJIKAZOHello, I am trying to put a recent game called MAJIKAZO on disk. However, the loader is written for tape only, so I have to find a way how to rewrit…
...
di
ld sp,0
call 33022
ld ... ; load address
ld de,17 ; load length
ld a ... ,0 ; header
scf
call ... -
Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... fit into 0,3->0,4 but 0,3->0,5; ... are in the range 0->27, giving X ... neatly into character squares 0,2->0,5. For each ... b,10
DELAY: halt
djnz DELAY
ld a ... with:
[code]PRINT AT 0,2; BRIGHT 1; " ": RANDOMIZE ... -
Spike: 48k onlyDoes anyone know what's going on with Spike? [URL=http://s1142.photobucket.com/user/daveyboyhughes/media/spike_zps232a1745.gif.html][IMG]http://i114…
... => Program: SPIKE - Header: Length= 17, Pause=999ms.
Block 2 ... => ------------------- - Line= 0, Length= 324, Pause=2855m
Modem problem, please help!We have an internet connection with dlspeed 10Mbit/s and ulspeed 2Mbit/s. Until now our modem has been a TP-Link TD-8610 that only gives an upload sp…
... ? The new modem only gives 0,5Mbit/s on upload and ... router configuration. Looking at page 17 of the [url=http://www ...IZX: a new standard format and driver for ZX-Spectrum icons[B]IZX[/B] is a very compact and efficient standard format to create icons for the ZX-Spectrum. You can download it from here: [LIST] [*][URL="http:…
... 55200
10 FOR g=0 TO 4
20 ... LET b=0
30 FOR n=0 TO 3
40 FOR s=0 TO 1
50 ... =b+b+POINT (s*17+7,168-g*4-n ... g
100 FOR g=0 TO 4
110 ... FOR n=0 TO 3
120 ... FOR s=0 TO 1
130 ...The Official Crap Games Competition 2013 Thread!Just to announce that the 2013 CGC is OPEN! [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/cgctitle2_zps77591934.jpg[/IMG] And for th…
... />
[code]10 DATA 0,3,7,7,7,15 ... ,225
11 DATA 0,0,224,254,255,255,224 ... 255,255,255,255,255,0,192,240,248,248, ... 0,0,0,0,0,0,129,1,0,31,127,0,0,0,255,231,7,15,255,248,0,0 ... BRIGHT 1:PAPER 7:INK 0:CLS:PRINT AT 10, ... 10;"{A}{B}{C}"
17 PRINT AT 12,15;"{D ...20-column multicolour: a half-baked ideaI was writing an email reply to one Mr Jowett about multicolour routines, and in that way that explaining something to someone else makes you think "…
... ] may have a variable delay from 0 to 3 T-states (or ...WOS API WTF?!I try to use the API. It would seem that this is an honest way to get information, coined the owner database (site). But in fact it is almost usele…
... id_wos$
Delay(3000+Random(1000))
... /> PrintN("")
Delay(3000+Random(1000))
Delay(15000+Random(5000))
wait = 0
Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... ; 1020 LET H=0: LET L=0
ld (HH ... ; 1040 LET H=0: LET L=0
ld (LL ... /> ld (ix+42),17 ; 1070 LET A=17
jp LM10_Start ... 6 alternate registers (2 bytes, 0-9999)
Ba: equ ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... "searching" phase, there's no delay loop; instead, it samples in ... edge and a load of 0 bits on the other edge ... the bits are set and 0 if they're clear; then ... code from 8600 (LD H,0) to 860F (JR NZ,8602 ... with, say, 200 instead of 0 permits very short pilots, nifty ...Redefine keys routineHow would I go about making a memory efficient redefine keys routine? I only want to define up, down, left and right and reserve key 'H' for pause.…
... /> rst 16
ld b,0
call 5d80 ; flash B ... /> rst 16
ld a,17
rst 16
ld ...Math problemI'm trying to solve/model a science problem, and I thought a simple BASIC program might help me, but I struggle to write it. Goal: Given a length of…
...
11 PRINT AT 1,0;"Cuts ";n
12 DIM ... ): REM c$()=cut markers
17 PRINT AT 1,10;"Pass ...
26 LET p=0: LET pt=0
27 PRINT AT ...
49 BORDER 4: PAUSE 0: BORDER 7: CLS
50 ...BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…
...
RETURN CODE k$-CODE "0" ' return value 1, 2 or ... a second to appear. This delay is too noticeable for a ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... Suddenly, the difference between a 0 and a 1 is looking ...
Now insert a 250T delay loop before entering the sampling ... the pulses, so a 0 is now 250T and a ... passes to detect a 0 and twelve to detect ... becomes marginal; perhaps a 0 might increase to 6 passes ...Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…
... =DEATH;717041]That's a 0.1uF polyester capacitor. Probably for ... circuit to postpone transition from 0 to 1 - it has a ... it looks like R2-C2 delay makes NMI signal short
Barn find #4I think this is some sort of backup device. Its got "007" on the motherboard and the mice have chewed the buttons. Will do a little research later in…
... =DEATH;717041]That's a 0.1uF polyester capacitor. Probably for ... used to give a slight "delay" to a signal.
Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…
33 0 128 17 0 64 1 0 27 237 176 201
...forever burned into my brain. :)Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…
[QUOTE=Sokurah;717208]33 0 128 17 0 64 1 0 27 237 176 201
...forever burned into my brain. :)[/QUOTE]
Don't do that!! I started disassembling that from memory!!Spec dev in the eighties and ninetiesWhat different ways were there of making speccy games? There is the 'worst' way which is typing in hex commands in Basic unreadable, easy to make m…
[QUOTE=Sokurah;717208]33 0 128 17 0 64 1 0 27 237 176 201 ...Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
... cosas/JL/PlusD/PlusD-v1-0.html"]http://trastero.speccy. ... /cosas/JL/PlusD/PlusD-v1-0.html[/URL]
... ROMCE=15 RAMCS =16 REG=17 PRINTWR=18 CONTROL=19 PRINTRD ...Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
... .
[U]Paging port #17(23):[/U]
- this port ... (BIN 10000000 = connect rom page 0 with write protect)
- after ... protect)
- if D7=0 and D6=0 then external memory is ... enable writing.
- OUT 23,0 - disable external memory and connect ...Mirroring UDG'sJust wondered is there a quick an easy way of mirroring UDGs (byte values)? i.e. BIN 11110000 becoming 00001111 etc.
... /> [QUOTE=jamorski;717480]
[CODE];17 bytes and 66 clock cycles ... "-g"
if "a" is 0 then keeps "g" value of ... "-g".
if "a" is 0 then keeps "g" value of ... A,
if "b" is 0 then reset "h" value of ...
