-
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... /> 2 | 11 | 010 | 1
3 | 111 | 011 | 0
4 | 1111 | 00100 | 1
5 ... file starts with 0 or 1. Assuming it starts with 0, the rest of ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... joystick either as kempston/atari or as Sinclair, I assumed we ... , mapped on keyboard keys 1,2,3,4 and 5.
3. SJS2, mapped on ... keyboard keys 6,7,8,9 and 0 ... .
-Conectors on +2A/+3 are Amstrad ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... 2. Amstrad[/QUOTE]By this, Antoniovillena means two different pin-outs (or ... mapped on keyboard keys 1,2,3,4 and 5.
3. SJS2, mapped on ... keyboard keys 6,7,8,9 and 0 ... br /> Sinclair Interface 2 / Amstrad +2 & +3 SJS interfaces are read ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... br /> ld hl,0
ld de,0
; ... the RCS+ZX7 decompressor (or any other version) afterwards ... LD" instruction takes another 3 bytes, the total size ... /> Source address = z+1 and z+2 (replaces zero after "LD ... = z+4 and z+5 (replaces zero after "LD ... -
SpeedLockI'm aware that there are seven (7) - yes, SEVEN!! - different iterations of the SpeedLock loader. I've loaded games from all 7 types, one by one, and…
... able to tell a Speedlock 1 or 2 game by the noise it ... when loading in the first (or sometimes second) bit of basic ... the rem statement in line 0 "Protected by SPEEDLOCK" with loads ... Heels)
Speedlock 3, 4 and 5 must've been some ... -
Keyboard TrickI know how to use the multi key in BASIC with IN you can get the keys [QUOTE]IN 254+256*(255-2^K)[/QUOTE] K is the keyboard's half row, comes from …
... the key state (1=pressed; 0=unpressed). It is ... /> .loop2: LD E, 5 ; Loop 5 bits per half-row
[code]
; +0 +1 +2 +3 +4
; +0 CS Z X C ... /> ; +15 1 2 3 4 5
; +20 0 9 8 7 6 ... a=USR 49152:REM or wherever the code is ... -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
...
1060 DATA 0,0,1,25,63,254,188,0: DATA 96,32 ... FOR j=0 TO 15: INK 1: PRINT AT j,0;CHR$ 143 ... xo=3: LET yo=3: LET d=0: LET hp=8: LET w=1 ... =3: LET ny=5: LET nxo=3: LET nyo=5: LET nd=0: LET nhp=2 ... : LET nw=0 ... -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... offset trick
1010 BORDER 0: PAPER 0: INK 6: CLS
1060 DATA 0,0,1,25,63,254,188,0: DATA 96,32 ... x=3: LET y=3: LET xo=3: LET yo=3: LET d=0: LET ... nx=3: LET ny=5: LET nxo=3: LET nyo=5: LET nd=0: LET ... PRINT AT ny,nx; INK 5+2*(nhp -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... /> 1020 IF (PEEK 65369)>0 THEN GO SUB 9000
5+2*(nhp -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... /> 1020 IF (PEEK 65369)>0 THEN GO SUB 9000
5+2*(nhp -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... /> 1020 IF (PEEK 65369)>0 THEN GO SUB 9900
5+2*(nhp -
Unravelling the Spectrum Floating Point Number formatHi Guys, In my head I pretty much understand how the Spectrum's 5 byte FP number format works. The first byte is the signed exponent and the follow…
... a little program which assigns 0.5/0.25/0.125 to variables h ... (ie. with line 9005 disabled or enabled). The printed values are ... gt;LET z=0: LET h=0.5: LET i=0.25: LET j ... LET h=1+h-1: LET i=2+i-2: LET j=3+j-3
3;: LET z=0:
FOR b=a+1 TO a+5: PRINT ... -
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
... , which gives me room for 5 different types of npc.
1060 IF (PEEK 65369)>0 THEN GO SUB 9900
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
- have begun work on a simple map, which is initialised and displayed in the bottom right-hand corner by the cumbersome line 9220
[IMG]http://i1136.photobucket.com/albums/n498/bigjon1684/ZXSporgBASICv0pt024Screenshot.jpg[/IMG]
[ ...Best game ever?Not sure the best way to do this, thinking top 10s with a sliding scale of 10 points awarded to the game you vote 'best' down to 1 point for your 10t…
... Battlecars" (mentioned on page 3 here), so this thread ... which I stop working 2 years ago (completed 45 ... combination...) with its resolution of 0.5% in marks :)
... yours (best) favorite games?", or am I wrong?
1 pt goes to) Lords ...48k + Spectrum Issue 4S Display IssueHi all! Brand new user here. Growing up I had a zx spectrum for a little bit, and recently I have bought a working 48k + Spectrum (Issue 4). I was…
... sent (either it didnt, or you got 3 copies of it lol ... ]
1 0.3 0.28 open
2 0.3 0.27 open
3 0.39 0.36 open ...
4 0.16 0 open
5 1.655 0.8 1 ...pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... between nodes i and j; or 0 if there is no direct ... /> int i;
for (i = 1; iRocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…
... , 27128 and not 27C64 or 27C128.
3. The LED (D7 ... interface initialise ( 0&4, 1&5, 2&6, 3&8 ). With ... a problem with certain manufacturers or drive models. This is in ... if you need more information or if you get stuck somehow ...Outrun Europa in colour - Level 1 ready !Instead of bumping these old threads: [url]http://www.worldofspectrum.org/forums/showthread.php?t=10754&highlight=outrun+europa[/url] [url]http://w…
... 5 4 3 2 1 0
bits 1 0 ? part of block nr, values 0-3 make 0 ... , 256, 512 or 768 ... added to lower byte
bit 2 ... but may use own paper or take paper from the background ...How to convert a .txt file (ASCII/PC) into a Tasword file?Short version: [B]How can I convert a .txt file (PC) into a Tasword file (ZX Spectrum)?[/B] Longer version: {Maybe I should first re-introduce mysel…
... steps involved:
1. Download UnrealSpeccy (on the WoS ... a program, for instance Tasword 2.tzx. Type LOAD"".
or characters will miss out. Combinations that seem to work are 2/5,1/5,0/5,2 ... /4,1/4 and 2/3.
...pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... you can mark it with "5" instead (since it will take ... [1], STACK[2] and STACK[3]. They will initially store positions that are 0, 1, 2, or 3 ... steps away. In practice, it means STACK[0] will ...How to convert a .txt file (ASCII/PC) into a Tasword file?Short version: [B]How can I convert a .txt file (PC) into a Tasword file (ZX Spectrum)?[/B] Longer version: {Maybe I should first re-introduce mysel…
... for 'Hold' is 2, for 'Release' is 5. You can choose lower ... , or characters will miss out. Combinations that seem to work are 2/5,1/5,0/5,2 ... /4,1/4 and 2/3.[/QUOTE]
You ...Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... />
3.5.2.1 Enable mouse: CAT 0;"[m]e[n]"
3.5.2.2 Disable ... mouse: CAT 0;"[m]d[i]"
3.5.2.3 Mouse ... are not at the beginning or the end of the composite ...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…
... ) lose about 2-3 tacts per byte ... even less, about 1-1.5 tacts per byte.
or 5 or 4 or 3 or 2 or 1 or 0 or 0. Hence, on average you should expect
(6+5+4+3+2+1+…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…
... or 5 or 4 or 3 or 2 or 1 or 0 or 0. Hence, on average you should expect
(6+5+4+3+2+1+0+0 ... )/8=2 ...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…
... page says
pc:5,sp-1:3,sp-2:3
Of course, we ... /> +2 -> +5 -> +7
+1 -> +5 -> +6
+0 -> +5 -> +5 ... until the contention period finishes, or until you execute a different ...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:…
... 41 bytes:
[CODE] 5 LET end=55200
10 ... FOR g=0 TO 4
20 LET ... =0
30 FOR n=0 TO 3
40 FOR s=0 TO 1 ... FOR n=0 TO 3
120 FOR s=0 TO 1
130 ...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…
... 1: ";C$'
"Number 2: ";E$
102 PRINT STR$ USR (LMUL10+3 ... =exponent byte
or a
jr nz ...
ld bc,5
add hl, ... 1 (1 byte, 0-9)
I2: equ WORKSP+41 ;Carry flag#2 (1 byte, 0 ...
