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ANN: Tipshop updated Friday, 30 November 2012Friday 30 November 2012 Happy 17th Birthday, WoS!! * Flavio M Matsumoto sent in a fixed POKE for Batman: The Movie. * Andrew Ryals sent in POKEs f…
... Strike Force Cobra.
* JP sent in POKEs for Encyclopaedia ... -
Compiling Lisp to Z80.I am doing some thought experiments on this. Here is an example of a Lisp program. It adds two numbers together. [code] (define (add x y) (if (= …
Improving Composite Output of 48K SpectrumI've been playing around with this Spectrum 48k I got inside a dK'tronics keyboard, because well I've already got two working other ones so why not..…
Chronos (BUGFIX)Please add the following "known errors" entry to [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000951"]Chronos[/URL]: [QUOTE]Bugfix provid…
... /> djnz 58431
jp 58556 ; skip remaining of original ... 56935: cp 2
56937: jp z, 57027 ; enable Cursor ( ... be Sinclair)
56940: jp 57068 ; enable Sinclair (should be ...Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... of hacking like Bandit, Woody, jp, Ralf...? :)Works in Fuse & SpecEmu, not ZXSpinI decided that I wanted to change the scroll routine which I was using for compiling the Trailblazer maps, as I'd just copied it out of Andrew Hewson…
... af
dec a
jp nz,SCROLL1
dec ix ... ,af'
dec a
jp nz,SCROLL0
pop iy ...Idk>le me browsing through some game's code >..... [code]61A8 F5 push af 61A9 3EFF ld a,FF 61AB D37F out (7F),a 61AD D33F ou…
... cp BA
61ED CA8962 jp z,6289
61F0 FEB8 ... (62BC),hl
6215 C39F62 jp 629F
6218 CDC362 call ... d,a
6286 C3E361 jp 61E3
6289 CDC362 call ... call EF4F
62C0 C3BE61 jp 61BE
62C3 DB3F in ...Rotronics Wafadrive v.1.80 ROM - Corrupt or purposely broken?I've been digging around the Wafadrive v1.80 ROM (from [URL="http://zxspectrum.it.omegahg.com/_RO.htm"]here[/URL]) and can't decide if the ROM is cor…
... , e
pop de
jp (hl)
;; hook-code ... /> l_0d63: ld hl, ($5ce3)
jp (hl)
;
[/CODE]
Strider II (and others) + 3 disk versionsHello everyone, I've been working on converting some games to be able to load them from the +3 floppy. I started with single load games but now Im i…
... ID
cp 6
jp nc, exit ;if block "B ... /> ld (levid+1),a
jp openfile
exit ... 6 ;compare level ID
jp nc, exit ;exit if > ...Cobra (improved again BUGFIX)This is an improved BUGFIX for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000996"]Cobra[/URL], that works better than the fix curre…
... org $9490 ; 38032
jp $aef0 ; 195 240 174 < ... ; 254 7
jp z,$9566 ; 202 102 149 ...
jp $956a ; 195 106 149 ... Bugfix provided by zxbruno, jp, and Einar Saukas:
...F. Itagaki full nameAs per his website: [url]http://itagaki.eek.jp/index.php[/url] Itagaki Fumihiko.
As per his website:
[url]http://itagaki.eek.jp/index.php[/url]
Itagaki Fumihiko.How to write self-relocating code using Pasmo?With z80asm, I can write code like this: [CODE] org 0 ; a total lie, but makes the reloc sums work .dest: equ …
... /> ldir ; perform the relocation
jp .dest ; jump to the relocated ... pads the gap between the JP and the start of the ...Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…
... the right length for a JP to a routine implementing the ... requires 0xf7fe in BC
jp 0x84c5 ; resume where we left ... BC,0xF7FE at 0x84C2 into JP 0xFCB1: the three bytes to ...JSW2 - Game Loader DifferencesThere are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it …
There are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it incorporates a built in cheat mode. Feedback on this point is appreciated. To quote the readme:
Assembly - Loops bigger than 255Hi, It looks like it's a bit difficult to make loops with more than 255 cycles on Z80 machine code, since the 16-bit decrements (DEC) do not alter a…
Super Wonder Boy in Monster Land (BUGFIX)Please add the following "known errors" description for [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005053"]Super Wonder Boy in Monster L…
... ]
Bugfix patch provided by jp, Ralf, Metalbrain, and Bandit.[/QUOTE ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... A
CP 0
JP NZ,writeagain
#endasm
CP 0
JP NZ,writeagain
org ...SkoolKit 3.6SkoolKit 3.6 has been released. In case you are unaware, SkoolKit is a set of command line utilities (written in Python) for disassembling Spectrum …
... the operands of CALL and JP instructions)
[*]move a cigar ...that "listing variables during runtime" thingWell, I did eventually finish this, but with my meds playing up I don't have much time each day that I can spend at the computer, so it's taken rathe…
... , commands such as CALL & JP using absolute addresses within the ...A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…
... ,128
call dos_set1346
jp nc,0
; open ... ,fichero
call dos_open
jp nc,0
; repeat ... /> call dos_read ; read block
jp nc,0
; finsi ... that ret changed to a jp ...).
- I would like to ...Assembly code auto optimiserFor my Finders Keepers Plus project I'm considering writing an Assembly code auto optimiser. Way back when I wrote the original FK I considered optim…
...
[code]
jp SomeSub
[/code]
jp instructions and turn them ... 16 bit vectors directly into jp instructions :)
... /> ; ##OPT jp->jr, callret->jp,
jp function1
Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... h
dec h
jp z, l_mulu_16_8x8
l0_mulu_24_16x8 ...z80 less than and greater thanI am writing a keyboard routine where the pressed key code number is held in A. I only want to action the number key presses 1 to 9 (codes 49-57) so …
... is clear? Would it be jp p,loop ?
The ... A so I do jp c,loop
jp c,loop
So the complete code (if jp p,loop is right) would ... ]
cp a,49
jp p,loop
cp a ... ,57
jp c,loop
key_checking ; each ...Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
... : LD B, 176
65174: JP NC, 65163
< ... /> 65351: CALL 65447
65354: JP NC, 0
65357: LD ... LD B, 176
65421: JP NC, 65410
65424: LD ... 65432: CP 2
65434: JP NC, 0
65437: LD ... LD (HL), B
65533: JP PE, 60016[/code]Venturespeak Helplooking at the code from ZX Computing, October, November & December 1986. How do I make the code do more then 3 letters say 5. and could it be made …
... CP 002
60033 D232EB JP NC,TIMEUP
60036 3A085C ... CALL PROMPT
60195 C378EA JP WAIT
60198 3E16 ... RST #10
60280 C360EB JP HERE
60283 3A9BEB ...Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... instructions to throw interrupts
jp never_end
;Draw ... af
dec a
jp nz,draw_char_frame_loop
;Bottom ... hl ;retrieve data address
jp print_char_hl_de ;draw character
Happy birthday jp!Hope you've had a great day! :)
Hope you've had a great day! :)
