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The Konix Liberator 10 Function Interface.In the 'What We Got' thread JP asked if I could upload some pictures of my Konix Liberator. Well here they are, well some of them. The rest are on my…
... the 'What We Got' thread JP asked if I could upload ... -
Tips on optimizing some newbie assembly routinesI'm starting to learn some assembly language. The best way to learn is to actually code something you are going to use, so I'm creating a very simple…
... /> cp 255
jp z, _b1aok
... inc c
jp _b1a
... br /> inc c
jp _b1b
._b1bok
Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…
... of concept
;
; mailto: jp@drumfu.com
;
org ... /> call unpack ; unpack game
jp 24832 ; and start
ret ...Midi player that sounds "8-bit"While searching for a way to convert MIDI files to something that the AY can playback, I found an interesting MIDI player. Any MIDI tune played with …
... /> [url]http://www.geocities.co.jp/SiliconValley-SanJose/8700/P/GsorigE ...Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... loop program (ORG 16384; DI; JP 16385) loaded at the screen ...Quicky tour of England at the weekend.[url]http://www.bedfordtoday.co.uk/todays-choice/Bikers-hit-the-road-for.5736584.jp[/url] :)
[url]http://www.bedfordtoday.co.uk/todays-choice/Bikers-hit-the-road-for.5736584.jp[/url]
:)Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... GAMEOVER change line 55 to 'jp PRINCIPALLOOP'.
Assemble, save, and ...
jr nz, wait
jp principalloop
gameover
pop ...Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…
... ?p=402514&postcount=65"]jp's recent post in Spin ...T 1Is this the beggining of the end, do we need to stop them. The future is not set we only have the fate we make. [URL="http://www.cyberdyne.jp/englis…
Is this the beggining of the end, do we need to stop them. The future is not set we only have the fate we make.
[URL="http://www.cyberdyne.jp/english/robotsuithal/move.html"]http://www.cyberdyne.jp/english/robotsuithal/move.html[/URL]Keyboard Issues When Setting Border ColourWelcome to the next in my series of inane 'Z80 on the Spectrum' questions! ;) Here's a minimal snippet of code for polling the keyboard until any ke…
... /> CPL
OR A
JP Z,NOKEY
RET ... /> CPL
OR A
JP Z,NOKEY
RET ...What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…
... 8252 ; print our string
jp loop ; repeat until screen is ...tricks to simplify codingWhen i started with programming in assembler i had very simple approach to do things. Just shifting bytes around, doing simple tests and so... Later …
address 23760 etc.Hi all, Where could I find Spectrum 48 addresses, what's in 23760 for instance ? Thanks for advance ! -jp
Hi all,
Where could I find Spectrum 48 addresses, what's in 23760 for instance ?
Thanks for advance !
-jpHappy Burfday jp!Happy Burfday! Drink Beer (your avatar implies you may already be ;)) Have a Gudden!
Happy Burfday!
Drink Beer (your avatar implies you may already be ;))
Have a Gudden!Some TR-DOS technical questionsHi forum, I sincerelly hope this was the right section of yours to ask this kind of stuff in. (else return facepalm;) Anyway, here's a couple of que…
Delete keyIs it the case that this: [CODE]ld bc, 0xEEFE in a, (c) rrca jp nc, delete_key_pressed[/CODE] will jump if Caps-shift is pressed [B]or[/B] i…
... a, (c)
rrca
jp nc, delete_key_pressed[/CODE]
will ...A tidy loader for minigamesThe minigame competition doesn't permit the use of separate loaders like [code]10 LOAD "": RAND USR 32768[/code] The loader must be included in the b…
... INK exx *
218 PAPER jp c, NN ** *
219 FLASH ...A question about M1 cyclesI'm writing an interrupt routine that, after the usual register pushes, will jump to a location of my choice with a [b]JP (IY)[/b] instruction. If I…
+3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…
... /> CALL $1f54 ;BREAK-KEY
JP C,$12cf ;MAIN-3 - jump ...Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
Machine code[CODE] OPCODE HEX ADD LD A,05 3E05 F000 LD B,00 0600 F002 INC B 04 LOOP F004 CP A,B B8 F005 JP NZ,LOOP C2F003 F006 LD B,00 0600 F009 LD …
Another machine code problem, sorry[CODE] OPCODE HEX ADD LD A,00 3E00 F000 PUSH AF F5 F002 LD B,05 0605 F003 LD C,06 0E06 LOOP F005 POP AF F1 ADD A,C 80 DEC B 05 …
... /> CP A,0 FE00
JP NZ(LOOP) C205F0
POP ...A fun online game for Slappers.Title says it all. Probably safe for work, unless your boss is a strict un. [url]http://nigoro.jp/game/rosecamellia/rosecamellia.php[/url] :lol:
Title says it all. Probably safe for work, unless your boss is a strict un.
[url]http://nigoro.jp/game/rosecamellia/rosecamellia.php[/url]
:lol:Optimization for this codeHello, I have done and submitted a small program for the CSS Crap Game Compo which involves a machine code routine. The z80 with BASIC and MC is av…
... nz, kontroll7
jp writetext
ret
dec h
jp loop1
kontroll2 ... br /> dec h
jp loop1
... br /> dec h
jp loop1
... br /> dec h
jp loop1
...Laser turntableThis is one piece of equipment i would like to have,ten grand price though!,those with the cash head over to [url]http://www.elpj.com/[/url] [youtub…
... player,- [url]http://www.soundwagon.jp/product.html[/url]
[youtube ...ANN: Tipshop updated Tuesday, 30 November 2010Tuesday 30 November 2010 Happy 15th Birthday, WoS! * Phantomas let me know that the POKE for Two Gun Turtle didn't work. Unfortunately the one he p…
... for Fairlight II
* Jp sent in patched versions of ...A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…
... />
__DRAW_ERROR:
jp __OUT_OF_SCREEN_ERR
DRAW ... ; and (hl)
jp __DRAW_START
... in free E register
jp __DRAW4_LOOP
... in free E register
jp __DRAW6_LOOP
...
