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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 (= …
... [code]
ADD:
pop a
pop b
[/code]
inc b
push b
push a
call add ... /> [code]
then:
push b
ret
[/code ... blocks. Then, move the "pop b" instruction to the beginning ... -
How do you restrict this routines actions?I'm trying to plagiarise a piece of code I came across in the 80's, but seem to be banging my head against a brick wall! The routine fades the scree…
... : ld b, 16
l_b7d5: push bc
jr l_b798
jr nc, l_b7db
pop bc
djnz l_b7d5
[STP] Battle for Midway + Theatre EuropeI've just realised that I didn't finish or get any further with two STP's, both from the Classic Conflicts series: [url]http://www.worldofspectrum.o…
... .
The WAV loads with fast load on, but resets if ... />
Anyway, here's a copy of the TZX for checking ...Fastest redraw of screen from UDGsHere's a question for everyone, to generate a bit of code to be used in games: On a standard 48K Spectrum, what's the fastest way to redraw the scre…
... screen and render that as fast as possible.
The ... , it would be wise to copy the attributes to the main ...Complete Spectrum ROM Disassembly book.Hello, interested on a copy of the "Complete Spectrum ROM Disassembly" book. I know they sometimes pop up on some e*stores, but would rather trade wi…
Hello, interested on a copy of the "Complete Spectrum ROM Disassembly" book. I know they sometimes pop up on some e*stores, but would rather trade within the community.
/PedroMIA: Magic Worm - is my copy good enough?Years ago when I was a teenager in Sheffield, I was given a copy of Magic Worm by the chap who lived next door to my grandparents. His son (Richard H…
... Sheffield, I was given a copy of Magic Worm by the ...Strike Force Cobra (Piranha) (Preview Copy 7.8.86)Hiya! I picked up a bunch of games recently and inside the Strike Force Cobra box were two tapes. One was the regular release and the other had a pla…
... with "Strike Force Cobra Preview Copy 7.8.86" typed on ...SpectranetHi all, I just bought a spectranet card and have a couple of questions I hope someone can answer for me. I have played around with it on both a +3 …
... my LAN and took a copy of the menu system used ... is THE best solution for fast mass storage for your speccy ..."Chronos": how fast should it really be?I was reading [URL="http://timfollin.pwp.blueyonder.co.uk/Archive.htm"]Tim Follin's webpage[/URL] the other day and came across a curious remark abou…
... is not really twice as fast. With the fixed scroller the ...Copy from Microdrive to ... where?I received a bunch of Microdrive cartridges with unknown content, which I want to preserve, but I don?t know how. As soon as I bring either a MF1 or …
... expected. My idea was to copy the files from Microdrive to ... disk but neither using a copy command nor pressing the button ...Terry The Turtle-Yellow,Cyan and Red.I am 16 days late with this as i wanted to release it on my birthday on the 1st,so instead as it is father`s day i wish to dedicate this game to my o…
... . with SPACE to jump or push through tough sand and material ... .
In-game – Terry’s fast little heart beat.
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…
... scrollers use long sequence of PUSH instruction. PUSH can be used as ... registers.
Emulation of PUSH instruction can look like
ld hl, (register_x)
push hl
[/CODE]
Stop ... pattern we skip loading
push hl
[/CODE]
...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…
... />
[code]61A8 F5 push af
61A9 3EFF ld ... br /> 62AC F1 pop af
62AD FDE1 pop iy
... 62AF DDE1 pop ix
... 62B1 C1 pop bc
...Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…
Todays Spectrums are fast as hell and few software ... />
Two options:
1. Fast Z80 on the mainboard. Plusses ... than second option.
2. Fast Z80 in NeoGS card, invisible ..."Jumping Jack" on Kempston Joystick.Hello. I'm new here, so at start I want to welcome everybody :) I'm totally newbie in ZX Spectrum. But I'm still own Timex without cassete player (I …
... " on emulated Kempstron Joystick. For fast links I uploaded at: [url ... to type pokes under Cop-Copy. But I do not have ...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…
... /> push bc
call $22E5 ;call ROM plot routine
pop bc ...
push bc
call $22E5 ;plot 2nd
pop bc
inc b
push bc
call ... $22E5 ;plot 3rd
pop bc
quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... RAM). Although the routine will copy any length it obviously only ... PROGRAM
41 REM TO COPY string to RAM or RAM ... RAM;
l =length to copy
43 REM eg.: GO ...Kiss Kill - a Spectrum music video from Candy Says and GasmanYou may remember [url=http://www.worldofspectrum.org/forums/showthread.php?t=43068]the preview[/url] of this from back in March - here's the final re…
... working with lo-fi-chic-pop-velvet-underground-meets-abba-who ... you'll still need a copy of the song to play ...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…
... /> ;
l_0d09: inc hl
push hl
ld (iy+$00 ...
add a, a
push de
ld hl, $009f ...
ex (sp), hl
push hl
ld e, a ... )
ld l, e
pop de
jp (hl)
Childhood moments with my SpeccyHey everyone. The other day I randomly came across a tumblr page called "Me and My ZX Spectrum" ([url]http://meandmyzxspectrum.tumblr.com[/url]) …
... dial! The TV had 12 push-buttons for preset tuning and ... two friends also had their copy so we were all familiar ...MC LPRINT 23681Having problems with this routine to print large on the screen using LPRINT, it works ok in BASIC, but cant seem to get it to loop for some reason in…
... /> push hl
push bc
call print ;call print routine
pop ... bc
pop ...Push 'n' ChaseIt is my great pleasure and honor to announce the release of PUSH 'n' CHASE a game made with CGD featuring a wonderful loading and intro screen …
... release of
PUSH 'n' CHASE
push the mines all over ... "buy" your traps (push the money bags over the ... the water. Everytime baddies push the green button(s) ... into mines, You can push the crates against obstacles ...SCREEN$ bug fixI've been using the SCREEN$() function recently for reading data off the screen rather than taking up space with an array and I got fed up with the s…
... pop hl ;HL=$000D
ex (sp),hl ;HL=$106E
push ... hl
push de
push bc
ld ... 23563) ;HL=(DEFADD)
push hl
inc hl
Troublesome routine, help needed!Having problems with this routine, it basically fires a rocket up the screen, but refuses to detect collisions. I'm using attribute blocks for detect…
... -ords into print string
push bc
call print ;call ... the print routine
pop bc
djnz loop
Simple memory transfer routineI'm looking for a simple memory transfer routine that shifts 32 bytes of data from the address HL is set to 55143, I have tried using LDIR, but cant …
... data minus 32
loop push bc
ld b,32 ... pointer
djnz loopa
pop bc
djnz loop
Just found a FB conversation with Joffa Smiff.Awwwww, I just found this while browsing through my old conversations. Thought I'd post it here. Conversation started 11 March 2009 Mark Jones 11/03…
... ya ever need me to pop over, just for a chat ... !)
I've got a copy of 'MIKIE' on The Speccy ...harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…
... is a call, ret, push or pop instruction then this bank would ..."DIGI POP" program: more digital music on ZX48 (no AY!)[img]http://mister_beep.republika.pl/digipop_demo.png[/img] DOWNLOAD: [url]http://mister_beep.republika.pl/Digi_pop.zip[/url] This is a 1-bit / BE…
... that there is too few pop-song
for BEEPER. So ... .2014.
Title: DIGI POP
Music and gfx ...Where can I get a copy of Elite?Does anyone know where I can get ahold of a working copy of Elite for the 48K? Preferably with as many of the original boxed items as possible. Thank…
Does anyone know where I can get ahold of a working copy of Elite for the 48K? Preferably with as many of the original boxed items as possible.
Thanks!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…
... NC, 65150
65129: PUSH AF
65130: LD ... PUSH BC
65244: PUSH BC
65245: DEC SP
65246: POP ... INC SP
65250: POP BC
65251: ADD ...
65258: PUSH HL
65259: PUSH HL
65260 ... NC, 65395
65372: PUSH AF
65373: LD ...
