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Help Identifying a GameHello fellow Spectrophiles (now legal in 28 countries!), I need your expert help in identifying a particular game I used to play when I was but a la…
... />
[B]4) A horizontal side scroller?[/B]
- Yes
[B]5) A vertical side scroller?[/B]
- Yes-ish (I ... float in a stationary position, horizontal at all times
how to reflect a byte's bit-pattern in assembly?I'm trying to use 16 pixel-wide graphics which are symmetrical around the vertical, i.e. if the left byte is 01001110 the right byte will be 01110010…
... = byte to mirror in the horizontal
; returns mirrored byte in ... />
Mirror_Byte_Horz proc
push bc
scf
jr ...Mushroom ManNice to see that Mushroom Man has been such a popular new release coming in at [URL="http://www.worldofspectrum.org/bestgames.html"]the top of the ch…
... you need
to push the three horizontal beans.
The ...Mushroom ManNice to see that Mushroom Man has been such a popular new release coming in at [URL="http://www.worldofspectrum.org/bestgames.html"]the top of the ch…
... you need
to push the three horizontal beans.
The ... my edit. Its the 3 horizontal beans in the top left ... . The only way you can push them is up and there ...Mushroom ManNice to see that Mushroom Man has been such a popular new release coming in at [URL="http://www.worldofspectrum.org/bestgames.html"]the top of the ch…
... my edit. Its the 3 horizontal beans in the top left ... . The only way you can push them is up and there ... go by, but don't push them all up.Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... use a constant colour (say, PUSH the same value a few ... the border colour during the horizontal fly-back, otherwise you get ...Keith Burkhill WhereaboutsDoes anyone have any idea where Keith Burkhill (he did various conversions for Elite) I've tracked down various numbers but they've all ended in dead…
[QUOTE=torot;368904]did ghosts and goblins use a PUSH scroller?[/QUOTE]
Yes. I think it did. And I think it beat Cobra to the shops too!Keith Burkhill WhereaboutsDoes anyone have any idea where Keith Burkhill (he did various conversions for Elite) I've tracked down various numbers but they've all ended in dead…
[QUOTE=torot;368904]did ghosts and goblins use a PUSH scroller?[/QUOTE]
Yes it did..Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... /> 50 ; f200 - ffff SP1.LIB horizontal rotation tables
51 ; f000 ...
push af
push bc
push de
push hl
push registers for you.
ZX81 more powerful than the Speccy?I have been reading ?The ZX Spectrum Book 1982 - 199x? by Andrew Rollings (thanks again, Andrew - it?s a great read!). There are some comments in the…
... think that one person could push the boundaries of the PC ... game, seeing I had 1024 horizontal resolution, assumes I've got ...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 …
... /> .starthere
push hl // save possible message parameter ... hrot; // +5 current horizontal rotation (0..7)
... e_hrot; // +9 effective horizontal rotation = MSB of rotation ...Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... bc,184*256+249
; push bc
; call print_char< ... off bottom of screen
push bc
;save off ... ;drop through now into adjacent Horizontal Attribute subroutine - all RETs will ... address - set the adjacent horizontal Attribute - then set the ...LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... /> The idea with [b]pop/push[/b] loops is that [b ... ]push[/b] writes two bytes more ... quarter of the screen's horizontal width.Keyboard demoHere's a preview of a new keyboard for the special fx engine. Press any key to start/restart. [url]http://dl.dropbox.com/u/9498358/fire_keyboard.sn…
... /> drawch1: push af
push de
push hl
... br /> drawch2: push af
push de
push hl
call ...
; first byte is horizontal character position-1
; ...
; first byte is horizontal character position-1
; ...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... perform a 50hz pixel smooth horizontal scroll:
[code]
exx
push hl
push ix
push iy
ld ...later today......[IMG]http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs909.snc4/72268_172079126142549_100000213882336_641184_4866225_n.jpg[/IMG] [IMG]http://sphotos.ak.f…
... ) The player slides agains't horizontal map blocks but not vertical ... I will try more pop/push method that someone once advised ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... locals last can allow shorter push/pop sequences to access them ... accidentally plot to an odd horizontal pixel nothing will crash, you ...Gigascreen - programming guideDoes anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BA…
... BC times.
;Make horizontal colour stripes on screen 1 ... for looping back here
PUSH AF ;Store numbers on the ... stack...
PUSH DE ;...as they'll get ... messed...
PUSH HL ;...around with.
< ...Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... containing two colours in alternating horizontal stripes. To do that, you ... I learned that the LD/PUSH method was faster, and I ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... /> d17e: call $c984
d181: push iy
d183: pop hl ...Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
That's a nice smooth scroller Zoltar, nice one.
... code in A
push hl ; Store H before calculating ... ; Preserve registers
push de
push bc
push af
128k multicolour graphics...ok over the years I've been a fan of multicolour graphics on zx spectrum, an I clearly get that on a 48k the (8x1@2)multicolour limit stands at 18cha…
It's tricky. The POP/PUSH or LD/PUSH method works because you ... then PUSH the data to successive memory ... two distinct blocks on each horizontal line, each an even number ...Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... binary bits representing a horizontal pixel coordinate 0-255. ... address
push bc
push hl
...
join:
push hl ; save display address so ... /> djnz loop ; repeat for each horizontal column
; pixel ...Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…
... intermediary animation (even when you push straight up from a down ... that you have far more horizontal screen area to cover if ...New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... and looks simliar in both horizontal/vertical and diagonal
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... and looks simliar in both horizontal/vertical and diagonal
scroller like nemesis/r-type unless ...New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... and looks simliar in both horizontal/vertical and diagonal
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... and looks simliar in both horizontal/vertical and diagonal
