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Pinball Dreams vs Fantasies - which has the better "evil" table?Hi everyone and welcome to the September 2017 edition of the Which Is Best? Last month I placed two iconic classic arcade games against each other a…
... Fantasies (Slam Tilt's Demon table will not feature as it ... you think is the better table when it comes to music ... the ball loss on Stones table so I could show more ... -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... /> ret
;Redefine Keys table:
;Col 1: control number ... br /> ld bc,5
jp 8252
ss_key cp ... br /> ld bc,7
jp 8252
cs_key ... br /> ld bc,7
jp 8252
as_is_key rst ... -
Fast Binary to Text DisplayI've done this thing that takes some memory contents and converts it to a Binary version of 0's and 1's on screen. However, I've no idea what to use …
... the bottom to indicate how fast it runs.
[img ... -
Please guide me with this decision!Hello, I have decided I would like to try and create some simple ZX Spectrum games of my own. The problem is that machine code is totally and utter…
... that's right off the table.
Question is:- Should ... guys but its not arcade fast movement. it's kind of ... -
[Asm] Is this nested loop faster than LDIR or a bunch of unrolled LDI's?Hi all. I'm learning Z80 asm on Speccy 48K, and to start with I decided to write my own "CLS" routine (without relying on ROM calls or LDIR) as a lea…
... me most is efficient fast code, so after weeks ... the previous row.
jp nz,cls_attributes_loop ; Keep looping ... the previous row.
jp nz,cls_screen_loop ; Keep looping ... br /> ;ret
infinity:
jp infinity ; Avoid going back to ... -
A table of AY frequenciesHi friends, Simple request I hope; does anyone have source for a table of note frequencies on the AY chip as used in the Spectrum 128? I had a loo…
... anyone have source for a table of note frequencies on the ... -
Setting breakpoints in source code to make debugging easierAfter two years I've resumed my Speccy coding project. I'm porting a yet "unported" game from C64/Atari to 48k Spectrum using Z80 assembler. At the m…
... the actual coding is easy, fast and fun, debugging is problematic ... called "debugger" which simply is "jp #0065". While this works exactly ... -
Fastest emulator screen renderingHi, I'm developing an algorithm for fast emulator screen rendering and here is what I came up with. 1) Use 4bpp indexed image format as target …
... developing an algorithm for fast emulator screen rendering and ... 3) Create a 16 entry table to take bits B(right ... [/code]Create a special table for that..[code]uint32_t ... plan to have a table of offsets from 16384 for ... ) and it is really fast. How would you do ... -
Pseudoanalogue joysticks for the ZX SpectrumI think that when I got my first joystick back in 1985, this particular type was no longer around or it was extremely difficult to find (if commercia…
... /> It really shines as a table top model.
Again, all ... responds quickly to short inputs. Fast and smooth operation makes it ... -
ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…
... Joystick support: buttons to event table is not set to defaults ... and dac activation when tbblue fast boot mode
-added turbo ... -
New Beeper engine wip demoI've made a new lightweight beeper engine, which should be able to be played in an ISR for in-game 2 channel music with simple drum clicks/pops. Simi…
... and portamento, as well as fast arpeggio presets for single channel ... uses a 16 bit frequency table which is 124 bytes and ... -
New ZX81 Game: ZedipedeNot strictly Spectrum-related but I thought this might be of interest to some on here. I've just written my first ever arcade game for the Zeddy, a …
... game for the Zeddy, a fast Centipede variant. Basically I converted ... , new enemies, a high score table etc. Incidentally, this is the ... -
Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... processkeypressed
call drawcursor
jp .loop
IF ... ; address of the screen rows table page
; add on ... call putc
exx
jp puts
scroll:
inc c
jp .loop
.epilogue
... -
Exact emulation of the Snow effectAs the original post on another forum is outdated, and for those who don't know about that forum, I duplicate this info here: At the beginning of …
... snow test with a tuning table.
The snow effect ... it with pressed Ctrl. Very fast running columns on the screen ... with snow it's always fast memory page. -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... way to make a lightning fast line routine is to implement ... you have to have a table of 192 words to store ... you can either have another table of 256 bit masks or ... -
PAW questionThis may not be the right place but anyways there it goes: I've been trying to figure out how to import graphic files in .SCR format in the PAW parse…
... we want to insert a JP command as this will JumP ... routine is. The code for JP,pq in decimal is 195 ... in the 4k the adventure table occupied. And you'll need ... -
WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…
... can be seen from the table, the input combination '0 1 ... through the resistors. A very fast, cheap and neat design indeed ... -
Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …
... that we can't program fast and short routines.
I ... C,E
LD HL,TABLE-1
PRINT LD B ... NBYTE
JR NLINE
TABLE DEFB 13,27,"J",24 ... -
Spectrum edge connectors and 'Dataman Softy S4'Hi, I moved this from the sales thread because it seems more appropriate...anyway... I was twerping around the idea of turning a Spectrum into a we…
... vectoradress. First you make a table of 257 bytes, starting at ... ,A
LD HL,#FD00 ; TABLE
LD B,0
ORG #FEFE
JP MY_PROG
[/code]
Question about CP Z80 instructionSorry if this is the wrong folder, but it seems the most appropriate. When performing a CP instruction, is the P flag set when the compared values …
... ]
CP B followed by JP x where x is:
You shouldn't need this table.Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... /> [quote]2. Having a shifting table, along these lines:
; hl is base of shifting table
; ix is screen area ... you were writing a shifitng table you'd be taking a ... fact you can have a fast four pixel shift as well ...Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... -the-fly, have a shift-table instead of doing various bit ... .
Anyway, using a table, each byte can be rotated ... the sprites, especially in the fast moving sprites.
8 ...which game would be the best remake?ive got a few remakes and the best of them is Head Over Heels. what do you think should be done? I want to see a more developed version of Dun Darach…
... meant it was way too fast when i played the "Classics ... couple of hurdles. LD=Load , JP=Jump , RET=Return ... etc etc ... because it is virtually as fast as MC when compiled and ...AssemblersProbably asked a question that's been asked a million times before... but... I've decided to do a bit of old Speccy machine coding again, after 20 y…
... speed. If you make a fast plotter in MC, you can ... , etc. use a sine lookup table or something.
[quote ...Problem running these gamesI just haven't been able to run the games "The Master" & "The Sacred Sword" (by Topo Soft) in Spectaculator (5.1). Sacred Sword does run in Spin (I…
... Master runs fine when all fast tape loading options are off ...
LD SP,5CF0
JP 0561
0561 is ...help in byte mirroring.I need some help. What is the best way to mirror the byte? (for ex. 10010011 -> 11001001) I mean, if there is a simple way to do it (may be with OR, …
... /IY or HL is available JP HL etc. would make the ... JP Swaps only 4 T states ... 7 it's still not fast enough to compete - since you ...help in byte mirroring.I need some help. What is the best way to mirror the byte? (for ex. 10010011 -> 11001001) I mean, if there is a simple way to do it (may be with OR, …
... code and not having a table.
In the context ... -off procedure, and still very fast (in Java).
For ... a case for using the table-method.
--
Dr ...
