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Name that screen shotJust picked up a half price copy of Gamestm's Retro compilation magazine and was wondering is someone could indentify the spectrum screen shot on pag…
Just picked up a half price copy of Gamestm's Retro compilation magazine and was wondering is someone could indentify the spectrum screen shot on page 18 column 2 row 1 -
Problem with rotating procedureHi folks! I wrote a proc in z80 asm, based on: x' = x * cos (z) - y * sin (z) y' = x * sin (z) + y * cos (z) I used a precalculated table of sin a…
... suspect a circle on a screen, but it is not exactly ... ,l
call mult21
push hl
ld h,a ... ,h
call mult21
pop de
ld b,c ... -
tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…
... to rotate right a whole screen character line complete with ... points to our row
push hl
ld ... /> pop hl
inc h ; move hl to next scanline.
push ... $40 ;
and $58 ; which screen third + $40
ld h ... -
Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... asm is this ( grabs from screen ):
[CODE]
unsigned grab ... length )
{
#asm
push ix
ld ix,0 ...
ld h,b
pop ix
#endasm
}
Screen base pointers in structures. Yes ... -
RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... ; attach stream
pop hl ; the first address plus ... map in FONT
push hl ; save font address< ... column carry flag
pop hl ; restore the font ... /> ; WRITE A CHARACTER TO THE SCREEN
; -------------------------------
;
... -
don't go Vista matesaGreetings. As you well know, there has been a massive campaign to push Vista into the users. I'm against it and always will be. Most of the ancient s…
... been a massive campaign to push Vista into the users. I ... of tasks. That these dialogs pop up repeatedly for the same ... users to get a legal copy of Vista is to buy ... , the cheapest Vista is the copy that comes with a new ... -
Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …
... 2000 ; length
ldir ; copy
; emulate polling ... 22 ; length
ldir ; copy
; move displaced ... 27 ; length
ldir ; copy
; simulate ... ldir ; $18f6
pop hl ; $18f8
push af ; $18f9
... -
My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... push bc
push de
push hl
ld de,SCREEN ...
pop bc
pop hl
pop de
pop bc
pop ... -
Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... can support the Timex 512 screen.
The code I ... draw 0,0!
PUSH HL ;preserve HL
SBC ... 'll be no Carry
POP HL
JR C,gfxdraw2 ... (X)
gfxdraw2:
PUSH DE ;keep DE
New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…
... of one line and one screen's worth of program ... do that fits onto one screen as a complete listing. ... posn
pop hl ;retrieve road posn
push hl ;save ... there's room on the screen for quite a few ... time the write to the screen so the scrolling appears ...So you want to make a cardgame......but you haven't got a good deck to display. Well here is a fully relocatable routine that will do the job for you. Place the code anywhere in me…
... HL,BC
PUSH HL
< ...
again POP AF
LD ... on out of screen
...Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…
... /> [CODE]ld de, 0101h
push de
ld (spp), sp ... )
ld sp, (spp)
pop bc
ret
screen. Instead I get garbage (an ...IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…
... to "read" screen data as ... draw the screen. This has ...
pop bc
push bc
... PrintHex proc
push af
and ...err, I like wrote this years ago, and just found it archived.[b]read it, and say it's crap if you want, but do not go on about the technical side, cos it was bullshit, we all know it, and the end makes no sense…
... 2001, one couldn't just pop into PC World with an ... message flashed on Tex's screen. SEN5241 requests chat accept (y ... , would be like trying to push an airbed under water with ... went down two more would pop-up elsewhere. Tex had been ...Illegal copy of Rough JusticeI've just realised whilst skimming down my games folder in search of some reference material for a room in Miles Mad Mission, that sometime in the pa…
... to have downloaded an illegal copy of Rough Justice?
pop up every now and then ...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…
... bytes to the screen:
push de
... /> ; Next character screen address:
pop de
inc ... inc de
pop hl
pop bc
...Black screen of deathI recently aquired a zx spectrum (revision 3b) of the rubber key variety. it was all running smoothly(for about an hour after pluggin in), i left the…
... and returned to a black screen.
Restarting the device ... left me with a black screen with some minor interferance.
screen with slight interferance (which shouldnt ... type print "hhh" and then COPY and ill get hhh output ...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…
... . Load the compressed screen
3. Decompress the screen
4. ... ;
main2 xor a ; set screen, ink and border to black ... /> ld de,16384 ; unpack loading screen
call unpack
;< ... channel
;
push ix
pop hl
add hl ...How do I manually BLOCK pop-ups in Ff?I'm using Ff 3.0.15 When I go Tools -> Options -> Content -> Block pop-up windows -> Exceptions it only allows me to type in sites I want to ALLOW .…
... ; Options -> Content -> Block pop-up windows -> Exceptions it ... called "[I][B]Block[/B] pop-up windows[/I]" then?Argh ... manually BLOCK sites from using pop-ups? (aside from clicking on ... at the top of the screen)Screen Machine re-discoveredFurther to [b]fog[/b]'s enquiry in another place, it transpires that although the programs as described did appear in Your Spectrum #19, the program …
... 've just received a few Pop.Com.Weekly issues in the ... this morning and found [i]Screen Machine[/i] by Robert Robinson ... .uk/~jg27paw4/pourri/scrndemo.zip]Screen Machine[/url] to compare with ... -loaded the Nodes of Yesod screen.)Question on copying screen bufferHi, Al my prevoius games were copying graphics directly to screen memory starting at 16384. Now I'm experimenting with screen buffer where I could d…
... were copying graphics directly to screen memory starting at 16384. Now ... I'm experimenting with screen buffer where I could draw ... 's ready I would copy it to screen memory.
You ... static image from buffer to screen after HALT.
Am ...Bit functions speedI just stared nonplussed at the documentation for the bit functions. Apparently, if you're using the accumulator, using AND and OR is faster than se…
... that clever use of PUSH and POP to copy data around memory was ...42 colums in screen, in anywherethe routine write in anywhere of the screen, it can start to write in 32X24 position and write from it in 42 colums, it is utility to have border wit…
... write in anywhere of the screen, it can start to write ... buffer
The char set, copy bit 7 in 1 and ... coordenates in addres of spectrum screen.
I redesing the article ...Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …
... /> push hl
push af
push de
call #22e5
pop de ...
pop af ...
pop hl ... see the point on teh screen !
So i need ...Worst gaming decisions ever?In a different thread, I mention what, to me, is probably the single greatest mistake in the history of computer/console games design ever. Here are …
... great things like parachutes and push bikes, but it just wasn ... watch comes up to the screen). The game pauses then, and ... his watch is approaching the screen, the game continues as normal ... />
- The whole "Let's copy Halo or Call of Duty ...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 …
... /> The O.C.P Full Screen Editor/Assembler was published in ... new command to copy the object code to the screen (location 16384 ... had just assembled to a screen dump of 6912 BYTES. As ...Help with mystery game programmer...Hi, I wanted to try to revive an old C.S.S post from 2004, where I was trying to track down the name of a very exploited Spectrum games programmer. …
... the back of Pop Comp Weekly. I used to copy them
stare at the screen at night, like nothing was ...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]…
... Restores B' from D'
pop de ; D'E' = y2 ... mask
; H'L' = Screen Address of pixel
push hl
push de
;; gets ATTR ... IY
pop de
pop hl
...MF3Z80 without +3e (like M3Unlock)Recently I've had a pop again at putting the copy protected Rainbow Islands onto real +3 disk. Some people may remember I tried to do this some time …
... 've had a pop again at putting the copy protected Rainbow Islands ... WOSser.
[*]At the first screen asking to cheat take a ... game crashes after the first screen).
[*]MF3Z80 on the disk ...Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although ... a bit of trickery, to copy a SCREEN$ (or any segment of ... prompted, then press "j", the screen will erase and then will ... /> 35 PRINT #0;"load a SCREEN$ then press ""j"""
36 ...
