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The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... of metal (pictured above) was developed by ... /512/1024 etc pixel boundaries. To explain ... access are impossed during screen display generation. This ... rts
; -----------------------------< SET PALETTES >----------------------------
; ... -
Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... list...
TIP: The above method can cause problems when ... 'Y' positions on a 192 pixel high display window:
screen sprite X and Y postions ... DWORDS
CMP = Compare and set flags
DWORD = 32BITS
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... characters (since all characters above 23 are treated as ... /> ld b, 0 ; set b to hold $00
set the ATFLG to indicate that ... if 8-bit mode is set
jr nz, fchr ... correct pixel position, place it on the
and a ; screen one ...Creating a Demo with TommyGunSome of you may have caught the thread in 'new game ideas' concerning Super Stick Man (a title that WILL eventually change due to how the graphics ha…
... , can be off screen)
ld bc,-20 ; pixel y coordinate 0 ... ..2047 (area wraps, can be off screen, -20 ... is 20 pixels above top)
ld ... you but you have to set that up for your specific ...Creating a Demo with TommyGunSome of you may have caught the thread in 'new game ideas' concerning Super Stick Man (a title that WILL eventually change due to how the graphics ha…
... can be off screen)
ld bc,-20 ; pixel y coordinate 0 ... can be off screen, -20 is 20 pixels above top)
ld ... you but you have to set that up for your ... TommyGun (have got Pasmo set up I seem to have ... what, and how do I set it up... Remember, I AM ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
[QUOTE=Sokurah;562678]Yes, my late answer to Jonathan's question isn't laziness...just too deep in code to mock up the following little picture, but the thing basically is - the sprites aren't all the same size - sideviews are slimmer than frontviews and ...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 …
... cross the screen) and many games stick to two pixel movement, requiring ... reentry conditions for the loop above are met for repetition for ... the L register. L is set to 0 when the loop ... one pixel and restoring the column position. Then L would be set ...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 …
... - so the zero flag is set) and need to start back ... B as a counter and set it to 8.
face_loop2a ... /> ;and I move one pixel down the screen
djnz face_loop2a
above...
;
;
;
;
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 …
... bit corresponding to a set or reset pixel.
Then ... , the spectrum's character set and udgs are designed to ... that post I mentioned above, the pixel x coordinate is shown ... in current pixel row
; hl' = screen address
; b' = pixel y rows ...House of Hell gamebook conversionAs there's potentially several people working on this I thought that I'd set up a thread in the correct section, rather than it continuing in Wanted …
... as much of the main screen free for the narrative text ... to select off-screen options. The left-hand screen (above) is the best ... I called my "Skeleton" character set, which might be suitable for ... house is the single white pixel in amongst the trees at ...House of Hell gamebook conversionAs there's potentially several people working on this I thought that I'd set up a thread in the correct section, rather than it continuing in Wanted …
... as much of the main screen free for the narrative text ... to select off-screen options. The left-hand screen (above) is the best ... I called my "Skeleton" character set, which might be suitable for ... house is the single white pixel in amongst the trees at ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... the screen, where each of those bits represents a pixel. So ... plot a pixel at position 0 then you set the left ... the bits of the screen memory again. This is ... you draw on the screen. So there are two ... s level is. The above would benefit from some pictures ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... )
LD HL, 4000h
SET 0, (HL)
...
; Map DE to pixel in screen buffer (HL)
... HL) ; Self Modified code (from above)
MOD_INST:
OR (IX ... /> ; Bit positions within screen byte to set
.BYTE 00000001b
3D Deathchase on the Commodore 643D Deathchase has been ported to the C64, at least according to Micro-Mart. According to this week's MM, the port is called Hell Racer, and here's a …
... 't support the 4:1 pixel ratio sixteen colour modes).
unset and set pixels share a hue value ... sprites with the sprite priority set in a certain way that ... to "tint" areas of the screen a different colour - if you ...ZX-Paintbrush 2.2.1 releasedDear readers and friends of ZX-Spectrum emulator stuff! Today I released the version 2.2.1 of ZX-Paintbrush with interesting new features and many b…
... that one of the above described methods did not ... really want to keep both above mentioned ways of performing ... a problem with the lower screen as it doesn't ... , and throw up a pixel or character grid with a ... greatly enhanced its feature set and now mean that ...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…
... over
;read keyboard
;set new carposition
;crash? if ... /> Copy and paste the paragraph above into the Spin Assembler.It ... a direct effect on the screen display.
The complicated ... 23296, which affects an 8x8 pixel block per byte, in logical ...RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
... of a pixel from three neighbours (e.g. left, above, and above-left ... tested. I then convert the screen into showing just the top ... correct and set where the prediction was wrong. The screen can be ... clear the pixel. If you're wrong, you set the pixel.
< ...Bad Loading screens.All this Avalon and Dragontorc talk got me thinking about 'Sorcery' that was on the Softaid compilation. Then I had a glance at 'The Pyramid' [img]h…
... it.
Thus, a screen can be "optimised" for loading ... have more pixels set than unset, and then inverting the pixel values of ...Bad Loading screens.All this Avalon and Dragontorc talk got me thinking about 'Sorcery' that was on the Softaid compilation. Then I had a glance at 'The Pyramid' [img]h…
... it.
Thus, a screen can be "optimised" for loading ... have more pixels set than unset, and then inverting the pixel values of ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... move the sprite one pixel down with respect to ... therefore needs a blank pixel row above it (and a total ... a sprite down a pixel means it now occupies one ... . By default they are set to 1, which is ... modify how each char on screen is drawn (what is done ...Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…
... update array for full size screen 32x24
53 ; d1ff - ... /> 54 ; d1f7 - d1fe SP1.LIB pixel buffer
55 ; d1ed - d1f6 ... /> #endasm
[/code]
Above are three different ISRs that ... that preserves the main register set. The second is an ...A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... equivalent to the LIB declaration above
char ... ld bc,-10 ; vertical pixel coordinate, above screen
ld hl,0 ... rectangle defining the full screen
; sprite above is clipped against ... are already set up. The asm snippet above is calling ...FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... true fonts are a step above in complexity from fixed width ... , blank the text left one pixel, blank the text right one ... foreground / background brush method. The set pixels from the font are ... pattern is generated from the screen address.
The OR ...30-column 8x2 multicolor (even in 48K)I don't recall any 8x2 multicolor routine for 30 columns that would work on all Spectrum models (including the Spectrum 48K), so I decided to write i…
... there's no need to set any attributes in advance.
screen (which happens for first pair of pixel lines on ... rendering attributes from a row above. Therefore this routine doesn't ... can simply set [B]SP[/B] to the middle of screen and ...AMX mouse emulationI'm trying to add AMX mouse emulation to Spud but not getting very far. I can get a reaction to button presses but nothing to moving the mouse. …
... CTRLB.
2. Set the Interrupt Vector address:
From the above handler you can see that ... move it right by 1 pixel.
Interrupt b ( ... the ULA is drawing the screen.
Spectaculator's implementation assumes ...AMX mouse emulationI'm trying to add AMX mouse emulation to Spud but not getting very far. I can get a reaction to button presses but nothing to moving the mouse. …
... CTRLB.
2. Set the Interrupt Vector address:
From the above handler you can see that ... move it right by 1 pixel.
Interrupt b ( ... the ULA is drawing the screen.
Spectaculator's implementation assumes ...Real Spectrum RamSoft colour issueHi, Using W7 Home thingy. I can set the prefs so Real Spectrum to full screen, but in full screen mode the colours are all wrong. Is it a Windows …
... emulator to a full-ish screen size in windowed mode? ... settings from "Standard 1x" to "Pixel Scaler 2x" in video options ... .
Under [VIDEO] section, set BlitterFX: 1, in "VideoMode" put ... rs window across the entire screen, but above solution is quite enough ...Real Spectrum RamSoft colour issueHi, Using W7 Home thingy. I can set the prefs so Real Spectrum to full screen, but in full screen mode the colours are all wrong. Is it a Windows …
... settings from "Standard 1x" to "Pixel Scaler 2x" in video options ... file.
Under [VIDEO] section, set BlitterFX: 1, in "VideoMode" put ... rs window across the entire screen, but above solution is quite enough ...Test screens for ZX PrismNot sure that this is *really* the right section for this request, but it's relating to new hardware I'm developing so let's start it off here - a mo…
... the beginning of screen 0, screen 1, screen 2 and screen 3.
... above except that of course it uses data from "screen 1" and "screen ... palette, a bit set here = a bright white pixel
... which case the pixel and attribute data from screen 0 is ...Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... pattern runs over its entire set of combinations when Y3 and ... to read an attribute from screen RAM. The datasheet states ... the pixel address for a character square what you posted above ... modifying the current screen address by moving one pixel away.[/QUOTE]
