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PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…
... bit difficult to follow. See Geoff Wearmouth's [URL="http://www ... archive for the PLOT and DRAW routines. -
PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…
... 't use the DRAW in a bow (the third parameter) it isn ... ROM routines for PLOT and DRAW
[URL]http://www ... -
Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... back-buffer for the middle third of the screen which contained ... correctly, It uses PUSHes to draw the blocks for the ground ... -
Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…
... a simple RET for screen draw timings to begin with. Once ... the table (65280 upwards) for variable storage, so long as the ... -
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…
... /> };
// Attach C Variable to data Declared in ASM ... with some arbitrary patterns, and draw it.
void loadlevel()
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... many frames as needed to draw each element of the landscape ... style graphic engine to produce variable character profiles and landscapes with ...You play, like, a girl!I'm having trouble thinking of any Speccy games, apart from the Mojons' boobyfests, Gauntlet (Thyra), Gothik (Olga) and Rampage (Lizzie) that feature…
... looks like anyway, and in third person mode it's not ... might not work in a third person shooter (then again, they ... into real vehicles, increased the draw distance and made the graphics ...Chequered Flag vs Pole Position[CENTER][IMG]http://www.worldofspectrum.org/showscreen.cgi?screen=screens/in-game/c/ChequeredFlag.gif[/IMG][IMG]http://www.worldofspectrum.org/showsc…
... ;609831]I've always preferred third person games, never understood why ... goes from first person to third person and why I never ... Formula One Grand Prix by Geoff Crammond?Sinclair ZX Spectrum BASIC programming manual...Hi Folks, Does anyone know how many editions of the Spectrum BASIC programming manual were released (the orange one that came with the 48K)? I seem…
[QUOTE=Geoff;618005]Yesterday being Friday the ... and scan the second and third edition of the Orange Book ...Sinclair ZX Spectrum BASIC programming manual...Hi Folks, Does anyone know how many editions of the Spectrum BASIC programming manual were released (the orange one that came with the 48K)? I seem…
[QUOTE=Geoff;618005]Yesterday being Friday the ... and scan the second and third edition of the Orange Book ...Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
[QUOTE=kgmcneil;622597]To Geoff: Your PM mailbox is full... : ... .
===================================================
From : Geoff
To : aowen
Date ... initialization should set the NMI_ADD variable to NMI_PTR. It should not ...Un-named AGD 3 gameI've been playing about with (and learning a lot about) Mr. Cauldwells excellent AGD 3.0 today (being off work with shot knees has given me a lot of …
... to the game...
Third, i'm trying to implement ... bright.
You could draw the panel in the font ...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 …
... up the rest).
2. Draw new pixel data for that ... a sprite, draw its attribute as well.
3. Variable delay. Sound ...ZX-Paintbrush version 2.2 releasedDear readers, Today I released ZX-Paintbrush 2.2 with many new features. I hope you'll like it. Please refer to ZX-Paintbrush's section of my homepa…
... like CorelDraw? There you can draw different layers and place them ... "graphic brush"
and draw lines or dots with those ... thing, I created an internal variable called 'FAttributeHeight', which stores 1 ... used a special technique to draw the picture: A drawn ...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 …
... new blocks that the draw address moves up into ... putting in, so we draw new blocks at the ... it, when the buffer draw reaches the bottom it wraps ... using the behind the raster draw. The code below is ... here or before, sprite misses third screen segment later
...In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... and image?)
Graphics (to draw the images or pixels directly ... GC, I think setting a variable to null may be a ...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…
... this chapter we will
- draw our 'car' by changing the ... character square to blue.
- draw our 'road' by using a ... road. This points to a third of the way along the ...Daily Fail are delighted again...At Last!!!! They say like it's actually what most people want! I think they fail to realise that people can just pop online to see anything that gets…
... every variable of social "architecture "..not just games and movies to draw ...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 this, you can't draw conclusions based on a single ... URL], you will notice each "third" of the screen is independent ... 2K still contains the middle "third" bitmaps, and the following 2K ... still contains the lower "third" bitmaps. The attributes also remain ...RANDOMIZE USRI always thought that this particular basic command was not intuitive! If I understand correctly is means run the code from the memory address, is t…
... with DRAW USR,USR.
RANDOMIZE simply modifies the SEED system Variable ...+3e filebrowserHello everyone, Im writing a game/program loader for the +3e (with an IDE interface, but it can work with floppies too). The program lets you choose…
... one chunk of code to draw and manage all windows (better ... now) and creates a string variable with the file names.
Drawing ovals...Hi Folks, Is it possible to draw an oval using the Sinclar BASIC DRAW commend and the 3rd parameter? I have been trying (and failing). Many thanks…
... SIN/COS plot calculation with DRAW, in that the results aren ... the square root formula I draw the ellipse in two halves ... hadn't used such long variable names, but that was so ...What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…
... moving sprite. Ritman uses a variable size buffer to do this ... that the routine has to draw. Calculates the new mask. The ...Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... only because they don?t draw any current from the battery ... />
[QUOTE=1024MAK;722929]
Third, use a battery back-up ...filled shape creating codeDevelopment is continuing well on a resurrected project of mine from about 20 years ago. Speed and size optimizations are going well along with displ…
... side of a shape and draw horizontal lines straight across. But ... the top, out to the third point, and back in to ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... br /> pop de ; unstack variable pointer
pop bc ... ld (hl), d ; write third byte
inc hl ; ... 1, (iy + _flagx) ; existing variable?
jr z, l_exists ; ... to
dec hl ; variable
dec hl ; letter ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... back
ld d, (hl) ; third value to D
dec ... /> call next_one ; start of next variable
call reclaim_2 ; reclaim existing ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... ; unstack pointer to system variable
org ... ld (hl), e ; system variable
ret ; end of ... a ; next string or array variable?
jr z, next_o_4 ... br /> ld bc, -100 ; third digit
call out_sp_no ; ...FZX Driver for z88dkAn fzx library for z88dk can be downloaded [URL="https://drive.google.com/file/d/0B6XhJJ33xpOWM2hWNjAxMVkxaEk/edit?usp=sharing"]here[/URL]. The libr…
... z88dk? like the FRAMES variable
I would just ... PEEK the system variable but it is made ... first two bytes of system variable FRAMES.
... FRAMES like any integer C variable.
[code]
If you need the third byte, you can map a ...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…
... br />
// Attach C Variable to Sprite Graphics Declared in ...
#endasm
sp1_UpdateNow(); // draw screen now
for ... drawn
sp1_UpdateNow(); // draw screen area managed by sp1 ...
