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Beginner questionThis might sound and be daft.... I've just been reading J Cauldwell's "how to write a Spectrum game" but was thinking of writing something in C as I…
... ROM (or whatever) routine inlining assembly:[/b]
[code]#asm ... you need to copy a variable to a register, to something ... -
SUPER INPUTA couple days ago I searched for an "INPUT string" routine that I could use in Assembly programs and supported multiple lines, but I found none. Thus…
... Assembly program to invoke an Assembly routine passing parameters through a BASIC variable ... -
Bug fixing woesGaahhhh! I've spent an afternoon off work agonizing over why my routine didn't work. It's something I'd already restarted so didn't want to wipe th…
... shift rnd generator, but stupidly forgot it affects hl. This is ... used to loading from a (variable) or ld a,r. This ... -
Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…
... interest?[/QUOTE]
You forgot the Laserharp, bverstee! :grin: :grin ... notes on PCB fabrication and assembly.)[/QUOTE]
Shame. He ... -
EmuzWinHi folks I'm using EmuZWin and it's started running games super quick (not all games but some) I've tried messing around with speed settings but eve…
... list of clickable assembly commands in case you forgot them, allowing you ... -
Yumiko in the haunted MansionSo, here is the promised Halloween preview... Go to the zx section of my homepage to download it. [img]http://members.inode.at/838331/zx/YomikoInTheH…
... to convert some stuff into Assembly[/B]. Noticed that replacing
forgot your warning not to), and ... -
Asking for help: ZXBC to ASM routine translationHallo, In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler [code] sub light(x as uinteg…
... /> Okay, you are right. I forgot to explain that in ZXBC ... is the case with y variable as bitshifting on y with ... -
ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
I'm sorry. Some of assembly is needed to complete the ... /> So I have optimized the variable addresses for do the snippet ... -
Printing textThis is probably quite a basic question, or there might be something obvious I'm missing. I'm looking for an economical way of printing formatted te…
... the Mole Rat code (I forgot it had instruction screens!) and ... to look up the system variable S_POSN and CL_SET as I ... another magical ROM routine/system variable that could be used. -
720K Amstrad PCW8512 drive B: as drive A: on a Spectrum +3 ?Hi Spec-chums. I happen to have a 720K drive from an Amstrad PCW8512 which i got off ebay, and i was wondering if it is possible to use it as drive …
... at full capacity, and i forgot to mention that the drive ... spindle that drives the head assembly back and forth has a ... -
Keyboard scanning routines / techniques?What keyboard scanning routines or techniques do people use? I'm looking to write something which doesn't rely on the ROM-based keyboard scanner, an…
... .
The bit I forgot in this codepath was to ... out the "key being pressed" variable such that if you press ... -
pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... .
[I]PS: I forgot to mention that simply processing ... problem is, the extra Z80 assembly code required to manage whatever ... -
pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…
... take some time in Z80 assembly.
[*] In algorithm ... ;postcount=44"]#44[/URL] in variable terrain, using a single source ... listed above. The problem is, variable terrain is typically used in ... -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
... full rewrite.
I forgot to upload the source code ... that knows a bit of assembly can tinker - the congratulations and ... -
Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... communicate more information to the assembly programmer.
As an ... maybe saving to a stack variable ("ld (ix+d),a"). Then ... use this or fastcall for assembly routines called from C):
SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... standard compliant.
[*]Assembly compiles with GNU binutils.
[*]Assembly file includes X80 virtual ... /> [*]Use reserved words as variable names during tokenization.
... [*]User system variable space accessible via IY register ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... stdio getk is reading system variable LAST_K, like basic does, ... 23560);" syntax places the C variable LAST_K onto address 23560, ... which is where the system variable LAST_K is located. The interrupt ... tried reading the keyboard with assembly but z88dk says it ...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…
...
1 errors occurred during assembly
[/quote]
Is ... define space for the missing variable.
With these changes ...Problem with Pasmo Assembler/Speccy emulator?I'm at the start of trying to learn Z80 assembly for the ZX Spectrum. I'm using Speccy 1.7 as my emulator, Pasmo as my assembler, and am following t…
... of trying to learn Z80 assembly for the ZX Spectrum.
assembly-part-i.html[/url]
Variable not found, 0:1" which ... /> You said you got the "Variable not found" error, so here ...Changing the font in z88dkEither I've got this backwards or the documentation is incorrect... :smile: "[URL="http://www.z88dk.org/wiki/doku.php?id=platform:zx"]The standard Z…
... ? I understand sdcc has inline assembly, so what is exactly missing ... program, ie intermingled with global variable declarations. It's ok to ...Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... /> One other speed consideration I forgot to mention is that recursive ... the terminating iteration level is variable), and the workspace saved during ...Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... as integers etc (with DIM variable as type) or it will ... custom named functions and inline assembly if you like.
assembly - you wrap it in a ... having to hassle with writing assembly for the setup at the ...Andromeda and MCoderI came across "Andromeda" by PSS written "in BASIC for MCODER" by A. Tobias 1983. Unfortunately the ANDROMED.TAP file always failed with R Tape Loadi…
I forgot to say that ANDROMED.TAP ... bug in 2.B - the variable count is inaccurate under 2 ...DIM DATA and the likeSo...I'm trying to work out arrays in BASIC a bit more and have knocked up the following quick test bed to fiddle about with before trying anything m…
... you really want to learn assembly...! If you learn something else ... /> Try out a bit of assembly:
[IMG]http://i1016 ... />
I'm getting a variable not found error when trying ...Media player recommendations please?What's a good media player that plugs into a TV, has a remote control, and can read files from a USB stick, please? Being able to play DVDs too woul…
Sorry, I forgot to post my eventual decision ( ...
Framerate: Same as Source, Variable
Quality: Constant Quality
How did you learn to code on the Spectrum?Got to be honest, as much as I wish I did, I don't know anything about programming. I had a Spectrum (+2 and then +2B) when I was a kid, and my prog…
... and seeing you all exchange assembly code and wondering how the ... it was about programming Z80 assembly for ZX-81, ZX-80 ... .
I never quite forgot the joys of the Z80 ...Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... completing or I've totally forgot about them, so, *anything* you ... ] - T-state display next to assembly instructions
[MAYBE] - Show t ...New Game: Sun Bucket[IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/loader_zpsbc757e08.gif[/IMG] [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhugh…
... El Stompo (sorry Denis I forgot to supply that, I see ... JP 56 (for the 23560 variable), by inserting a custom 'last ...
