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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…
... can learn the basics of machine code in half an hour by coding ... a direct effect on the screen display.
The complicated ... paper colour down the screen.
In the spin assembler line ... fill the screen with the road we will use machine code's equivalent ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... on a spectrum in assembly/machine code... No fancy screen shinanagins, just data storage ...
[/code]
These are the codes for loading values into ... registers..
[code]
3E ... -
One Liner - Machine CodeHi Dr. BEEP, Digital Prawn, et. al., I think that what you guys have achieved with the one liner contest is absolutely amazing. It brought about wh…
... machine code).
Specifically, the program will
1) Load in a machine code ... machine code in an ASCII format
3) the "length" (in bytes) of the machine code ... the length of the machine code string in ASCII format.
... and bottom of screen -
Hidden routine in loading screenAs discussed in another thread, the loading screen for [B]Back To Skool[/B] seems to have a hidden routine (in blue INK and PAPER). It would be inter…
As discussed in another thread, the loading screen for [B]Back To Skool[/ ... to have a hidden routine (in blue INK and PAPER). It ... be interesting if someone skilled in Z80 assembly could take a ... -
storing machine code in BASICApart from putting m/c above RAMTOP, which means that it has to be POKEd or LOADed separately after the BASIC program; or putting it in a REM, which …
... method, described in Toni Baker's "Mastering Machine Code", which provides ... LOAD "filename" CODE mcpos,machine_code_length:
PRINT "machine code starts at ";mcpos ... STOP
9999 REM *** MACHINE CODE STARTS
AFTER THIS LINE ... -
storing machine code in BASICA couple of years ago I posted a routine for storing machine code between PROG & VARS, based on an idea in Toni Baker's "Mastering Machine Code". Thi…
... storing machine code between PROG & VARS, based on an idea in ... Toni Baker's "Mastering Machine Code". This enables ... ):
REM INSTALL MACHINE CODE... with GO TO 9161
CODE space
9161 CLEAR ... -
Machine Code in 30 minutes - car gameWotcha folks, 30 years on and I'm still struggling with Machine Code. I'm going through the 30-minute tutorial on the Chuntey blog and it's all made…
... I'm still struggling with Machine Code. I'm going through ... caps to v
in a,(c)
cp ... space to b
in a,(c)
cp ... br /> dec l
dontmove[/code]
Unfortunately, there ... into BC, but what is 'IN A,(C)' actually doing? ... -
How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…
... /> how the display is mapped in memory), which can
clear ... , two thirds or the whole screen
(13 bytes). I also ... (30 bytes).
However, this machine code routine, when I tested
screen
pixels are stored in memory) then that ... -
LOAD "" CODE in machine code/store 128 bank dataHow do you LOAD "" CODE from machine code? I have written the following MC routine that fits into a REM statement in a basic program. I want to cal…
How do you LOAD "" CODE from machine code?
I have written ... fits into a REM statement in a basic program.
< ... worth of 128 code in bank 6?
[CODE]ld a,64 ... />
;LOAD loading screen
;LOAD 128 bank 6 code
Help needed... RND in machine codeI have been battling away trying to convert a simple BASIC routine (below) to machine code, but to no avail. The routine is used to fire 2 bullets a…
... simple BASIC routine (below) to machine code, but to no avail.
screen at 4 random heights
Many thanks in advance...Machine code/Assembly language back in the dayHello. Back in the 80s when I was a kid, I didn't learn Z-80 machine code, but I was always curious about it. Just recently I decided to explore Z-…
... my little attempt at learning machine code on the Spectrum made me ... of tape loading time, and you re-type your code, this time ... I was learning machine code on a real spectrum back in the 80s ... for people who were learning machine code back in the 80s?
machine code basicsWondered if anyone can help me out. I have been playing round with some disassemblers (Zeus). And Machine code loaders. All I want to do is print my…
... with some disassemblers (Zeus). And Machine code loaders.
All I ... print my name on the screen but i can't find ... help me out.
In other non- z80 examples there ...Fast division in machine codeHi Does anyone know what is the fastest way to divide a 16 bit number by 24 in machine code. Derek [ This Message was edited by: dmsmith on 2004-0…
Hi
Does anyone know what is the fastest way to divide a 16 bit number by 24 in machine code.
Derek
[ This Message was edited by: dmsmith on 2004-09-24 20:04 ]Invisible loading screenI can't remember how this is done (I did it years ago but can't remember how). When loading a screen$ from basic you can see the lines being display…
... how).
When loading a screen$ from basic you can see ... />
you can set the screen black so the lines are ... lines still show up while loading.
How do you ... are loaded (using basic, not machine code).
Thanks.Hidden piccy in Cylu loading screen.I was looking at the eggs at [url="http://www.cl4.org/comp/spectrum/eggs/#"]http://www.cl4.org/comp/spectrum/eggs/#[/url] and I was wondering about …
... was wondering about the Cylu loading screen ... the little doohickies* on the ... Jabba person who pops up in some of the screens ... is ...Loading Screen ProblemI am putting together files on a tape that my game needs. The problem that I have is that after loading the "loading screen", the image is spoilt by …
... have is that after loading the "loading screen", the image is ... remaining file that contains the code and data.
Is ... messages appearing ? When the loading screen was designed there was ... bit of space in a more central position within the loading screen.+2 ramdisk - access in machine codeHow can you access the ramdisk in machine code? I've got a +2, and it seems the ramdisk has never been properly utilised. It would be a handy little…
How can you access the ramdisk in machine code?
I've got a +2, and it seems the ramdisk has never been properly utilised.
It would be a handy little area to use.
Thanks in advance,
--
catFirst steps in Z80 machine codeI never got into machine code much back when I had a speccy, as I didn't have any development tools at the time. The only machine code I'd previousl…
I never got into machine code much back when I ...
The only machine code I'd previously done in the past was ... to the basics of Z80 machine code.
I ... don't laugh at the code, I'm a Z80 ... learning the basics of Z80 machine code, seems like loads of ...Seeking loading screen for Egghead 5To celebrate his forthcoming 18th birthday, Egghead will be taking a Mediterranean cruise on his yacht with a few friends. As with most coming-of-ag…
... ;)
Most of the code has been written and the ... all those screen layouts, organising patrolling nasties and putting in hidden ... rooms. The game needs a loading screen and ... s any consolation. And a screen named after you, if ...help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
I have started to code my first machine code program, a simple roadrace ... the pixel scrolldown routine in 40 Best Machine Code Routines for the ZX ... ,22527 ;point to bottom right screen
ld de,22271 ... we've done a whole screen
jp scrlcount ;otherwise ...Loading screen vs. in-game graphics mismatchFollowing [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20589"]this thread[/URL], which games had the worst loading screen compared to…
... games had the worst loading screen compared to their in-game graphics, and ... URL]. Whenever I see that loading screen, I can't help but ... ] had quite decent loading screen...
And in the opposite direction, ... like that got such nice loading screens...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…
... do all the above within machine code.
I'm really ... a link
[CODE];
; machine code microdrive file loader
; proof ... load code file "1"
;
ld de,16384 ; unpack loading screen
Loading screenI was reading the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=26571"]loading screen thread[/URL] and was a bit insipired. I went to…
... showthread.php?t=26571"]loading screen thread[/URL] and was ... We have" additional material "loading screen". Only that and hit " ... no loading screens - in fact I remember the LOAD "" CODE invocation. ... specifically asked for titles using loading screen - or did I ...Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... send midi-signals by machine code, while Basic is too ... screen is in bank 5, whilst the shadow screen is in ... Green"]Port 7FFDh behaves in the same way ... special
Bit 1: In normal mode, ignored.
... . OUT #7FFD, (23388 ) - in 23388 the previous value is ...Z80 Machine Code Question...Hi Folks, I know not strictly a BASIC question but I have started to learn Z80 machine code - 25 years too late! :smile: I have been reading a book…
... have started to learn Z80 machine code - 25 years too late! :smile ... is intended to paint the screen black (nothing complex) and looks ... I get is FFh in the first screen address i.e. it ...IF and control flow in machine codeHi everyone, Basic has a nice control flow like if statements. How can these be done in machine code since i cant find anything thanks
Hi everyone,
Basic has a nice control flow like if statements.
How can these be done in machine code since i cant find anything
thanksccompletly baffeled machine codeHi everyone, BEFORE you ask i have not asked help for loads of problems i have recently now encountered and i figured the problems out myself, hones…
... a character at this position in machine code. But thats where the problem ... starts. its done in a really difficult way. I ... cant just plug in the x co because the screen has a ... be a point on the screen grid in machine code. For example, 5,4 ...Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…
... while I was learning z80 machine code.
Anyway will kick ... /> or $4000/256 ; 7t - bring in screen pixel memory start
ld ...59 animated loading screen reveals in 15 minutesHere's the product of a lazy Sunday listening to Test Match Special :) 59 of the more interesting loading screen reveals in 15 minutes - I've doubled…
... :) 59 of the more interesting loading screen reveals in 15 minutes - I've ... teletexty music - really am not in the mood to select and ...Dizzy, Prince Of The YolkFolk: Alternate loading screen?Hi, Please have a careful look at the new Dizzy remake teaser (seconds 0:42-0:52) [youtube]LGW53914gDk[/youtube] That certainly looks like a [b]*r…
... completely different from the loading screen currently shown at Infoseek ... picture of the first loading screen matches the cover illustration ... /af1/PAIPORTA/spectrum/ERBE/Code-Masters9.jpg[/img][/url ... the loading screen shown at the video have been used in the ...
