-
Was learning machine code a waste of time?I remember computer magazines from the mid-1980s often had features about using machine code, which I duly skipped over as it seemed totally impenetr…
... had features about using machine code, which I duly skipped over ... me no one uses machine code any more, so does this ... learning the meaning of apparently random strings of numbers and letters ... -
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…
... codes are accepted.
[code]
; ---------------
; 4x8 font ... br /> ; --------------------------------
;
; Based on code by Ian Beardsmore from Your ... offset data
; the total number of bytes occupied,
; held ... -
New Discussion Group? Sinclair Machine Code/AssemblyHello, What do people think about whether we should have a new discussion group relating to machine code for Z80? We have a Sinclair Basic discussi…
... discussion group relating to machine code for Z80? We have a ... but not one about assembly code/machine code for the spectrum.
There are a number of postings in the forums ... simply and fast in machine code.
For me, Z80 ... -
First 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 ... br />
The only machine code I'd previously done in ... the basics of Z80 machine code.
I wrote ... don't laugh at the code, I'm a Z80 ... machine code, seems like loads of registers and a vast number of ... -
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…
... 'm looking for a machine code routine which will
clear ... 's display
(or any number of rows or columns) . I ... bytes).
However, this machine code routine, when I tested
routine which clears a specific number of lines
(which may ... -
+3dos BASIC Headers - Char and Number ArraysHi. I'm almost ready to release the first beta of "3eExplorer" my utility for extracting files from a +3e HDD/CF image. It's actually going quite w…
... a problem with Character and Number arrays. As far as I ... stored in a .TAP file...[CODE]+3 BASIC header:
0x0f ... /> 0x15 : Parameter2 Low
0x16 : ??[/CODE]
If that's the ... -
What I hate about computers and/or video gamingYesterday I spent approximately four months (subjecively that is, objectively it was around two to three hours) fixing my mate's PC. I won't bore you…
... , or seem to mod at random, or just haven't got ... company capable of burning XBox code onto compatable DVDs, then the ... Carmageddon 1). There's any number of bad ports on all ... .
* The ever declining number of user definable options (in ... -
Code execution logging (Spin and EightyOne)I'm currently trying to analyse a piece of code by looking at the path taken through it while executing it. The easiest way for me to do this is to u…
... analyse a piece of code by looking at the ... an emulator that logs what code is being executed, and ... then run the code to completion (the aim ... remove parts of the code that never get run).< ... instructions (where "n" is a number much lower than I need ... -
It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... button is pressed on some random downstream device, it doesn't ... a CPLD as opposed to random logic, or a PAL/GAL ... a system call number on the stack, so code such as:
would result in the code in the real ROM entry ... -
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 ... /> and this is the assmebly code (now edited to show comments ... /> pop bc ;recover count for number of times we're repeating ... br /> endroutine
ret
[/code]Your help is much appreciated ... -
problem using FRAMES to generate 'random' numbersI realise the pros use bytes from ROM to get their random numbers, presumably because they want to use FRAMES to synchronise the printing and avoid s…
... from ROM to get their random numbers, presumably because they want ... zigzag until I added some code to print the road edge ... />
and the relevant code is
[CODE]
randommove
ld ... z, moveleft
jr moveright[/CODE] -
Elite Commander Editors / CreatorsI've noticed 3 of these in the WOS database. One is MIA and the other two have bugs I've discovered and don't edit everything. So, I was going to ma…
... managed to do that with random poking, as educated poking doesn ... out so far...
[code]0-9 - Commander name (followed ... /> 13,14 - Rating expressed as number of kills (word)
All this loads into 53332 :)[/code]
The numbers ... -
Random access, file sizes and more.A few days ago Aowen mentioned that random access to saved data is not a problem. Here are my thoughts, doubts and suggestions regarding this subject…
... days ago Aowen mentioned that random access to saved data is ... ?
Are partitions and machine code the only way to deal ... all rely on using machine code to read data from a ... need to learn complicated machine code (yes, I know, I know ... -
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…
... />
All the code files have a single character ... link
[CODE];
; machine code microdrive file loader
code
err_sp equ $5c3d ; ... $5ced ; line number
copies equ $5cef ; number of copies made ... -
Adjusting your code for screen refreshingOk, I'm aware that I should know it already after writing 5 Spectrum games in machine code but interrupts and screen refreshes were always my weaker …
... 5 Spectrum games in machine code but interrupts and screen refreshes ... perform HALT command in machine code, the computer will wait ... some calculations which need some random time to execute. So when ... random for me .
Is there any way in machine code ... -
Req' Help with Random numbersHello all, im new to the forum, i hope im putting this in the right place ... I would like to ask a question in the hope someone will be able to as…
... can choose at random,(or at least as random as spectrum basic ... is the choosing of every number in that range and once ... a number is picked it would no ... -
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 …
... when it encounters a line number >= $40nn there's no ... (23627)-machine_code_length:
LOAD "filename" CODE mcpos,machine_code_length:
PRINT "machine ... /> STOP
9999 REM *** MACHINE CODE STARTS
AFTER THIS LINE ... -
printing a fixed number of decimal placesDoes anyone have a bit of code that will print a number with a fixed two decimal places? The example below should demonstrate the function, but the S…
... a bit of code that will print a number with a fixed ... the decimal point.
[code]
7000>FOR a ... print the trailing zeroes)
[/code] -
Machine code issue...Hi Folks, My trials with MCODE continue and I am stuck. I wrote the following program in BASIC to simply POKE an attribute byte in to a "box" on th…
... screen.
[CODE]1005 REM Attribute Block Routine ... br /> RETURN [/CODE]
This code works perfectly and is ... C9 RET ;RETURN to BASIC[/CODE]
When ... have been through the code a number of times and ... -
Converting a decimal number to binary...Hi Folks, Been thinking about ways to convert a decimal number to 8 bit binary and came up with the following: [CODE]100 REM ----------------------…
... ways to convert a decimal number to 8 bit binary and ... with the following:
[CODE]100 REM --------------------------
110 DIM ... CLS
140 INPUT "Enter number ( -
Help with random numbers......Hi all, wonder if anyone can help me... sort of a novice here ... I have been trying to write a simple ish basic program to compare random sets of n…
... ish basic program to compare random sets of numbers
number in each set.
... 6 numbers that the random generating routine (that i ...
10 REM PUT RANDOM NUMBERS INTO X ARRAY
130 REM PRINT RANDOM NUMBERS IN SETS OF ... -
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…
... 140.gif[/IMG]
[CODE]
/****************************************
sp1 ... br />
// C and SP1 code libraries are added here.
// The maximum number of sprites is 10.
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…
... a routine for storing machine code between PROG & VARS, ... Toni Baker's "Mastering Machine Code". This enables any attendant m ... when it encounters a line number >= $40nn there's no ... ):
REM INSTALL MACHINE CODE... with GO TO 9161
How much space does a number take?Hi Folks, Could someone please remind me how much memory a number takes up in a BASIC listing. For example, if you had: [CODE]100 LET a=3000[/CODE…
... me how much memory a number takes up in a BASIC ... had:
[CODE]100 LET a=3000[/CODE]
does the ... to store the floating point number
4 bytes to store ... mark the end of the number
so in total ...number padding functionI wrote a number padding function in BASIC a while ago, but when I came to want it again I couldn't find it, so I've done this enhanced [url=http://w…
... string rather than a number. The examples below should ... returning with a "6 Number too big" error but ... 2A as well.
[code]
DEF FN p$( ... USR address: REM n=number,l=leftpad,r=rightpad< ... ,any) := "1.2345679E+8"
[/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…
... BASIC routine (below) to machine code, but to no avail.
random heights
After several ...The Hobbit, Empire, and an interviewHi all, I've got a little article on the making of The Hobbit in the latest issue of Empire magazine (we've run a huge feature on the film). I inte…
... of turning that into Assembler code - quite a mental transition of ... succeeded in making it truly random, and the non-player characters ... I've noticed is the number of people contacting me has ...Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... underlying colour alone:
[CODE]
;
; Output of Messages ... /> .msgfir defm " PRESS FIRE "
[/CODE]
On entering the ... the time. But occasionally, at random, it does one of two ...Adding TAP file contents to a Spectrum +3e DOS PartitionHello my fellow WoS'ers, This thread is a companion to a great little guide from a fellow AmiBayer [B]mnjnurney[/B] you can view his thread by [URL…
... typing its number and pressing return / enter.
[code]
10 ... a hard disk we have random access, so we need to ... a hard disk we have random access, so we need to ... /> 50 LOAD "ELITE.CDE" CODE
[/code]simply, like the SCREEN$ loading ...Unspecified Custom Loaders IdentifiedThis thread specialises in loaders which are considered to be "Unspecified custom loaders" according to the Infoseek engine. These loaders (after som…
... colours before loading future blocks (CODE) in nonstandard colours
... program are SEPARATE headerless CODE blocks recorded at normal ... m not just picking out random custom loaders (NOT protection ... ]x[/i] being the variant number).
[b] ...
