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Just wrote my first useful working Speccy BASIC program in years...A nice UK National Lottery number generator. And not just any lotto number generator either. This one generates 8 lines of 6 numbers without replace…
... 's my version:
[CODE]10 PRINT "Why don't ... far better random number generator than the Spectrum has.": STOP[/CODE][/QUOTE]
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
If you want your code to work fast, you must ... />
To create random stars you need pseudo-random number generation routine. There ... many ways how to generate random number, from using ROM content or ...St. DragonIn this game: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0004801[/url] I think "Saint Dragon" should be added as an alias, and the MSX re…
... armed just with Basic viewers, random Pokes and Randomize USRs. Yes ... strange method. No knowledge of machine code whatsoever. Just pure luck. :grin ...BASin r14d - Final bugfix for the r14 seriesOk, there's not a great deal to "show" here, as most of the work has been going on "under the hood" so to speak. And there's been a [i]lot[/i] of wor…
... you POKE a floating point number?[/QUOTE]
The final ... of Toni Baker's "Mastering Machine Code On Your ZX Spectrum" covers ... the absolute value of your number left or right to get ...So you want to make a cardgame......but you haven't got a good deck to display. Well here is a fully relocatable routine that will do the job for you. Place the code anywhere in me…
... use any random number generator like this one:
[code]DO_RND
;OUT: A or B or C - random byte ...
[/code]
I do not use BASIC for random generators ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
Yesterday, I also made a machine code memory tester specifically for 16K/ ... test to determine if the machine is 16K or 48K and ... a quick glance of the code - and quits immediately if ... popular emulator, modified to simulate random faulty RAM.
This ...Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... to determine if the machine is 16K or 48K ... test. Use a pseudo-random number generator to fill memory ... passed the inversion and random fill tests, set the ... then read back some number of minutes later to ... 4164 (or whatever your particular machine has).
...Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... [/I] - no header, displays a "number array" message (whatever that is ... . A quick glance at the code didn't reveal anything immediately ... does not seem like valid machine code to me! -seems more like ...TAP filesI'm trying to figure out how to make TAP files and am none the wiser. Tried downloading Taper, got it working but it was one of the unfathomables. I …
... a start number and end number of where there's machine code loaded into ...TAP filesI'm trying to figure out how to make TAP files and am none the wiser. Tried downloading Taper, got it working but it was one of the unfathomables. I …
... a start number and end number of where there's machine code loaded ... are no explicit - LOAD "..." CODE address,length - statements in the ...
If there are multiple CODE blocks then the problem is ... as Z80s. Reconstructing the CODE blocks into a composite TAP ...Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…
... messing aroud with machine code is that your code may not be ... data will overwrite your program code.
One soultion ...
And another is:
[CODE] di ; disable interrupts
ld ... or, even worse, seemingly random and very hard to track ...Cro S2008Hi everybody!!! I hope this is right thread? :-) I want to share with you my new project. I call it ?S2008?? The idea was to build Spectrum48K clo…
... does have extensive BASIC and machine-code API support, so it isn ... divIDE, but still a significant number.
Developers working on ...[BASin] Bug report and question[B]1. Bug report:[/B] BASIC Editor behavior I'm using a variable to store the contents of the BC register. But the BASIC editor works strangely. I t…
... right - if you specify a number on its own, it's ... [i]assembly[/i] and not machine code. Yes, n is 8bit, but ...Defender of the crownI have checked recently the Spectrum version of this well known, great game and the Spectrum version is strange. [url]http://www.worldofspectrum.org…
... big. This method simplified the code.
The size of army ... last battle, and from a random number.
This works until you ...Need a pointer to using the spectrum calculator from MCHi all, Can anyone point me to a good resource on using the spectrum calculator stack from machine code? I need to work out the number of seconds f…
[QUOTE=zx128k;333340]MACHINE CODE CALCULATOR
by Toni Baker< ... MEM values, even overlaying a number array!
Nice ...z88dk Help neededI'm starting my tests with z88dk from a very simple example from a tutorial in speccy.org. It works fine but when I make the smallest modification t…
... start of main:
[code]
heap = 0L;
... sbrk(40000, 10000);
[/code]
The heap statement ... -- you can count the number of sprites and sprite characters ... of stdio is not 100% machine code and using a single printf ...Loads of games cheapHello all I am currently clearing out several hundred duplicate Speccy games from my collection. Starting Monday 16th March will be ebaying these a…
... also includes the Picturesque machine code monitor utility. A number of you requested ...Your best Type-ins gamesType-ins games bring me great memories. A whole evening typing a program from a magazine, after some hours I typed RUN and... an error message! After…
... . My Dad read me the code. Very nostalgic.
[url]http ... .
The Your Computer machine code games were impressive if lacking ... .zip[/url]
The number one most useful utility for ...Why does the speccy make you hear loading?Always wondered this, of all the 8-bit 'puters I have owned, only the Speccy makes you listen to the loading sounds from the tape, why??? I assume it…
... attributes, and just generic game code loading - which is a bit ... differences between machine code and BASIC loading. Both have a seemingly random pattern ...Sinclair BASIC compiler for PC?Boriel's compiler is very powerful but it isn't meant for Sinclair BASIC, and the old compilers in the archive have their limitations: BASIC listing …
... original Sinclair BASIC). Also the machine code, basic area, etc. (LOAD ... basic and compiled code.
compiled code sets some string ... or integer then "call" basic line number ... will cause return to machine code. as STOP command raises ...Help loading OPUS data block ?Hi folks, A while back I obtained a Daton Software Card Games compilation which will be in the next Vault update: http://www.worldofspectrum.org/inf…
... it use LOAD *1;"OPUS$"CODE: RANDOMIZE 40000: LET z=USR ... RANDOMIZE 40000 merely sets the random number system variable, which the decompressor ...z80 program to BASIN?I have a BASIC program with UDG:s loaded in a z80 snapshot file. I would like to edit the program with Basin, but I wonder what must be done before…
... I can start a machine code program with RANDOMIZE USR ... returns a result. Your machine code program can talk to ... code) RANDOMIZE is pretty harmless. It will reset your random ... t be quite so random any more, but it ... . The ROM manages the machine stack, which "grows" ...It may come to nothing but...[IMG]http://homepage.ntlworld.com/richard.chandler3/SpudDS.jpg[/IMG]
... of instructions in machine code. Very much like a CODE block on the ... . You can't run Speccy machine code on an x86 chip (well ... file is executable, but the machine code contained within would be pointing ... limit, low limit on the number of bots in deathmatch, a ...Very basicI found the wos site a few months ago when searching for solutions to my broken spectrum, that i had dug out of storage and was learning basic on. Si…
... lead to something called Spaghetti Code, which can make tracing your ... of certain sections of your code. This alleviates the problem a ... a bit of a pseudo-code that will help laying out ... .
1. Generate a random number between a and b. Call ...Very basicI found the wos site a few months ago when searching for solutions to my broken spectrum, that i had dug out of storage and was learning basic on. Si…
... ;385548]
1. Generate a random number between a and b. Call ... like this:
[CODE]1. Generate a random number between a and b ... " key.
9. Else stop.[/CODE]
Here line 5 does ...DSK to TZX?Is it possible to convert a DSK disk image file to a TZX tape file? If so, then how? And is there a utility out there that does something like that? …
... to arrange BASIC, BYTES (CODE), ARRAY and SPRITES back ... instance SCREEN$ comes before CODE when loading a game). ... a disk drive uses "random access" i.e, the ... order of SCREEN$, BYTES (CODE), ARRAY, etc to locate ... of a piece of machine code that is stored on ...Tape-Disk Copy +3I seek convertor tape to disk +3. I have DTCONV by Pentacle, but this program has bugs.
... beginning. Clear one number down for the games ... /> CLEAR 29999
LOAD "" CODE
SAVE to ... That will save out the machine code to +3 disk.
machine code back, and run ... and change it to LOAD "CODE" CODE
Finally ...some debugger in emulators that is able to brakpoint when a mem address is accessed ?Is there a debugger (disassembler) available in some emulator that is able to stop (breakpoint) when a particular memory address is accessed ? For e…
... (c), a", the port number is C - but the ... a 16-bit port number! The spectrum itself ... machine code is the "IN A, (31)" instruction but beware - the port number ... of the read port number (RPORT) and breaks ... as demonstrated next:
Code:
UNTIL 49152 IF ...Speccy games programmingI've got a question. Where games written in pure machine code or was it a level higher with Assembly language being the choice? I always thought it…
... who did actually write in machine code directly as binary. Not big ... a bunch of machine code bytes. I had a fair number memorized as ... assembler.
A real machine code programmer would be the human ...
