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What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…
... (page 2), and then, from machine code and interrupts disabled, I copied ... operation. My routines for relocating code into pages starts at 25001 ... -
Moving to Oz, need to sell my stuff :(Let me know if you are interested in any of this or ALL of it. Hardware ? Spectrum + 3 including PSU(Keyboard works fine but can?t get the drive to …
... 15 - Hot Rods, Letter, Editorial, Machine Code Tutor, Part 6, Ludcids Part2 ... - Sinclair
Treasure Island Dizzy - Code Masters
Turbo Bike - Alternative ... Software
Vampire - Code Masters
War Machine - Players Premier
War ... -
Recommend a dev environmentIt's been a while since I last wrote any Z80 assembler - must be over 20 years, and since I wrote any spectrum Z80 assembler more like 25 years. I n…
... to run on a genuine machine - not an emulator however I ... let me step through the code at execution? Are there any ... the best way of approaching machine code development these days? (don't ... , working out the hex code for the machine! :-P).
BTW ... -
IM2 calls to player routine on 128k?Hi all, Apologies for being crap, and not even in a funky, skillo kind of way but it's been over 20 years since I last wrote anything in machine cod…
... I last wrote anything in machine code for the spectrum, and indeed ... -
What book are you reading?I'm currently reading Sun Tzus The Art of War. Soon I shall be unstoppable in Laser Squad! I've also got a couple of Z80 Machine Code books on the g…
I'm currently reading Sun Tzus The Art of War. Soon I shall be unstoppable in Laser Squad!
I've also got a couple of Z80 Machine Code books on the go. -
Utility or routine to save/display imagesLet's assume I have an image or sprite at coordinates x,y with w witdh and h height. If I were to store this image, which storage method would allow …
... slow. I also have a machine code routine which can turn an ... to display an image in machine code.
Thanks ... -
New Game: Flynn's Adventure In Bombland (Demo)Hi All Decided to release a demo version of a new game I'm developing. Got to the stage were most of the code is in place so thought it would be goo…
... stage were most of the code is in place so thought ... first ever foray into z80 machine code, something I've been wanting ... -
Anyone Recommend: Assembly Programming Book(s) for the Spectrum?Hello there my fellow WoS'ers =) I am looking for some ZX Spectrum Assembly programming books (as the title suggests) I have just finished going th…
... through two books (Basic Z80 Machine Code and Machine Code for Beginner's [Z80 ... -
TouchmasterI have come across the "Spectrum Interface" by Touchmaster Limited which I presume from the reviews is the interface to connect up the Touchmaster gr…
... />
Envelopes are marked:
"MACHINE CODE LISTING IN DECIMAL"
"BASIC ... -
Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…
... /> , then
SAVE *"b" CODE 35000,100.
On ... with
LOAD *"b" CODE 33000 speccy gives invalid file ... and the execute LOAD *"b" CODE on Spectrum? Will that work ... want is to transfer my machine code (CODE program) raw binary to zx ... -
Storing and displaying attributes...Hi Folks, I have a requirement to store and then redisplay a line of attributes from the screen. For example: 100 DIM a$(1,32) 110 LET line=10 120…
... it require a couple of machine code routines?
Many thanks ... -
Calculating free memory...Hi Folks, I am using the following method to calculate the amount of free memory available to BASIC: [CODE]PRINT 65536-USR 7962[/CODE] Is this the…
Hi Folks,
I am using the following method to calculate the amount of free memory available to BASIC:
[CODE]PRINT 65536-USR 7962[/CODE]
Is this the recommended approach?
Many thanks
Paddy -
Good LOGO program on Spectrum?Does anyone know a good LOGO program on the Spectrum? Ideally machine code, but a good BASIC version will do. I found a few using the search function…
... program on the Spectrum? Ideally machine code, but a good BASIC version ... -
traversing a multi-vertices graph structureWell, I'm on redesigning the route evaluation routine in my Fighting Fantasy utility, as the current method has some intractable bugs in it. The part…
... an entry. However, even in machine code I'd expect that the ... -
McGraw-Hill AssemblerInfoseek (due to a SPEX error) lists the McGraw-Hill ZX Spectrum Machine Code Assembler as both a cassette and a book, whereas it was only sold as a …
Infoseek (due to a SPEX error) lists the McGraw-Hill ZX Spectrum Machine Code Assembler as both a cassette and a book, whereas it was only sold as a cassette. -
Books for learningI used to program on the spectrum in basic way back and love it but i want to go further with it so i wanted to know are there any good books i shoul…
... i should get to learn machine code and such.
Also ... writing something for this amazing machine. -
Barleywood Z80 Simulator LicenceHi All, Does anybody know if it is still possible to get a Licence for this Simulator? The reason I ask is that I'm currently using it to develop a…
... develop a game in Z80 code and would like it to ... is to develop a fully machine code version for the Spectrum (probably ... -
MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…
... /> Trying to write a simple machine code program to hatch the screen ... - it does nothing.
[CODE]21 40 00 LD HL ... NZ,5h
C9 RET[/CODE]
Could someone please ... -
Books for BASICIs there any godo books out there to learn BASIC ? I want to go from begininer to advanced really even though back in the day I used to write games …
... have 2 good books for machine code which I am going through ... -
Text Adventure Designer (my 1st m/c programme)Didn't know whether to put this into games or development, but its still under development, so here it is... I started developing this about 3 years…
... text engine. Its all in machine code. I also developed my own ... and compile it into the code.
This small sample ... -
Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... write a speccy game in machine code....
I've been ... -
Dig dug/Mr Do type gameA few years back my cousin had a battered old tape with a Dig Dug/Mr Do type game on it. It had apples you could push/drop and a snake that chased …
... screen and was written in machine code which leads me to think ... -
Machine code crunching soundI'm looking for a re-locatable subrountine that makes a crunching sound, no border effects(border is black). Anyone got anything suitable?
I'm looking for a re-locatable subrountine that makes a crunching sound, no border effects(border is black). Anyone got anything suitable? -
New ZX-ULA2An upgraded / replacement ULA for the Sinclair ZX81 is now available. The ZX-ULA2 is a direct replacement for the standard ULA used in the Sinclair …
... the M1Not modification - this allows machine code routines to run in the ... /> ? Turbo function, which enables the machine to operate at 6.5Mhz ... -
Can someone shorten this line of BASIC for me?I think if Sinclair Basic had a modulo operation this line could be a lot shorter:[CODE]PRINT AT cy,cx; PAPER 7-((cx/2=INT (cx/2))*(cy/2=INT (cy/2)))…
... could be a lot shorter:[CODE]PRINT AT cy,cx; PAPER 7 ... /2))*(cy/2INT (cy/2)));" "[/CODE]I'm trying to replace ... location at cy,cx. My code works, but it sure looks ... -
Speccy related resolutionsThis year I am going to: Learn machine code Complete Lords of Midnight Make a game with AGD
This year I am going to:
Learn machine code
Complete Lords of Midnight
Make a game with AGD -
Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…
... /> I bought a book (Spectrum Machine Code for Absolute Beginner) and I ... -
Undefine functionHere's a routine to selectively remove variables from the VARS area and reclaim the space. This can be done partially from BASIC already by assigning…
... as variables; eg.:
[code]
PRINT USR undefine,"a","bbb","c ... first TO last: READ z$: PRINT USR undefine,z$;: NEXT z ... last: PRINT USR undefine,z$(z);: NEXT z
[/code]
... passed from BASIC by:
;PRINT USR undefine,"arg1"[,"arg2"...,"argn ... -
Using ATTR detection in machine codeIs there a ROM routine that can be called that reads the ATTR value of a co-ordinate?
Is there a ROM routine that can be called that reads the ATTR value of a co-ordinate?
