-
CIRCLEHi, I'd like to draw a circle x,y,r using the BASIC-ROM subroutines. I've put x, y and r onto the calculator stack and used CALL #232D and RET. I g…
... , no?
The Complete Spectrum ROM Disassembly (p201) states:
[URL="http ... returning to BASIC or calling ROM routines if IY is used ... -
divide off switchI have a divide 57c. I would like to have an off switch so I don't have to remove the card if I don't want to use it. Eg to access 128 basic etc. …
... see it as a ZX Spectrum model selector. This is the ... control disk (i.e.: a +3e ROM) it still will be able ... ; if you have a +2e/+3e, the computer can load/save ... -
Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
... interest
The Complete Spectrum ROM Disassembly
[url]http://www.worldofspectrum ... -
Best book for learning assembly programming on ZX Spectrum?Hello, I'm currently learning BASIC programming from ZX Spectrum BASIC programming manual. After I learn BASIC, I would then like to learn assembly…
... , but the lack of Spectrum-specific information makes it less ... book that focusses on the Spectrum. He also wrote an ... book called Super Charge Your Spectrum, although I'd think ... book for budding Spectrum developers is The Complete Spectrum ROM Disassembly by Ian ... -
Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.
... 'd have to read into ROM disassembly to get an idea, but ... or a diagram of the Spectrum's screen layout.
Change PAPER and BORDER colours from machine codeHow do you go about changing PAPER and BORDER colours from machine code? I've forgotten the system variables for border and paper.
... 'd have to read into ROM disassembly to get an idea, but ... learn assembly program starting from ROM disassembly isn't an easy task ... to figure out about how ROM printing routine (RST 16 or ... book about assembly in ZX Spectrum (eg. Tony Baker's book ...I have returned! This time with no tape problems!Hello all. Some of you may remember me from about a month or so ago with this little spawn of satan... :lol: [IMG]http://www.ridgedpixel.co.uk/proj…
... =sr_st_price-asc-rank?keywords=zx+spectrum&qid=1408958665&rh ... =n%3A266239%2Ck%3Azx+spectrum&sort=price-asc-rank ... =sr_st_price-asc-rank?keywords=zx+spectrum&qid=1408958665&rh ... ]
I see the Rom Disassembly is 2499.50 new and ...Multi Multiface: the projectI posted some updates on Facebook yesterday about the development of the Multi Multiface, but here is the right place to share all technical findings…
... /> Planned features:
- rom page with bios (after start ... example will possible connect external +3e rom...
- full compatibility with ... - all ram features
- rom switching 16kB mode for flashing ... modes kempston (on other spectrum models than +2a/+3 ...2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... ) [Link]
* ZX81 SP ROM Disassembly [Link]
* Video on ... />
Misc
The Spectrum Client (TCP Client, requires SpectraNet ... char set finder for the spectrum)[thread]
by spider
2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... [Link]
* Spectrum Show episode 41 [Link]
* ZX81 SP ROM Disassembly [Link]
* Video ... /> Misc
The Spectrum Client (TCP Client, requires SpectraNet ... set finder for the spectrum)[thread]
by ...Good first books to read?Hi all, I've never posted here, but have tried to search for an answer to the following question. What are a few good starter/beginner assembly…
... /zxspectrum/CompleteSpectrumROMDisassemblyThe.pdf"]The Complete Spectrum ROM Disassembly[/url]Good first books to read?Hi all, I've never posted here, but have tried to search for an answer to the following question. What are a few good starter/beginner assembly…
... /zxspectrum/CompleteSpectrumROMDisassemblyThe.pdf"]The Complete Spectrum ROM Disassembly[/url][/quote]
I ... differ. Trying to understand the ROM is a terrible way to ... ?pageid=397755"]How to Write Spectrum Games[/url].2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... b]Eurogamer article: New ZX Spectrum out 24th August[/b] < ... spectrum-out-24th-august"]Link[/url]]
* [b]ZX81 SP ROM Disassembly ... forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
spectrum"]thread[/url]]
...Peeking the contents on screen? How?You will have to forgive me for growing up on the C64, but I know I can peek the location of a character (1024 is top left from memory) and the peek …
... UDGs.
The Complete Spectrum ROM Disassembly mentions this on p128: "Note ... .dropboxusercontent.com/u/17590589/zx-spectrum-udg-screenstr-demo.bas"]here ...Rom routine for pixel addressDear all, Having my bi-annual 'lets try machine code' project again and have come up with a problem with the pixel address rom routine at 8874. …
... on p116 of The Complete Spectrum ROM Disassembly for more info.
Also ...2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
* ... br />
[b]The Spectrum Client[/b]
[i](TCP ... -cmi-library-4-zx-spectrum-sampletracker"]link 1[/url]]< ... -adventure-game-for-the-zx-spectrum"]thread[/url]]
by ...2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
* ... br />
[b]The Spectrum Client[/b]
[i](TCP ... -cmi-library-4-zx-spectrum-sampletracker"]link 1[/url]]< ... -adventure-game-for-the-zx-spectrum"]thread[/url]]
by ...2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
* ... br />
[b]The Spectrum Client[/b]
[i](TCP ... -cmi-library-4-zx-spectrum-sampletracker"]link 1[/url]]< ... -adventure-game-for-the-zx-spectrum"]thread[/url]]
by ...Spectrum Screen RAM layoutHi there The spectrum screen layout is rather odd. It seems to be arranged into 3 256 byte groups. If I have an x (horizontal) coordinate (from…
... />
Also there is the ROM routine PIXADD at $22AA
Spectrum ROM Disassembly[/url]
by Dr Ian ...2015 Games ListHi, this is the thread I use for the 2015 Games List. Note: Due to forum update policies, the latest version of the list will always be found somewh…
... .org/forums/discussion/51841/spectrum-show-ep47"]forum link[/ ... /forums/discussion/50612/zx81-sp-rom-disassembly"]Link[/url]]
* ... -cmi-library-4-zx-spectrum-sampletracker"]link 1[/url]]< ... adventure-game-for-the-zx-spectrum"]thread[/url]]
by ...Simple bit of machine code not working [SOLVED]ishHi all. It's late and I'm tired and I have no idea why the following piece of code wont display a little smiley face [code]ld hl,udg ld (236…
... " (Orange Book), and "The Complete Spectrum ROM Disassembly" (book or PDF) for more ...are there any assembly games listings with mnemonics?hi, i would like to get hold of some assembly games listings (that i dont have to type in (copy/paste,etc)) with mnemonics (i think thats what u cal…
... be the Logan/O'Hara "Spectrum ROM Disassembly" book.Any noob friendly speccy dev tutorials?I mean, for a person who never used ANY kind of assembly, let alone Z80 one. Would be good if focused on making a game. Additionally, I want your …
... Machine Code on your ZX Spectrum by Toni Baker
The Complete Spectrum ROM Disassembly by Dr. Ian Logan and ...Any noob friendly speccy dev tutorials?I mean, for a person who never used ANY kind of assembly, let alone Z80 one. Would be good if focused on making a game. Additionally, I want your …
... against reading the The Complete Spectrum ROM Disassembly book. Although the book itself ... is excellent, studying the ROM is a terrible way to ...An odd floating point error. Avoid!While working on the revival of my old game ([url="http://www.worldofspectrum.org/forums/discussion/53207/new-game-2016-revival-a-yankee-in-iraq-1992…
Much appreciated! The Gosh Wonderful ROM [i]does[/i] indeed provide a fix the above bug, and a bunch of other things. Just tested it. (My bedtime read for the past week has been [i]The Complete Spectrum ROM Disassembly[/i].)The Complete Spectrum ROM Disassembly - SkoolKittedAs [url="http://worldofspectrum.org/forums/discussion/52745"]indicated previously[/url], I've recently been working on converting Logan and O'Hara's …
... />
New version of the Spectrum ROM disassembly released. No bugs page (yet ... [url="http://skoolkid.github.io/rom/buffers/sysvars.html"]system variables ...Interesting crashesI had an interesting Spectrum crash last night, I think it was trying to tell me something's wrong or it's had enough of my games! Or it could be dow…
... it's stored in the ROM - the final character isn't ... hex" according to the Complete Spectrum ROM Disassembly)
I think this saves ...Top Five Spectrum Reads for HolidayHello all, I was wondering what your top five Spectrum books would be for holiday. I thinking preferably of books from the 1980s but you can pick…
... . O'Hara, 'The Complete Spectrum ROM Disassembly' is a surprisingly good read ... learn machine code on the Spectrum
A. Berk, ' ... Robotics and Interfacing on Your Spectrum' is something a bit ...
D. Thomassen, 'Advanced Spectrum FORTH', as also a bit ...Key repeat weirdness with EI & IYI finally (after 35 years!) decided to write something a) for 48k speccy b) in z80 assembler. It's been over 20 years since I've written anything in …
... it) as per The Complete Spectrum ROM Disassembly (p201)
EXX
[/code ...Speeding up PRINT code in ROMHi Folks, I seem to recall that someone stated the PRINT command is rather slow because it has to handle screen and printer printing - is this cor…
... , if you look at the ROM routine it replaces (e.g ... Logan and O'Hara's "Spectrum ROM Disassembly"), you'll see it is ... />
Also, looking at the Spectrum ROM Disassembly, I see Sinclair have a ...
