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Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…
...
The ROM routine will re-enable interrupts for you. This way ... ROM's ei and your di back in your im 2 routine ... -
Mouse on +3I have a standard PC serial mouse connected thru a BT/Serial Adapter to a Sinclair QL; I bought QL and accessories from a net-friend some year ago. I…
... mouse that I've seen for the Spectrum (the old ones ... because the only rom routine in the +3 rom is for sending data out ... -
Start Tape, Press any key...Hi, I'd like be able to save (program or data or code) using the save "whatever" command, but I want it to start recording immediately, rather than …
... keypress it calls the input routine for the keyboard.
This ... up to WAIT-KEY which waits for a keypress and ... jumps to an address called KEY- ... can skip the waiting for a key and keep the system ... the 'Pr(e)ss any key' message. This text is ... -
Next step in MIDI to AY conversionI e-mailed the author of MID2AY with a few questions. While I wait for a reply, I would like to expose my ideas. There should be a better way to conv…
... to write a MIDI player for the Speccy! We simply don ... sure there's enough memory for that. if you have a ... got plenty of space left for what would be a fairly ... . In fact there is a rom routine to send the midi data ... -
FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…
... just for saving an running programs then nobody needs saving ROM ... ROM Changes and therefore you can change the NMI-1 routine for ... developers) this possibility to save ROM as well.
... just copied routines from the ROM ...joke...
... -
FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…
... just for saving an running programs then nobody needs saving ROM ... make ROM Changes and therefore you can change the NMI-1 routine for ... developers) this possibility to save ROM as well.[/QUOTE]
... unmodified copy of the Spectrum ROM and make changes from ... -
Alternative ROM thru DivideSorry if this could be a stupid question: I know the Divide+ can load Interface 2 Roms into internal memory by using Residos and the %INSTALL comman…
... pages in the standard ROM during the ROM CRC check. It also ... /> I'm considering a diagnostic routine for the Spectranet that will listen ... -
oh my the old days :)programming on the speccy again here is a routine i remember of the top of my head to load screens or code without a header wow 5 Clear 27999 : Re…
... starts to load, but just for a split second, and then ... header and then call the routine).
Am I being ... flag to signify whether the rom routine should be LOADing or VERIFYing ... -
Atic Atac vs Sabre WulfIf we read a review of Sabre Wulf in Crash (July 84) we can see: [I]"It's basically a jungle version of Atic Atac but much more involved[/I]" [I]"S…
... it's apparently down to key optimisation code:
"However ... Ultimate's games for reading keypresses. While this routine has been found ... left out updating the keypress routine for whatever reason. Just because Sabre ... -
Do we actually love the spectrum?Hi As my title says " do we actually love the spectrum " OR is it just a childhood/nostalgic thing? I personally don't love the zx spectrum but hav…
... makes debugging a lot easier). For playing games, I'll ... equivalent of "The Complete Spectrum ROM disassembly" for Windows, and if you ... and documented. Making hardware for a Speccy is still fun ... /> As for the versions, I prefer the good ol' rubber key or ... -
Running TZX off an IDE drive? Or streaming from a NAS?Hello. I know about the DivIDE project, and about the ZX Ethernet project, but not how far they've come or what they can do. So: 1. If I have a squ…
... of hardware). The software for the microcontroller would be ... out the Spectrum's ROM) and pages in its ... own ROM to the lower 16K ... the normal ROM tape loader.
For the Spectranet, ... have to write a routine for each different type of ... -
Bouncing BallsPfrrt, I am back from lunch, playing the first raw version of BOUNCING BALLS It is very addictive! As stated here [URL]http://www.worldofspectru…
... any meaningful strategy other than 'click somewhere in the middle of ... then would be a circle routine for the explosions.
You ... that tune is just begging for an AY version.
New BASin features - what do you want?Ok, this poll is just a quick method of gaining the measure of what you lot expect from BASin. Go vote! Which ever gets the most votes at the end of…
... as well.[/QUOTE]
For an equal tempered 24-TET ... already does the logarithm work for you. For other equal tempered scales ... be nice to have scope for tweaking the individual note pitches ... will be passed to the ROM routine as these often leave you ...Keyboard routinesI'll ask here first - since this must be a long-ago solved problem, and hopefully I can avoid re-inventing the wheel... I need a keyboard routine th…
... have now realised that the ROM routine is actually quite good. Unfortunately ... IY register and $5Cxx area for something else.
I've ... to get a good keyboard routine. There is no other way ...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 …
... NZ,InversionFill1 ;Wrapped around to ROM?
RET
InversionTestRoutine ... NZ,InversionTest1 ;Wrapped around to ROM?
RET
... />
;Use embedded custom PRINTING routine for this program
QUICKPRINTSTR
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 …
... /> TAP should be enough for what you're doing, unless ... for whatever reason the type-in
had a save routine ... that wasn't using the ROM routine which ... need to find/save for a code block if ... length wasn't specified. For instance you could have ...New Spectrum Game - AlbatrossityMerry Christmas, and all that. Here's a little Christmas present for Spec-chums everywhere. Albatrossity is a crazy golf game which doesn't take it…
... you a few extra shots for the next hole, and you ... the Spectrum is that the ROM routine at 949 is one of ... either side of the sound routine. Doh!
If anyone ...Thieves School - Demo availableHi there! The demo of Thieves School is available in [url]http://ws.vtrbandaancha.net/En/TS/TS.htm[/url], Downloads section. It allows to choose one…
... magazine, or just take the ROM routine and alter the parameters), but ... hardware, I decided to go for standard. It's a ... typical dilemma: compatibility vs sofistication... for a two-blocks 128K + ... I love the Speedlock loading routine!. Thanks for the feedback.Thieves School - Demo availableHi there! The demo of Thieves School is available in [url]http://ws.vtrbandaancha.net/En/TS/TS.htm[/url], Downloads section. It allows to choose one…
... point (i.e. using standard ROM routine), my question about a good ... a "standard" approach, at least for the "main" version of the ...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…
... assume that fpprint uses the ROM routine PRINT-FP followed by a ... $50
DEFB 000H ; mantissa for a half
also
for 65536 :-)
then stack ...+3 BASIC and RST 8I've been working on adding commands to the BASIC interpreter, in a similar style to how Interface 1 does it (catch the RST 8 error trap). This works…
... error handlers. ROM3 is invoked for running any 48K commands and ... actions when calling any standard ROM routine other than RST10, RST18 or ... RST28 function available for this purpose, which calls the routine in ROM3 ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... /> Now this is the equivalent for
10 PRINT "Hello, ... text2' which uses the controlcode for AT (=22) and the coordinates ... follows.
As for the printingroutine:
The BASIC ... the character.
The ROM-routine excepts the character to be ...Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …
... )
stackbc equ 2D2Bh ;16K ROM, stacks BC onto calculator
ROM, 'LET' statement handling routine
cheat equ 1731h ;16K ROM code ...Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …
... and jump into the MAIN routine, leaving the channels in place ... shadow ROM would have to contain initialization code for the main ROM, leading for ... extra opportunities for bugs or ...The Complete COBRA Disassembly (Joffa's!)Now that I've seen this thread about Skool Daze / Back to Skool disassemblies I've remembered I started an ambitious project quite a few years ago: …
... make a kind-of-library routine to something as mundane as ... realise there was actually a ROM routine to do this for you!The Complete COBRA Disassembly (Joffa's!)Now that I've seen this thread about Skool Daze / Back to Skool disassemblies I've remembered I started an ambitious project quite a few years ago: …
... make a kind-of-library routine to something as mundane as ... there was actually a ROM routine to do this for you![/QUOTE]
ROM routines!
Kick everything ...can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
... simple line with a the rom routine , but i just cant ... . D holds the sign for y, E holds the ... s happening.
For example, to DRAW -50,20 ... /> POP HL ;restore HL' for safe BASIC return
EXX ... to save HL' register for successful exit to BASIC, ...DivIDE QuestionHi all, I've been trying to work out how the DivIDE works and after reading and re-reading the DivIDE programming model document by Zilog I think it…
... the return address for the RET instruction.
Your routine at 0x0008 ... .asm which calls the ZX ROM routine, do_rst8 also in trapdispatch.asm ... typical pattern for calling ROM routines when the Spectranet ROM is paged in ...
