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Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... the PC using the mic port. My first programming problem ... ) just because +3DOS is reading data into it... I processed ... the Z80 code and x86 port control algorithms. I already ... over control but the AUX port seems to be RAW. ... using Amstrad 128K AUX port to PC 9 PIN ... -
SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…
... . The most common way of reading this in machine code is ... , (31)" instruction but beware - the port number would be a 16 ... 8 bits of the read port number (RPORT) and breaks if ... -
How do you do it?What's your favoured method of games creation? Basic programming? Assembler? Basic Compiler? AGD? Etc etc. I currently have a management game written…
... crowd at school).
Reading Raffaele Cecco's log in ... an impossible task trying to port such a game to the ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... GAL also disable reading from port 7FFD (ZX ignore reading and return floating ... /OTIR will fast). Adressation of port 7FFD can be used as ... -
What model next ?Hi All I already have two 48k rubber kyed 48k Spectrums and a Grey +2 What to get next. ZX Spectrum + ZX Spectrum 128 Toast Rack ZX Spectrum +3
... GAL also disable reading from port 7FFD (ZX ignore reading and return ... ZX128+2A/+3)
- reading of port #7FFD is ignored (same ... but only port #7FFD is enable (port #1FFD not exist). Port #7FFD ... (software not crash after read port #7FFD). All ports with ... -
Carmageddon port crashes and burns?Why did no one post on here that the DOS classic Carmageddon was being remaded to run on Windows (well, a coder was writing his own version of the ga…
... /> *gets coat*
already, just reading the posts here it puts ... 't remember? It's a port of C1 rather than C2 ... -
Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…
... read (nearly) 16k bytes from port 191 as fast as possible ... at address 32768
; Reading will start when D4 goes ... instruction
LD BC,191 ; Port to read from
trig ... -
Why doesn't my loop work?Can anyone help me understand why my loop doesn't work? Is it to do with how DEC HL affects the flags? [code] ; Read 32k bytes from port 191 as fa…
... sign flag (the "IN A,(port#)" doesn't according to Z80 ... - why not?
LD C,port#
trig: IN A,(C ... ) ; bit 7 read from (port) sets sign flag
JP ... ; wait while this bit keeps reading zero (=positive)
LD (HL ... -
KempAY and Spectrum +3 queryIve been looking at the KempAY interface. It's the AY38912 chip on a board, which also doubles up as a kempston joystick interface all done in GAL ch…
... be if it responds to reading the AY ports because then ... lose the RS232 and AUX port. (and if you are going ... -
KempAY and Spectrum +3 queryIve been looking at the KempAY interface. It's the AY38912 chip on a board, which also doubles up as a kempston joystick interface all done in GAL ch…
... be if it responds to reading the AY ports because then ... lose the RS232 and AUX port. (and if you are going ... -
Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... just I/O port 247, but on careful reading of Dr. Logan ... /F1 helps to synchronise before reading in a byte by using ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... like an RS-232 port. Or Parallel port. Or USB of course ... , a TCP socket, RS-232 port or whatever. The idea is ... and get bytes from (actually, reading is slightly more complex because ... -
Opus composite video and joystick portIve had it apart and had a good look around and cant for the life of me see whats wrong, if the joystick is selected in a game(kempston) the characte…
... up then. Onto the joystick port, does anyone here think I ... />
However i see from reading the manual in the archive ... -
ZX Spectrum +3 Query...Hi all, As common, I brought down my Spectrum from the attic the other day to have another stab at getting it running. I knew from the past it was a…
... fault.
I remember reading on WoS something about a ... that plugs onto the Z80 port at the back of the ... -
SAVEing without waiting for keypresshello, here's question for y'all. is there a way in BASIC to bypass the "Start tape, then press any key" prompt when SAVEing an array? sorry if it'…
... of data to the MIC port immediately, without the lead-in ... scope of this article", but reading the program notes in the ... -
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
[QUOTE=BiNMaN;524939]from reading your work on the 128ke ... ZX128+2A/+3)
- reading of port #7FFD is ignored (same as ... -
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... ZX128+2A/+3)
- reading of port #7FFD is ignored (same as ... -
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
... ZX128+2A/+3)
- reading of port #7FFD is ignored (same as ... -
New platform game: Sid SpannersHi all, here is my Christmas present. A new platform game (well, more of a mini-game really). [url=http://java.cms.livjm.ac.uk/homepage/staff/cmspc…
... understand how it works than reading ASM IMHO. So when you ... course you can then always port your C programs over to ... -
Maketzx...Whats the state of play?Been out of the whole emulation bit for...a while :) But, back in the saddle, ready to transfer some more tapes.....except...maketzx doesnt seem to w…
... are read on the EAR port to represent a logical 1 ... ROM loaders that require the reading program to know and implement ... SCREEN$ in the file by reading the underlying bytes being transmitted ... -
Fuse: what do you want to see?An open brainstorm. If you had a team of programmers working on [url=http://fuse-emulator.sf.net/]Fuse[/url], what would you tell them to work on? …
... execution at 0x0008, that reading from port 14+256*[I]n[/I ... ] over the parallel port, that bit 5 of port 2 is the ... of the address bus when reading from port 10 controls the printer ... as paging, and breakpoints on port I/O, but perhaps they ... -
DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... with DIVIDE PLUS then reading from joystick port work correct. DIVIDE ... KEMPSTON (thanks to incorrect kempston port decoder) collide with data ... if Z80CPU read from joystick port)
b) fix hardware ... extra memory = not write to port 23 = old kempston work ... -
Tape preservation toolsIn the latest MakeTZX thread of doom several people said that it would be good to have active development of tape decoding tools. I needed tape file…
... data being written to by reading from port 14+256*n where ... busy status being read from port 2, and the strobe line ... -
Maglaxians in the java emulatorWhen I try to play Maglaxians in the archive using the online Java emulator, I can't get the game to start, when I press ENTER. Does anyone else exp…
... usual problem, the game is reading the port $fe and not masking ... the game code where the port is read.
I ... bit of playtesting. The keyboard reading routines in this game are ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... could be loaded via serial port in under 2 seconds.
reading serial port is done through port 0xf7. bit 7 ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... is equipped with RS-232 port. There is no hardware support ... code - reduced to writing and reading correct 4 bits (RX,TX ... -
So what is the best Spectrum?I've had a search and even though i can remember a similar thread somewhere I'll twist it a bit. Whats the best "unmodified" Spectrum? (modification…
... slowed down by the keypad reading code in the interrupt routine ... (like the built-in Kempston port), you've still got around ... -
enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…
... any emulator that correctly does port #FF and timing (including contended ... on machines without proper #FF port[/i]
it's a ... , engine itself doesn't care. port #FF used for crt ray ... English (as you can see reading my posts). -
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…
... planning to do is buffered reading like this -
1) when ... /> ;; ------------------------------------------------------------
;; read byte from serial port at 115200-8-N-1 ... -
Sinclair QL ProblemHi there. I purchased recently four Sinclair QL for a not small amount of money. Two german and two english, they are mixed: British or European conn…
... set this way... I remember reading that you couldn't use ... or the 6128's drive port.
