... way to read input (eg from the keyboard) or write output ... commands, sprite commands, commands for reading the keyboard/joystick/mouse, etc. ... (8-bit signed value -128 to 127), unsigned char ( ... " can occur without a warning from the compiler.

So ...

... reading Alvin's and dom's post regarding the ... } else {
blank_counter = 128;
scroll_mode = 1;
install_next_char ... = 0;
blank_counter = 128;
scroll_mode = mode;
from the wrong offset, but ...

... meant. I didn't mean port them to C.
[/quote ... be for z80 targets but reading about it didn't make ... results are still not had from the compiler. Doing so within sdcc ... keep emphasizing, is where the performance comes from. What is needed is ...

... suggested to me to try port scanning... and it worked![/QUOTE ... for figuring out how the ?Source worked. The next version of Fuse ... as IN? PEEKing from 11182 can't toggle the paging, or you ... , 0x1f is the Kempston port and also the Beta 128 command port, so I ...

Thanks Chris.

The fact there are no special ... engineers) were aware of the refreshing via reading DRAM. I'm sure ... that mechanism as ULA reads from all 128 rows several times during ...

... engineers) were aware of the refreshing via reading DRAM. I'm sure ... that mechanism as ULA reads from all 128 rows several times during ... Vectron ;-)

2) The RFSH occurs during T3 and ... fetch. T1 is contended if the instruction fetch is between 0x4000 ...

... 's ready to start reading data from the disk ? but the data must then ... be read by the Z80, using the ... mapped I/O instead of the port I/O ? PEEK and POKE ... transfer data to/from a device without having the Z80 transfer each ...

... do a 16-bit port read to read the keyboard. His example ... but you likely cannot see from the draw code which 2d game ... engine encouraged a generic keyboard reading routine than a 2d game ... up with a decent keyboard reading routine sometime in its spectrum ...

... generated by the port decode, but everything else is taken straight from the Z80 ... (RD, WR, A0, A1). The timings work ... been a problem, only reading.

The logic analyzer shows something ...

... music.

Reading from bit5 of the EAR port and rendering a UV ... program.
1) Analysing the ear port and processing its input into ... />
Interpreting the time taken for the EAR to transition from 1-0 ...

... , positive integers only. Even the simplest implementation of printf available ... I would think using itoa from stdlib to get a ... to out individual chars to the serial port in a loop rather than ... tightly coupled, but the rest of the standard C libraries shouldn ...

Yeah, that's what I mean by Multiface 128 style. (Although there's a couple of wrinkles in my implementation because some of the through lines must pass via some logic on the way to and from the through port).

Thanks for the info. I haven' ...
...through SPIN emulating the various machines I've found ... whilst others, most notably the original 128, return mostly 255, but ... 1000 or so reads from the port, and checking to see ... that none of the highest 3 bits get ...

The expansion port is very clean, i had ... for the 128 heatsink and +2 grey so i get the sound from the sound ... socket and not from the RGB out ... RGB cable for the +3 so the sound it extracted from the RGB socket ...

[QUOTE=Mousey;253215]Reading between the lines, it seems ... a recent port of [b]Jetpac[/b] from the Speccy version ... to the Atari 8-bit ... spot on[/i] apart from a speed loss what ... i]crippled[/i] the game in the process... a lot ...

... port is available on our PC, we could use the RS232 port on the ... +3. Since the Sinclair's serial connector ... Serial-to-DB9 adapter and others have bought such adapter from the ... br />
If the COM port stops being an option, I ...

... port is available on our PC, we could use the RS232 port on the ... +3. Since the Sinclair's serial connector is ... own Serial-to-DB9 adapter and others have bought such adapter from the ...

[QUOTE=snigfarp;259149]Apart from the CoCo, of course (ironically its ... with a real serial port, real keyboard (almost identical to the CoCo3 keyboard ... ), it used the full 64K from BASIC (RAM ...

... more thinking of the lines of reducing my port footprint from 4 ports ... to 1 port by having all the CPLD ... /O (because, well, it's reading or writing buffers which are ... how much overlap you get from the rising edge of MREQ to ...

... it's short. Converting from basic to C in general ... to do is alter the subroutines to port the game. Just put stdio ... )="..." so the assignments are done directly rather than READing them in ... at the start of the program. It ...

... 'm pretty sure it was reading one of your old posts ... things...

The SE roms still have the 128 editor - You basically ... use the SE roms - for example Pippo won't load from tzx ... - but some of the effects will be missing (The nice full screen ...

... 'm pretty sure it was reading one of your old posts ... things...

The SE roms still have the 128 editor - You basically ... use the SE roms - for example Pippo won't load from tzx ... />
Ahh, yes, ofcourse. The SE has the 128k editor and everything ...

... redirect serial data from the 128K and later models to the com port, ... could this be used to establish 2-way communication between the ... a serial cable connected between the com port and the 128K's serial port, ... we could see the emulation of the TS2068 in ...

... redirect serial data from the 128K and later models to the com port, could ... this be used to establish 2-way communication between the ... only designed to capture output from the port(s) - mainly so ... we could see the emulation of the TS2068 in future ...

... thread.

Why drop the OUT ? Surely you need to ... tell the AY that you wish to read from Register 7 before reading ... read from the control port, not the value port. (I misread the response as removing the 1st ...

... that the decoding of "port 0x7ffd" is different on the +3 than than the 128 ... bit 1 of "port 0x1ffd" (port decoding again), the TR-DOS ROM somewhere ... 5 of the page number comes from bit 5 of port 0x7ffd, although ...

... can mount the disks and let the emulated spectrum ... of them from +3Dos?
[/quote]
the mformat program ... on the +3e project's website ... data transfer software around for the serial port?
[/quote]
...

... (the-sinclair-shop) that sells those plugs for serial port on ... Sinclair-QL-Spectrum-128-2-3-Serial-Plugs-10-Pack_W0QQitemZ160251851925QQihZ006QQcategoryZ50223QQcmdZViewItemQQ_trksidZp1742 ... Sinclair-QL-Spectrum-128-2-3-Serial-Plugs-10- ...

... just specifies the latter, and the port will need converting from a string ... there's anything to receive) from the buffer and returns it - ... you'll end up blocking. Reading the entire buffer with INKEY$# is ... be very slow compared to reading it all in one ...

... feeling that this was designed from a 6502/BBC Micro mindset ... 74LS32, which is easily obtainable from Maplin or equivalent.
< ... this board uses one line from the 6821 PIA as a joystick ... reading and writing. Simply any port access with A5 = 0 will dump the ...