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Sinclair Basic Vs PascalWith the rise of the structured programming movement (Jackson et al) was it wise to put the Basic programming language into the Spectrum. By this ti…
... the introductory compiler text I read in school. The code emitted ... a basic block. I've read a paper or two on ... libraries are pretty easy to port since most routines are passed ... -
You know how the 128K was faster than the 48K Spectrum?Regarding how the Spectrum 128K ran at 3.54 MHz rather than the 48K's 3.5MHz, was this difference enough to be an advantage? If not, then surely Sinc…
... clocked a lot faster, the ULA was pretty much tied to ... Z80 and added a control port to enable a double speed ... -
You know how the 128K was faster than the 48K Spectrum?Regarding how the Spectrum 128K ran at 3.54 MHz rather than the 48K's 3.5MHz, was this difference enough to be an advantage? If not, then surely Sinc…
... Z80 and added a control port to enable a double speed ... sounds a bit out of ULA's clock range), I'm ... -
Spectrum won't load data when warmI've got an interesting observation. I put iPodLinux onto my iPod and got TZX files playing back as the proper audio waveform. I also removed the vol…
... time of my issues I read all the posts about dodgy ... nightmarish predictions of a faulty ULA chip and in the end ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... friend to add an external port to my +2, so I ... moment before my brain had read and understood the message, the ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... very positive features (keyboard, joystick port, cassette deck) though that enhanced ... a major redesign of the ULA and without some extra CPU ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... trivial modifications to the existing ULA.
* Two atari ...
* An IF1 compatible network port but again driven by hardware ... .
* Add adjustable ULA interrupt so that it could ... be synced with the ULA interrupt by some mechanism.< ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... trivial modifications to the existing ULA.
[/quote]
We ... [quote]* An IF1 compatible network port but again driven by hardware ... />
[quote]* Add adjustable ULA interrupt so that it could ... be synced with the ULA interrupt by some mechanism.[/ ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... the Interface 1 - could this port have been used to attach ... a major rework of the ULA (or would it)? Another option ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... the Interface 1 - could this port have been used to attach ... a major rework of the ULA (or would it)?[/quote]
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... raises the price $5 per port due to increase in board ... as a youngster -- I rarely read the manual and instead wondered ...Easy one first, Tai Panby Mikro Gen Steve and me has one
... me that it was a "port that didn't make it ... way? I'd love to read those.. :)divIDEAnyone heard any info on these (IDE interface for Speccy) ? I emailed the people responsible for selling these here in the UK, and heard nothing bac…
... with LaesQ and happen to read the WOS forums more than ... it (it has a through-port apparently, which is nice), but ...External Speccy CommunicationHow does a speccy communicate with the outside world ?? Do you have to have the interface 1 for serial communications ( rs232 ) or are there other p…
... X-Modem or similar to read from microdrive and write down ... microdrive to the RS-232 port and beyond.
Thanks ...Spectrum Screen Memory MapWhat's the advantage (mistery?) behind ULA's spectrum screen memory interpretation? 6144 bytes divided into 3 blocks, 2048 bytes long. if you want t…
... minimal at cost of complicated ULA logic. And af course, all ... 't matter much since the ULA must read and output a scan ...+2 ramdisk - access in machine codeHow can you access the ramdisk in machine code? I've got a +2, and it seems the ramdisk has never been properly utilised. It would be a handy little…
... ; e = out byte to port $7ffd for destination
...
ld a,(hl) ; read byte
exx
out ... ; e = new destination output to port $7ffd
. ... a' = source out byte to port $7ffd
.bytectr ...Adapt Electronics RGB adapter - pinoutHello! I've managed to buy this thing: [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220025560362[/url] . Do anyone maybe have a pinout…
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I read that if RGB via the expansion port is used ...Firefox (new thoughts)Maybe more people would use Firefox if there was a version for the Speccy! [code] 10 PRINT AT 2, 2; "Press F for Firefox or I for M$IE" 20 LET K$=IN…
... mention flimsyness of the ZX81 port.
[quote]
That ... but I daresay I've read the [I]Guide[/I] more ...Firefox (new thoughts)Maybe more people would use Firefox if there was a version for the Speccy! [code] 10 PRINT AT 2, 2; "Press F for Firefox or I for M$IE" 20 LET K$=IN…
... mention flimsyness of the ZX81 port.
[/quote]
Still, if ... ? How many times have you read it then? (Let's not ...Spectrum Composite video connections?Is it possible to modify a standard 48K spectrum to give composite video output? In my experience i have found the quality of the picture out of the…
... 't mean that, I've read somewhere that there is a ... symptom of a faulty ULA chip that causes the paper ...USB Flash DriveHi all, Does anyone know if it possible to build a USB interface where one can connect a USB Flash Drive to? These are also called "Memory Sticks" i…
... .[/quote]
I can't read what is said here [URL ... what looks like a USB port.USB Flash DriveHi all, Does anyone know if it possible to build a USB interface where one can connect a USB Flash Drive to? These are also called "Memory Sticks" i…
[QUOTE=dasteph]I can't read what is said here [URL=" ... what looks like a USB port.[/QUOTE]
It is ... USB connector...
Is it port then?
I saw there ...Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca
... . As far as I have read in the past ?maybe I ... edge detected though the $FE port is a transition from low ...Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca
... . If we ever try to port them from TRDOS to TZX ... is perfectly available from the ULA, and some loaders will use ... bit in $FE port, or even another weird port in order to ...Election of the new maintainer of the TZX formatHi folks, the topic says all, let the discussion begin :) Luca
... . As far as I have read in the past ?maybe I ... edge detected though the $FE port is a transition from low ...48k one dead, one dodgyhello everyone. I have 2 48k spectrum +'s (the one with the QL case). Both boards have issue 3B on them near the speaker. The first will power up …
... (its not).
I read in another thread and I ... ) or the pair near the ULA (BC184). Equivalents of these transistors ...Nooooo my speccy died!??!!Hi! I am quite sad. :( Tonight I got a kempston interface so I rushed home to try it on my spectrum+ The edge connector of the interface was narrower…
... 's just that i've read much about spectrum+ repairing and ... in the hardware checking tape (ULA, ROM, RAM) inclucing the Z80 ...48k one dead, one dodgyhello everyone. I have 2 48k spectrum +'s (the one with the QL case). Both boards have issue 3B on them near the speaker. The first will power up …
... />
Sorry mate, when I read the above, I assumed you ... you'd therefore mistaken the ULA for the CPU.
Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …
... activate EPROM (ROM) chip for read:
/RD, /MREQ and ... & A15 = low (that's ULA's /ROMCS ).
But ... 27) must be high for read. It requires inverter, or workaround ...ZX spectrum as a PC usb keyboard?One of my commodore brained friend showed me an interface which converts the keyboard of c64 to a standard usb keyboard. I quickly searched this for…
And what about connecting ZX ULA chip on AGP port to getting 'real' Spectrum colors and graphic?
