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On a 48K issue 6A......how can i isolate the 32K block? I want to test if there is any fault on the 4116's , leaving the 4532's out of the equation. Will removing the …
... tracks of upper ram just in case something was interfering with lower ram ... -
"Lost" 48K expansionToday I dug up my Speccy after more than 10yrs of inactivity. I bought it as a 16K in 1983, than I had expanded to 48K and never had problem. Until t…
... a Spectrum (given the case of a chip that's ... two sets of chips: lower memory (address 16384 to ... 4116 RAM chips, and upper memory, from 32768 to ... byte of upper RAM) which indicates either upper RAM is ... 8 chips for lower memory and 8 chips for upper memory - ... -
Questions about the Emulator Cartridge...First of all, which models of the Timex Spectrum does it work on? Secondly, does it contain game files, or does it just enable you to play PAL Spect…
... at a lower address than 2068 basic can allow (2068 basic has a ... TS one is a British case/inlay/tape but does not ... -
Time travel...Time travel is a very, very interesting concept. Surely everyone has dreamt of going back in time, to see how things used to be, or of going into the…
... Hawking).
[quote]
Basic physics states that matter cannot ... immediately go back further and change reality so that that incident ... travel back in time in case they cause trouble. Or ... br />
Well, in that case, who would have killed my ... -
question about RST 10hhow do you set the position of the text when using 'RST 10h' to print to screen?
... will work, your pointer in BASIC are still doing the RANDOMIZE ... to the upper screen and not to the border (lower screen) without ... -
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
... spare parts...) I had to change the data bus resistors from ... "leaking" from the lower bank to the upper bank, and from the ... -
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
... spare parts...) I had to change the data bus resistors from ... "leaking" from the lower bank to the upper bank, and from the ... -
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
In which case the lower bank's output was overpowering ... 1 threshold is for the upper RAM... if it's TTL ... ohms.
In which case, you could also fix the ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... necessary. Because of the change this also means these ... />
The second change is that the default memory ... has to be moved lower than what is shown ...
The third change is that each character cell ... graphic definition. In this case, in the calls above, ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... before returning to basic. If you ... break;
case 0x14:
attr = *(++ ... break;
case 0x01:
flags = 0x01 ... we do change colour of ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... ascii string (similar to basic's STR$) and writes ... of string "s". The basic equivalent to this would be ... random number generators like basic's RND and C' ... You will find the upper part of these ranges ... case we'll be using the amp2[] array containing upper ... -
text routineI want to write an adventure in basic, and instead of a writing out a description for each location i want to use a kind of text compression routine …
... out whether characters should be lower or upper case, so it doesn't ... have to all be completely lower or upper case ... - since a 5 bit encoding is single case). -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... " that beeps higher/faster at lower altitude or higher speed?
b) "Solar wind": it could change very gradually and affect the ... time?
In either case, I will at some point ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... on memory) and this change will most likely mean the ... gfx_riverPlotColour;
break;
case TERRAIN_STORE:
default:
memcpy ... anything normally done in Sinclair basic, but you should be ... -
Help!! Newly installed 500gig hard drive installs as drive H ?Like i say in the title, windows installs fine but when windows boots up, the 500 gig hard drive is shown as drive H and when i try to install a prog…
... the upper or lower panes there should be an option to change the ... -
Help!! Newly installed 500gig hard drive installs as drive H ?Like i say in the title, windows installs fine but when windows boots up, the 500 gig hard drive is shown as drive H and when i try to install a prog…
... the upper or lower panes there should be an option to change the ... -
At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... died shortly after too (bad lower RAM). Before I repaired it ... (immaculate, with fully working keyboard) case. The dead person's Spectrum ... key case, since the rubber key machine's motherboard has bad upper ... -
At the Carboot sale today.Today at the carboot sale I picked up An Acorn Electron -I see these all the time, An Official Branded BBC Micro Datacassete Recorder - I'v…
... died shortly after too (bad lower RAM). Before I repaired it ... (immaculate, with fully working keyboard) case. The dead person's Spectrum ... key case, since the rubber key machine's motherboard has bad upper ... -
Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…
... to leave enough space for BASIC?
[/QUOTE]
z88dk ... /> # you'll probably want to change this if you're retargetting ... /> {
switch (operation)
{
case 0: // pattern fill
// sp_PFill ... -
Fastest Baud Rate On A Loader ?Following on (sort of!) from the thread about the best loading.... Which game(s) had the fastest (highest baud rate) ? I seem to remember a couple …
... , but if that's the case, then I can feel a ... audio outputs and have an upper bw limit probably around 18kHz ... push the instantaneous frequency content lower so that it is blocked ... the tape player. Likewise the upper bw limit (I think the ... -
To Winston , diag-interface.Hello to all, first, sorry for my english i'm from spain and my english is very poor. Wiston, thank you very much for your great work "diag-interface…
Looks like both lower and upper memory are duff - the tests ... are showing up bad upper memory, too.
The ... any other pin, just in case I've missed a stray ... on all the sockets in case there's a bad connection ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... />
[quote]
In this case the analysis code would immediately ... /> Another option is to simply change the board to indicate aligned ... [/CODE]
In this case the PRINT statement could be ... /> I will write a small BASIC test program to find out ... -
Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?
... ROM. You've got two basic ways of doing it - either ... suppose that is the common case. (The Beta 128 will apparently ... can be paged into the lower 16K at any one time ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... , when RESTORE is executed, the BASIC interpreter has to scan the ... POKE statement, this kind of change would probably make it slower ... this case!
I can't imagine any other change to ... -
Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…
... that most Basic versions detect this special case either as ... definitions and redefinitions. Sinclair basic maintains a clean variable ... numbers. Another less than optimal BASIC implementation.[/QUOTE]
change made on the Spectrum ... -
The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... the upper 8 bits of the 16bit xfer, rather than the lower ... two LS245's on it, change them to HCT ones, try ... -
splib2 from ROMI'm trying to generate IF2 ROM games for ZX Spectrum 16K using z88dk + splib2. So far I've managed to create a new crt0 file and to generate valid RO…
... course, if you plan to change UDG definitions for characters during ... be in RAM. In this case maybe it makes sense (after ... Sinclair char set in the basic ROM.
[quote]
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... circuit board. Instead the ts2000 case was used for a small ... to be confusion between Microsoft Basic and CP/M, with the ... customized. Sinclair's approach has lower up-front cost, higher unit ... game machine into a computer case and Sinclair was putting an ...another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... circuit board. Instead the ts2000 case was used for a small ... to be confusion between Microsoft Basic and CP/M, with the ... customized. Sinclair's approach has lower up-front cost, higher unit ... has high up-front cost, lower unit cost and higher density ...
