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48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…
... tried to load the memory test program and it still didn't ... not come up with the program name.
However, I tried ... -
48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…
... managed to get the memory test program to load.
I had ... follows.
Lower memory test failed after a few passes ... .
I then ran the test again a couple of times ... ]
The upper memory test I also ran a few ... -
Issue 2 Upper Ram, Loading & ResettingI have a 48k Issue 2 Speccy and for the life of me can't track down what the problem is with it. I initially thought that some of the uppe ram ic's w…
I downloaded Zorns RAM tester program a while back thinking that ... 2 and run the ram test program again with the same results ... RAM IC's, run the test program again and ended up with ... -
Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…
... file as a result. The program will still run because the ... *_BSS.bin)
The test program should still run flawlessy if ... -
48K Not booting properlyBought another faulty spectrum from Ebay. This one, when you turn it on, it looks like it's going to boot OK, but when it gets to the point where it…
... tried to load the memory test program from Zorns website but I ... the first part of the program loading.[/QUOTE]
The symptoms ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... the font names in the test program is "ff_ao_Dutch" (fzx font, andrew ... well hidden in the demo program but if you have a ... -
48K Not booting properlyBought another faulty spectrum from Ebay. This one, when you turn it on, it looks like it's going to boot OK, but when it gets to the point where it…
... attempted to load the memory test program and it worked this time ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... the font names in the test program is "ff_ao_Dutch" (fzx font, andrew ... -
Strange keyboard port reads on 48+Hi all, I don't know whether it was already discussed (I also searched forum, but there are too much of results searching "48k keyboard" so I didn't…
... (with 74HC32, just for a test) A8 with /IORQ before keyboard ... "phantom 0" has gone. original test program (the first one, without skipped ... -
Strange keyboard port reads on 48+Hi all, I don't know whether it was already discussed (I also searched forum, but there are too much of results searching "48k keyboard" so I didn't…
I tried the latest test program on all three machines, none produced any addresses when trying the Caps+9 test under any circumstances.
(I didn't try with the membranes swapped for obvious reasons.)
B -
Strange keyboard port reads on 48+Hi all, I don't know whether it was already discussed (I also searched forum, but there are too much of results searching "48k keyboard" so I didn't…
... ;814327]I tried the latest test program on all three machines, none ... when trying the Caps+9 test under any circumstances.[/QUOTE]so ... , which is normal, as the program lies in upper ram (so ... /> so I created that second program where "IN" instructions are only ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... /> You will find a test program in the "test" directory. There are three ... tests of the same program using ... 't see it in this test program, fzx terminals are windowed, meaning ... -
This is how a DivMMC EnJOY! comes to life![url]https://www.youtube.com/watch?v=XFjUFmS1XJE[/url]
... /> Flying Shark was also my test program, when I tested Spectra interoperability ... -
Retroleum SMART Card InterfaceHi guys, Over the last few months I've been designing an interface board for the Spectrum 48 - seems to be all the rage :) It started off as simple …
Ordered one a few days ago. Looking forward to giving it a go especially the diagnostic test rom feature :) Might help me get to the bottom of the problem with my bothersome Issue 2! Fingers crossed -
ZX Resets when loading programs?Hello, I have a weird issue with my new ZX Spectrum issue 2 16K. The ZX is in great condition, BASIC works and the RAM Diagnostic PEEK 23733 reports …
Pretty sure this is a lower memory problem, any way you can change the 4116 chips, or change the positions? Zxzigg has a memory test program try running that first. -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... updated. If you try the test program and notice anything wrong, do ... -
Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…
... after I sent someone a test program to run which did exactly ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... showed up in a test program showing a 3d plot ... its size. Yet the program was fractionally slower than ... lot in this particular program. Floats are slow on ... practice people / machines generated test vectors, kind of like ... states in a sw program is huge and ... -
Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…
... the $4000-$7FFF range (a test program using the beeper like mentioned ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... showed up in a test program showing a 3d plot ... its size. Yet the program was fractionally slower than ... lot in this particular program. Floats are slow on ... i.e. if a program produces completely different answers ... how parts of a program interact. I have seen ... -
New version (v0.31) of ZX DiagnosticsHi all,<br><br>Just wanted to let people know that I've released a new version of the Spectrum Diagnostics into the wild.<br><br>These were originall…
... />
I not show Your test program ?
With digiboard all is ... -
Dead SpectrumHello guys, I've just bought a dead Speccy 48k (Rubber Keyboard Issue 3 board). Basically, when powered on it initially appears to boot up ok, but in…
... is possible to program a EPROM with a test program and with a ... -
Spectrum +3 blinking yellow/blueI received a +3, which only gives a yellow/blue blinking border during initialization. Pressing BREAK when powering on does not work, neither does a …
I was afraid it´s faulty RAM - thanks Amstrad for removing the RAM sockets on a +3...
Yes Brendan, I do have ZXC3 (and ZXC4) cartridges. Would love to try your test program. My address is shown on my web page. -
1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…
... it be more scientific to program something to generate a frequency ... />
Yes, the beep.tap test program is a primitive attempt to ... -
I recapped my 128K toastrack, installed stereo kit and detached audio from video, but...Hello fellow forumers! I'm seeking for help: I've finally decided to change all electrolytic capacitors of my 6U (with all Panasonics 105oC)... Af…
... with Ben's little BASIC test program...
Oh, I also checked ... -
Faulty Issue 1Hi all, thought I'd document my efforts in getting another speccy working. I've never done this before so please bear with me... I recently took a p…
Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…
... , he was never asked to test the +5V rail. As the ... /EPROM, a ROM based RAM test program should confirm this.
z88dk v1.99A Release Candidate[b]Z88DK VERSION 1.99A RELEASE CANDIDATE[/b] Download from: http://nightly.z88dk.org/Releases/ The release candidate will be available for te…
... 4xd4:~> zcc +zx -vn test.c -o test -lndos
... -IDESTDIR/libsrc/_DEVELOPMENT/target/zx -lzx -LDESTDIR/libsrc/ ... -IDESTDIR/libsrc/_DEVELOPMENT/target/zx -crt0=DESTDIR/libsrc/_DEVELOPMENT ... /target/zx/zx_crt -z80asm-sections
...
