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48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…
... of variations on using a test ROM.
The ... contains a RAM tester program[/URL] can be used ... at soldering, and can program EPROM or EEPROM chips, ... you can program the chip, then modify ... br />
The ROM test program (there are at least two ... -
Interface1bis and alternate roms?I was wondering if it's possible to put alternate ROMs on the Interface1bis? I'd like to try using the Gosh Wonderful ROM without having to make any …
... be possible to load a test program (ROM) into the IF1bis so ... Spectrum hardware tests, like the test ROMs. In other words, I ... not want to load a test program from the IF1bis. It must ... the time of building a test interface like the one that ... -
Interface1bis and alternate roms?I was wondering if it's possible to put alternate ROMs on the Interface1bis? I'd like to try using the Gosh Wonderful ROM without having to make any …
... be possible to load a test program (ROM) into the IF1bis ... hardware tests, like the test ROMs. In other words, ... not want to load a test program from the IF1bis. It ... time of building a test interface like the one ... could be used to test machines that have no ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... problem: after the diagnostics, the test program says it is paging in ... shows that when the diagnostic program is doing Spectrum ROM CRC ... . But at the end of program, ROM stays disabled. Anyway the ... -
48k Stops loading and resetsI've just fixed the problem I had with my Issue 2 Spectrum only showing 16k memory by replacing all of the upper ram. With that job done I've done a …
... problem: after the diagnostics, the test program says it is paging in ... shows that when the diagnostic program is doing Spectrum ROM CRC ... . But at the end of program, ROM stays disabled. Anyway the ... -
48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…
... is only a first, simple test.
I take it ... use a RAM test program. If a tape loaded test does not work ... -
Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
... are we actually testing the timing/speed?
If there is ... . This then enables the CPU timing/speed to be checked. But ... .
For a true timing test, a real external clock is ... -
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…
Run the RAM test program found at [URL="http://zx.zigg.net/zxsoftware/"]http://zx.zigg.net/zxsoftware/[/URL] and post its output here. -
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, but nothing I tried it ... -
Timing_Tests-48k_v1.0 results...Hello All, I ran these [URL="http://www.zxspectrum4.net/op_timing.php"]tests[/URL] on my emulator and some of the tests failed.. so I tried it on a …
... /> As far I know this test is not for emulators, but ... emulator, which passes both Timing test and Woody test suite, with zero errors ... , SpecEmu 3.1 can pass Timing Test with 100% accuracy, but as ... -
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,…
... container types especially will make program development a lot easier. The ... Timmy's adventure code. The test program above is creating three different ... -
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 ... -
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,…
... +zx -vn -clib=new test.c -o test
// zcc +zx -vn ... -startup=4 -clib=new test.c -o test
#include
test program above no longer pauses when ... -
Heatsink for ULAHi, My Speccy 48k issue 4s starts to get temperamental when it's been on for a while. Machine itself is fine but loading gradually becomes more unre…
Could be flaky RAM either?
Run the RAM test program from [URL="http://zx.zigg.net/zxsoftware/"]here[/URL] for both lower and upper banks for a while and see if it reports any issues.
B -
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 ... -
Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …
That test program assumes that the contended RAM ... -
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 ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
[QUOTE=Jerri;817782][QUOTE=Einar Saukas;817774]I just run a simple empirical test (plotting randomly on screen) to compare the random generator algorithms mentioned here:
[CODE]10 FOR f=0 TO 20000
20 LET y=USR 32768: IF y -
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,…
... /> Here is a test program for you:
... /> /////////////////////////////////////////////////////////////
// EXAMPLE PROGRAM #1
// 04 ... br /> // this first test program.
/////////////////////////////////////////////////////////////
< ... -
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,…
... so the fix for your program looks like:
... tell you that your original program has problems.
... extern data structures. In your program above, that's "ff_dkud3_Echo" ... declares that symbol to your test program:
[code]
...
