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Quick test (2)Could I ask any 128 / +2 / +2A / +3 owners to test the new version of [url=http://www.shadowmagic.org.uk/spectrum/fusetest.tap]fusetest[/url] on thei…
... / +2 / +2A / +3 owners to test the new version of [url ... bus....skipped (b=0x01)
contended memory...failed (0x01)
High ... bus....skipped (b=0x01)
contended memory...passed
High port ... -
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 is meant to test a BASIC's ability ... three tests; a speed test, a test of the quality of ... The random number generator test is virtually useless and the ... fp accuracy test would best be summed ... spectrum's ram is only contended while the display is ... -
Problem with replacing all upper memory with 4164 chipsGuys, i have a problem with the high memory of a 4B issue. At first the board had OKI chips for high memory and one of them was faulty. Since its ea…
... the Spectrum's power-on test is that its a very ... simple memory write and read test, that works even when the ... of the screen is in contended RAM and appears fine. When ... -
Emulator accuracy test?When I first created my emulator it worked fine. But then I found one or two games that had odd quirks. Eventually I found the flag or command that w…
... !
Is there a test program that, if run on ... to have a emulator accuracy test - sort of Acid3 but for ... /> This ain't a complete test, but it's quite good ... to check the accuracy of contended memory and port emulation. -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
What test was that ZXbruno?
... see the transition from non-contended memory access to contentded memory ... .
Anyone got a convenient test?
[i]Edit: What ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
[QUOTE=csmith;346002]What test was that ZXbruno?
... see the transition from non-contended memory access to contentded memory ... the result of the first test. Here's what Fred said ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... .
Anyone got a convenient test?
[i]Edit: What ... putting together a generalised "first contended cycle" finder, but can't ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
[QUOTE=csmith;346002]What test was that ZXbruno?
... see the transition from non-contended memory access to contentded memory ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... putting together a generalised "first contended cycle" finder, but can't ... 't had a chance to test this on any real machines ... -
Which is the most technically accurate Spectrum Emulator?Ok, which is the most technically accurate Spectrum Emulator? Please don't just vote but give reasons why.
... bus... failed (0x00)
Contended memory... failed (0xff)
... |-------------------------------------------------------
| Emulator | Fusetest | Z80 Test Suite | Total |
|------------------|----------|----------------|-------|
| ... -
Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... I know I left the Test option in the code!)
contended RAM, but the +3 mode ... -
Sinclairean A3[B]Sinclairean[/B], a new ZX Spectrum emulator written in machine code for x86-compatible, OpenGL-capable computers. Features: [LIST] [*]Fast machin…
... (i.e. still no accurate contended memory/floating bus emulation.)
test the forthcoming debugger/monitor and ... -
Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]
... will be corruption. Outside the contended zone, there's no need ... issue in practice. Some people test their code on emulators that ... -
48k Timing Tests...Here's v1 of the timing tests for the 48k Spectrum, with a little background [IMG]http://www.zxspectrum4.net/images/timing_test_v1.jpg[/IMG] [URL="…
... failed two tests (12 contended and 27 contended). It had warmed only ... fails on these tests:
Test 3: R=49 SP=23315 ...
Test 12: R=80 SP=56830 ...
Test 19: R=39 SP=56818 -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
I'll write a test program based on this code ... .
If (HL) is contended, two passes of the loop ... to 50 T for non-contended RAM.
A fairly ... -
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... 20MHz to do a quick test. The test was meant to use ... ULA (both VRAM and non-contended RAM), and I'm afraid ... other way, if a non-contended RAM access is to be ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... time required per byte, including contended RAM overheads but excluding any ... external loops, is:
[code]Contended: LDIR LDI
Only ... write a quick routine to test it for myself.
zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... ?
There's a test you can perform, if you ... more memory. This bank is contended. The other bank contains memory ... machine.
If the contended RAM is damaged, the computer ... border : a chip in the contended bank is damaged. Further analysis ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... posted the following copyright free test code for anyone to use ... is the Z80 128K +3 test code for the RS232 download ... />
; *MUST EXECUTE IN NON-CONTENDED RAM*
ld hl ... /> Here is the x86 DOS test code (COM1 only) for the ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... Z80 code since my initial test, I can now post the ... is the Z80 128K +3 test code for the RS232 download ... />
; *MUST EXECUTE IN NON-CONTENDED RAM*
ld hl ... /> Here is the x86 DOS test code (COM1 only) for the ...The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... .
;;; send romfile,test.rom,64 ; 64K fixed ROM ...
send romfile,test.rom,# ; Actual ROM used
contended defs 9472,0
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... it:
zx232 /p TEST.ROM 32768
This ... ]
; *MUST EXECUTE IN NON-CONTENDED RAM*
; *CORRUPTS REGISTER 7 ...Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... . But for this non-serious test game, I think I'll ... game code now resides in contended RAM. Also have my heap ... and therefore sprite data in contended RAM too. In high RAM ...Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
... />
i made dead simple test bed for copy routine and ... ]
if we forget contended memory, both routines should move ...Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... Try to run fuse test when arrives I ... bus? failed (0xff)
Contended memory? passed
High ... bus? failed (0x00)
Contended memory? failed (0x02)
... running Woody's Z80 test suite, the failures on ... the flags test are:
[code ...DivIDE questionsHi All, I'm the proud owner of two DivIDE interfaces, that I have just "inherited" from a friend. One of them is the original one and the other one …
... are ready, I must it test on real hardware.
contended with all devices. All with ...128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... ULA.
The 0xbffd test is testing that a real ... banks 5-7 should be contended on a 128.... or is ... />
Correct. Odd pages are contended on the 128, whatever the ...128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... haven't tried the same test on a 48 ULA, because ... two /PHICPU pulses aren't contended and last four /PHICPU pulses ... can be contended. The fifth a the sixth ... possibly contended pulses are missing. The contention ...Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…
... /> I've performed a load test with some tapes I have ... /> I wanted to perform a test which showed that a normal ... , so it loads entirely into contended memory, which might cause a ...Help with Spectrum 128k reparationHi! I have the following symptoms with a 128k unit version 6U - On power on, black and white bars (one char width each), white background - Once po…
... test to determine if the fault RAM is in contended or non contended ... the fault is in non contended memory (and you will have ... , then the fault is in contended RAM, and the special tester ...
