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How to create .TAP that loads into high memory banks?I want to create a program that uses the extended 128k memory, the banks that can be switched into the 0xc000-0xffff area. For the simple stuff I've…
... to create a program that uses the extended 128k memory, the banks ... load up all banks (including 2), then autostarts to my code ... -
ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... />
I found nice test for contended memory - [URL="http://wizard.ae ... .tap"]ulatest3.tap[/URL]
2) [URL="http://www.zxdesign.info ... -
Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…
... load the stage 2 boot loader. The stage 2 boot loader basically ... to be. This small program - the "stage 2.5 boot loader" will ... the CPU is making a memory access to the lower 16K ... I ran a quick test with a short program to make a ... -
TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …
...
TESTROM3 - utility for test your ZX memory
==========================================
... /> press key "2" or JOY LEFT = test 128kB memory
press ... />
TEST 128kB MEMORY
=================
This test work only on ... -
BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
... the same amount of memory and processing time.
test both alternatives in practice ... br />
* This program can be compiled as follows ... gt; 8) {
dhrcPlayer = -2;
}
}
if ... -
Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... 'm still fighting this grey +2.
Symptoms:< ... that, but whenever the program outputs to the beeper, ... Load JetPac via Interface 2.
The title screen ... a 4 Out of Memory.
Just ran ... are tested working in another +2.
Multiface ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... , but I will solder and test them myself (Winston... help! :) ... is that Eagle, the program I've used to ... CPLD)
Platform ROM: 2.86 EUR
Isolation ... RAM to implement an extra memory page (if needed). ... as the current PS/2 adapter, but equally functional ... -
Spectranet hard disk moduleI figure it's about time for a public announcement now that people are starting to get their hands on spectranets. Some of you will be aware that fo…
... behave similarly)
2) The filesystem driver modules. These ... manager which is a utility program written in C that uses ... all the calls paging the memory correctly etc but simply ... implement +3DOS because I can test my implementation against the + ... -
Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…
My old ZX128+2 PROFI (grey model - spanish version) ... .cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html ... basic.
- contain MB02+ memory in full configuration 512kB rom ... socketed.
- big 512kB memory rom is full reprogrammable direct ... -
How to check the whole memory on a +2 greyHi everybody!!! I suspect that i have a bad memory chip on my +2 Grey. Does anybody know if exist any utility to check the whole memory? Thanks a …
Hi everybody!!!
I suspect that i have a bad memory chip on my +2 Grey.
Does anybody know if exist any utility to check the whole memory?
Thanks a lot!!! -
Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …
... the right-click context menu. 2 drives are supported for the ... when running some of the test suites from a tape file ... view to reflect the latest memory state.
- Fixed incorrect ... !
- Fixed a problem in Program Finder where it would frequently ... -
Strange behavior of program compiled with HiSoft BASICA while ago I experimented with HiSoft BASIC 128 (1.2) and compiled [URL="http://www.worldofspectrum.org/forums/showpost.php?p=683349&postcount=140"]…
... -13[/URL] as a test. All the emulators I ... while emulating the 128K/+2/+2A/+3 and everything ... the BASIC loading/calling program several times before running ... I did not test it on the +2 but the proper ... . However HiSoft BASIC 1.2 supports PLAY, and under ... -
Compatible Memory Chips for Issue 2 48K MotherboardHi I was wondering if anybody have a list of manufacturer chips which is compatible with the Issue 2 48K Motherboard, especially the upper 32K RAM.…
... is compatible with the Issue 2 48K Motherboard, especially the upper ... be used in the Issue 2, where Issue 3 will work ... 2 board and found that 7 of the 8 RAM chips test ... -
DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…
... + 512kB flash eprom.
Memory paging in this device is ... need it....
2) port #17 can work in ... gt; OUT #17,2
OUT #E3,2 > OUT #17 ... value 0, page 1 = value 2, page 10 = value 20, ... />
If anyone can test this modified FATWARE on real ... -
Strange cures for a ZX Spectrum +2I have been looking for a +2 now for more than 2 years since I started collecting and restoring Spectrums again. I won a few on eBay, but was unsucce…
... refund and me without a +2. I finally manage to purchase ... the Springboks playing a rugby test against Argentina, the Manchester United ... . After that I took the +2 keyboard apart and reassembly it ... must still test the tape drive and load a program or 2, but ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... poke a few locations of memory. For reasions I cant ... /> Mmmm imagine writing a full program like this.... Silently I screamed ... /> [/code]
Returns 2, just as expected.
Time to test the theory, no armchair machin ... -
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…
... I've been investigating contended memory timings on the Timex Sinclair ... the Timex SCLD still applies memory contention at these locations ... $4000 - $7FFF making a memory access at each location during ... port F4 bits 2 and 3. When the program steps through $0000 ... -
test screencan someone help? iv got a spectrum 128k +2 B i found in the attic form whenn i was a kid. it powers up only it starts on the test screen with out me…
... ? iv got a spectrum 128k +2 B i found in the ... only it starts on the test screen with out me starting ... i wamnt to learn to program it. -
Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…
... to RAM so that a program can intercept and use /hook ... (incl. Speccy) do a RAM test
at startup. By writing ... table before
the RAM test / it will get overwriten. Bummer ... /> ; ... loop code sets every memory location to 2.
uploop:
0x11E2 ... -
Great to be back....and with fun to comeHi all, 1982: I bought a new 16k issue 2 in 1982, eventually got microdrives and a dktronics keyboard (version 1). Built a home made eprom programme…
... bought a new 16k issue 2 in 1982, eventually got microdrives ... a home made stock control program (BASIC) for my dads business ... put my C++ skills to test via the z88dk C compiler ... will be the original IC). Memory etc will be single chip ... -
Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…
... In this case, the test here shows the results ... the bus, written to screen memory, then released control.
* Memory to memory transfers
On the Z80 ... 't yet have a program available to do it. ... (rubber key, 128K +2/+3 and Harlequin). You ... -
+2 DIAGNOSTICSIs there a diagnostics test available for the spectrum 128 (+2) in tzx format? I've just obtained a spectrum +2 Grey and all looks fine with it on f…
Is there a diagnostics test available for the spectrum 128 (+2) in tzx format?
I've just obtained a spectrum +2 Grey and all looks fine with it on first inspection, but got a feeling something might be a bit iffy with the memory -
Creating a ZX Spectrum Development Environment on Mac OS XI’ve been using a Macbook for a while now and am so impressed with it I decided shift my ZX Spectrum development from PC. It took me a little while t…
... />
Once installed test everything is ok by typing ...
[code]MacPorts 2.3.3
Entering interactive ... code]Usage: wine PROGRAM [ARGUMENTS...] Run the specified program
wine -- ... went wrong or what memory position the labels are ... -
[NEW] Retro Virtual Machine v1.0.0 for OSX released!!!!Here it is! Retro Virtual Machine v1.0.0 RELEASED!!!! Many thanks first to Patrik Rak for the PZX format and for their Z80 tests without which RVM…
... knowledge base.
[b]Test it and please let me ... if you find some game / program that don’t work has ... affected machines (48k / 128k / +2) (Not 100% accurate).
Emulation ... br /> Emulation of the contended memory timings.
Pixel to pixel ... -
ZX Spectrum 2+ Stuck on Test ScreenHello, I hope you can point me in the right direction. I recently purchased a ZX Spectrum 2+ which I've never owned before or used. After booting,…
... recently purchased a ZX Spectrum 2+ which I've never owned ... , it gets stuck on the "test screen". After doing some reading ... is the screenshot of the test page I am seeing: http ... -
Reading PC text files from BASIC!I was playing around with my DivMMC Enjoy! and managed to work out that it's dead easy to load PC .TXT files into the Speccy - I've got them viewable…
... screen in a very short program, but it wouldn't ... (I used 50000)
2) I then loaded in a ... on the PC using LOAD *"test.txt" CODE 50001. Yup... ... need to go through the memory addresses and PRINT CHR$ PEEK ... it).
4) Get the program to stop when it hits ... -
+2 Gray ProblemI'm trying to repair a +2 gray that behaves differently at every boot up. Some rare times I can get the selection window but pretty soon the characte…
... 'm trying to repair a +2 gray that behaves differently at ... Farrow's 128k ram testing program. New Z80 tested too since ... around.
After the test run I got "[b]Bad ... ]" at RAM Bank 0 and 2 and also the same message ... -
TommyGun with Debugginghttp://goo.gl/HfSXev?gdriveurl Ok, so this is a pretty big release for me and I have added a lot of stuff into the code editor. Mainly of course …
... really really cool if your program crashes. You simply pause the ... accurate.
Does not have memory contention.
Does not have ... use an external emulator to test the final result of my ... TommyGun/BigSpriteDemo/project.xml)
2. Go to Code Editor
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... .
I wrote the following program which draws some cool patterns ... command directly to the screen memory.
5 LET a ... into a different part of memory first then dump it to ... system variables or the actual program listing? I looked up some ...Issue 2 48k Yellow DisplayHi guys. As the title says, I have an issue 2 that's displaying the typical yellow/green colour screen at switch on. The picture is clear and stab…
... says, I have an issue 2 that's displaying the typical ... per Zorns initial startup test video. All memory voltages present and correct ... br /> Tried to adjust VR1/2 trim pots, no difference..
Replaced VR1/2 with ones from another board ...
