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Toastrack/Grey +2 physical memory layoutI'm looking to extend the functionality of the test ROM used with Winston's diagnostic board to also properly test the RAM of toastrack and grey 128K…
... diagnostic board to also properly test the RAM of toastrack ... Uncontended IC15-IC22 (Banks 0,2,4,8)
Contended IC6 ... what corresponds to contended/uncontended memory.
Could anyone ... especially with respect to the +2 layout? Also, in which ... -
Upper memory not available in issue 2A friend send me his issue 2 Spectrum for diagnosis. It boots okay but for some reason won't load games over 16kB. He sent also a Smart Card with int…
... friend send me his issue 2 Spectrum for diagnosis. It boots ... ROM, which failed the upper memory RAM test, suspecting IC25 and 26 ... /> I did the print peek test and got either 32763 or ... high to enable the upper memory and under which conditions? Any ... -
ANNOUNCE: SPECSAISIE 1.2 released!SPECSAISIE is a Java system which enables one to perform surgery on SNA and TAP files, and various other gubbins (some functions relate to Spectrum e…
... new as of SPECSAISIE 1.2):
General Spectrum ... Spectrum files onto tape from memory.
- TAPtoBinary: Convert a ... for the second memory.
- Saisie: Generate a BASIC program for typing ... a real Spectrum. The program includes a DATA line for ... -
ANNOUNCE: SPECSAISIE 1.2 released!SPECSAISIE is a Java system which enables one to perform surgery on SNA and TAP files, and various other gubbins (some functions relate to Spectrum e…
... new as of SPECSAISIE 1.2):
General Spectrum ... Spectrum files onto tape from memory.
- TAPtoBinary: Convert a ... for the second memory.
- Saisie: Generate a BASIC program for typing ... a real Spectrum. The program includes a DATA line for ... -
memory is filled up under Win XP when opening many filesDear friends, I have the big and strange problem that ZX-Rainbow's game scanner is not working properly under Windows XP. I figured out (during a ti…
... out (during a time of 2 or 3 weeks) that XP ... in the virtual memory), so that the memory is filled up with ... , freeing the memory.
I wrote another testing program to ensure that ... the complete file content in memory.
The problem does ... -
TASM, Z80 and Spec emusHi! Having some novice questions here regarding TASM and writing machine code for the Speccy emus... Now I have configured TASM into my EditPlus and…
... I have started writing a test asm-file:
... two lines with the program in hex code (as ... Or else my EditPlus program converts the binary data to ... up in memory after loading it...
2. Where can ... insert data to specific memory cells, i.e if ... -
IM 2 interrupts and smooth scrolling - easy peasy!Okay, been fiddling around with IM 2 and have actually mastered (I think) how to use IM 2! Now I run my game Ragnar Revival in IM2 and use HALT to sy…
... fiddling around with IM 2 and have actually mastered ( ... ) how to use IM 2! Now I run my ... 's probably much more memory space efficient to place ... jr start
;a test interrupt function located
;at ... ld i,a
im 2
ei
ret ... -
Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... plan to use RealSpec to test that.
I've ... graphics instead of page 2 due to the memory contention issue).
program? For instance, i would like ... write a "full 48k" basic program?
Whilst using +3DOS ... -
Spectrum +2 Test Software ROM BoardHi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot. Many thanks …
Hi - Can anybody help I am trying to get hold of a Spectrum +2 Test Software ROM Board the one that connects to the Expansion I/O slot.
Many thanks
Martin -
128k program snapshot that uses ramdiskHello, I am working on a program that uses the ramdisk in 128 mode. However, when I save the 128k snapshot within the emulator I find that I can onl…
... /> I am working on a program that uses the ramdisk in ... saved the snapshot in 128+2 virtual machine, then when I ... in memory. Is there a way to save a snapshot program that ... -
128 spectrum zx +2 is stuck on test screenhey this is my first spectrum i bought it from a boot-sale for 2 pound and it came with loads of games but when i turn it on i get the test screen an…
... from a boot-sale for 2 pound and it came with ... it on i get the test screen and it makes the ... keeps going bk to the test screen can any one help ... -
How about making a diagnostic program for 128k speccys?Hi guys, I was just chatting with DEATH today about a problem i had with my 128 heatsink spectrum and the need for a 128k speccy diagnostic program …
... diagnostic program came up.
I mean, how can someone test ... if the whole 128k memory of his speccy ... , unless there is such a program that i know nothing about ... -
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…
... ask any 128 / +2 / +2A / +3 owners to test the new version ... the difference between the 128K / +2 and the +2A / +3.
Faulty +2 Grey :(Hello everyone... i was trying to fix a +2 grey board the other day, i had it for some time now. It gave a black screen (paper and border) with two …
... trying to fix a +2 grey board the other day ... I thought it was a memory problem, since i tried known ... /> So i removed all memory chips and installed chip beses ... working +2 grey i have in order to test the faulty ... it could be a memory controller chip so there ...Emulators on the ZX SpectrumHaving released a Spectrum 16K emulator for Spectrum 48/128 machines as part of CCG2008, I was wondering if anybody knows of any emulators which actu…
... emulator! I have seen a program which emulates some ZX81 games ... an ACE allowed me to test the memory and I/O mapping ... be able to program in Forth beyond [B]2 5 + .[/B] :wink ...Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…
...
2) In debugger, select Edit -> Fill Memory Block. Apart ... Dunny > C:\temp\test.tap[/CODE]
... first BASIC program with the second BASIC program. So highlight ... repeat the CAT 1 test it will work ... and then RUN the program. Wait for the application ...Self Test Suite for +2I'm sorry if this has already been discussed before, I searched the forum but couldn't find any info: are there any test software to test +2 and get…
I'm sorry if this has already been discussed before, I searched the forum but couldn't find any info:
are there any test software to test +2 and get some diagnostic results?IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…
... border, and starts reading memory to generate the work area ... with the program[/url], if you want to test other emulators ... /> Main proc
ld a,-2
call CHAN_OPEN
< ...+2 serial port adaptorSome year ago, a friend, electronic expert, soldered a small flat (five cables) on the motherboard on one of my grey +2s, where the internal electron…
... serial communications on my Spectrum +2.
1. How to ... port?
2. How to make a small program test (reading from, writing ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... memory generating a score for our game.
- write a BASIC program ... The computer then expects 2 data bytes to give ... br />
CHAPTER 2 - Display material on the screen ... by one.
(To test the last bit for odd ... we did in chapter 2.
Replace line ...Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
... For example, I've tried 2 copies of Power Drift, one ... with one of the memory chips used for the ... extended 128K memory. I've tested the ... and also tried the test mode which reported the RAM ... Also, I have a grey +2 that gives a completely black ...Sinclair Research test cartridge for use with the ZX Interface 2Anyone want to sell a Sinclair Research test cartridge for use with the ZX Interface 2? Thanks Paul
Anyone want to sell a Sinclair Research test cartridge for use with the ZX Interface 2?
Thanks
PaulFaked MP3/memory sticks etcI recently bought an MP3 player on Ebay from jolly old China. I suspected it would be fake as it was advertised as a 16gb MP3/MP4 player and cost me …
... is a program online I downloaded that tests flash memory and that ... stipulated that they ensure they test it to 16gb before sending ... I receive the replacement and test it out.
Interestingly ...DivIDE with gray +2 LOAD not workingI have 128+2 gray. It has faulty upper memory. PEEK 23733 shows 191. I wanted to use divIDE to load some test programs, but it always hangs when exec…
I have 128+2 gray. It has faulty upper memory.
PEEK 23733 ... use divIDE to load some test programs, but
it always ... /> I suspect that not only memory can be faulty but also ...Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... ROM.
Bit 2 - it is not used
memory over 128k.
... Third category of expansion of memory over 128k.[/quote]
... =1 for RAM 0,1,2,3
A=5 ... the +3 motor once the program has loaded.
...Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... the PC based PDS/2 cross-development system (hopefully ... my +3 3" CF-2 discs to my development ... sourcecode test I typed. I would be examining memory to ... stored directly after the program at address 089F0h. The ... last BYTE of the program is probably 089E5h but ...What memory pages are being used in a +3DOS disk operation?To make a long story short: what pages are in use by +3DOS while doing read operations from the disk drive? Now, for the details, for those interest…
... is loaded into main memory, and then, the program starts.
2), and then, from machine code ... am I missing something? The program does not overwrite system vars ... use nearly all the available memory in all pages) succesfully? ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... interpret their contents in my program)? I should execute consecutive instructions ... or operand?
2. I don't expect my ... ready and I want to test it with some simple ... for checking correctness of microprocessor/memory emulation. They perform a series ...Calpac - Junior Education (Program List)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0009186"]Junior Education[/URL] I see there is no list of programs so here it is: Side A: 1. P…
... :
1. Picture Plotter
2. Homophones
3. Subtraction
1. Tables
2. Sentence Completion Test
3. Romans, The ... , due to at least 1 program being 48K?
Screenshot ...A 30th Anniversary ProjectHappy new year (belatedly...) So with the 30th anniversary approaching, I've decided to do a hardware project to celebrate it. Something hands-on (o…
... the oscillators, made up of 2 gates in a 40106. One ... gets halted every time contended memory is used (so isn't ... is fine (as is the memory, which won't be used ... />
Next I have to test out the CPLD design with ... needs to be done to program an AY chip to make ...
