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calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …
... use:
* in 48K BASIC, enter the program '1 RANDOMIZE '
* in ... -
calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …
[QUOTE=gasman;660758]* in 48K BASIC, enter the program '1 RANDOMIZE '
* in ... suppose to be an internal Basic format? -
Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... , the address of PRINT_OUT. The POKE changes it to $096F, which ... move, the comprehensive POKE is:
POKE (PEEK 23631+256*PEEK 23632+5),111 ... -
Issue 2 problemHeres a video of what happens when I fire up an Issue 2 board ive had hanging around for ages, this is with Paul Farrows RAM test cart in btw If this…
The border turns 'white' (which I've read is done by the Z80), and it looks like a RAM test is being done. So if it's one of the causes you mention, I'm betting lower 16K RAM.
Btw. did you check supply voltages? -
Ram test / diagnostic software for 128k?I need a ram test program urgently (as I have to bring this machine into the party place tomorrow) yet I couldn't find any in infoseek by typing "ram…
thank you all, I will consider buying a ram test cart, also divide solution is very nice, although I think I'm too afraid to flash divide rom :D
I was thinking a test suite that is small enough to fit ram and relocatable. -
Ram test / diagnostic software for 128k?I need a ram test program urgently (as I have to bring this machine into the party place tomorrow) yet I couldn't find any in infoseek by typing "ram…
... , I will consider buying a ram test cart, also divide solution is ... thinking a test suite that is small enough to fit ram and ... -
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 …
... check section of the self-test code from the +3 ... that runs from the test screen after pressing "QAZPLM", with ... br /> ; Spectrum +2 (not +2A!) RAM test
; assemble & run at ... , page x" (RAM I/O error)
[*]"RAM fail: address 0000 ... -
SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... s lower (read "video") RAM. Depending on the mode, ... offer any other rom area ram modes please [/QUOTE]
RAM and separately, you choose ... to the spectrum video RAM (e.g. POKE 16384, n) and ... ula contention and video ram to 6k per processor ... -
Spectrum 128k +2 grey and EPROMhi all, i am try to fix my spectrum, right now i am little on dead end... i think a good idea is to test RAM/ROM on the Spectrum so i will try to c…
... linked to needs to use RAM to work. It also needs ... of the system (like the RAM or ROM chips).
ram test bin and put it on ... rom base and run the test? -
Spectrum 128k +2 grey and EPROMhi all, i am try to fix my spectrum, right now i am little on dead end... i think a good idea is to test RAM/ROM on the Spectrum so i will try to c…
... have tried to burn the RAM test rom from here to the ... -
Saving a file and removing the title (Program:)I remember when saving a program how I could construct a string such as: 10 let a$=chr$ 8+ chr$ 8+"name" 20 save a$ In order to remove the "Program…
... , disable channel 'S' with: POKE (PEEK 23631+256*PEEK 23632+5),111
After LOAD, enable channel 'S' with: POKE (PEEK ... 23631+256*PEEK 23632+5),244 -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
... no necessary to remove all ram ic's from 17-24 ... 3 compoments above and put ram test rom, take a picture to ... -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
... very hot...
Two ram chip (IC28 and IC30) ... I will do some test with the "RAM test ROM"...
I ... want remove the two ram chips... but with my ... replacement for the two dead ram...
thanks to all ... and then change the hot RAM chips, WITHOUT TRYING TO ... -
Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... Hz and do a test using the 'joy' program. If a reaction ... -
another faulty zx spectrum +2 to fix!!!Hello to all, I'm new here... I have got a faulty +2 (gray) and start to try fix it... I have read the treads of xaris_sm and Pluto63 as background…
some little progress after rom ram test fitted in (with the two ... very hot ram installed)...
this is ... -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
Mr-Tape, is it possible to import old CGD data in to the new one? Perhaps save a block of RAM out and poke it back in for the purpose of copying tile graphics over to the new one? -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
... save a block of RAM out and poke it back in for ... -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
... save a block of RAM out and poke it back in for ... -
Hardware description - PLUS D interfaceThis new thread will contain onformations of different ZX devices. Some devices contain manuals, schematics or firmware for some chips, but some peop…
... COUPE... Here is 512kB ram for basic/data and make corversion utility ... in SAM basic is easy. May be... later ... -
Machine code optimisationI'm geting back into z80 coding and wonder what the best way of showing how efficient the code is. I've got Rodney Zaks book and see there are timin…
... /> My thoughts are to poke & peek. I also believe that let ... -
New multi-interface for ZXI have in development new interface for ZX Spectrum. PCB size is similar as K-MOUSE interface and on board is CPLD (programmable logic), up to 1MB st…
... various memory views etc) from basic , poke finder , good backup functionality, search ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... will finally eschew 128 BASIC for better sound and full ... but left to the BASIC loading/management program for better flexibility - ... same loader when the decompressing program, ZX7 in this case, ... loading routine embedded into BASIC management file with the ... -
I know it's part ZX81 but what's the rest of it?You can see the ZX81 motherboard in the corner but I have no idea what the rest does, it powers up but I haven't managed to get the screen to tune in…
... massively enhanced ZX81 with extra RAM, ROM, basic sound, etc. -
Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
... normally appears when the lower Ram is broken or the 12V ... recognized that there is no Ram test using this Rom. Is this ... which works and has upper ram and may be address logic ... -
+3 with dead expansion portI bought a +3 from a WoS user. So far, the computer works as expected, but when an interface (e.g. DivIDE (configured correctly) or Multiface3) is co…
... thought it?s the video test only. You learn something ... clear to me. The RAM test works a while, showing ... , but just before the "RAM test passed" is shown, a ... he had no disk to test with.... In addition I ... . Sure you cannot always test everything, but when I ... -
Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
... 4 times indicating start of test one
- After that ... test 2 starts
For me this means that all RAM ... and all upper Ram chips
128K Ram test ROM
test test-software?
Any input ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... more thoughts on that Assembler program.
I've ... into the main program and then saved with the BASIC. This would ... as part of the BASIC, so the program load time wouldn't ... .
With the current program structure, with no assembler lines ... -
Help with File Compressor by Mladen PopovicHi, I'm trying to compress BombJack (MCM) and transfer it to a +3 disk (Yes I own the original game :) ). I'm unsure about the addresses to enter in…
... +3 leaves 143 bytes for BASIC according to "PRINT 65536-USR ... calculate the absolute maximum free RAM for BASIC at the time.
BASIC in memory, SP is down ... -
Help with File Compressor by Mladen PopovicHi, I'm trying to compress BombJack (MCM) and transfer it to a +3 disk (Yes I own the original game :) ). I'm unsure about the addresses to enter in…
... 3 leaves 143 bytes for BASIC according to "PRINT 65536- ... the absolute maximum free RAM for BASIC at the time.
BASIC in memory, SP is ... in my second short basic loader all is ok ... call putram in my short basic loader with randomize usr ...
