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Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
main code block loads with many rubbish (basic variables, old program etc...).
original game code ~ 24832,40448 -
Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…
... loads with many rubbish (basic variables, old program etc...).
original game ... -
Issue 3B suddenly goes black and whiteAnother 3B I have here had a faulty ULA, swapped that out for another and hurrah! Works! New keyboard membrane and composite mod later I load a game…
At the very start theres a flicker of colour, then it hangs like that, if I put the RAM test cart in the border goes red -
From RAM to dim v$() "video buffer" SPEED UP!Hi! This question is related to "quick RAM copy using LET in Basic" ([url]http://www.worldofspectrum.org/forums/showthread.php?t=44296[/url]). Wel…
... =Hark0;756824]Which is better? POKE address for [B]change video ... a large contiguous chunk. Using BASIC, POKE (or PRINT, of course) would ... -
New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... have now updated the ptime test BASIC a bit so the shadow ... . Would you mind rerunning the test and report if on some ... could run the timing.tap test from [URL="http://zxds.raxoft ... ] and run at least the test #0 and post the first ... -
Loading data from 128 memoryAfter all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory. How do I go about implementing this in…
... use of the RAM disk would prevent the program to be loaded ... -
New game and need some helpdoes anyone have a menu in ADG as an example I could use. (Event code) I have a new game complete other than bug testing. When I test my game with …
... your game with a BASIC loader it will loop ... code file without a BASIC loader the program assumes you'll ... be writing your own BASIC or ... menu system and returns to BASIC at the end. I ... prefers to write his own BASIC menu code in his ... -
New game and need some helpdoes anyone have a menu in ADG as an example I could use. (Event code) I have a new game complete other than bug testing. When I test my game with …
... your game with a BASIC loader it will loop ... code file without a BASIC loader the program assumes you'll ... be writing your own BASIC or ... menu system and returns to BASIC at the end. I ... prefers to write his own BASIC menu code in his ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... were perfect.
The RAM test was only showing 16 K ... warm so I guess the RAM is shot.
I ... 'll replace the RAM and start again, it will ... -
ESXDOS 0.8.5 and .Z80 on +2B or +3Last week I received some .Z80 snapshot files from a DivMMC EnJOY! user to test. These files didn't work on his ZX Spectrum +2B. [URL="http://benophe…
... otherwise compatible program is made when it it executed in RAM.
I checked the PC (program counter) in ... -
Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... tried the test using some wire to disable the upper ram chips ... so I know the upper RAM is causing that problem. :-)
RAM however this did not fix ... , however when trying the Upper RAM test the border always appeared white ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... lost 32K.
The RAM test now gives me only 16K ... />
I swapped The RAM chip at U3 for that ... .
With the original RAM chip in U8 and no ... boot.
So the Ram chip from U3 won't ... Looks like one ram chip has failed ?
Ram chips are = CY62256NLL ... -
Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
This is why my test ROM displays the ULA inputs ... enough in the RAM test pattern for the upper RAM there was no ... -
ESXDOS 0.8.5 and .Z80 on +2B or +3Last week I received some .Z80 snapshot files from a DivMMC EnJOY! user to test. These files didn't work on his ZX Spectrum +2B. [URL="http://benophe…
... otherwise compatible program is made when it it executed in RAM.
I checked the PC (program counter) in ... -
Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... loops through the start-up RAM test and an eventual crash or ... . If you're happy to test my 4116s in your socketed ... -
ZX Spectrum +2 not booting correctlyHello there! I recently purchased a ZX Spectrum +2 from a charity shop with the hope that it may be functional. Upon booting, the Spectrum does not …
... bet on this being a RAM fault as green border with ... is an indication of a RAM test failure. Unfortunately I'm away ... and tell me whether the RAM chips (2 groups of 2 ... -
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 …
[QUOTE=retrogamemart;792420]Surely it still can't be the upper ram again if its returning 65535 or could it?[/QUOTE]
It's possible. The RAM test the Spectrum does when it starts up isn't at all thorough. -
What (Speccy) game are you currently playing ?(Quite a few threads on what youre listening to, watching etc) What Speccy game are you currently playing ? After playing a LOT of Invasion of the …
Chart Topper - its entirely written in BASIC from a program written in ZX Computing but have spent a couple of enjoyable hours, managed to get 2 number 1's:grin: -
Ever lied or bribed to get a job in I.T.?I have the skills that are advertised in several job adverts but I didnt get those skills while working at any company, So do you think I should get …
... way they had found to test basic hardware skills in that if ... -
Ever lied or bribed to get a job in I.T.?I have the skills that are advertised in several job adverts but I didnt get those skills while working at any company, So do you think I should get …
... way they had found to test basic hardware skills in that if ... -
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…
I rather suspect the lower RAM test failed because of IC16 interfering ... -operate with any other upper RAM types. All eight can also ... be replaced with the upper RAM module that I sell, but ... -
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…
... ]I rather suspect the lower RAM test failed because of IC16 interfering ... thought that if an upper RAM IC was interfering with the ... with just changing the upper RAM IC and replacing with a ... -
Return to basic from sna created by Z80 compilerHow can I go back to basic when running sna created using Z80 Assembler ([url] http://www.worldofspectrum.org/utilities.html#crossass [/url])? For e…
... pointed by SP, not to BASIC.
If you called ... bother doing a "proper" BASIC call, your program will return anywhere and ... , you won't return to BASIC (there are some other conditions ... -
48k ProblemsBought in a 48k at work just before christmas. Nice machine, boxed (box has seen better days) and i'm presuming it's an issue 1 machine (001-596759.…
[QUOTE=DEATH;812695]Sounds like lower RAM and bad caps.
Test voltages and report back..[/QUOTE]
But also a ROM failure or a 32K RAM bank failure, since it goes past the RAM test routine and prints the copyright message. -
DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... although it needed two 80ns ram chips on position IC3-IC4 ... worked ok and passed all ram test (paul farrow's cartridge ones ... ), but it needed two 80ns ram chips on positions IC5-IC6 ... -
DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... although it needed two 80ms ram chips on position IC3-IC4 ... worked ok and passed all ram test (paul farrow's cartridge ones ... ), but it needed two 80ms ram chips on positions IC5-IC6 ... I haven't done a test on it yet.
Code tags againHi Foggy!<div><br></div><div>Got the code tags to work. Sort of. Turns out, if you paste in an announcement from any other forum, you have to turn on…
tag test:10 PRINT '"Program: MIRE MARE"
20 RANDOMIZE USR 1366
30 GOTO 20Dead SpectrumHello guys, I've just bought a dead Speccy 48k (Rubber Keyboard Issue 3 board). Basically, when powered on it initially appears to boot up ok, but in…
... Z80 CPU is attempting a RAM test, but the system fails to ... complete the test. Somewhere there is a video ... you tube showing what a RAM test looks like. Blink and you ... the video system) during the RAM test.
[b][i]Mark ...Dead SpectrumHello guys, I've just bought a dead Speccy 48k (Rubber Keyboard Issue 3 board). Basically, when powered on it initially appears to boot up ok, but in…
... that inhibiting the upper RAM's /CAS signal ( ... always prevent faulty upper RAM from interfering with the ... ve learnt that upper RAM faults are almost as ... the action of the initial RAM test is visible, i.e ... RAM; the lower RAM is able to receive and hold the test ...r-type in development for the sam coupehttp://cookingcircle.co.uk/ we need z80 coders graphics artists and audio this is the amstrad cpc 6128 version: https://www.youtube.com/watc…
... from fixed locations in the ram - sams basic was really quite powerful ...
