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why cant i get the +2a / +3 self test program to work on an emulator?ive tried 2 different emulators. i can get to the test pattern but thats all. holding the keys does nothing
I can't find it but I'm 90% sure there was a topic here explaining the above (key mapping) and also a way around it by simply changing the PC address in the emulation window to be the 'test' routine start hence it would accept the keypresses. -
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 …
... />
Menu controll:
After start menu you can see in ... testing next pages. At end start 128 test
again. You can ... (16384-32767).
At end start test again.
If bad memory ... border lines.
At end start test again.
If bad memory ... -
Random Numbers, USR Return Values & Timing BASICI've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency ana…
... 3277 30312350 1 3298 30514170 128
3276 31940950 0 ... two DPs (0). The test routine, or a GO SUB to ... +INT (RND*50): REM test routine here
9995 NEXT ... PRINT #0;AT 0,0;"Start =";st: BORDER 2: RETURN< ... -
BIN2BAS (load BASIC text into emulator) utilityI've nearly finished testing this. It allows a BASIC program to be loaded from a text file in any emulator which has a "load binary" option. I was wo…
... to redirect input through the 128 editor, to maintain the ... then use the relevant 128 editor routines to copy ... 20 or just below the start of the text, whichever ... I'll upload an interim 128 version after I get ... write a separate insert/test routine so that I can ... -
Screen LoaderCouple days ago i find very interesting loader routine in ex Yugoslavia magazine "Svet Kompjutera" from january 1987. Authors of article, calls this …
... find very interesting loader routine in ex Yugoslavia magazine ... Authors of article, calls this routine "bit-loader" and she ... must be at 49152, routine start at 65024 and she ... DIL),DE
LD A,128
LD (FL1),A ... FL2),A
LD A,128
LD (FL1),A ... -
Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …
... the occasions when it did start correctly, I examined the contents ... how the ROM's start-up memory test works. The relevant ... RAM test was regularly finding a problem at the start of ... written a little machine language test routine and perhaps that would have ... -
Test of screen switching timings.I modified the btime.tap test by Jan Bobrowski to explore the timing of screen switching. The new test, ptime-128, produces different results on diff…
... modified the btime.tap test by Jan Bobrowski to ... switching. The new test, ptime-128, produces different results ... 128/gray +2 and black +2A/+3, who will launch the test ...
The test needs to be performed for ... "]Download the ptime-128 test[/url] -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... ; 32768
jr Start
; **** START INTERRUPT ROUTINE ***
MainLoop ... , 0, 0,128,128,128, 64, 64
DEFB 64, 64,128,128,128, 0, 0 ...
DEFB 160, 0,128, 0,128, 0,195, 60
... -
Cross Platform DevelopmentWhat's the best way to develop cross platform apps? By best, the only limiting criteria would be "at no cost" :)
... , with 2K of flash and 128 bytes (bytes, not K) of ... as flashing attributes and a test routine) - with no optimisation, is less ... -
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…
... will crash back to the 128 menu. If this happens load ... I guess is the Amstrad test routine).
Now select emulation -> ... -
Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …
... you start it from address 0x0000 due to its memory test routine. So ... peripheral ROM would have to start executing at the next instruction ... harder - letting the main ROM start and get its initialization out ... -
Preliminary MontyHey All... A new 2009 production (port from Atari) of a game called "Preliminary Monty" is out. It is a VERY nice platform game - with a bit "crude…
... contain bad joystick controll. Before start game must be tested joystick ... !
kempston joy test example:
HALT ;after interrupt ... with POKE commands.
Test joy in ZX basic:
AND 128 ;test only D7
LD BC ... -
Test program for 128k machinesThere is a Test Program for 16/48k machines: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0008884&loadpics=3[/url] Is there a similar progr…
... has a dire ROM test routine.
I posted ... Research included a ROM test routine on their 'Test Program' (1985, Dr ... :
LD HL,$0000 ; start of ROM
LD BC ... /> [/code]
The routine return with zero set for ... -
Diagnosing a strange software fault in a 48kHi, A friend gave me a 48k, which I am very keen to restore. The spectrum 48k was my first computer over 20 years ago and I owe my ability to code t…
... 't detected by the RAM test routine that is executed at startup ... device to test the RAM in-place, I'd start by removing ... -
ZX Spectrum 48K working as 16K from factoryGood morning I Have a Zx Spectrum 48k working as 16K , it came like this from factory. What can i do to solve this , and put it to work as 48K? Wha…
... machine the result will be 128
If your result ... the Spectrum ROM's RAM test routine works).
Update: A ... 16K model will return 127. 128 might occur in some particular ... -
Problem With POINT StatementHello everyone this is my first ever post, So firstly i'd like to say hello to everyone and secondly thank you to the admins for such a great site, …
... used routines right at the start - since when you tell BASIC ... line it starts at the start of the program and scans ... , as part of a bug test routine. (If it changes a lot ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... GOSUBs, are placed near the start of the program.
routine rather than a DEF FN ... be as close to the start of a line as possible ... be as close to the start of the program as possible ... =t0: PRINT AT 4,0;"Start : ";st:
GO SUB 3 ... -
Writing faster BASICIn terms of structuring BASIC programs, what are the best ways allocate variables, functions, arrays? Any tips. I remember INPUT mag had some suggest…
... is slower (in a *1000 test loop the times are 21 ... DIM a$(1) then the test loop takes 33").
test routine, declaring them at the end ... the variables rather than the start increased the loop time from ... -
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…
... is slower (in a *1000 test loop the times are 21 ... DIM a$(1) then the test loop takes 33").
test routine, declaring them at the end ... the variables rather than the start increased the loop time from ... -
128+ grey screen faultneed help diagnosing this picture,this is not my machine but a picture found online but this is exactly what i found on this +2grey i just picked up.…
... could borrow test chips from other than my
+128 toasty which ... EPROM chips that have a test routine.
[I][B]Mark ... -
analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …
... 63999: POKE 64000,128"
at the start of the BASIC ... LOOK_VARS to call this routine instead, then RUN the ... ;CLEAR [below 64000]: POKE 64000,128
org 23296
... /> ld hl,64000 ;HL=start of counting table
... -
Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
Reworked the bomb exploding routine, saved a massive 3000 tstates ... is pressed, I had a test routine in the wrong place. Remember ... /> Blue Arrow, Click here to start download from Sendspace
Leading Zeroes on a Score in BASICI'm trying to print the score with leading zeroes such that it's always 6 characters wide, i.e.: 000010, 000150, 006100 etc. I quickly knocked thi…
... start time;
* execute routine test loop;
* mark finish time;
* finish - start = test ... number of lines. Optimally the test routine should be contained in one ... line search times for the test routine. Similarly, any variables used by ...Leading Zeroes on a Score in BASICI'm trying to print the score with leading zeroes such that it's always 6 characters wide, i.e.: 000010, 000150, 006100 etc. I quickly knocked thi…
... run a test, insert the lines for the relevant routine from the ... ()): PRINT #0;AT 0,0;"Start : ";st: LET ft=0:
6 REM ... 98: put test routine here
99 NEXT l ... error "A Invalid argument", so start score at 10
6006 ...Reading sequential key pressesI am thinking about writing a quick game and have an idea that requires me to read alternate key presses. I’m thinking along the lines of Daley Thomp…
... of the screen. Just a test routine but the code in the ... (hl), e ; clear flag to start with
Loop ld ...Head over Heels on 128KI noticed an interesting behavior of Head over Heels on 128K Spectrums, especcially with +2A/+3 machines. The game works, but after loading game, lo…
... ="http://www.drumfu.com/HoH-128-Test-3.z80"]snapshot[/url] with ... above pokes (and a pause routine) in place.Hacking the ZX Spectrum 48K ROMHi Guys, I have modded my Speccy with a dual boot ROM loading on first bank the original ZX kernel and on the second bank an enhanced version. I h…
... certainly wouldn't want to start moving routines around in memory ... can tweak the initial memory test routine to fill memory with $FE ... $02 and test on increments instead of decrements; the routine still works ...Broken Issue 2 - likely culpritsI've just got hold of an issue 2 spectrum with an interesting layout (heatsink is vertical and goes down to the speaker, some variable resistors and …
... RAM test routine I'm thinking the next step is to start pulling ...Loading Images/Screens mid-gameHi all, Looking to get back into a bit of coding and I couldn't figure out a way to do the following: I have an image/SCREEN that I'd like to b…
... * 24 cols area; the timer routine starts at 9991):
[code ...
