Comments for nIGHTFALL Blog / RetroComputerMania.com https://www.nightfallcrew.com Lightning in the Dark Sat, 11 Jan 2025 21:44:34 +0000 hourly 1 http://wordpress.org/?v=3.4.2 Comment on Flash Multicart for SABA Videoplay (Fairchild Channel-F) by Balduin https://www.nightfallcrew.com/05/09/2024/flash-multicart-for-saba-videoplay-fairchild-channel-f/comment-page-1/#comment-247467 Balduin Sat, 11 Jan 2025 21:44:34 +0000 https://www.nightfallcrew.com/?p=16337#comment-247467 Hi, many thanks for showing your excellent work! Can you tell me which kind of reset button type you used? I will order on Aliexpress. Thanks and greetings from Switzerland! Hi, many thanks for showing your excellent work! Can you tell me which kind of reset button type you used? I will order on Aliexpress. Thanks and greetings from Switzerland!

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Comment on HermIRES v1.28 C64 hires-bitmap editor by Timothy Legg https://www.nightfallcrew.com/25/03/2013/hermires-v1-28-c64-hires-bitmap-editor/comment-page-1/#comment-245102 Timothy Legg Wed, 25 Dec 2024 17:55:39 +0000 http://www.nightfallcrew.com/?p=9132#comment-245102 And yes, the editor read the code as weird markups and mangled it into something that won't compile. Basically, for pa, pb and pc, I simulated the abs function with three comparisons of equal, greater or less than and perform assignment to zero or the polarity of subtraction accordingly. That did the absolute value without having to deal with whatever C++ typecasting issues there are with their math.h library. And yes, the editor read the code as weird markups and mangled it into something that won’t compile. Basically, for pa, pb and pc, I simulated the abs function with three comparisons of equal, greater or less than and perform assignment to zero or the polarity of subtraction accordingly. That did the absolute value without having to deal with whatever C++ typecasting issues there are with their math.h library.

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Comment on HermIRES v1.28 C64 hires-bitmap editor by Timothy Legg https://www.nightfallcrew.com/25/03/2013/hermires-v1-28-c64-hires-bitmap-editor/comment-page-1/#comment-245100 Timothy Legg Wed, 25 Dec 2024 17:50:13 +0000 http://www.nightfallcrew.com/?p=9132#comment-245100 There's a LOT of bugs in this code (Ambiguous overload call to abs(double) in source/AllegroPNG/alpng_filters.c). Rather than risking using a different math.h, I just manually replaced the three lines: uint32_t pa = abs(p - a); uint32_t pb = abs(p - b); uint32_t pc = abs(p - c); with uint32_t pa, pb, pc; if(p==a){pa=0;} if(p>a){pa=p-a;} if(p<a>b){pb=p-b;} if(p<b>c){pc=p-c;} if(p<c){pc=c-p;} But despite fixing this, it still was broken due to an unknown logical error. $ ./HermIRES Shutting down Allegro due to signal #4 Illegal instruction (core dumped) So there is something deeply flawed with this release, on the order of either logical or memory management errors. I'm not learning a library just to fix someone else's code. It's easier to finish writing my own C program to achieve my goal. There’s a LOT of bugs in this code (Ambiguous overload call to abs(double) in source/AllegroPNG/alpng_filters.c). Rather than risking using a different math.h, I just manually replaced the three lines:

uint32_t pa = abs(p – a);
uint32_t pb = abs(p – b);
uint32_t pc = abs(p – c);

with

uint32_t pa, pb, pc;
if(p==a){pa=0;} if(p>a){pa=p-a;} if(pb){pb=p-b;} if(pc){pc=p-c;} if(p<c){pc=c-p;}

But despite fixing this, it still was broken due to an unknown logical error.

$ ./HermIRES
Shutting down Allegro due to signal #4
Illegal instruction (core dumped)

So there is something deeply flawed with this release, on the order of either logical or memory management errors. I'm not learning a library just to fix someone else's code. It's easier to finish writing my own C program to achieve my goal.

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Comment on Didaktik Skalica Co. (Czechoslovakia) Sinclair ZX Spectrum Clone by Sergey https://www.nightfallcrew.com/11/06/2016/didaktik-skalica-co-czechoslovakia-sinclair-zx-spectrum-clone/comment-page-1/#comment-244025 Sergey Tue, 17 Dec 2024 20:21:39 +0000 http://www.nightfallcrew.com/?p=12490#comment-244025 <a href="#comment-184238" rel="nofollow">@ Miroslav Werner </a> It says "Didaktik" on the monitor screen. Open your eyes. @ Miroslav Werner

It says “Didaktik” on the monitor screen. Open your eyes.

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Comment on Commodore 4064 (PAL) & Commodore Educator 64 (NTSC) by xAD / nIGHTFALL https://www.nightfallcrew.com/27/07/2019/commodore-4064-pal-commodore-educator-64-ntsc/comment-page-1/#comment-240807 xAD / nIGHTFALL Sat, 23 Nov 2024 22:46:27 +0000 https://www.nightfallcrew.com/?p=14731#comment-240807 <a href="#comment-240107" rel="nofollow">@Ted Jönsson </a> Yes, no problem, use it. @Ted Jönsson

Yes, no problem, use it.

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Comment on Commodore 4064 (PAL) & Commodore Educator 64 (NTSC) by Ted Jönsson https://www.nightfallcrew.com/27/07/2019/commodore-4064-pal-commodore-educator-64-ntsc/comment-page-1/#comment-240107 Ted Jönsson Mon, 18 Nov 2024 19:49:29 +0000 https://www.nightfallcrew.com/?p=14731#comment-240107 Hi! I'm making a game that is set in the 70s and I was wondering if you would give me permission to use one of these fantastic photos as a texture? I'm thinking about image 11 in the gallery of this post. It's a hobby project that I'm doing by myself in my spare time. One day I might release it on some online store, but it's basically my first game and mostly for fun. Hi!

I’m making a game that is set in the 70s and I was wondering if you would give me permission to use one of these fantastic photos as a texture? I’m thinking about image 11 in the gallery of this post.
It’s a hobby project that I’m doing by myself in my spare time. One day I might release it on some online store, but it’s basically my first game and mostly for fun.

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Comment on Acetronic (Radofin 1292) MPU-1000 Composite MOD by Keith https://www.nightfallcrew.com/08/11/2017/acetronic-radofin-1292-mpu-1000-composite-mod/comment-page-1/#comment-239493 Keith Thu, 14 Nov 2024 03:35:05 +0000 http://www.nightfallcrew.com/?p=13284#comment-239493 Digging up a really old post here, but I did a variant of this composite mod the other day (I used an 120ohm resistor inline with the video signal instead of the trimmer, it works well). The issue is actually with the audio. I think the point at which the audio is sourced is wrong: we get the square wave sound but there is no noise channel, which is needed for explosions in Invaders, Air Sea Attack, etc. Sadly I have no idea how or where to start looking to fix this. Digging up a really old post here, but I did a variant of this composite mod the other day (I used an 120ohm resistor inline with the video signal instead of the trimmer, it works well). The issue is actually with the audio. I think the point at which the audio is sourced is wrong: we get the square wave sound but there is no noise channel, which is needed for explosions in Invaders, Air Sea Attack, etc. Sadly I have no idea how or where to start looking to fix this.

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Comment on C4CPC cartridge replacement for the Amstrad Plus range & GX4000 by An https://www.nightfallcrew.com/05/04/2016/c4cpc-cartridge-replacement-for-the-amstrad-plus-range-gx4000/comment-page-1/#comment-238043 An Sat, 02 Nov 2024 17:30:26 +0000 http://www.nightfallcrew.com/?p=12343#comment-238043 Donde se puede adquirir? Como están los precios de los originales es una buena opción. Saludos Donde se puede adquirir? Como están los precios de los originales es una buena opción. Saludos

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Comment on Texas Instruments (Clementoni) Dotto Conta-Parla by xAD / nIGHTFALL https://www.nightfallcrew.com/19/12/2009/texas-instruments-clementoni-dotto-conta-parla/comment-page-1/#comment-237847 xAD / nIGHTFALL Fri, 01 Nov 2024 15:47:40 +0000 http://www.nightfallcrew.com/?p=2826#comment-237847 <a href="#comment-237510" rel="nofollow">@Luca </a> Ciao Luca, sono passati solo 15 anni da quando ho fatto questo post :-D , guardando bene le foto vedo che e' tutto ad incastro con dei pernetti maschio/femmina ai lati , bisogna sforzare facendo molta attenzione che non si spezzano , consiglio l'utilizzo di ordegni in plastica, quelli per aprire i cellulari , altrimenti graffi tutto con se sforzi con il cacciavite. @Luca

Ciao Luca, sono passati solo 15 anni da quando ho fatto questo post :-D , guardando bene le foto vedo che e’ tutto ad incastro con dei pernetti maschio/femmina ai lati , bisogna sforzare facendo molta attenzione che non si spezzano , consiglio l’utilizzo di ordegni in plastica, quelli per aprire i cellulari , altrimenti graffi tutto con se sforzi con il cacciavite.

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Comment on Super Wildcard DX 32Mb Diagnosis/Repair by Tim https://www.nightfallcrew.com/01/06/2015/super-wildcard-dx-32mb-diagnosisrepair/comment-page-1/#comment-237534 Tim Wed, 30 Oct 2024 03:54:58 +0000 http://www.nightfallcrew.com/?p=11816#comment-237534 Are the GAL/PAL files listed here for the DX version?? 2.8CC is for the NON DX Version. OR are you saying the GAL/PALS from the non-DX version (32mb upgraded) are the same on a DX one?? Are the GAL/PAL files listed here for the DX version?? 2.8CC is for the NON DX Version.

OR are you saying the GAL/PALS from the non-DX version (32mb upgraded) are the same on a DX one??

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Comment on Texas Instruments (Clementoni) Dotto Conta-Parla by Luca https://www.nightfallcrew.com/19/12/2009/texas-instruments-clementoni-dotto-conta-parla/comment-page-1/#comment-237510 Luca Tue, 29 Oct 2024 23:07:41 +0000 http://www.nightfallcrew.com/?p=2826#comment-237510 Ciao, ne ho uno che non funziona come hai fatto ad aprirlo ? è tutto ad incastro o ci sono viti nascoste sotto i numeri ? grazie Ciao, ne ho uno che non funziona come hai fatto ad aprirlo ? è tutto ad incastro o ci sono viti nascoste sotto i numeri ?
grazie

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Comment on Commodore Amiga 4000 – 64Mb Fast Memory Hack by juan carlos https://www.nightfallcrew.com/18/03/2018/commodore-amiga-4000-64mb-fast-memory-hack/comment-page-1/#comment-235882 juan carlos Thu, 17 Oct 2024 08:29:35 +0000 http://www.nightfallcrew.com/?p=13743#comment-235882 is it possible to do it with a amiga 4000t? is it possible to do it with a amiga 4000t?

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Comment on Flash Multicart for Philips Videopac (Magnavox Odyssey 2) by Joachim https://www.nightfallcrew.com/22/09/2024/flash-multicart-for-philips-videopac-magnavox-odyssey-2/comment-page-1/#comment-234788 Joachim Tue, 08 Oct 2024 17:31:13 +0000 https://www.nightfallcrew.com/?p=16350#comment-234788 Thanks for this great work! Got the PCBs with chamfered edges and gold contacts, and currently waiting for the other components. Looking forward to your shell 3D model that is WIP. J Thanks for this great work! Got the PCBs with chamfered edges and gold contacts, and currently waiting for the other components. Looking forward to your shell 3D model that is WIP.
J

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Comment on Texas Instruments Magic Wand Speak & Learn Fixed by Steve https://www.nightfallcrew.com/02/08/2017/texas-instruments-magic-wand-speak-learn-fixed/comment-page-1/#comment-230306 Steve Fri, 09 Aug 2024 21:13:14 +0000 http://www.nightfallcrew.com/?p=13116#comment-230306 Wondering if you ever remembered how to open the shell up. I can’t seem to get it open after I removed the screws either. Wondering if you ever remembered how to open the shell up. I can’t seem to get it open after I removed the screws either.

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Comment on …and fuck the rest ❤️ by xAD / nIGHTFALL https://www.nightfallcrew.com/26/07/2024/and-fuck-the-rest-%e2%9d%a4%ef%b8%8f/comment-page-1/#comment-229784 xAD / nIGHTFALL Fri, 26 Jul 2024 17:32:23 +0000 https://www.nightfallcrew.com/?p=16291#comment-229784 <a href="#comment-229783" rel="nofollow">@Stephen Walters </a> ahahah hairy arm anyway ;-D @Stephen Walters

ahahah hairy arm anyway ;-D

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