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Forum: Coders. Asm / Hardware 06 April 2020, 16:51
Replies: 47
Views: 2,363
Posted By NorthWay
Interesting. Two questions comes to mind: - How...

Interesting. Two questions comes to mind:
- How do they handle disk sync to find the start of the data?
- Do they load faster on a faster machine?
Forum: Retrogaming General Discussion 05 April 2020, 05:02
Replies: 6,217
Views: 1,128,397
Posted By NorthWay
PC motherboard, cpu and ram. My old one just...

PC motherboard, cpu and ram. My old one just keeled over and joined the dodo.
(ASUS B450-F, AMD Ryzen5 3600X, HyperX 2x8 2666)
Forum: Coders. Asm / Hardware 03 April 2020, 16:37
Replies: 47
Views: 2,363
Posted By NorthWay
I found an example of what I had in mind, though...

I found an example of what I had in mind, though it is simplified compared to arithmetic compressors AFAIK - see https://en.wikipedia.org/wiki/Ascii85
85(or whatever you end up with) would be your...
Forum: Coders. Asm / Hardware 01 April 2020, 12:12
Replies: 47
Views: 2,363
Posted By NorthWay
Yes they are. I had a bit of a blind spot there,...

Yes they are. I had a bit of a blind spot there, but you typically have to look at up to 3 bits to know what legal encodings can follow and there are 5 possibilities - of which two are common. Good...
Forum: Coders. Asm / Hardware 01 April 2020, 02:01
Replies: 47
Views: 2,363
Posted By NorthWay
You don't. With "1000100010101001" you then have...

You don't. With "1000100010101001" you then have "001"(the last 3 bits) as the prequel to the next 16 bits.
You build tables for "000","001","010","100","101" as the possible prequels (I only did...
Forum: Coders. Asm / Hardware 01 April 2020, 01:25
Replies: 47
Views: 2,363
Posted By NorthWay
Hm? That was an example of looking at 16...

Hm?
That was an example of looking at 16 encoded bits when the three previous ones were all '0'.
Three previous 0 bits is a valid prequel to any random point in a bitstream from the floppy. I think...
Forum: Coders. Asm / Hardware 31 March 2020, 16:34
Replies: 47
Views: 2,363
Posted By NorthWay
This here was my back-of-an-envelope scribbling...

This here was my back-of-an-envelope scribbling about what are the legal encodings for 16 encoded bits of data http://eab.abime.net/attachment.php?attachmentid=60254&d=1539481771
Forum: Coders. Asm / Hardware 31 March 2020, 01:58
Replies: 47
Views: 2,363
Posted By NorthWay
I was working on an answer on my old pc, but it...

I was working on an answer on my old pc, but it died on me (new parts incoming).

Short version: Can you force GCR to work with 2ms? If not then forget that.
Other option: Don't encode and decode...
Forum: support.Games 28 March 2020, 07:27
Replies: 30
Views: 3,367
Posted By NorthWay
I have also disassembled it and rebuilt it back...

I have also disassembled it and rebuilt it back in the day. I put up a patch on Aminet that had fixes and optimizations.
Unfortunately I was never able to find what I think is a 24-bit bug in the...
Forum: Amiga scene 12 March 2020, 18:49
Replies: 1,143
Views: 76,748
Posted By NorthWay
That was around the time I was doing my military...

That was around the time I was doing my military service, walking around Oslo and scoring from bargain bins - got myself an Atari 7800 - and I remember seeing SNES games for NOK800. That was near...
Forum: Nostalgia & memories 09 March 2020, 23:47
Replies: 68
Views: 3,368
Posted By NorthWay
Not buying a totally loaded A500 instead of a...

Not buying a totally loaded A500 instead of a basic A2000 (in autumn 1988). (It probably did pay out a bit later, but I think I would have been ahead with the A500 way.)
Also, not going for a basic...
Forum: Nostalgia & memories 07 March 2020, 16:39
Replies: 31
Views: 1,392
Posted By NorthWay
Scandal! Scandal! Unit A probably...

Scandal! Scandal! Unit A probably...
Forum: Retrogaming General Discussion 27 February 2020, 14:35
Replies: 32
Views: 2,085
Posted By NorthWay
For me I'd rather go with the DSP C= intended for...

For me I'd rather go with the DSP C= intended for the A3000+ and then a set of software drivers and libraries to implement things like synth chips.
Which is why I'd love to get myself one of the...
Forum: Coders. Asm / Hardware 27 February 2020, 14:23
Replies: 16
Views: 1,356
Posted By NorthWay
Yes. I registered on the forum and downloaded...

Yes. I registered on the forum and downloaded them. That is how I knew it was in the search functions the problems with ROM disassembly was.


I know, but that was the closest I could remember. My...
Forum: Coders. Asm / Hardware 26 February 2020, 18:29
Replies: 16
Views: 1,356
Posted By NorthWay
Btw, do you know of this?...

Btw, do you know of this? https://www.ultimateamiga.co.uk/index.php/topic,9795.msg46914.html#msg46914

I have a bundle of hits I have gotten from ReSource at various times. I think they should all...
Forum: Retrogaming General Discussion 26 February 2020, 18:13
Replies: 32
Views: 2,085
Posted By NorthWay
What is "Next"? To me that is/was AAA, of...

What is "Next"?

To me that is/was AAA, of which there is a register listing and high-level system drawing available. One would suspect that it was being built using VHDL, so you could hope that...
Forum: Coders. Asm / Hardware 26 February 2020, 14:54
Replies: 5
Views: 623
Posted By NorthWay
I you mean new and not GNU then yes. It is...

I you mean new and not GNU then yes.
It is often clearer and you kinda need it for 020+ features anyway.
Forum: Coders. Asm / Hardware 23 February 2020, 00:29
Replies: 16
Views: 1,356
Posted By NorthWay
I think I have some more bugs stored somewhere -...

I think I have some more bugs stored somewhere - I'll see if I can find them.

Do you feel confident enough to do some deeper changes to ReSource? For some time now I have wished it would save out...
Forum: Retrogaming General Discussion 22 February 2020, 19:37
Replies: 83
Views: 3,642
Posted By NorthWay
Each to his own mate, but I think they are...

Each to his own mate, but I think they are fantastic and some of the closest to give me the vibe I associate with 80s coin-op games.
The annoying thing is that I can't factually tell you why as I...
Forum: Coders. Asm / Hardware 21 February 2020, 17:59
Replies: 16
Views: 1,356
Posted By NorthWay
You can look at...

You can look at http://eab.abime.net/showthread.php?t=89214 which is where I started.


I have downloaded another .rs of it earlier and looked at the search functions, and IIRC it looked like it...
Forum: Hardware mods 20 February 2020, 16:48
Replies: 238
Views: 23,678
Posted By NorthWay
I think it was one of the RISC-V architects who...

I think it was one of the RISC-V architects who mentioned you could get ASICs done for $5K nowadays. That sounds like a high probability successful Kickstarter.
Forum: Coders. General 20 February 2020, 16:23
Replies: 17
Views: 1,455
Posted By NorthWay
I'd like to see a dynamic/sliced EHB...

I'd like to see a dynamic/sliced EHB converter/viewer for OCS...
Forum: Coders. Asm / Hardware 19 February 2020, 23:22
Replies: 16
Views: 1,356
Posted By NorthWay
You might want to look into the search functions...

You might want to look into the search functions as they seem to be writing over things they have no business with - try ROM disassembly.
Forum: Nostalgia & memories 28 January 2020, 21:52
Replies: 2,505
Views: 380,522
Posted By NorthWay
My CyberStorm has remnants of a level 2 cache in...

My CyberStorm has remnants of a level 2 cache in its design - I don't know if one was ever made. (IIRC there was a serial interface too that I haven't seen.)
Forum: Retrogaming General Discussion 17 January 2020, 16:55
Replies: 20
Views: 1,303
Posted By NorthWay
I thought the in-game tune was DW. I even checked...

I thought the in-game tune was DW. I even checked the Wikipedia page to see that it said so.
But I'll be thrilled to be corrected and learn something new.
Forum: Retrogaming General Discussion 17 January 2020, 15:45
Replies: 20
Views: 1,303
Posted By NorthWay
Leatherneck. But I'd rather have Speedball,...

Leatherneck. But I'd rather have Speedball, SideWinder, Total Recall or Blood Money ingame.
Forum: Coders. Asm / Hardware 14 January 2020, 17:10
Replies: 21
Views: 1,168
Posted By NorthWay
I had this rough idea that you could do a...

I had this rough idea that you could do a complete blitter+copper basic logic building blocks where you run a simple demo purely by them with the cpu halted with a STOP instruction.
"You can now...
Forum: Coders. Asm / Hardware 10 January 2020, 18:54
Replies: 11
Views: 586
Posted By NorthWay
I had a rough idea of using the copper to time...

I had a rough idea of using the copper to time the first fetch each line as x2 and switch up to x4 for the rest of the line. My 4000 is still in limbo so I haven't pushed that to its conclusion.
Forum: Coders. Asm / Hardware 23 November 2019, 03:47
Replies: 36
Views: 3,803
Posted By NorthWay
You could make some ZX style graphics by having...

You could make some ZX style graphics by having the mask bigger than the OR of the pixels - they often cleared 1 pixel every way around the image.
Forum: Amiga scene 16 November 2019, 19:19
Replies: 35
Views: 3,205
Posted By NorthWay
Yeah? What software are you thinking of? Can't...

Yeah?
What software are you thinking of? Can't say I have really have all that much trouble ever since getting 040s and 060, but we might not be using the same sw.
Forum: Retrogaming General Discussion 12 November 2019, 15:42
Replies: 50
Views: 3,828
Posted By NorthWay
A 1GHz 68060 is kinda unlikely considering that...

A 1GHz 68060 is kinda unlikely considering that Motorola used 42nm(?) in their latest spin.
If you instead call it a compatible then you need a lot of testing and a lot of money. The Vampire has...
Forum: Retrogaming General Discussion 05 November 2019, 22:43
Replies: 106
Views: 7,940
Posted By NorthWay
Those seemed a tad sharp and non-CRT to me. I...

Those seemed a tad sharp and non-CRT to me. I would at least expect more "bloom"(? - the correct names for these effects are a nightmare...) on a CRT.
Forum: Amiga scene 29 October 2019, 14:22
Replies: 21
Views: 2,071
Posted By NorthWay
Has anyone tried (in emulated form I guess) some...

Has anyone tried (in emulated form I guess) some other settings?
I think Mindwalker was intended for 128K. Don't know if it used more.
768K - I only know Dragon's Lair. Or you might name it WCS...
Forum: Retrogaming General Discussion 15 October 2019, 23:27
Replies: 50
Views: 3,828
Posted By NorthWay
I was thinking modern out-of-order cpus in...

I was thinking modern out-of-order cpus in general. The additional logic to keep hundreds of instructions in-flight at any one time takes so much transistors, heat, and complexity that it dwarfs much...
Forum: Retrogaming General Discussion 13 October 2019, 23:32
Replies: 50
Views: 3,828
Posted By NorthWay
Strictly speaking, it was the 88K that was the...

Strictly speaking, it was the 88K that was the next step for Motorola. And I don't blame them for doing neither that nor PPC - as long as it looked like clockspeeds were going up and up you were...
Forum: Nostalgia & memories 05 October 2019, 02:30
Replies: 2,505
Views: 380,522
Posted By NorthWay
I believe assigns/devices were borrowed from VMS....

I believe assigns/devices were borrowed from VMS.
Too bad there was not a few standard devices like IN: and OUT: and ERR: to reflect on what unix and C did.
Forum: Nostalgia & memories 02 October 2019, 22:56
Replies: 1
Views: 682
Posted By NorthWay
1. Because they are part of the chips and they...

1. Because they are part of the chips and they follow the chip timings. Values have to propagate through and between the chips and they are read and distributed during the available timing slots.
...
Forum: Nostalgia & memories 21 September 2019, 20:16
Replies: 100
Views: 11,674
Posted By NorthWay
I still think I'm with you on this one.

I still think I'm with you on this one.
Forum: Amiga scene 20 September 2019, 17:23
Replies: 408
Views: 40,246
Posted By NorthWay
I'm (sadly) never gonna get a Vampire, but I am a...

I'm (sadly) never gonna get a Vampire, but I am a big fan of that perspex style see-through case with metal struts and bolts.
Forum: Amiga scene 20 September 2019, 17:19
Replies: 13
Views: 870
Posted By NorthWay
My B2000 rev 4.1(or was it 4.2? I traded it with...

My B2000 rev 4.1(or was it 4.2? I traded it with a friend after I got my A4000) that I bought new in August/September 1988 came with the Cherry version.
It did not have any cpu-slot memory, and I...
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