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Search took 1.08 seconds. Search: Posts Made By: Cyprian
Forum: Amiga scene 15 April 2024, 13:01
Replies: 3,819
Views: 509,626
Posted By Cyprian
Custom ASICs: - Atari ST:...

Custom ASICs:
- Atari ST: GLUE/MMU/DMA/SHIFTER/BLITTER;
- Amiga 500: PAULA/DENISE/AGNUS;


Off the shelf chips:
- Atari ST: 68000, 2xACIA,YM2149,MFP, WD1772, 8bit keyboard CPU, a bunch of...
Forum: Coders. Asm / Hardware 10 April 2024, 15:44
Replies: 91
Views: 5,694
Posted By Cyprian
the CPU has an access to the Chip ram for every...

the CPU has an access to the Chip ram for every other of 3.5MHz clock - this is 1,7 millions accesses per second.
In your case - 68030 @ 50 MHz, the CPU has to wait 28,5 (50/1,7) cycles for an...
Forum: Amiga scene 10 April 2024, 14:04
Replies: 3,819
Views: 509,626
Posted By Cyprian
that high bus bandwidth is possible only with XXI...

that high bus bandwidth is possible only with XXI century accelerators, like BFG9060 or TF1260 and only with FastRam.

Read LW (MB/s) Write LW (MB/s)...
Forum: Amiga scene 09 April 2024, 13:34
Replies: 3,819
Views: 509,626
Posted By Cyprian
ok, but the bus (and chipsets) is 3.5MHz 32bit

ok, but the bus (and chipsets) is 3.5MHz 32bit
Forum: Amiga scene 09 April 2024, 11:22
Replies: 3,819
Views: 509,626
Posted By Cyprian
how did you calculate that 56MB/s?

how did you calculate that 56MB/s?
Forum: support.Hardware 29 March 2024, 19:19
Replies: 70
Views: 5,223
Posted By Cyprian
actually flat shaded vectors are cool. I wonder...

actually flat shaded vectors are cool.
I wonder if DSP3210 could drive the blitter for line drawing and filling vectors. It could be interesting to see how many vectors it can show in one frame.

...
Forum: support.Hardware 27 March 2024, 23:08
Replies: 70
Views: 5,223
Posted By Cyprian
that one...

that one https://www.youtube.com/watch?v=BECjQZccUnU ? Nice video.

Flat shaded 3D an example on DSP56001:
https://www.youtube.com/watch?v=Xt023QhL_-k
https://www.youtube.com/watch?v=A-uVPQtH4Z4...
Forum: support.Hardware 24 March 2024, 15:10
Replies: 70
Views: 5,223
Posted By Cyprian
interesting note for DSP3210 on the page 3: ...

interesting note for DSP3210 on the page 3:
"16.6 milion instruction per second (66MHz clock)"

https://dsp-book.narod.ru/c_dsp/c_dsp3.pdf


DSP56001 has the same figure at 32MHz clock.
Forum: Coders. Asm / Hardware 24 March 2024, 12:28
Replies: 13
Views: 915
Posted By Cyprian
do you mean this one? ...

do you mean this one?
https://www.youtube.com/watch?v=yUU9GzhbNTc
Forum: Amiga scene 23 March 2024, 22:30
Replies: 3,819
Views: 509,626
Posted By Cyprian
haha or worse, both feelings at once :D

haha
or worse, both feelings at once :D
Forum: Amiga scene 23 March 2024, 18:12
Replies: 3,819
Views: 509,626
Posted By Cyprian
I would say nostalgia of childhood

I would say nostalgia of childhood
Forum: support.Hardware 23 March 2024, 17:47
Replies: 70
Views: 5,223
Posted By Cyprian
which Falcon, Falcon 030, Microbox 030 or Falcon...

which Falcon, Falcon 030, Microbox 030 or Falcon 040 Painter with Jaguar chipsets (DSP/GPU) :)
Forum: Amiga scene 23 March 2024, 16:29
Replies: 3,819
Views: 509,626
Posted By Cyprian
I see that 386SX 20Mhz with 16bit bus has a bit...

I see that 386SX 20Mhz with 16bit bus has a bit better bus performance than A1200 with 32bit bus Fastram


Amiga 1200, 020/14, Fastram (M-Tec 0-waitstate) Busspeed test:
Chipram Read: 9.1 MB/s...
Forum: Amiga scene 22 March 2024, 23:37
Replies: 3,819
Views: 509,626
Posted By Cyprian
The context was Amiga vs PC, therefore I ask...

The context was Amiga vs PC, therefore I ask because I'm curious on what basis this statement was based.

We know MIPS means nothing, especially when the platform itself can limit the CPU...
Forum: Amiga scene 22 March 2024, 20:11
Replies: 3,819
Views: 509,626
Posted By Cyprian
chipsets are clocked at 3.5Mhz and the CPU has...

chipsets are clocked at 3.5Mhz and the CPU has access to the chip ram every other chipsets clock. This means that 68EC020 have to wait 8 cycles for each chip memory access.
Forum: Amiga scene 22 March 2024, 20:07
Replies: 3,819
Views: 509,626
Posted By Cyprian
I see 1.3 MIPS (chip) / 1.9 MIPS (fast) for...

I see 1.3 MIPS (chip) / 1.9 MIPS (fast) for A1200 68EC20 14MHz
https://www.ppa.pl/forum/amiga/29637/a1200-i-fast-s-ram#m417288
https://forum.amiga.org/index.php?topic=27590.15


Regarding...
Forum: Amiga scene 22 March 2024, 11:57
Replies: 3,819
Views: 509,626
Posted By Cyprian
can you provide figures for that test 386SX vs...

can you provide figures for that test 386SX vs 68020?
Forum: Amiga scene 07 March 2024, 16:44
Replies: 162
Views: 10,549
Posted By Cyprian
A600 because of IDE port and small nice case, ...

A600 because of IDE port and small nice case,
and CDTV because of build in CD drive and the design
Forum: Amiga scene 09 February 2024, 14:40
Replies: 871
Views: 66,749
Posted By Cyprian
e.g. Macintosh II was released 1987 It had...

e.g. Macintosh II was released 1987
It had Motorola 68020 @ 16 MHz and 640×480 256 colors (24bit palette)
Forum: Amiga scene 02 February 2024, 23:13
Replies: 91
Views: 5,423
Posted By Cyprian
I don't think so, because Atari 800 had chunky...

I don't think so, because Atari 800 had chunky pixels in 1978 and they on purpose gave it up in 1984 in favor of bitplanes.
Forum: Amiga scene 02 February 2024, 19:54
Replies: 91
Views: 5,423
Posted By Cyprian
Technically sprites in Atari Lynx are not Sprites...

Technically sprites in Atari Lynx are not Sprites but just BOBs (Blitter object) because they are blitted by the blitter from memory to memory.


1) I love Atari Lynx but I have to admit that RJ...
Forum: Amiga scene 04 November 2023, 00:32
Replies: 3,819
Views: 509,626
Posted By Cyprian
chunky pixels would not help without improving...

chunky pixels would not help without improving chipram bus bandwidth, because it was rather poor in A1200






wasn't so bad,
there were quite a lot of application which used DSP for...
Forum: Coders. Asm / Hardware 23 October 2023, 00:07
Replies: 5
Views: 629
Posted By Cyprian
if I remember correctly, Devpac treats "move...

if I remember correctly, Devpac treats "move (a0),d0" as "move.w (a0),d0 "


moveq #0,D0
lea data(PC),A0
move.w (a0),D0


Data:
dc.l $FF231965
Forum: Amiga scene 01 August 2023, 13:08
Replies: 1,270
Views: 255,517
Posted By Cyprian
MIPS is rather pointless, especially in case of...

MIPS is rather pointless, especially in case of 3D.

That 1.24 MIPS is true when you use simple instructions like NOP (4 cycles) or ADD/SUB
For 3D, MUL and DIV (and other complex instructions) are...
Forum: Amiga scene 01 August 2023, 13:02
Replies: 1,270
Views: 255,517
Posted By Cyprian
are you saying that: 4096 palette better...

are you saying that:

4096 palette better than 262k
32 colors better than 256 colors
bitplanes better than chunky
3MB/s better than 8MB/s bus bandwidth?


just lol
Forum: Amiga scene 31 July 2023, 22:32
Replies: 1,270
Views: 255,517
Posted By Cyprian
as you may have noticed, this video says it is...

as you may have noticed, this video says it is 360x480 in 256 colors. This is 172 800 bytes per frame.

vs


where I guess is 61 440 bytes per frame (320x256 in 6 bitplanes).
It means Athlon...
Forum: Amiga scene 30 July 2023, 03:07
Replies: 1,270
Views: 255,517
Posted By Cyprian
no more than 7MB/s, because the chipsets need 2...

no more than 7MB/s, because the chipsets need 2 clock cycles for an access to the RAM by the CPU



7MB/s in Amiga vs 128MB/s in PS1 (plus a dedicated hardware for texturing, 3D math etc.)
Forum: Coders. Asm / Hardware 11 July 2023, 11:09
Replies: 5
Views: 999
Posted By Cyprian
does it fill bit by bit, one 16bit word in 16...

does it fill bit by bit, one 16bit word in 16 cycles (3.5MHz?) or complete word at once?
Forum: Amiga scene 29 May 2023, 17:59
Replies: 475
Views: 49,833
Posted By Cyprian
just to summarize, there is no way to play...

just to summarize,

there is no way to play Doom either on unexpanded MegaDrive or unexpanded A1200


anyway, both machines are cool
Forum: Coders. Asm / Hardware 21 May 2023, 02:19
Replies: 100
Views: 13,981
Posted By Cyprian
yep: ray//.tSCc. anyway, what's wrong...

yep:

ray//.tSCc.

anyway, what's wrong with "lea.l sinus(pc),a0"?
Forum: Amiga scene 18 May 2023, 12:51
Replies: 475
Views: 49,833
Posted By Cyprian
Obviously anyone can add more than 96kbytes ram...

Obviously anyone can add more than 96kbytes ram to their Falcon's DSP.

Please post a photo of that MCM6264 Falcon motherboard or stop spreading fake information.
Forum: Amiga scene 18 May 2023, 01:58
Replies: 475
Views: 49,833
Posted By Cyprian
PS1 had 'a bit' better memory performance than...

PS1 had 'a bit' better memory performance than A1200: 132MB/s vs 4.5MB/s (6.9MB/s write)
Even Jaguar with its 106MB/s wasn't able to compete with PS1
Forum: Amiga scene 18 May 2023, 01:19
Replies: 475
Views: 49,833
Posted By Cyprian
ok, I see MCM6264NJ on that schematic:...

ok, I see MCM6264NJ on that schematic: https://archive.org/details/Atari_Falcon030_Schematic_1986_Atari/page/n11/mode/2up
My guess is that it could be an early schematic.

In the end, Atari...
Forum: Amiga scene 17 May 2023, 19:21
Replies: 475
Views: 49,833
Posted By Cyprian
this is a good question to DML (Quake II port...

this is a good question to DML (Quake II port author) and AnimaInCorpore (Cho Ren Sha 68k for the Atari Falcon 030 author https://www.youtube.com/watch?v=2KjwQYw-1Eo )
Forum: Amiga scene 17 May 2023, 18:15
Replies: 475
Views: 49,833
Posted By Cyprian
I think I saw the same post about MCM6264, it's...

I think I saw the same post about MCM6264, it's not worth believing everything on the internet.
I took mine out of the attic an it has 3x AS7C256. This is 96K bytes in total.

79020


yep, I...
Forum: Amiga scene 16 May 2023, 21:46
Replies: 475
Views: 49,833
Posted By Cyprian
it has 24k 24bit words = 96K bytes 0-waitstates ...

it has 24k 24bit words = 96K bytes 0-waitstates RAM.

E.g.:
- Amiga 3000 DSP3210 has 8k bytes 0-waitstates RAM, split in two RAM banks (RAM1/RAM2), each 1k x 32bit words. Fortunately it has...
Forum: Amiga scene 16 May 2023, 15:36
Replies: 475
Views: 49,833
Posted By Cyprian
it seems yes, e.g. there are figures for A4000D...

it seems yes, e.g. there are figures for A4000D with GVP TREX I - A4040/40MHz: https://eab.abime.net/showpost.php?p=1602042&postcount=34


BusSpeedTest 0.19 (mlelstv) Buffer: 262144 Bytes,...
Forum: Amiga scene 15 May 2023, 23:55
Replies: 475
Views: 49,833
Posted By Cyprian
this is just a harmful myth. Busspeed Test...

this is just a harmful myth.

Busspeed Test and Nembench figures:

Read LW (MB/s) Write LW (MB/s)
Falcon 030/16, ST-ram 5.345...
Forum: Amiga scene 11 May 2023, 16:52
Replies: 475
Views: 49,833
Posted By Cyprian
Bus bandwidth for the AGA is 28MB/s (thanks to...

Bus bandwidth for the AGA is 28MB/s (thanks to double cas) because of the needs super hires in 256 colors. Pixel clock in that mode is 28MHz, one byte per pixel = 28MB/s.
The CPU gets max 7MB/s when...
Forum: Amiga scene 19 April 2023, 15:30
Replies: 475
Views: 49,833
Posted By Cyprian
Generally A1200 is rather superior to MegaDrive,...

Generally A1200 is rather superior to MegaDrive, but MD is better in terms of sprites. It can shows up to 20 sprites per scan-line (vs 8 in Amiga) and 80 per VBL.

Also MD sale was impressive,...
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