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SAGA / AGA Launchpage  1 2 3 4 5 6 7 8 9 10 11 

Gunnar von Boehn
(Apollo Team Member)
Posts 4519
21 May 2018 16:42


A1200 coder wrote:

The memory bandwidth of AGA @ 28MB/sec seems impressive,

Apollo/Saga and Vamp are very good in Memory bandwidth

AGA in AMIGA had max 28 MB/s
SAGA in Vamp has 700 MB/s
 


Matthew Langtry

Posts 169
21 May 2018 17:09


wow 25 times the memory bandwidth of a1200 aga chipset


Vojin Vidanovic

Posts 1627
21 May 2018 17:32


Matthew Langtry wrote:

  wow 25 times the memory bandwidth of a1200 aga chipset
 

 
  Modern memory controller, actually its not that far from that now and is faster then PA Semi and G4 :-)

AMIGA BUSTEST  -  READL  Score
  ------------------------------------------
       
  VAMPIRE 2                    658.9 / 529.5 MB/sec  (world record!)
       
  x1000 AMIGA-1 PA6T 1800 MHz  285.6 MB/sec
  MOS IBook  PPC G4 1400 MHz  185.4 MB/sec
  MOS MacMini PPC G4 1500 MHz  184.3 MB/sec
  OS4 SAM PPC 460    1100 MHz  109.7 MB/sec
  OS4 SAM PPC 440    667 MHz    91.1 MB/sec
  OS4 Peg2 PPC G4    1000 MHz    80.6 MB/sec 
           
  CyberStormPPC 68060@50        55.1 MB/sec
  Apollo 1240  68040@40        47.8 MB/sec
  FPGA ARCADE                    29.0 MB/sec 
  Blizzard 1230 68030@50        24.3 MB/sec
  Typhoon MK2 68030@40          18.8 MB/sec
  AMIGA 4000 68040@25            11.5 MB/sec
  AMIGA 1200 ACA 1220            10.9 MB/sec
  Zeus 68000 50 Mhz              9.1 MB/sec

CLICK HERE 
  Hoping to see v4 results with even faster memory.
 


Renaud Schweingruber
(Apollo Team Member)
Posts 318
22 May 2018 21:12





Tim D

Posts 56
23 May 2018 09:51


Awesome to see that Gold 3 release isn't far off anymore and it already includes Pamela!

Guess I'll have to get me an DIGITAL-VIDEO audio splitter though, to be able to make use of the DIGITAL-VIDEO audio.


Rod March

Posts 105
23 May 2018 09:52


First: Awesome, awesome job team, this ROCKS! I can't wait to see it (and order a V4 too!)
 
  Now two questions:
 
  1) Right now I still use my RGB monitor rather than the DIGITAL-VIDEO out, I realize to get SAGA I will have to use the DIGITAL-VIDEO, but will I still be able to use the RGB out from my Amiga? Or will it stop working altogether once I flash with GOLD3?
 
  2) My understanding is that SAGA is an accelerated AGA core - faster chips, faster chip mem, and more of it. Is there a 'compatability mode' to stop old games running too fast, and a 'Vampire mode' to run the chipset faster for new games? Or can it auto-detect what software is timing dependent? Or do you guys have an even smarter solution? Just curious...


Ronnie Beck

Posts 35
23 May 2018 11:36


Rod March wrote:

  1) Right now I still use my RGB monitor rather than the DIGITAL-VIDEO out, I realize to get SAGA I will have to use the DIGITAL-VIDEO, but will I still be able to use the RGB out from my Amiga? Or will it stop working altogether once I flash with GOLD3?

So the AGA chipset will be on the Vampire card's FPGA chip and essentially bypass the ECS/OCS chips on your Amiga's board.  As such, the RGB port will no longer be used.  Actually that is an implied goal of all this.  No more scandoublers!  Everything over DIGITAL-VIDEO.  Yay!!  Maybe the Apollo Team could offer a "Use Onboard Chips" option for those who would like to use the RGB still, with the caveat that you will only have OCS/ECS.  I am sure someone will argue the need for that.

Rod March wrote:

  2) My understanding is that SAGA is an accelerated AGA core - faster chips, faster chip mem, and more of it. Is there a 'compatability mode' to stop old games running too fast, and a 'Vampire mode' to run the chipset faster for new games? Or can it auto-detect what software is timing dependent? Or do you guys have an even smarter solution? Just curious...

I think this has been proposed already.  If I can be naughty and extrapolate from BigGun's comments in IRC:

<BigGun> yes there are 3 types of games
<BigGun> a) games which ran 100% speed on A500 and sync to VBL
<BigGun> they will not change
<BigGun> b) games which not synced to VBL, they will get faster, this can be controlled on VAMP by using turttle mode
<BigGun> c) games which run not smooth because A500/A4000 was to slow
<BigGun> those will ran much smoother

So my conjecture is that, turtle mode would be extended to slowing down the AGA implementation as well.  But let's wait and see how it looks when it gets here.


Gunnar von Boehn
(Apollo Team Member)
Posts 4519
23 May 2018 12:13


Ronnie Beck wrote:

So my conjecture is that, turtle mode would be extended to slowing down the AGA implementation as well.  But let's wait and see how it looks when it gets here.

 

Yes, the VAMP will per default run fast.
The Vamp is about 15-20 times faster than a typical 68030 Accelerator.
 
Turtle-Mode will allow to run the machine in legacy game speed mode. You can switch to Turtle mode using a CLI command or with "NoCache" Tooltype in WHDLOAD.
 
Turtle Mode should give roughly A1200 with 68020@28MHz speed.
Turtle mode will slow down the Vamp roughly by Factor / 30
 
Demanding games like DOOM/Quake should be run without Turtle mode for highest FPS.
 
Turle-mode will certainly be tweaked more in the future but works already good.
For example, HYBRIS which used to sometimes suffer from to fast Music - plays now really perfect. Hybris never looked so good on Vamp before.


Sean Sk

Posts 327
23 May 2018 15:19


Ronnie Beck wrote:

  So the AGA chipset will be on the Vampire card's FPGA chip and essentially bypass the ECS/OCS chips on your Amiga's board.  As such, the RGB port will no longer be used.  Actually that is an implied goal of all this.  No more scandoublers!  Everything over DIGITAL-VIDEO.  Yay!!  Maybe the Apollo Team could offer a "Use Onboard Chips" option for those who would like to use the RGB still, with the caveat that you will only have OCS/ECS.  I am sure someone will argue the need for that.
 

 
  I could be wrong but I believe there will still be a choice as to whether a user wants to use the AGA chipset and output video through DIGITAL-VIDEO or whether they want to use the ECS chipset and output video through RGB. Obviously you won't be able to use AGA out through RGB, but for me that doesn't matter. I have an A600 with a V600 and would like to continue to use the ECS chipset primarily because I would like to still use it with a nice large 100Hz CRT TV that I'm using. It has a beautiful picture.
 
  For AGA I still have an A1200 which is definitely going to have a Vampire 1200 V4 put into it when it gets released, and that will satisfy my need for SAGA/AGA out through DIGITAL-VIDEO to a LCD monitor.


Vojin Vidanovic

Posts 1627
23 May 2018 15:33


sean sk wrote:

No more scandoublers!  Everything over DIGITAL-VIDEO.  Yay!!  Maybe the Apollo Team could offer a "Use Onboard Chips" option for those who would like to use the RGB still, with the caveat that you will only have OCS/ECS.  I am sure someone will argue the need for that.

We will see, but option to flash 2.9 where RGB can be used, remains.


Gunnar von Boehn
(Apollo Team Member)
Posts 4519
23 May 2018 16:36


Vojin Vidanovic wrote:

 
sean sk wrote:

    No more scandoublers!  Everything over DIGITAL-VIDEO.  Yay!!  Maybe the Apollo Team could offer a "Use Onboard Chips" option for those who would like to use the RGB still, with the caveat that you will only have OCS/ECS.  I am sure someone will argue the need for that.
   

   
    We will see, but option to flash 2.9 where RGB can be used, remains.
 

 
Main goal of Gold 3.0 is to give you AGA.
If you do not want to use AGA but like to stay with OCS on RGB port - then you should for now continue with Gold 2.X


Mo Retro

Posts 238
23 May 2018 21:47


Gunnar von Boehn wrote:
 
  Main goal of Gold 3.0 is to give you AGA.
  If you do not want to use AGA but like to stay with OCS on RGB port - then you should for now continue with Gold 2.X

Is there any certainty that we will get AGA and FPU in core 3 for the V2? Or do we have to choose also between core 2.9 and 3?
Thanks in advance for replying.


Knight Stone

Posts 90
24 May 2018 00:36


What Gunnar is saying is, Gold 3 will have AGA and other things like chipmem size etc, and that the whole point of Gold 3, is AGA.

If you want to use a CRT, you have two choices.

stick with 2.9, and use the RGB, with no AGA

stick with Gold 3, if you want sound over DIGITAL-VIDEO AND AGA. The AGA will ONLY output across DIGITAL-VIDEO, not RGB Somone kindly posted a DIGITAL-VIDEO box, that converts the audio to optical/RCA and video to SCART, i like using my 1084, so this is the route i will take. So that's the bottom line, you can have AGA through DIGITAL-VIDEO, or ECS/OCS across RGB, but you can't have both. If you want RGB from the Amiga, then its 2.9 only, and no Gold 3. i would assume the great work done on the FPU and all that, will still remain


Mo Retro

Posts 238
24 May 2018 01:39


Knight Stone wrote:

  What Gunnar is saying is, Gold 3 will have AGA and other things like chipmem size etc, and that the whole point of Gold 3, is AGA.
 
  If you want to use a CRT, you have two choices.
 
  stick with 2.9, and use the RGB, with no AGA
 
  stick with Gold 3, if you want sound over DIGITAL-VIDEO AND AGA. The AGA will ONLY output across DIGITAL-VIDEO, not RGB Somone kindly posted a DIGITAL-VIDEO box, that converts the audio to optical/RCA and video to SCART, i like using my 1084, so this is the route i will take. So that's the bottom line, you can have AGA through DIGITAL-VIDEO, or ECS/OCS across RGB, but you can't have both. If you want RGB from the Amiga, then its 2.9 only, and no Gold 3. i would assume the great work done on the FPU and all that, will still remain
 

 
  I did understand that Knight Stone but there were some rumours that AGA and the FPU couldn't fit in the V2's FPGA. That's why I wanted a confirmation if that's s the case.
 


Knight Stone

Posts 90
24 May 2018 02:48


Mo Retro wrote:

Knight Stone wrote:

  What Gunnar is saying is, Gold 3 will have AGA and other things like chipmem size etc, and that the whole point of Gold 3, is AGA.
   
    If you want to use a CRT, you have two choices.
   
    stick with 2.9, and use the RGB, with no AGA
   
    stick with Gold 3, if you want sound over DIGITAL-VIDEO AND AGA. The AGA will ONLY output across DIGITAL-VIDEO, not RGB Somone kindly posted a DIGITAL-VIDEO box, that converts the audio to optical/RCA and video to SCART, i like using my 1084, so this is the route i will take. So that's the bottom line, you can have AGA through DIGITAL-VIDEO, or ECS/OCS across RGB, but you can't have both. If you want RGB from the Amiga, then its 2.9 only, and no Gold 3. i would assume the great work done on the FPU and all that, will still remain
 

 
  I did understand that Knight Stone but there were some rumours that AGA and the FPU couldn't fit in the V2's FPGA. That's why I wanted a confirmation if that's s the case.
 

gotcha, my apologies.

The FPU must be present, some of the AGA demo's i've seen running require it, so i am pretty sure it's there, but you're right, confirmation would be good.


Mallagan Bellator

Posts 380
24 May 2018 19:45


Knight Stone wrote:

 
Mo Retro wrote:

 
Knight Stone wrote:

    What Gunnar is saying is, Gold 3 will have AGA and other things like chipmem size etc, and that the whole point of Gold 3, is AGA.
     
      If you want to use a CRT, you have two choices.
     
      stick with 2.9, and use the RGB, with no AGA
     
      stick with Gold 3, if you want sound over DIGITAL-VIDEO AND AGA. The AGA will ONLY output across DIGITAL-VIDEO, not RGB Somone kindly posted a DIGITAL-VIDEO box, that converts the audio to optical/RCA and video to SCART, i like using my 1084, so this is the route i will take. So that's the bottom line, you can have AGA through DIGITAL-VIDEO, or ECS/OCS across RGB, but you can't have both. If you want RGB from the Amiga, then its 2.9 only, and no Gold 3. i would assume the great work done on the FPU and all that, will still remain
   

   
    I did understand that Knight Stone but there were some rumours that AGA and the FPU couldn't fit in the V2's FPGA. That's why I wanted a confirmation if that's s the case.
   
 

 
 
  gotcha, my apologies.
 
  The FPU must be present, some of the AGA demo's i've seen running require it, so i am pretty sure it's there, but you're right, confirmation would be good.
 

 
  Iím not 100% sure, but I think someone said the core was reworked to fit the whole FPU in the V2 FPGA, so if AGA was fitted in, maybe Femu could be used in addition like before, with the most important FPU instructions in hardware.
  Itís true that the talk used to be ďFPGA too small to fit it allĒ, I just donít know if thatís still the case


Gunnar von Boehn
(Apollo Team Member)
Posts 4519
25 May 2018 09:08


The FPGA used in the Vampire-2 has a certain physical size.

This physical size does currently not allow
to fit the CPU, the FPU, and the complete SAGA/AGA++ chipset
at the same time.

This means the upcoming GOLD 3.0 alpha release will contain

* fastest AMIGA memory controller
* 68080 CPU
* SAGA/AGA chipset

It will provide video and audio over DIGITAL-VIDEO, and upgrade your chipmem.
This release will allow to play OCS and AGA Amiga games on modern TVs.




Tim D

Posts 56
25 May 2018 10:39


So, that means for FPU dependent software?

- Not gonna work
- Can use Femu as Mallagan sais
- other?


Stefano Briccolani

Posts 433
25 May 2018 10:55


In an Amiten episode I saw that the aga core beta Johnny was demonstrating in his vampire v2 had a working fpu (sysinfo gave 50 mflops so I doubt it was only software based).
Maybe there will be an hybrid hw/sw fpu?



Adam Whittaker
(Needs Verification)
Posts 270/ 1
25 May 2018 11:22


so can we get a yes or no to FPU  in AGA Core?

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