SILVER3 core released for Vampire 600 V2

TuKo · 03 April 2016, 10:25

SILVER3 core has been released, along with latest SAGA Driver 0.8h !

Full changelog :
* Flag for BFTST fixed
* Super-Scalar improvements :
- Allow more instructions in 2nd pipe
- More 64Bit MMX instructions added
- PADD, PSUB, PMUL, ... (used by videoplayers like RIVA)
* Improved RESET behaviour (AROS)
* Improved SAGA video out (24Bit, 32Bit, YUV422)
* Clock-cycle register added

Download it :
http://www.apollo-accelerators.com/#download

Apollo team would be happy to get feedbacks from users using this new SILVER3 core. Be free to join #Apollo-Team IRC channel on Freenode to discuss it.

Retrofan · 03 April 2016, 12:43

Which is the larger screen mode available with SAGA?

TuKo · 03 April 2016, 12:45

640x480x32 in SILVER releases.

zharn · 03 April 2016, 13:14

sweet

flype · 03 April 2016, 14:01

Thank you for the news.

Some comments…

The APOLLO CPU in SILVER3 release contains some new intructions indeed.
They have been tested with success in the MPEG RiVA to save some FPS. Goal is to prove their usefullness and play MPEG videos in 640×480 @ 24fps. Work in progress. Of course, these new instructions can be used in other sort of applications, particularly in greedy routines.

PADD Dx,Dy,Dz

Code:

Operation : Dz = ( Dy + Dx )
Can be used instead of :
move.w Dy,Dz
add.w Dx,Dz

PSUB Dx,Dy,Dz

Code:

Operation : Dz = ( Dy - Dx )
Can be used instead of :
move.w Dy,Dz
sub.w Dx,Dz

PMUL Dx,Dy,Dz

Code:

Operation : Dz = ( ( Dy * Dx ) >> 8 )
Can be used instead of :
move.x Dx,Dz
muls.w Dy,Dz
asr.l #8,Dz
It is ieee 8.8 multiplication.

MOVE.Q

Code:

Same as MOVE.L but in 64bits (Quad).

PERM #$Selector,Dx,Dy,Dz

Permute bytes from Dx and Dy and save to Dz thanks to the sequence defined in $Selector.

Core now fully supports following pixel formats :

Code:

- 320x240x8/15/16/24/32/YUV
- 640x480x8/15/16/24/32/YUV

8   = CLUT
15  = R5G5B5
16  = R5G6B5
24  = R8G8B8
32  = A8R8G8B8
YUV = Y4U2V2

Next step for SILVER4, change resolution 320/640/800/1024/1280/1920 and some others 16/10.

Clock-cycle register

It is a new read-only register, $DE0008.
We can read it (example: tst.l $DE0008), which reset its counter.
Then, we can read it again (example: move.l $DE0008,d0) so that d0 contains number of CPU cycles since last call.
This a unique feature, very handy to analyse code and hire for greedy routines and helps to optimize code and understand how APOLLO works.

For instance :

Code:

move.l #cafecafe,d1
tst.l $DE0008
divu.l #100,d1
move.l $DE0008,d0
; d0 contains number of cycles consumed by the DIV instruction.

03 April 2016, 14:01	#5
flype Registered User Join Date: Dec 2014 Location: France Posts: 104	Thank you for the news. Some comments… The APOLLO CPU in SILVER3 release contains some new intructions indeed. They have been tested with success in the MPEG RiVA to save some FPS. Goal is to prove their usefullness and play MPEG videos in 640×480 @ 24fps. Work in progress. Of course, these new instructions can be used in other sort of applications, particularly in greedy routines. PADD Dx,Dy,Dz Code: Operation : Dz = ( Dy + Dx ) Can be used instead of : move.w Dy,Dz add.w Dx,Dz PSUB Dx,Dy,Dz Code: Operation : Dz = ( Dy - Dx ) Can be used instead of : move.w Dy,Dz sub.w Dx,Dz PMUL Dx,Dy,Dz Code: Operation : Dz = ( ( Dy * Dx ) >> 8 ) Can be used instead of : move.x Dx,Dz muls.w Dy,Dz asr.l #8,Dz It is ieee 8.8 multiplication. MOVE.Q Code: Same as MOVE.L but in 64bits (Quad). PERM #$Selector,Dx,Dy,Dz Permute bytes from Dx and Dy and save to Dz thanks to the sequence defined in $Selector. Core now fully supports following pixel formats : Code: - 320x240x8/15/16/24/32/YUV - 640x480x8/15/16/24/32/YUV 8 = CLUT 15 = R5G5B5 16 = R5G6B5 24 = R8G8B8 32 = A8R8G8B8 YUV = Y4U2V2 Next step for SILVER4, change resolution 320/640/800/1024/1280/1920 and some others 16/10. Clock-cycle register It is a new read-only register, $DE0008. We can read it (example: tst.l $DE0008), which reset its counter. Then, we can read it again (example: move.l $DE0008,d0) so that d0 contains number of CPU cycles since last call. This a unique feature, very handy to analyse code and hire for greedy routines and helps to optimize code and understand how APOLLO works. For instance : Code: move.l #cafecafe,d1 tst.l $DE0008 divu.l #100,d1 move.l $DE0008,d0 ; d0 contains number of cycles consumed by the DIV instruction.

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03 April 2016, 10:25	#1
TuKo Apollo Team Join Date: May 2014 Location: not far Posts: 379	SILVER3 core released for Vampire 600 V2 SILVER3 core has been released, along with latest SAGA Driver 0.8h ! Full changelog : * Flag for BFTST fixed * Super-Scalar improvements : - Allow more instructions in 2nd pipe - More 64Bit MMX instructions added - PADD, PSUB, PMUL, ... (used by videoplayers like RIVA) * Improved RESET behaviour (AROS) * Improved SAGA video out (24Bit, 32Bit, YUV422) * Clock-cycle register added Download it : http://www.apollo-accelerators.com/#download Apollo team would be happy to get feedbacks from users using this new SILVER3 core. Be free to join #Apollo-Team IRC channel on Freenode to discuss it.

03 April 2016, 12:43	#2
Retrofan Ruler of the Universe Join Date: Mar 2010 Location: Lanzarote/Spain Posts: 6,185	Which is the larger screen mode available with SAGA?

03 April 2016, 12:45	#3
TuKo Apollo Team Join Date: May 2014 Location: not far Posts: 379	640x480x32 in SILVER releases.

03 April 2016, 13:14	#4
zharn Registered User Join Date: Nov 2012 Location: Brisbane Australia Posts: 150	sweet

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