28337D TMU

Todd Anderson78572

There is an excellent table in the data sheet showing the instructions that are done by the TMU. Can you add another column to show the number of pipeline cycles that each of these instructions takes?

over 11 years ago

0 Vishal_Coelho over 11 years ago

TI__Mastermind 20850 points

Todd,

I believe we will be releasing a separate guide for the TMU shortly but here are the numbers in the meantime:

	C Equivalent Operation	Pipeline
MPY2PIF32 Ra,Rb	a = b * 2pi	2p/3p
DIV2PIF32 Ra,Rb	a = b / 2pi	2p/3p
DIVF32 Ra,Rb,Rc	a = b/c	5p
SQRTF32 Ra,Rb	a = sqrt(b)	5p
SINPUF32 Ra,Rb	a = sin(b*2pi)	4p
COSPUF32 Ra,Rb	a = cos(b*2pi)	4p
ATANPUF32 Ra,Rb	a = atan(b)/2pi	4p
QUADF32 Ra,Rb,Rc,Rd	Operation to assist in calculating ATANPU2	5p

0 Todd Anderson78572 over 11 years ago in reply to Vishal_Coelho

Guru 14640 points

Thanks, quite impressive!

0 LLouis over 10 years ago in reply to Vishal_Coelho

TI__Expert 3515 points

Hi Vishal,

For the QUADF32, is there any C equatation? As an example, i can use y=__cospuf32(x) for COSPUF32 RaH,RbH.
But i can't see any c for QUADF32? Thanks.

0 Vishal_Coelho over 10 years ago in reply to LLouis

TI__Mastermind 20850 points

Hi Louis,

The quadf32 operation is always used in conjunction with atanpuf32 to do a atan2puf32(), so while you wont have an intrinsic for quad, you will have __atan2puf32().

0 Gilles KLIPFEL over 9 years ago in reply to Vishal_Coelho

Prodigy 50 points

Hi Vishal,

Is the seperate TMU guide, you have discussed in your post of january the 6th of 2014 (3:58pm), now available?

If yes, where can I find it?

Thanks

Regards

Gilles

0 Vishal_Coelho over 9 years ago in reply to Gilles KLIPFEL

TI__Mastermind 20850 points

Hi Gilles,

The TMU chapter is part of the "Extended Instruction Set" guide (SPRUHS1). You can find it here:

www.ti.com/.../spruhs1.pdf

0 Gilles KLIPFEL over 9 years ago in reply to Vishal_Coelho

Prodigy 50 points

Hi Vishal,

Thank you very much for your quick feedback.

I have found this instruction set guide, and as now you've told me that all documentation related to TMU is within this instruction set guide, I think I know what to read! :)

Thank you very much
Regards

Gilles

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28337D TMU