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- Qualcomm_Hexagon abstract "Hexagon (QDSP6) is a DSP based 32-bit multithreaded CPU architecture developed by Qualcomm. According to 2012 estimation, Qualcomm shipped 1.2 billion DSP cores inside its SoCs (average 2.3 DSP core per SoC) in 2011 year, and 1.5 billion cores were planned for 2012, making the QDSP most shipped architecture of DSP (CEVA had around 1 billion of DSP cores shipped in 2011 with 90% of IP-licenseable DSP market).The Hexagon architecture is designed to deliver performance with low power over a variety of applications. It has features such as hardware assisted multithreading, privilege levels, VLIW, SIMD, and instructions geared toward efficient signal processing. The CPU is capable of in-order dispatching up to 4 instructions (the packet) to 4 Execution Units every clock. Hardware multithreading is implemented as barrel temporal multithreading - threads are switched in round-robin fashion each cycle, so 600 MHz physical core is presented as three logical 200 MHz cores before V5. Hexagon V5 switched to dynamic multithreading (DMT) with thread switch on L2 misses, interrupt waiting or on special instructions.The port of Linux for Hexagon runs under a hypervisor layer ("Hexagon Virtual Machine") and was merged with the 3.2 release of the kernel. The original hypervisor is closed-source, and in April 2013 a minimal open-source hypervisor implementation for QDSP6 V2 and V3, the "Hexagon MiniVM" was released by Qualcomm under a BSD-style license.Support for Hexagon was added in 3.1 release of LLVM by Tony Linthicum. There is also a non-FSF maintained branch of GCC and binutils.Hexagon DSPs are included in Snapdragon SoC since 2006. In Snapdragon S4 (MSM8960 and newer) there are three QDSP cores, two in the Modem subsystem and one Hexagon core in the Multimedia subsystem. Modem cores are programmed by Qualcomm only, and only Multimedia core is allowed to be programmed by user.They are also used in some femtocell processors of Qualcomm, including FSM9832.".
- Qualcomm_Hexagon wikiPageExternalLink hexagon_hotchips2013.pdf.
- Qualcomm_Hexagon wikiPageExternalLink hexagon_microreport2013_v5.pdf.
- Qualcomm_Hexagon wikiPageExternalLink hexagon-processor.
- Qualcomm_Hexagon wikiPageExternalLink qualcomm-dsp-access-program.pdf.
- Qualcomm_Hexagon wikiPageExternalLink 457635.
- Qualcomm_Hexagon wikiPageID "34469129".
- Qualcomm_Hexagon wikiPageRevisionID "604803414".
- Qualcomm_Hexagon bits "32".
- Qualcomm_Hexagon design "4".
- Qualcomm_Hexagon designer Qualcomm.
- Qualcomm_Hexagon encoding "Fixed 4 byte per instruction, up to 4 instructions in VLIW multiinstruction".
- Qualcomm_Hexagon gpr "32".
- Qualcomm_Hexagon hasPhotoCollection Qualcomm_Hexagon.
- Qualcomm_Hexagon introduced "2006".
- Qualcomm_Hexagon name "Hexagon".
- Qualcomm_Hexagon open "proprietary".
- Qualcomm_Hexagon type "Register-Register".
- Qualcomm_Hexagon subject Category:Digital_signal_processors.
- Qualcomm_Hexagon subject Category:Instruction_set_architectures.
- Qualcomm_Hexagon subject Category:Qualcomm.
- Qualcomm_Hexagon type Abstraction100002137.
- Qualcomm_Hexagon type Business108061042.
- Qualcomm_Hexagon type DigitalSignalProcessors.
- Qualcomm_Hexagon type Enterprise108056231.
- Qualcomm_Hexagon type Group100031264.
- Qualcomm_Hexagon type Organization108008335.
- Qualcomm_Hexagon type Processor108065937.
- Qualcomm_Hexagon type SocialGroup107950920.
- Qualcomm_Hexagon type YagoLegalActor.
- Qualcomm_Hexagon type YagoLegalActorGeo.
- Qualcomm_Hexagon type YagoPermanentlyLocatedEntity.
- Qualcomm_Hexagon comment "Hexagon (QDSP6) is a DSP based 32-bit multithreaded CPU architecture developed by Qualcomm.".
- Qualcomm_Hexagon label "Qualcomm Hexagon".
- Qualcomm_Hexagon sameAs m.0h_95xg.
- Qualcomm_Hexagon sameAs Q7268615.
- Qualcomm_Hexagon sameAs Q7268615.
- Qualcomm_Hexagon sameAs Qualcomm_Hexagon.
- Qualcomm_Hexagon wasDerivedFrom Qualcomm_Hexagon?oldid=604803414.
- Qualcomm_Hexagon isPrimaryTopicOf Qualcomm_Hexagon.