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El Departamento de Justicia de Delaware describe la coordinación de la protección electoral Con las elecciones generales de Delaware a una semana de distancia, la fiscal general Kathy Jennings le recuerda al público que el Departamento de Justicia de Delaware, las fuerzas del orden público estatales y locales y el Departamento de Elecciones harán cumplir […]

Claims include public nuisance, trespass and unjust enrichment Delaware Attorney General Kathy Jennings filed a lawsuit Wednesday against agrochemical giant Monsanto and two of its corporate spinoffs for long-lasting damage to Delaware’s natural resources. The lawsuit seeks to recover damages and clean-up costs associated with polychlorinated biphenyls (PCBs), extremely toxic and persistent chemicals which Monsanto […]

Justices return PCB pollution case to Superior Court The Delaware Supreme Court has ruled unanimously that Attorney General Kathy Jennings’ case against agrochemical giant Monsanto can move forward in Superior Court.   “We thank the Court for its unanimous affirmation that our case can move forward in Superior Court,” said AG Jennings. “This ruling is […]

Governor Markell signed House Bill 175 which will place tighter controls on workers compensation medical costs, while improving the state’s workplace safety program and more effectively encouraging injured individuals to return to work.

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Delaware’s Birth to Three Program is proud to announce a dynamic and engaging virtual event, “Explore Delaware’s Birth to Three Journey with Special Guest Ms. Rachel,” scheduled for December 6, 2023, from 6:00 PM to 7:00 PM (EST) via Zoom. This one-hour live event is divided into two captivating segments, designed to educate, inspire and […]

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Fight back against sophisticated money launderers with these 3 techniques.

The post 3 techniques to improve AML transaction monitoring strategies appeared first on The Data Roundtable.

Today's high-performance computing systems often require the designer to instantiate multiple CPU or DSP cores in their subsystem. However, the performance gained by using multiple CPUs comes with additional programming complexity, especially when accessing shared memory data structures and hardware peripherals. CPU cores need to access shared data in an atomic fashion in a multi-core environment. Locking is the most basic requirement for data sharing. A core takes the lock, accesses the shared data structure, and releases the lock. While one core has the lock, other cores are disallowed from accessing the same data structure. Typically, locking is implemented using an atomic read-modify-write bus transaction on a variable allocated in an uncached memory.

This blog shares the AXI4 locking mechanism when implementing an Xtensa LX-based multi-core system on a Xilinx FPGA platform. It uses a dual-core design mapped to a KC705 platform as an example.

Exclusive Access to Accomplish Locking

The Xtensa AXI4 manager provides atomic access using the AXI4 atomic access mechanism. While Xtensa's AXI manager interface generates an exclusive transaction, the subordinate's interface is also expected to support exclusive access, i.e., AXI monitoring. Xilinx BRAM controller's AXI subordinate interface does not support exclusive access, i.e., AXI monitoring: AXI Feature Adoption in Xilinx FPGAs.

Leveraging Xtensa AXI4 Subordinate Exclusive Access

The Xtensa LX AXI subordinate interface supports exclusive access. One approach is to utilize this support and allocate locks in one of the core's local data memories. Ensure that the number of external exclusive managers is configured, typically to the number of cores (Figure 1).

Figure 1

Note that the Xtensa NX AXI subordinate interface does not support exclusive access. For an Xtensa NX design, shared memory with AXI monitoring is required.

In Figure 2, the AXI_crossbar#2 (block in green) routes core#0's manager AXI access (blue connection) to both core's local memories. Core#1's manager AXI (yellow connection) can also access both core's local memories. Locks can be allocated in either core's local data memory.

In-Bound Access on Subordinate Interface

On inbound access, the Xtensa AXI subordinate interface expects a local memory address, i.e., an external entity needs to present the same address as the core would use to access local memory in its 4GB address space. AXI address remap IP (block in pink) translates the AXI system address to each core's local address. For example, assuming locks are allocated in core#0's local memory, core#1 generates an AXI exclusive to access a lock allocated in core#0's local memory (yellow connection). AXI_crossbar#2 forwards transaction to M03_AXI port (green connection). AXI_address_remap#1 translates the AXI system address to the local memory address before presenting it to core#0's AXI subordinate interface (pink connection).

It is possible to configure cores with disjoint local data memory addresses and avoid the need for an address remap IP block. But then it will be a heterogeneous multi-core design with a multi-image build. An address remap IP is required to keep things simple, i.e., a homogeneous multi-core with a single image build. A single image uses a single memory map. Therefore, both cores must have the same view of a lock, i.e., the lock's AXI bus address must be the same for both.

Figure 2

AXI ID Width

Note Xtensa AXI manager interface ID width=4 bits. Xtensa's AXI subordinate interface ID width=12 bits. So, you must configure AXI crossbar#2 and AXI address remap AXI ID width higher than 4. AXI IDs on a manager port are not globally defined; thus, an AXI crossbar with multiple manager ports will internally prefix the manager port index to the ID and provide this concatenated ID to the subordinate device. On return of the transaction to its manager port of origin, this ID prefix will be used to locate the manager port, and the prefix will be truncated. Therefore, the subordinate port ID is wider in bits than the manager port ID. Figure 3 shows the Xilinx crossbar IP AXI ID width configuration.

Figure 3

Software Tools Support

Cadence tools provide a way to place locks at a specific location. For more details, please refer to Cadence's Linker Support Packages (LSP) Reference Manual for Xtensa SDK. .xtos.lock(green) resides in core#0's local memory and holds user-defined and C library locks. The lock segment memory attribute is defined as shared inner (cyan) so that L32EX and S32EX instructions generate an exclusive transaction on an AXI bus. See Figure 4. The stack and per-core Xtos and C library contexts are allocated in local data memory (yellow).

…………..LSP memory map………….
BEGIN dram0
0x40000000: dataRam : dram0 : 0x8000 : writable ;
dram0_0 : C : 0x40000400 - 0x40007fff : STACK : .dram0.rodata .clib.percpu.data .rtos.percpu.data .dram0.data .clib.percpu.bss .rtos.percpu.bss .dram0.bss;
END dram0
…………………
BEGIN sysViewDataRam0
0xA0100000: system : sysViewDataRam0 : 0x8000 : writable, uncached, shared_inner;
lockRam_0 : C : 0xA0100000 - 0xA01003ff : .xtos.lock;
END sysViewDataRam0
…………..

Figure 4

Please visit the Cadence support site for more information on emulating Xtensa cores on FPGAs.

I want to download Xtensa C/C++ Compiler (XCC) . I dont know where to download. Please help me.

Hi 

I have a Xtensa compiler issue that the compilation for switch case would be optimized in some patterns and leads to unexpected result. I cross-checked the assembly code and found that such compiler optimization seems to be similar to the tree-switch-conversion feature in GCC compiler

• https://gcc.gnu.org/onlinedocs/gcc-9.1.0/gcc/Optimize-Options.html
  -ftree-switch-conversion
      Perform conversion of simple initializations in a switch to initializations from a scalar array. This flag is enabled by default at -O2 and highe

Unfortunately I don't find any similar compiler option(like -fno-tree-switch-conversion) in Xtensa compiler(XCC) to enable/disable such feature and such feature seems like enabled in XCC by default even if I'm using -O0 for the least optimization.

I'm wondering if there's any possible solution to permanently disable such feature in XCC?

PS: The release version of XCC compiler I'm using is RD-2012.5

Thanks!

Senators heard three hours of testimony from anti-wind sources and just one hour from proponents of renewable energy

On June 25, 2018 I woke up to yet another social media trend – a news story with the bold and quite salacious headline “How Safe Are Customer Deposits At FCMB?” had taken over the digital airwaves. Between the shares and likes and comments, a storm in a cup had brewed to great proportions in […]

The Worrisome Trend of Sensational Social Media “Journalism” and the Impact On Legitimate Business Concerns: Recent Travails of FCMB, GTBank and First Bank

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

La enseñanza bíblica en profundidad de John MacArthur lleva la verdad transformadora de la Palabra de Dios a millones de personas cada día.

Extremist violence has been escalating in Pakistan, with minorities of all stripes being targeted. Even Islamic sects are not spared.

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Pleiotropy, measured as expression breadth across tissues, is one of the best predictors for protein sequence and expression conservation. In this study, we investigated its effect on the evolution of cis-regulatory elements (CREs). To this end, we carefully reanalyzed the Epigenomics Roadmap data for nine fetal tissues, assigning a measure of pleiotropic degree to nearly half a million CREs. To assess the functional conservation of CREs, we generated ATAC-seq and RNA-seq data from humans and macaques. We found that more pleiotropic CREs exhibit greater conservation in accessibility, and the mRNA expression levels of the associated genes are more conserved. This trend of higher conservation for higher degrees of pleiotropy persists when analyzing the transcription factor binding repertoire. In contrast, simple DNA sequence conservation of orthologous sites between species tends to be even lower for pleiotropic CREs than for species-specific CREs. Combining various lines of evidence, we propose that the lack of sequence conservation in functionally conserved pleiotropic CREs is owing to within-element compensatory evolution. In summary, our findings suggest that pleiotropy is also a good predictor for the functional conservation of CREs, even though this is not reflected in the sequence conservation of pleiotropic CREs.

Vault RNAs (vtRNAs) are evolutionarily conserved small noncoding RNAs transcribed by RNA polymerase III. Vault RNAs were initially described as components of the vault particle, but have since been assigned multiple vault-independent functions, including regulation of PKR activity, apoptosis, autophagy, lysosome biogenesis, and viral particle trafficking. The full-length transcript has also been described as a noncanonical source of miRNAs, which are processed in a DICER-dependent manner. As central molecules in vault-dependent and independent processes, vtRNAs have been attributed numerous biological roles, including regulation of cell proliferation and survival, response to viral infections, drug resistance, and animal development. Yet, their impact to mammalian physiology remains largely unexplored. To study vault RNAs in vivo, we generated a mouse line with a conditional Vaultrc5 loss-of-function allele. Because Vaultrc5 is the sole murine vtRNA, this allele enables the characterization of the physiological requirements of this conserved class of small regulatory RNAs in mammals. Using this strain, we show that mice constitutively null for Vaultrc5 are viable and histologically normal but have a slight reduction in platelet counts, pointing to a potential role for vtRNAs in hematopoiesis. This work paves the way for further in vivo characterizations of this abundant but mysterious RNA molecule. Specifically, it enables the study of the biological consequences of constitutive or lineage-specific Vaultrc5 deletion and of the physiological requirements for an intact Vaultrc5 during normal hematopoiesis or in response to cellular stresses such as oncogene expression, viral infection, or drug treatment.

BackgroundCOVID-19 pandemic restrictions may have influenced behaviours related to weight.AimTo describe patterns of weight change among adults living in England with type 2 diabetes (T2D) and/or hypertension during the pandemic.Design and settingAn observational cohort study using the routinely collected health data of approximately 40% of adults living in England, accessed through the OpenSAFELY service inside TPP.MethodClinical and sociodemographic characteristics associated with rapid weight gain (>0.5 kg/m2/year) were investigated using multivariable logistic regression.ResultsData were extracted on adults with T2D (n = 1 231 455, 43.9% female, and 76.0% White British) or hypertension (n = 3 558 405, 49.7% female, and 84.3% White British). Adults with T2D lost weight overall (median δ = −0.1 kg/m2/year [interquartile range {IQR} −0.7–0.4]). However, rapid weight gain was common (20.7%) and associated with the following: sex (male versus female: adjusted odds ratio [aOR] 0.78 [95% confidence interval {CI} = 0.77 to 0.79]); age (older age reduced odds, for example, aged 60–69 years versus 18–29 years: aOR 0.66 [95% CI = 0.61 to 0.71]); deprivation (least deprived Index of Multiple Deprivation [IMD] quintile versus most deprived IMD quintile: aOR 0.87 [95% CI = 0.85 to 0.89]); White ethnicity (Black versus White: aOR 0.95 [95% CI = 0.92 to 0.98]); mental health conditions (for example, depression: aOR 1.13 [95% CI = 1.12 to 1.15]); and diabetes treatment (non-insulin treatment versus no pharmacological treatment: aOR 0.68 [95% CI = 0.67 to 0.69]). Adults with hypertension maintained stable weight overall (median δ = 0.0 kg/m2/year [IQR −0.6–0.5]); however, rapid weight gain was common (24.7%) and associated with similar characteristics as in T2D.ConclusionAmong adults living in England with T2D and/or hypertension, rapid pandemic weight gain was more common among females, younger adults, those living in more deprived areas, and those with mental health conditions.

NASA said Thursday that the study of UFOs will require new scientific techniques, including advanced satellites as well as a shift in how unexplained sightings are perceived.

A virtual private network is a service that encrypts your internet connection, ensuring your online activity remains private and secure.

In the midst of the Israel-Hamas war, President-elect Donald Trump announced he will nominate Huckabee, a loyalist and former Republican governor, to serve in the key post as ambassador to Israel.

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La vedette colombienne du reggaeton Karol G s’est excusée pour des paroles de son nouveau single «+57» jugées offensantes.

In a wide-ranging meeting with CODEL McCaskill February 17, National Security Advisor Shivshankar Menon touched on several regional security and trade-related issues.

Zardari made repeated pleas for drones to be "put in Pakistan's hands" so that Pakistan would own the issue and drone attacks (including collateral damage) would not provoke anti-americanism.

Apr 22, 2024

On March 05, 2024, the European Commission unveiled its first-ever European Defense Industry Strategy (EDIS). This announcement comes at an unprecedented moment in history.  In Ukraine, the situation remains a dire tactical stalemate, while belligerent Russia seems more threatening than ever to the European bloc. In the US, despite the efforts of the Biden administration, aid to Ukraine stalled for months and remains a contentious issue in Congress. Across Europe, EU Member States are trying to fill the gap in aid, but are struggling to supply Ukraine with the defense systems it urgently needs. On February 10, at a rally in South Carolina, former President and presidential candidate Donald Trump cast doubt on whether he would defend or surrender to Russia any European country that would fail to achieve NATO’s 2%-of-GDP target for defense spending.

Settlement Overview Video. If you lived at Huronia, Rideau, or Southwestern Regional Centres, you may be eligible to make a claim.

Singer Austin Mahone teams up with The Allstate Foundation to encourage smart teen driving through its #GetThereSafe program.

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