There’s a lot of ‘interference’ – largely from a very worried Arm – about RISC-V extensions. Linux will run on RV64GC – that is: the Base Instruction Set plus the Compressed extension, and RISC-V chip designers and OEMs know that. The only reason to use a proprietary extension...
As RISC-V reaches maturity, we look at how RISC-V designs are performing. We look at how performance has improved over the years and how performance compares to other cores, particularly those from Arm. We’ll explore the impact of different extensions and compilers on the performance...
The RISC-V ISA contains several extensions that provide efficient instructions for domain-specific optimization, including the V (vector), Zb{a,b,c,s} (bit manipulation) and Zvk (vector crypto) ratified extensions. This talk will describe a methodology for how to test hand-written assembly rou...
RISC-V updates in Linux 6.13 The RISC-V architecture also had a few changes of its own: Support for pointer masking in userspace with “Smmpm”, “Smnpm”, and “Ssnpm” RISC-V pointer-masking extensions. Seecommitfor details. Support for probing vector misaligned access performance S...
Dual-core 32-bit RISC-VHazard3@ 150 MHz (3-stage in-order pipeline;RV32IMACwith Zba, Zbb, Zbs, Zbkb, Zcb, Zcmp, and Zicsr extensions) Up to two cores can be used at a time, either 2x Arm, 2x RISC-V, or 1x Arm + 1x RISC-V ...
The P8700 is MIPS’ first RISC-V IP. It implements theRISC-V RV64GCZba_Zbb instruction set architecture. It allows the MPS to execute atomic operations, single-precision, and double-precision floating-point operations and incorporates bit manipulation extensions, which streamline data processing ta...
They’ll only be using RISC-V going forward, no more Xtensa cores. Espressif announced that when they introduced the ESP32-C5. Reply Hugh 2 years ago This article doesn’t mention which RISC-V extensions will be implemented or even whether it is 32- or 64-bit wide. I think that...
Optional 32-bit quad-core hardened RISC-V block (RISCV32I with M, A, C, F, and D extensionsand six pipeline stages) Up to 2x high-speed transceiver banks, each with 4 lanes: Support data rates up to 12.5 Gbps One lane with PCIe Gen3 x1 ...
often used to access a unique functionality of individual machine instructions. Being integrated within the compiler, they are more efficient than using simple inline assembly code. For RISC-V, they offer an excellent way to expose the functionality of instruction set extensions to the C/C++ ...
have to be added to the compliance tests. Those tools will help making sure the processors compliant with basic RISC-V specifications, but it’s unclear how all RISC-V extensions that may be vendors specific will be handled, and some may even end up into the standard RISC-V compliance ...