Setsi sa Theknoloji ea Khomphutha ea Setsi sa Mahlale sa China se hlahisitse projeke ea XiangShan, eo ho tloha ka 2020 esale e nts'etsapele processor e bulehileng ea ts'ebetso e phahameng e ipapisitseng le meralo ea thuto ea RISC-V (RV64GC). Lintlafatso tsa morero li butsoe tlas'a laesense ea tumello ea MulanPSL 2.0.
Morero o hatisitse tlhaloso ea li-block tsa hardware ka puo ea Chisel, e fetoletsoeng ho Verilog, ts'ebetsong ea litšupiso e thehiloeng ho FPGA, le litšoantšo tsa ho etsisa ts'ebetso ea chip ho Verilog simulator Verilator e bulehileng. Litšoantšo le litlhaloso tsa meralo li boetse li fumaneha (ka kakaretso ho feta litokomane tsa 400 le mela e likete tse 50 tsa khoutu), empa bongata ba litokomane bo teng ka Sechaena. Debian GNU/Linux e sebelisoa e le mokhoa oa ts'ebetso o sebelisoang ho leka ts'ebetsong e thehiloeng ho FPGA.
XiangShan e ipolela hore ke chip ea RISC-V e sebetsang ka ho fetisisa, e fetang SiFive P550. Khoeling ena ho reriloe ho phethela liteko ho FPGA le ho lokolla 8-core prototype chip e sebetsang ho 1.3 GHz mme e entsoe ke TSMC e sebelisa theknoloji ea ts'ebetso ea 28nm, e bitsoang "Yanqi Lake". Chip e kenyelletsa cache ea 2MB, taolo ea memori e ts'ehetsang memori ea DDR4 (ho fihla ho 32GB ea RAM) le sebopeho sa PCIe-3.0-x4.
Ts'ebetso ea chip ea pele tekong ea SPEC2006 e hakanngoa ho 7 / Ghz, e lumellanang le li-chips tsa ARM Cortex-A72 le Cortex-A73. Qetellong ea selemo, ho reriloe tlhahiso ea mohlala oa bobeli oa "South Lake" o nang le mohaho o ntlafetseng, o tla fetisetsoa ho SMIC ka theknoloji ea ts'ebetso ea 14nm le ho eketseha ha maqhubu ho 2 GHz. Prototype ea bobeli e lebelletsoe ho sebetsa ka 2006/Ghz tekong ea SPEC10, e haufi le li-processor tsa ARM Cortex-A76 le Intel Core i9-10900K, 'me e phahametse SiFive P550, RISC-V CPU e potlakileng ka ho fetisisa, e nang le tshebetso ea 8.65 / Ghz.
Hopola hore RISC-V e fana ka sistimi ea litaelo ea mochini e bulehileng le e tenyetsehang e lumellang li-microprocessors ho hahuoa bakeng sa lits'ebetso tse ikemetseng ntle le ho hloka meputso kapa ho beha maemo a ts'ebeliso. RISC-V e u lumella ho theha li-SoC le li-processor tse bulehileng ka botlalo. Hajoale, ho ipapisitsoe le tlhaloso ea RISC-V, lik'hamphani le sechaba se fapaneng tlasa lilaesense tse fapaneng tsa mahala (BSD, MIT, Apache 2.0) li ntse li nts'etsapele mefuta e mengata ea li-microprocessor cores, SoCs le lichifi tse seng li hlahisitsoe. Sistimi ea ts'ebetso e nang le ts'ehetso ea boleng bo holimo bakeng sa RISC-V e kenyelletsa Linux (e teng ho tloha ha ho lokolloa Glibc 2.27, binutils 2.30, gcc 7 le Linux kernel 4.15) le FreeBSD.
Source: opennet.ru