Sangano reComputer Technology reChinese Academy of Sciences rakapa XiangShan purojekiti, iyo kubva 2020 yanga ichigadzira yepamusoro-inoshanda yakavhurika processor yakavakirwa paRISC-V yekuraira set architecture (RV64GC). Zviitiko zvepurojekiti zvakavhurwa pasi pemvumo yeMulanPSL 2.0 rezinesi.
Iyo purojekiti yakaburitsa tsananguro yezvivharo zvehardware mumutauro weChisel, unoshandurirwa muVerilog, referensi yekumisikidza yakavakirwa paFPGA, uye mifananidzo yekufananidza kushanda kwechip muvhu rakavhurika Verilog simulator Verilator. Madhayagiramu uye tsananguro yezvivakwa zviripo zvakare (pamwe chete anopfuura mazana mana magwaro uye zviuru makumi mashanu mitsara yekodhi), asi kuwanda kwezvinyorwa zviri muchiChinese. Debian GNU/Linux inoshandiswa sereferensi yekushandisa sisitimu inoshandiswa kuyedza iyo FPGA-yakavakirwa kuita.
XiangShan inoti ndiyo yakanyanya kuita RISC-V chip, ichipfuura SiFive P550. Mwedzi uno zvakarongwa kupedzisa kuyedza paFPGA uye kuburitsa 8-musimboti prototype chip inoshanda pa1.3 GHz uye inogadzirwa neTSMC ichishandisa 28nm process tekinoroji, codenamed "Yanqi Lake". Iyo chip inosanganisira 2MB cache, ndangariro controller ine tsigiro yeDDR4 memory (kusvika 32GB ye RAM) uye PCIe-3.0-x4 interface.
Kuita kwekutanga chip muye SPEC2006 bvunzo inofungidzirwa pa7/Ghz, inoenderana neARM Cortex-A72 uye Cortex-A73 chips. Pakupera kwegore, kugadzirwa kweyechipiri "South Lake" prototype ine yakagadziridzwa dhizaini yakarongwa, iyo inozoendeswa kuSMIC ine 14nm process tekinoroji uye kuwedzera frequency kusvika 2 GHz. Yechipiri prototype inotarisirwa kuita pa2006/Ghz muyedzo yeSPEC10, iri padyo neArM Cortex-A76 uye Intel Core i9-10900K processors, uye yepamusoro kune SiFive P550, inomhanyisa RISC-V CPU, ine kushanda kwe8.65/Ghz.
Rangarira kuti RISC-V inopa yakavhurika uye inochinjika yekuraira sisitimu inobvumira mamicroprocessors kuvakirwa zvikumbiro zvemanyorero pasina kuda mari kana kuisa mamiriro ekushandisa. RISC-V inokutendera iwe kuti ugadzire yakavhurika SoCs uye processors. Parizvino, zvichibva pane zvakatemwa zveRISC-V, makambani akasiyana nenharaunda dziri pasi pemarezinesi emahara akasiyana (BSD, MIT, Apache 2.0) vari kugadzira akati wandei akasiyana e microprocessor cores, SoCs uye akatogadzirwa machipisi. Masevhisi masisitimu ane tsigiro yemhando yepamusoro yeRISC-V anosanganisira Linux (iripo kubva pakaburitswa Glibc 2.27, binutils 2.30, gcc 7 uye Linux kernel 4.15) uye FreeBSD.
Source: opennet.ru