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2.2.1
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@cgarlati cgarlati released this 08 Oct 17:43
· 24 commits to master since this release
v2.2.1
15acc66

Release notes

  • add support for SiFive E21 (4 PMP regs / SiFive CLIC)
  • add prebuilt bitstreams for Arty A7 35T and 100T
  • increase CLIC max sources to 256
  • zone1: add printf.c and strtok.c to reduce code size < 16K
  • zone1: switch to vectored trap handler to reduce irq latency
  • fix -Wall and -Wextra warnings
  • update riscv-gnu-toolchain-20210618 (rv32i|rv32e|rv64i)mac
  • update manual.pdf and README.md

multizone.jar @1b9f31 (v2.2.1) / kernel @6b58e8 (v2.2.1):

  • major redesign of kernel internal data structures
  • up to 32/64 clint + 64/128 plic sources
  • up to 256 clic sources for both rv32 and rv64
  • reduce size of most kern vars from REGSIZE to 4-byte
  • increase trap & emulation i-cache size
  • add support for SiFive clic (E21)
  • reintroduce support for rv32e 16-regs
  • update riscv-gnu-toolchain-20210618 (rv32i|rv32e|rv64i)c
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