Issues

• mepc[1] is still writable after #41, and trap entry stores an unmasked mepc (IALIGN=32); mret returns to a misaligned PC

  rsd-devel/rsd#125 · Filter by author CacheGuruinthemaking opened on Sep 22, 2026

• Machine interrupts write the interrupted PC to mtval

  bug
  rsd-devel/rsd#124 · Filter by author mmxsrup opened on Sep 4, 2026

• RV32 mcycleh reads as zero and ignores writes

  bug
  rsd-devel/rsd#123 · Filter by author mmxsrup opened on Sep 4, 2026

• ECALL incorrectly increments minstret

  bug
  rsd-devel/rsd#122 · Filter by author mmxsrup opened on Sep 4, 2026

• Writing fcsr does not update frm

  bug
  rsd-devel/rsd#121 · Filter by author mmxsrup opened on Sep 4, 2026

• # WFI raises a breakpoint exception (mcause = 3) instead of executing as a no-op

  rsd-devel/rsd#120 · Filter by author AnonymousHippo90324 opened on Sep 4, 2026

• # Timer interrupt is prioritized over external interrupt (wrong mcause when both pending)

  rsd-devel/rsd#119 · Filter by author AnonymousHippo90324 opened on Sep 4, 2026

• Reserved mtvec.MODE encoding is latched instead of being coerced (WARL not enforced)

  rsd-devel/rsd#118 · Filter by author AnonymousHippo90324 opened on Sep 4, 2026

• Reserved (WPRI) bits in mstatus/mie are writable and read back non-zero

  rsd-devel/rsd#117 · Filter by author AnonymousHippo90324 opened on Sep 4, 2026

• Reserved B-type branch funct3 decoded as unconditional branch instead of illegal-instruction

  rsd-devel/rsd#116 · Filter by author AnonymousHippo90324 opened on Aug 31, 2026

• M-mode access to dcsr does not raise illegal instruction

  rsd-devel/rsd#115 · Filter by author kkapapu opened on Aug 29, 2026

• Write to read-only marchid does not raise illegal instruction

  rsd-devel/rsd#114 · Filter by author kkapapu opened on Aug 29, 2026

• fcvt.wu.s does not set fflags.NV on overflow

  rsd-devel/rsd#113 · Filter by author kkapapu opened on Aug 29, 2026

• Fetch from unmapped PC raises illegal instruction instead of instruction-access-fault

  rsd-devel/rsd#112 · Filter by author kkapapu opened on Aug 29, 2026

• MRET does not set mstatus.MPIE to 1 per spec

  bug
  rsd-devel/rsd#111 · Filter by author mmxsrup opened on Apr 30, 2026

• FENCE.I DCache Flush Skips a Way → Stale Fetch → mcause = 2

  bug
  rsd-devel/rsd#110 · Filter by author mmxsrup opened on Apr 28, 2026

• Backward jalr to 2-byte-misaligned address permanently deadlocks the pipeline

  bug
  rsd-devel/rsd#109 · Filter by author mmxsrup opened on Apr 25, 2026

• Core deadlocks under DCache load+store traffic

  bug
  rsd-devel/rsd#108 · Filter by author mmxsrup opened on Apr 24, 2026

• [Bug Report] RSD is excuting illegal instruction

  rsd-devel/rsd#97 · Filter by author chenhychen opened on Nov 1, 2024
  1

• [Bug Report] Wrong result of +0 minus +0

  rsd-devel/rsd#93 · Filter by author zhangkanqi opened on May 30, 2024
  9

• [Bug Report] Wrong sign bit when 0 is multiplied by a negative number

  rsd-devel/rsd#92 · Filter by author zhangkanqi opened on May 22, 2024
  7

• [Bug Report] Incorrect upward rounding result of fsub.s instruction

  rsd-devel/rsd#84 · Filter by author zhangkanqi opened on Mar 18, 2024
  3

• [Bug Report] SD bit in mstatus doesn't update when FS=11

  rsd-devel/rsd#75 · Filter by author zhangkanqi opened on Jan 23, 2024
  3

• wrong pointer used for poping btb queue

  rsd-devel/rsd#70 · Filter by author robert-g-liu opened on Aug 15, 2023
  2

• error running the Makefile.verilator.mk

  rsd-devel/rsd#64 · Filter by author Dennishor123 opened on Apr 3, 2023
  3