riscv_dis_shift_xlen

Disassembler: Check shift amount against XLEN (Idea 1)

• Status: WITHDRAWN
  superseded by new idea riscv-dis-shift-xlen-2
• Branch: riscv-dis-shift-xlen
• Tracking PR: #6 (view Pull Request and Diff)
• Mailing List:
  • RFC PATCH v1 (2022-05-23)

Conflicts With

• Combined floating point enhancements
  It's currently incompatible with the patchset above because it adds new match functions (without xlen argument).
• Disassembler: Use faster hash table
  It also changes the core disassembler.
• Pending (RFC): Disassembler: Check shift amount against XLEN (Idea 2)
  This is mutually exclusive idea of fixing shift amount issue.

Issue Solved

In the disassembler, there's no validation whether shift amount is valid on specific architecture.

This patchset changes that by adding xlen argument to match_func (in opcode entry).