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| author | Shubhodeep Roy Choudhury <deepsrc@gmail.com> | 2018-03-16 13:46:20 +0530 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2018-03-16 10:08:39 -0700 |
| commit | be0555d585b332fd0496affe559c0a5a4e7e5644 (patch) | |
| tree | f2bd3e8c00ce18f2f3b823c12fd2fcfa6609be74 | |
| parent | 7e35a2a62f7433060e2ab1c98b3afd8b8a69b829 (diff) | |
| download | spike-be0555d585b332fd0496affe559c0a5a4e7e5644.zip spike-be0555d585b332fd0496affe559c0a5a4e7e5644.tar.gz spike-be0555d585b332fd0496affe559c0a5a4e7e5644.tar.bz2 | |
Fix for issue #183: No illegal instruction exception for c.sxxi instructions encoded with zero shift amount
| -rw-r--r-- | riscv/insns/c_slli.h | 2 | ||||
| -rw-r--r-- | riscv/insns/c_srai.h | 2 | ||||
| -rw-r--r-- | riscv/insns/c_srli.h | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/riscv/insns/c_slli.h b/riscv/insns/c_slli.h index 24fbb13..19d7908 100644 --- a/riscv/insns/c_slli.h +++ b/riscv/insns/c_slli.h @@ -1,3 +1,3 @@ require_extension('C'); -require(insn.rvc_zimm() < xlen); +require(insn.rvc_zimm() < xlen && insn.rvc_zimm() > 0); WRITE_RD(sext_xlen(RVC_RS1 << insn.rvc_zimm())); diff --git a/riscv/insns/c_srai.h b/riscv/insns/c_srai.h index f6638b1..7b594e9 100644 --- a/riscv/insns/c_srai.h +++ b/riscv/insns/c_srai.h @@ -1,3 +1,3 @@ require_extension('C'); -require(insn.rvc_zimm() < xlen); +require(insn.rvc_zimm() < xlen && insn.rvc_zimm() > 0); WRITE_RVC_RS1S(sext_xlen(sext_xlen(RVC_RS1S) >> insn.rvc_zimm())); diff --git a/riscv/insns/c_srli.h b/riscv/insns/c_srli.h index f410fef..008ae62 100644 --- a/riscv/insns/c_srli.h +++ b/riscv/insns/c_srli.h @@ -1,3 +1,3 @@ require_extension('C'); -require(insn.rvc_zimm() < xlen); +require(insn.rvc_zimm() < xlen && insn.rvc_zimm() > 0); WRITE_RVC_RS1S(sext_xlen(zext_xlen(RVC_RS1S) >> insn.rvc_zimm())); |