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| author | Christopher Celio <celio@eecs.berkeley.edu> | 2014-01-28 17:06:27 -0800 |
|---|---|---|
| committer | Christopher Celio <celio@eecs.berkeley.edu> | 2014-01-28 17:06:27 -0800 |
| commit | 0346522aa6ca2a91f2d32f824646febc6dff1fc8 (patch) | |
| tree | fa18cf27f63dffbdfa322a8ab13fa2ecfa84600b | |
| parent | 9a9df0230ff3b0eba855d1184079806855b70ede (diff) | |
| download | riscv-isa-sim-0346522aa6ca2a91f2d32f824646febc6dff1fc8.zip riscv-isa-sim-0346522aa6ca2a91f2d32f824646febc6dff1fc8.tar.gz riscv-isa-sim-0346522aa6ca2a91f2d32f824646febc6dff1fc8.tar.bz2 | |
Disasm now translates xor x0,x0,x0 as a machine-generated bubble ("-").
It is very convenient for pipeline trace viewing to differentiate
between compiler NOPs and pipeline bubbles.
| -rw-r--r-- | spike/disasm.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/spike/disasm.cc b/spike/disasm.cc index 31e4068..e4e7315 100644 --- a/spike/disasm.cc +++ b/spike/disasm.cc @@ -247,6 +247,7 @@ disassembler_t::disassembler_t() DEFINE_ITYPE(jalr); add_insn(new disasm_insn_t("nop", match_addi, mask_addi | mask_rd | mask_rs1 | mask_imm, {})); + add_insn(new disasm_insn_t(" - ", match_xor, mask_xor | mask_rd | mask_rs1 | mask_rs2, {})); // for machine-generated bubbles DEFINE_I0TYPE("li", addi); DEFINE_I1TYPE("move", addi); DEFINE_ITYPE(addi); |