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authorAndrew Waterman <andrew@sifive.com>2020-07-21 23:02:13 -0700
committerAndrew Waterman <andrew@sifive.com>2020-07-21 23:03:52 -0700
commit67b7edd0270d5d074136eb45474477d15aeee725 (patch)
treed0364e2c34c224bcef36a59b0fb0c37ba88183b0 /spike_main
parent8d860c190640e19e0f23a21d2479b4a36d13d342 (diff)
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Remove deprecated decoding of xor x0,x0,x0
Some UCB implementations once used this to represent a pipeline bubble. But this encoding is reserved for future standard HINT use. Resolves #503
Diffstat (limited to 'spike_main')
-rw-r--r--spike_main/disasm.cc1
1 files changed, 0 insertions, 1 deletions
diff --git a/spike_main/disasm.cc b/spike_main/disasm.cc
index 626d37c..d551062 100644
--- a/spike_main/disasm.cc
+++ b/spike_main/disasm.cc
@@ -489,7 +489,6 @@ disassembler_t::disassembler_t(int xlen)
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("mv", addi);
DEFINE_ITYPE(addi);