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Fix SBO bit in disassembly mask for ldrah on AArch64. 

The disassembly mask for ldarh incorrectly didn't mask out bit 20 which
is part of the SBO part of the instruction and shouldn't be considered input.

This fixes the wrong bit fixing the disassembly of instructions to
ldarh and makes the behavior consistent.

opcodes/

	PR binutils/23242
	* aarch64-tbl.h (ldarh): Fix disassembly mask.
This commit is contained in:
Tamar Christina 2018-07-06 16:18:19 +01:00
parent cba05feb51
commit f311ba7ed8
2 changed files with 6 additions and 1 deletions
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5
opcodes/ChangeLog
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@ -1,3 +1,8 @@
2018-07-06 Tamar Christina <tamar.christina@arm.com>
PR binutils/23242
* aarch64-tbl.h (ldarh): Fix disassembly mask.
2018-07-06 Tamar Christina <tamar.christina@arm.com>
PR binutils/23369

2
opcodes/aarch64-tbl.h
View File

@ -3219,7 +3219,7 @@ struct aarch64_opcode aarch64_opcode_table[] =
CORE_INSN ("ldxrh", 0x485f7c00, 0xffe08000, ldstexcl, 0, OP2 (Rt, ADDR_SIMPLE), QL_W1_LDST_EXC, 0),
CORE_INSN ("ldaxrh", 0x485ffc00, 0xffe08000, ldstexcl, 0, OP2 (Rt, ADDR_SIMPLE), QL_W1_LDST_EXC, 0),
CORE_INSN ("stlrh", 0x489ffc00, 0xffe08000, ldstexcl, 0, OP2 (Rt, ADDR_SIMPLE), QL_W1_LDST_EXC, 0),
CORE_INSN ("ldarh", 0x48dffc00, 0xffeffc00, ldstexcl, 0, OP2 (Rt, ADDR_SIMPLE), QL_W1_LDST_EXC, 0),
CORE_INSN ("ldarh", 0x48dffc00, 0xfffffc00, ldstexcl, 0, OP2 (Rt, ADDR_SIMPLE), QL_W1_LDST_EXC, 0),
CORE_INSN ("stxr", 0x88007c00, 0xbfe08000, ldstexcl, 0, OP3 (Rs, Rt, ADDR_SIMPLE), QL_R2_LDST_EXC, F_GPRSIZE_IN_Q),
CORE_INSN ("stlxr", 0x8800fc00, 0xbfe08000, ldstexcl, 0, OP3 (Rs, Rt, ADDR_SIMPLE), QL_R2_LDST_EXC, F_GPRSIZE_IN_Q),
CORE_INSN ("stxp", 0x88200000, 0xbfe08000, ldstexcl, 0, OP4 (Rs, Rt, Rt2, ADDR_SIMPLE), QL_R3_LDST_EXC, F_GPRSIZE_IN_Q),