/* aarch64-opc.c -- AArch64 opcode support.
- Copyright 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of the GNU opcodes library.
{ 11, 1 }, /* index: in ld/st inst deciding the pre/post-index. */
{ 24, 1 }, /* index2: in ld/st pair inst deciding the pre/post-index. */
{ 31, 1 }, /* sf: in integer data processing instructions. */
+ { 30, 1 }, /* lse_size: in LSE extension atomic instructions. */
{ 11, 1 }, /* H: in advsimd scalar x indexed element instructions. */
{ 21, 1 }, /* L: in advsimd scalar x indexed element instructions. */
{ 20, 1 }, /* M: in advsimd scalar x indexed element instructions. */
switch (aarch64_operands[type].op_class)
{
case AARCH64_OPND_CLASS_INT_REG:
+ /* Check pair reg constraints for cas* instructions. */
+ if (type == AARCH64_OPND_PAIRREG)
+ {
+ assert (idx == 1 || idx == 3);
+ if (opnds[idx - 1].reg.regno % 2 != 0)
+ {
+ set_syntax_error (mismatch_detail, idx - 1,
+ _("reg pair must start from even reg"));
+ return 0;
+ }
+ if (opnds[idx].reg.regno != opnds[idx - 1].reg.regno + 1)
+ {
+ set_syntax_error (mismatch_detail, idx,
+ _("reg pair must be contiguous"));
+ return 0;
+ }
+ break;
+ }
+
/* <Xt> may be optional in some IC and TLBI instructions. */
if (type == AARCH64_OPND_Rt_SYS)
{
case AARCH64_OPND_Rs:
case AARCH64_OPND_Ra:
case AARCH64_OPND_Rt_SYS:
+ case AARCH64_OPND_PAIRREG:
/* The optional-ness of <Xt> in e.g. IC <ic_op>{, <Xt>} is determined by
the <ic_op>, therefore we we use opnd->present to override the
generic optional-ness information. */
#endif
#define F_DEPRECATED 0x1 /* Deprecated system register. */
+#ifdef F_ARCHEXT
+#undef F_ARCHEXT
+#endif
+#define F_ARCHEXT 0x2 /* Architecture dependent system register. */
+
+
/* TODO there are two more issues need to be resolved
1. handle read-only and write-only system registers
2. handle cpu-implementation-defined system registers. */
{ "spsel", CPEN_(0,C2,0), 0 },
{ "daif", CPEN_(3,C2,1), 0 },
{ "currentel", CPEN_(0,C2,2), 0 }, /* RO */
+ { "pan", CPEN_(0,C2,3), F_ARCHEXT },
{ "nzcv", CPEN_(3,C2,0), 0 },
{ "fpcr", CPEN_(3,C4,0), 0 },
{ "fpsr", CPEN_(3,C4,1), 0 },
return (reg->flags & F_DEPRECATED) != 0;
}
+bfd_boolean
+aarch64_sys_reg_supported_p (const aarch64_feature_set features,
+ const aarch64_sys_reg *reg)
+{
+ if (!(reg->flags & F_ARCHEXT))
+ return TRUE;
+
+ /* PAN. Values are from aarch64_sys_regs. */
+ if (reg->value == CPEN_(0,C2,3)
+ && !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_PAN))
+ return FALSE;
+
+ return TRUE;
+}
+
const aarch64_sys_reg aarch64_pstatefields [] =
{
{ "spsel", 0x05, 0 },
{ "daifset", 0x1e, 0 },
{ "daifclr", 0x1f, 0 },
+ { "pan", 0x04, F_ARCHEXT },
{ 0, CPENC(0,0,0,0,0), 0 },
};
+bfd_boolean
+aarch64_pstatefield_supported_p (const aarch64_feature_set features,
+ const aarch64_sys_reg *reg)
+{
+ if (!(reg->flags & F_ARCHEXT))
+ return TRUE;
+
+ /* PAN. Values are from aarch64_pstatefields. */
+ if (reg->value == 0x04
+ && !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_PAN))
+ return FALSE;
+
+ return TRUE;
+}
+
const aarch64_sys_ins_reg aarch64_sys_regs_ic[] =
{
{ "ialluis", CPENS(0,C7,C1,0), 0 },