STLR

Store-Release Register stores a 32-bit word or a 64-bit doubleword to a memory location, from a register. The instruction also has memory ordering semantics as described in Load-Acquire, Store-Release. For information about addressing modes, see Load/Store addressing modes.

It has encodings from 2 classes: No offset and Pre-index

No offset

integer t = UInt(Rt); integer n = UInt(Rn); boolean wback = FALSE; integer offset = 0; boolean rt_unknown = FALSE; constant integer elsize = 8 << UInt(size); constant integer datasize = elsize; boolean tagchecked = n != 31;

Pre-index
(FEAT_LRCPC3)

boolean wback = TRUE; integer t = UInt(Rt); integer n = UInt(Rn); constant integer datasize = 8 << UInt(size); integer offset = -1 * (1 << UInt(size)); boolean tagchecked = TRUE; boolean rt_unknown = FALSE; if n == t && n != 31 then Constraint c = ConstrainUnpredictable(Unpredictable_WBOVERLAPST); assert c IN {Constraint_NONE, Constraint_UNKNOWN, Constraint_UNDEF, Constraint_NOP}; case c of when Constraint_NONE rt_unknown = FALSE; // value stored is original value when Constraint_UNKNOWN rt_unknown = TRUE; // value stored is UNKNOWN when Constraint_UNDEF UNDEFINED; when Constraint_NOP EndOfInstruction();