The assembly syntax for a register file entry is the “short” name for a TIE register file followed by the index into that register file. For example, the general-purpose
register file has a short name of
, so these registers are named
. As a special feature,
is also supported as a synonym for
. Additional registers may be added by processor configuration options and by designer-defined TIE extensions. An initial ‘
’ character is optional in all register names.