Identifiers are strings that describe labels, pattern names, opcodes, and time sets. Names must begin with an ASCII letter or underscore (_) and are limited to A-Z, a-z, 0-9, or _ characters.

The following keywords are currently reserved identifiers. Future releases might include additional reserved identifiers.

  • call
  • capture
  • capture_start
  • capture_stop
  • clear_seqflag
  • clear_signal
  • edge_multiplier
  • end_loop
  • event[0-3]
  • export
  • exit_loop
  • exit_loop_if
  • failed
  • file_format_version
  • halt
  • import
  • jump
  • jump_if
  • keep_alive
  • keep_alive_pattern
  • match
  • matched
  • pattern
  • pulse_signal
  • reg[0-15]
  • repeat
  • reset_trigger
  • return
  • seqflag[0-3]
  • scan
  • scan_in
  • scan_out
  • set_loop
  • set_seqflag
  • set_signal
  • source
  • source_d_replace
  • source_start
  • timeset
  • write_reg