Scanlab RTC6 PCIe Board - Set_Char_Pointer

RTC6 boards
Doc. Rev. 1.0.21 en-US
10 RTC6 Commands
618
innovators for industry
Ctrl Command set_char_pointer
Function Stores the absolute start address of a command list in the internal management table for
indexed characters.
Call set_char_pointer( Char, Pos )
Parameters Char Index of the indexed character whose starting address Pos should be entered
in the management table. As an unsigned 32-bit value.
Allowed value range: [0…1023].
The same applies as for load_char:
Char = character set number × 256 + ASCII number of the character
(character sets are numbered 0 to 3).
Pos Absolute start address. As an unsigned 32-bit value.
Allowed value range: [0…(2
23
–1)].
Comments • If Char > 1023 and/or Pos > (2
23
–1), then set_char_pointer is not executed
(get_last_error return code RTC6_PARAM_ERROR ).
• The set_char_pointer command can be used for referencing an indexed character. It
thereby becomes an indexed character that is protectable by save_disk/load_disk
and/or callable by the index.
• set_char_pointer can also be used to reference anew an indexed subroutine, character
or text string so that it can also be called by a second index. Here, it is preferable to use
the copy_dst_src command for index management.
• The start addresses of command lists that are to be referenced with set_char_pointer
can be queried by get_input_pointer before saving the command lists.
• set_char_pointer only stores starting addresses in the internal management table. An
indexed character only gains protection by a subsequent save_disk/load_disk
command.
• Pos should not be an arbitrary address within a list. Instead, it should be the starting
address of an actually existing subroutine that has been finalized by list_return and
does not contain set_end_of_list.
RTC4RTC6 New command.
RTC5RTC6 Unchanged functionality.
Version info Available as of DLL 600, OUT 600, RBF 600.
References load_char