Specify postfix to form name of file containing model VHDL architecture
'postfix'
Default: '_arch'.
Specify the postfix as a character vector. This option applies only if you direct HDL Coder™ to place the generated VHDL® entity and architecture code in separate files.
To set this property, use hdlset_param or makehdl. To view the property value, use hdlget_param.