See Also

A Library Mapping File (.lmf) is used to map EDIF cells to corresponding Quartus^® II logic functions. These Quartus II functions are directly substituted for the EDIF cells when a file is opened or compiled in Quartus II.

An LMF includes statements that declare the names and input/output ports of Quartus II logic functions and corresponding EDIF cells.

When compiling EDIF Input Files (.edf), you can specify the LMF as inputs to the Compiler with in the EDIF Input Settings dialog box command.

The following example shows a sample LMF that maps a single function.

LIBRARY	 sample

% This LMF includes one entry that maps %
% Mentor Graphics® NOR3 to Quartus II NOR3 %

BEGIN
   FUNCTION nor3 (IN1, IN2, IN3)
      RETURNS (OUT)

   FUNCTION "$nor3" ("I0", "I1", "I2")
      RETURNS ("OUT")
END

LMFs have the following characteristics:

• The LIBRARY keyword, followed by the library name, occurs once at the beginning of the LMF. The remainder of the file consists of one or more pairs of FUNCTION-RETURNS statements that declare Quartus II logic functions and EDIF cells. An LMF must contain at least one pair of FUNCTION-RETURNS statements.
• Every two pairs of FUNCTION-RETURNS statements, which are enclosed in one BEGIN-END statement, represent a mapping between a Quartus II logic function and an EDIF cell. The Quartus II FUNCTION-RETURNS statement must come first.
• The Quartus II function's ports must correspond to the EDIF cell ports in order. The EDIF cell name and individual port names must be enclosed in double quotation marks (""). Within these double quotation marks, you may use any alphanumeric character except the percent symbol (%) and additional double quotation marks. If port names span multiple lines, no continuation character is required.
• EDIF cells that have more or fewer ports than Quartus II logic functions can still be mapped, as described in Mapping Unequal Numbers of Inputs & Outputs.
• LMFs are case-sensitive. The case for EDIF cell names and EDIF input/output pin lists within an LMF must match the case in the EDIF netlist.
• Comments must be enclosed in percent symbols (%). You must place comments anywhere outside of the mapping construct, i.e., before the BEGIN or after the END keyword. Nested comments are not allowed.
• Several different EDIF cells can be mapped to the same Quartus II logic function. All of the mappings must list the same inputs and outputs. A single EDIF cell cannot be mapped to multiple Quartus II logic functions; if an EDIF cell is mapped to multiple Quartus II logic functions, only the first instance of a mapping is used.

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