Answers Database M1.4 Map - FATAL_ERROR:x4kma:x4kmacarry.c:2842:1.122.12.8 - Illegal call to swap Record #4080 Product Family: Software Product Line: FPGA Implementation Product Part: map Product Version: 1.4. Problem Title: M1.4 Map - FATAL_ERROR:x4kma:x4kmacarry.c:2842:1.122.12.8 - Illegal call to swap Problem Description: Xilinx Software : Alliance 1.3 on Sun work station. Third Party Software: Synopsys Part being targeted : XC4036XL A case has been seen in M1.4 where a design fails in Map with the error message: Optimizing... FATAL_ERROR:x4kma:x4kmacarry.c:2842:1.122.12.8 - Illegal call to swap. Cannot move RAM to G because H1 pin is not free: I164/oh_we_reg/$1I13. Solution 1: This problem is fixed in the latest M1.4 Core Tools Update available on the Xilinx Download Area: Solaris: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sol17_m14.tar.Z SunOS ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sun17_m14.tar.Z HPUX: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_hp17_m14.tar.Z Win95/NT: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_nt17.zip End of Record #4080 - Last Modified: 08/18/98 18:32

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