Hi All,

Just wanted to know if anyone has experienced any problems with Xilinx
XST when declaring a constant record in VHDL.

Below is some, what I hope to be valid, VHDL, that makes XST fail and
spit out a Internal Error. I'm using ISE 7.1 (SP4) running on a Linux Box.

Is this really an XST bug/problem/deficiency? Would be great to hear
from any 8.1 users to see if this is still a problem.

The Error:
INTERNAL_ERROR:Xst:cmain.c:3022:1.146.4.1 - To resolve this error,
please consult the Answers Database and other online resources at
http://support.xilinx.com

The VHDL:
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;

entity Test is
end entity Test;

architecture General of Test is

type SNAPTYPE_ALU_FLAGS is record
zero : std_logic;
negative : std_logic;
carryBorrow : std_logic;
overflow : std_logic;
end record SNAPTYPE_ALU_FLAGS;

type SNAPTYPE_INTERNAL_FLAGS is record
aluFlags : SNAPTYPE_ALU_FLAGS;
equalityTests : std_logic_vector(2 downto 0);
globalInterruptEn : std_logic;
end record SNAPTYPE_INTERNAL_FLAGS;

constant SNAP_FLAGS_RESET : SNAPTYPE_INTERNAL_FLAGS :=
((zero => '0', negative => '0', carryBorrow => '0', overflow => '0'),
equalityTests => b"000", globalInterruptEn => '0');

begin
end General;


Cheers
Andy

--
Dr. Andrew Greensted Department of Electronics
Bio-Inspired Engineering University of York, YO10 5DD, UK

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