priority.vwf

这是自己编写的一个优先编码器程序

/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/

/*
Copyright (C) 1991-2008 Altera Corporation
Your use of Altera Corporation's design tools, logic functions 
and other software and tools, and its AMPP partner logic 
functions, and any output files from any of the foregoing 
(including device programming or simulation files), and any 
associated documentation or information are expressly subject 
to the terms and conditions of the Altera Program License 
Subscription Agreement, Altera MegaCore Function License 
Agreement, or other applicable license agreement, including, 
without limitation, that your use is for the sole purpose of 
programming logic devices manufactured by Altera and sold by 
Altera or its authorized distributors.  Please refer to the 
applicable agreement for further details.
*/

HEADER
{
	VERSION = 1;
	TIME_UNIT = ns;
	DATA_OFFSET = 0.0;
	DATA_DURATION = 10000.0;
	SIMULATION_TIME = 0.0;
	GRID_PHASE = 0.0;
	GRID_PERIOD = 10.0;
	GRID_DUTY_CYCLE = 50;
}

SIGNAL("a")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("a[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "a";
}

SIGNAL("a[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "a";
}

SIGNAL("a[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "a";
}

SIGNAL("a[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "a";
}

SIGNAL("valid")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("y")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 2;
	LSB_INDEX = 0;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("y[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "y";
}

SIGNAL("y[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "y";
}

TRANSITION_LIST("a[3]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 1280.0;
		LEVEL 1 FOR 1600.0;
		LEVEL 0 FOR 7120.0;
	}
}

TRANSITION_LIST("a[2]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 3200.0;
		LEVEL 1 FOR 1600.0;
		LEVEL 0 FOR 5200.0;
	}
}

TRANSITION_LIST("a[1]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 1 FOR 1280.0;
		LEVEL 0 FOR 8720.0;
	}
}

TRANSITION_LIST("a[0]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL 0 FOR 4800.0;
		LEVEL 1 FOR 1600.0;
		LEVEL 0 FOR 3600.0;
	}
}

TRANSITION_LIST("valid")
{
	NODE
	{
		REPEAT = 1;
		LEVEL X FOR 10000.0;
	}
}

TRANSITION_LIST("y[1]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL X FOR 10000.0;
	}
}

TRANSITION_LIST("y[0]")
{
	NODE
	{
		REPEAT = 1;
		LEVEL X FOR 10000.0;
	}
}

DISPLAY_LINE
{
	CHANNEL = "a";
	EXPAND_STATUS = EXPANDED;
	RADIX = ASCII;
	TREE_INDEX = 0;
	TREE_LEVEL = 0;
	CHILDREN = 1, 2, 3, 4;
}

DISPLAY_LINE
{
	CHANNEL = "a[3]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 1;
	TREE_LEVEL = 1;
	PARENT = 0;
}

DISPLAY_LINE
{
	CHANNEL = "a[2]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 2;
	TREE_LEVEL = 1;
	PARENT = 0;
}

DISPLAY_LINE
{
	CHANNEL = "a[1]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 3;
	TREE_LEVEL = 1;
	PARENT = 0;
}

DISPLAY_LINE
{
	CHANNEL = "a[0]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 4;
	TREE_LEVEL = 1;
	PARENT = 0;
}

DISPLAY_LINE
{
	CHANNEL = "valid";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 5;
	TREE_LEVEL = 0;
}

DISPLAY_LINE
{
	CHANNEL = "y";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 6;
	TREE_LEVEL = 0;
	CHILDREN = 7, 8;
}

DISPLAY_LINE
{
	CHANNEL = "y[1]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 7;
	TREE_LEVEL = 1;
	PARENT = 6;
}

DISPLAY_LINE
{
	CHANNEL = "y[0]";
	EXPAND_STATUS = COLLAPSED;
	RADIX = ASCII;
	TREE_INDEX = 8;
	TREE_LEVEL = 1;
	PARENT = 6;
}

TIME_BAR
{
	TIME = 7450;
	MASTER = TRUE;
}
;