#!/bin/bash

set -ex

mkdir -p colbuf_io_lm4k.work
cd colbuf_io_lm4k.work

glb_pins="A3 A4 D2 E2 E5 G3"

pins="
  A1 A2 A3 A4 A5 A6 A7
  B1 B2    B4    B6 B7
  C1    C3 C4    C6 C7
  D1 D2 D3       D6 D7
  E1 E2 E3 E4 E5    E7
     F2 F3 F4       F7
        G3
"
pins="$( echo $pins )"

for pin in $pins; do
	pf="colbuf_io_lm4k_$pin"
	gpin=$( echo $glb_pins | tr ' ' '\n' | grep -v $pin | sort -R | head -n1; )
	cat > ${pf}.v <<- EOT
		module top (input clk, data, output pin);
			SB_IO #(
				.PIN_TYPE(6'b 0101_00)
			) pin_obuf (
				.PACKAGE_PIN(pin),
				.OUTPUT_CLK(clk),
				.D_OUT_0(data)
			);
		endmodule
	EOT
	echo "set_io pin $pin" > ${pf}.pcf
	echo "set_io clk $gpin" >> ${pf}.pcf
	ICEDEV=lm4k-cm49 bash ../../icecube.sh ${pf}.v > ${pf}.log 2>&1
	../../../icebox/icebox_explain.py ${pf}.asc > ${pf}.exp
	rm -rf ${pf}.tmp
done