utils/examples/magic_drc.tcl

# Copyright 2020 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
set ::env(DESIGN_NAME) openram_tc_1kb
drc off
lef read ../lef/sram_1rw1r_32_256_8_sky130_lp1.lef
load sram_1rw1r_32_256_8_sky130 -dereference
load openram_tc_core -dereference
load openram_tc_1kb -dereference

drc style drc(full)
drc euclidean on

set fout [open drc.log w]
set oscale [cif scale out]
set cell_name $::env(DESIGN_NAME)
magic::suspendall
puts stdout "\[INFO\]: Loading $cell_name\n"
flush stdout
load $cell_name
select top cell
drc check
set drcresult [drc listall why]


set count 0
puts $fout "$cell_name"
puts $fout "----------------------------------------"
foreach {errtype coordlist} $drcresult {
	puts $fout $errtype
	puts $fout "----------------------------------------"
	foreach coord $coordlist {
	    set bllx [expr {$oscale * [lindex $coord 0]}]
	    set blly [expr {$oscale * [lindex $coord 1]}]
	    set burx [expr {$oscale * [lindex $coord 2]}]
	    set bury [expr {$oscale * [lindex $coord 3]}]
	    set coords [format " %.3f %.3f %.3f %.3f" $bllx $blly $burx $bury]
	    puts $fout "$coords"
	    set count [expr {$count + 1} ]
	}
	puts $fout "----------------------------------------"
}

puts $fout "\[INFO\]: COUNT: $count"
puts $fout "\[INFO\]: Should be divided by 3 or 4"

puts $fout ""
close $fout

puts stdout "\[INFO\]: COUNT: $count"
puts stdout "\[INFO\]: Should be divided by 3 or 4"
puts stdout "\[INFO\]: DRC Checking DONE ($::env(DESIGN_NAME).drc)"
flush stdout

puts stdout "\[INFO\]: Saving mag view with DRC errors($::env(DESIGN_NAME).drc.mag)"
# WARNING: changes the name of the cell; keep as last step
save $::env(DESIGN_NAME).drc.mag
puts stdout "\[INFO\]: Saved"

exit 0