resistor body bias

diff --git a/gds/user_analog_project_wrapper.gds b/gds/user_analog_project_wrapper.gds
index e2d832c..860bb54 100644
--- a/gds/user_analog_project_wrapper.gds
+++ b/gds/user_analog_project_wrapper.gds
Binary files differ

diff --git a/mag/.magicrc b/mag/.magicrc
new file mode 100644
index 0000000..7a175e8
--- /dev/null
+++ b/mag/.magicrc

@@ -0,0 +1,91 @@
+puts stdout "Sourcing design .magicrc for technology sky130A ..."
+
+# Put grid on 0.005 pitch.  This is important, as some commands don't
+# rescale the grid automatically (such as lef read?).
+
+set scalefac [tech lambda]
+if {[lindex $scalefac 1] < 2} {
+    scalegrid 1 2
+}
+
+# drc off
+drc euclidean on
+# Change this to a fixed number for repeatable behavior with GDS writes
+# e.g., "random seed 12345"
+catch {random seed}
+
+# Turn off the scale option on ext2spice or else it conflicts with the
+# scale in the model files.
+ext2spice scale off
+set PDK "sky130A"
+# Allow override of PDK path from environment variable PDKPATH
+if {[catch {set PDKPATH $env(PDKPATH)}]} {
+    #set PDKPATH "/usr/local/pdk/volare/sky130/build/7519dfb04400f224f140749cda44ee7de6f5e095/sky130A"
+    set PDKPATH "/home/andylithia/openmpw/pdk_1/sky130A"
+    # set PDKPATH "/home/andylithia/openmpw/pdk_1/sky130B"
+}
+# loading technology
+tech load $PDKPATH/libs.tech/magic/sky130A.tech
+
+# load device generator
+source $PDKPATH/libs.tech/magic/sky130A.tcl
+
+# load bind keys (optional)
+# source $PDKPATH/libs.tech/magic/sky130A-BindKeys
+
+# set units to lambda grid 
+snap lambda
+
+# set sky130 standard power, ground, and substrate names
+set VDD VPWR
+set GND VGND
+set SUB VSUBS
+
+# Allow override of type of magic library views used, "mag" or "maglef",
+# from environment variable MAGTYPE
+
+if {[catch {set MAGTYPE $env(MAGTYPE)}]} {
+   set MAGTYPE mag
+}
+
+# add path to reference cells
+if {[file isdir ${PDKPATH}/libs.ref/${MAGTYPE}]} {
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_pr
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_io
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hd
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hdll
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hs
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hvl
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_lp
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ls
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ms
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_osu_sc
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_osu_sc_t18
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_ml_xx_hd
+    addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_sram_macros
+} else {
+    addpath ${PDKPATH}/libs.ref/sky130_fd_pr/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_io/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hd/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hdll/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hs/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hvl/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_lp/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ls/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ms/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_osu_sc/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_osu_sc_t18/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_ml_xx_hd/${MAGTYPE}
+    addpath ${PDKPATH}/libs.ref/sky130_sram_macros/${MAGTYPE}
+}
+
+# add path to GDS cells
+
+# add path to IP from catalog.  This procedure defined in the PDK script.
+catch {magic::query_mylib_ip}
+# add path to local IP from user design space.  Defined in the PDK script.
+catch {magic::query_my_projects}
+
+# Lifehacks
+set Opts(crosshair) 1
+