diff --git a/2018/mills/Makefile b/2018/mills/Makefile
index 1d3085fa8..f148d8edd 100644
--- a/2018/mills/Makefile
+++ b/2018/mills/Makefile
@@ -139,8 +139,16 @@ all: data ${TARGET}
 	clean clobber install love haste waste maker easter_egg \
 	sandwich supernova deep_magic magic charon pluto
 
+# Variable to decide if the emulator should save state (default no)
+#
+SAVE=0
+MAP=MAP_PRIVATE
+ifneq ($((SAVE)),0)
+	MAP=MAP_SHARED
+endif
+
 ${PROG}: ${PROG}.c rk05.bsd.fs
-	${CC} ${CFLAGS} -DI='"rk05.bsd.fs"' -DA=4096 -DS=0173030 -DW=MAP_PRIVATE -DT= -DX=5 -DY=128 \
+	${CC} ${CFLAGS} -DI='"rk05.bsd.fs"' -DA=4096 -DS=0173030 -DW=${MAP} -DT= -DX=5 -DY=128 \
 	      -DV=270 -DP='"89!>@@89T=@@89\"89DQ@K89$$89Q1@H0@@@P@1@@"' ${PROG}.c -o $@ ${LDFLAGS}
 
 rk05.bsd.fs: empty.fs.bz2 builddisk.bsd bsd.img.bz2
@@ -148,6 +156,10 @@ rk05.bsd.fs: empty.fs.bz2 builddisk.bsd bsd.img.bz2
 	${BZIP2} -dc empty.fs.bz2 > rk05.bsd.fs
 	${BZIP2} -dc bsd.img.bz2 | ./builddisk.bsd
 
+# NOTE: we don't set -DW=${MAP} here because it's already set to MAP_SHARED and
+# we don't want to break anything here. The default for the program itself is
+# MAP_PRIVATE but it's possible that if MAP is set to MAP_PRIVATE then having W
+# set to MAP_PRIVATE here could be a problem as it's meant to be MAP_SHARED.
 builddisk.bsd: ${PROG}.c
 	${CC} ${CFLAGS} -DI='"rk05.bsd.fs"' -DA=4096 -DS=0 -DW=MAP_SHARED -DT= -DX=0 -DY=0 -DV=270 \
 	    -DP='"Q@ 89D?A E@#?@$$D@H?<@E@$$8CA1@H8CJ4EH8CA1@L8CJ4FH)@!F@H%@$$1@H?@%89\"?<@89T89!Q@\"89$$89Q1@[%@#1@D<@ @EHO??@X@@@@@@@1@@"' \
@@ -158,6 +170,10 @@ rk05.v6.fs: empty.fs.bz2 builddisk.v6 v6.img.bz2
 	${BZIP2} -dc empty.fs.bz2 > rk05.v6.fs
 	${BZIP2} -dc v6.img.bz2 | ./builddisk.v6
 
+# NOTE: we don't set -DW=${MAP} here because it's already set to MAP_SHARED and
+# we don't want to break anything here. The default for the program itself is
+# MAP_PRIVATE but it's possible that if MAP is set to MAP_PRIVATE then having W
+# set to MAP_PRIVATE here could be a problem as it's meant to be MAP_SHARED.
 builddisk.v6: ${PROG}.c
 	${CC} ${CFLAGS} -DI='"rk05.v6.fs"' -DA=4096 -DS=0 -DW=MAP_SHARED -DT= -DX=0 -DY=0 -DV=270 \
 	    -DP='"Q@ 89D?A E@#?@$$D@H?<@E@$$8CA1@H8CJ4EH8CA1@L8CJ4FH)@!F@H%@$$1@H?@%89\"?<@89T89!Q@\"89$$89Q1@[%@#1@D<@ @EHO??@X@@@@@@@1@@"' \
@@ -170,24 +186,37 @@ empty.fs.bz2: boot.dat
 	${BZIP2} empty.fs
 
 v0: ${PROG}.c Makefile v0.image.fs
-	@echo "This IOCCC25 Makefile preserves the state of v0.image.fs at the time it won."
-	@echo "If you want to look for v0.image.fs updates, try: ${CURL} ${IMAGE_FS_URL} -o v0.image.fs"
-	@echo "Warning: any updates from ${IMAGE_FS_URL} are unofficial and are not part of the IOCCC."
-	${CC} ${CFLAGS} -DI='"v0.image.fs"' -DA=4096 -DS=0 -DW=MAP_PRIVATE \
+	${CC} ${CFLAGS} -DI='"v0.image.fs"' -DA=4096 -DS=0 -DW=${MAP} \
 	    -DT="INLCR|ICRNL,0,0,ECHO" -DX=5 -DY=128 -DV=200 \
 	    -DP='"89!?@@89T=@@89\"Q@M89DQ@L89$$89Q1@I0A@@P@X@@1@@"' ${PROG}.c -o $@
+	@echo ""
+	@echo "This IOCCC25 Makefile preserves the state of v0.image.fs at the time it won."
+	@echo "If you want to look for v0.image.fs updates, try:"
+	@echo ""
+	@echo "    ${CURL} ${IMAGE_FS_URL} -o v0.image.fs"
+	@echo ""
+	@echo "Warning: any updates from ${IMAGE_FS_URL}"
+	@echo "are unofficial and are not part of this IOCCC entry."
+	@echo ""
 
 v6: empty.fs.bz2 builddisk.v6 v6.img.bz2 rk05.v6.fs
-	${CC} ${CFLAGS} -DI='"rk05.v6.fs"' -DA=4096 -DS=0173030 -DW=MAP_PRIVATE -DT= -DX=5 -DY=128 \
+	${CC} ${CFLAGS} -DI='"rk05.v6.fs"' -DA=4096 -DS=0173030 -DW=${MAP} -DT= -DX=5 -DY=128 \
 	      -DV=270 -DP='"89!>@@89T=@@89\"89DQ@K89$$89Q1@H0@@@P@1@@"' ${PROG}.c -o $@ ${LDFLAGS}
 
 v6.img.bz2: v6.tape.gz
-	@echo "This IOCCC25 Makefile preserves the state of v6.tape.gz at the time it won."
-	@echo "If you want to look for v6.tape.gz updates, try: ${CURL} ${V6_TAPE_URL} -o v6.tape.gz"
-	@echo "Warning: any updates from ${V6_TAPE_URL} are unofficial and are not part of the IOCCC."
 	${RM} -f v6.tape
 	${GZIP_PROG} -c -d v6.tape.gz | ${DD} of=v6.img count=4000 skip=100
 	${BZIP2} v6.img
+	@echo ""
+	@echo "This IOCCC25 Makefile preserves the state of v6.tape.gz at the time it won."
+	@echo "If you want to look for v6.tape.gz updates, try:"
+	@echo ""
+	@echo "    ${CURL} ${V6_TAPE_URL} -o v6.tape.gz"
+	@echo ""
+	@echo "Warning: any updates from ${V6_TAPE_URL}"
+	@echo "are unofficial and are not part of this IOCCC entry."
+	@echo ""
+
 
 # alternative executable
 #
diff --git a/2018/mills/README.md b/2018/mills/README.md
index 1f0dfff8e..a2bf970e8 100644
--- a/2018/mills/README.md
+++ b/2018/mills/README.md
@@ -4,12 +4,25 @@
 make
 ```
 
+If you wish to save state so that you can run the program and keep files changed
+(for instance you don't want to compile `mullender.c` again) you can compile it
+like:
+
+```sh
+make clobber SAVE=1 all
+```
+
+Make sure that if you do add a file (including by compiling code) that before
+you exit (ctrl-e) you type in `sync`! Otherwise the file might not exist or it
+will be corrupt if it does.
+
 
 ### Bugs and (Mis)features:
 
 The current status of this entry is:
 
 ```
+STATUS: known bug - please help us fix
 STATUS: INABIAF - please **DO NOT** fix
 ```
 
diff --git a/bugs.md b/bugs.md
index 6e1ea7d7c..8a5cd26b4 100644
--- a/bugs.md
+++ b/bugs.md
@@ -3185,10 +3185,25 @@ but this is expected and the file `ioccc.html` will be generated properly.
 
 ## 2018 mills
 
-### STATUS: INABIAF - please **DO NOT** fix
+### STATUS: known bug - please help us fix
 ### Source code: [2018/mills/prog.c](2018/mills/prog.c)
 ### Information: [2018/mills/README.md](2018/mills/README.md)
 
+After exiting the program (with ctrl-e) if you try running it again you will
+likely see:
+
+```
+>bootT5pw
+         ]h_	8D3[]
+```
+
+where `[]` is the cursor. When this happens if you hit enter (this is necessary
+or else it'll happen again) and then exit again (ctrl-e) and run `prog` again
+it'll be okay.
+
+
+### STATUS: INABIAF - please **DO NOT** fix
+
 The author stated that if you make a typo it can happen that the boot loader can
 crash and halt. If this is the case type ctrl-e to quit the emulator and try
 again.
@@ -3198,7 +3213,11 @@ do this you should type `make clobber all` and try again.
 
 Cody caused a funny problem where it showed `ERROR` after each command. The
 solution was to hit ctrl-e and start again. He does not know if this is what was
-referred to by the author though he doesn't think he made a typo either.
+referred to by the author but there was likely no typo involved.
+
+Cody notes that if you are using the saved mode you must type `sync` prior to
+exiting the program or else the next time you run it the file will not exist (or
+in the case of compiled code it won't be executable).
 
 
 ## 2018 vokes
diff --git a/thanks-for-help.md b/thanks-for-help.md
index fa1cb42f8..c6a66af9e 100644
--- a/thanks-for-help.md
+++ b/thanks-for-help.md
@@ -4066,6 +4066,18 @@ that's probably true: let's just say that for the IOCCC I'm (Cody) a weasel! :-)
 Cody also added the [try.sh](/2018/hou/try.sh) script.
 
 
+## <a name="2018_mills"></a>[2018/mills](/2018/mills/prog.c) ([README.md](/2018/mills/README.md))
+
+[Cody](#cody), based on the author's remarks, made it possible to save state
+between runs of the program so that one can resume where they left off. It
+should be noted that there is a bug in the entry (irrespective of save state
+option) where running `./prog` twice in a row involves having to hit (the second
+run) enter and then exit and then start the program again. Also if you do add a
+file you should run `sync` prior to exiting or else the file might not exist or
+it might be corrupt. See [2018/mills in bugs.md](/bugs.md#2018-mills) for more
+details on the bug.
+
+
 ## <a name="2018_poikola"></a>[2018/poikola](/2018/poikola/prog.c) ([README.md[(/2018/poikola/README.md))
 
 [Cody](#cody) added the missing `docs` rule to the Makefile that forms a PDF