From 2084054d3d60c2e02ac24d708ad88bb4630c9e1a Mon Sep 17 00:00:00 2001
From: Byron Lathi <bslathi19@gmail.com>
Date: Fri, 6 Oct 2023 06:48:47 -0700
Subject: [PATCH] Add script for creating verilog filesystem image

---
 sw/.gitignore                     |  3 +++
 sw/script/create_verilog_image.sh | 42 +++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 sw/script/create_verilog_image.sh

diff --git a/sw/.gitignore b/sw/.gitignore
index ec73f2b..5e3b75b 100644
--- a/sw/.gitignore
+++ b/sw/.gitignore
@@ -53,3 +53,6 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+# Filesystem Images
+*.fat
diff --git a/sw/script/create_verilog_image.sh b/sw/script/create_verilog_image.sh
new file mode 100644
index 0000000..e95ce0b
--- /dev/null
+++ b/sw/script/create_verilog_image.sh
@@ -0,0 +1,42 @@
+
+#!/bin/bash
+
+BOOTLOADER=../bios/bootloader.bin
+FILE=fs.fat
+
+TMPMOUNT=/tmp/lo
+FSDIR=../fsdir
+
+V=-v
+
+# Smallest number of blocks where mkfs doesn't complain
+BLOCKS=33296
+
+rm $FILE
+
+echo "$(tput bold setaf 11)Creating Filesystem$(tput sgr 0)"
+mkfs.vfat $V -I -F32 -C $FILE -n SUPER6502 $BLOCKS
+echo
+
+echo "$(tput bold setaf 11)Modifying Boot Sector$(tput sgr 0)"
+dd if=$BOOTLOADER of=$FILE bs=1 conv=notrunc count=11 $STATUS
+dd if=$BOOTLOADER of=$FILE bs=1 conv=notrunc count=380 seek=71 skip=71 $STATUS
+
+echo "$(tput bold setaf 11)Mounting Device$(tput sgr 0)"
+mkdir $V -p $TMPMOUNT
+sudo mount $FILE $TMPMOUNT
+echo
+
+echo "$(tput bold setaf 11)Copying Files$(tput sgr 0)"
+sudo cp $V -r $FSDIR/* $TMPMOUNT
+echo
+
+echo "$(tput bold setaf 11)Unmounting Device$(tput sgr 0)"
+sudo umount $V $FILE
+rmdir $V $TMPMOUNT
+echo
+
+echo "$(tput bold setaf 11)Converting Image to Verilog$(tput sgr 0)"
+objcopy --input-target=binary --output-target=verilog $FILE $FILE.hex
+echo "$(tput bold setaf 10)Done!$(tput sgr 0)"
+