M .gitignore → .gitignore

@@ -5,5 +5,6 @@ *.img
 *.o
 *.bin
 img-contents/*
+*.png
 
 .vscode

A binimg.py

@@ -0,0 +1,38 @@
+import png
+import sys
+import getopt
+
+def main(args):
+    width = 128
+    infile = ""
+    outfile = ""
+
+    opts, args = getopt.getopt(args, "i:w:o:")
+    for opt, arg in opts:
+        if opt == '-i':
+            infile = arg
+        elif opt == '-o':
+            outfile = arg
+        elif opt == '-w':
+            width = int(arg)
+        else:
+            print("ERROR: wrong argument format")
+            return
+    
+    print(width)
+    print(infile)
+    print(outfile)
+
+    with open(infile, mode="rb") as f:
+        bin_data = f.read()
+
+    rows = []
+
+    while len(bin_data) > 0:
+        rows = rows + [ bin_data[0:width-1] ]
+        bin_data = bin_data[width:]
+
+    png.from_array(rows, 'L').save(outfile)
+
+if __name__ == "__main__":
+   main(sys.argv[1:])

M makefile → makefile

@@ -83,6 +83,7 @@ > parted $@ set 1 boot on
 > dd if=$< of=$@ seek=8 conv=notrunc
 > dd bs=1 if=$(LOCAL_BUILD)/boot.bin of=$@ count=446 conv=notrunc
 > dd if=$(LOCAL_BUILD)/boot.bin of=$@ skip=1 seek=1 count=7 conv=notrunc
+> python3 binimg.py -w 256 -i $(GLOBAL_BUILD)/cedos.img -o $(GLOBAL_BUILD)/cedos.png
 > parted $@ print list all
 # > $(LD) 		$(OBJECTS) -T link.txt -Map=$(LOG_DIR)/bin_mapfile.txt --oformat binary --nostdlib  -o $@