adjusted some addresses, added more stubs

c64/kernal/stubs/e566.home_cursor.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()

c64/kernal/stubs/e566.interop

@@ -0,0 +1,5 @@
+
+This is a well-known address, needed even for some BASIC programming - it's a common target for a SYS command. See for example here:
+
+- http://ready64.org/articoli/_files/043_pokesc64.txt
+  sys 58726 - CLR/HOME

c64/kernal/stubs/e6b6.advance_cursor.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()

c64/kernal/stubs/e6b6.interop

@@ -0,0 +1,5 @@
+
+This is a well-known address, needed even for some BASIC programming - it's a common target for a SYS command. See for example here:
+
+- http://ready64.org/articoli/_files/043_pokesc64.txt
+  sys 59062 - Advance Cursor

c64/kernal/stubs/e701.interop

@@ -0,0 +1,5 @@
+
+This is a well-known address, needed even for some BASIC programming - it's a common target for a SYS command. See for example here:
+
+- http://ready64.org/articoli/_files/043_pokesc64.txt
+  sys 59137 - Previous Line

c64/kernal/stubs/e701.previous_line.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()

c64/kernal/stubs/e8ea.interop

@@ -0,0 +1,5 @@
+
+This is a well-known address, needed even for some BASIC programming - it's a common target for a SYS command. See for example here:
+
+- http://ready64.org/articoli/_files/043_pokesc64.txt
+  sys 59626 - Scrolls a Line

c64/kernal/stubs/e8ea.scroll_line.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()

c64/kernal/stubs/e9ff.clear_line.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()

c64/kernal/stubs/e9ff.interop

@@ -0,0 +1,5 @@
+
+This is a well-known address, needed even for some BASIC programming - it's a common target for a SYS command. See for example here:
+
+- http://ready64.org/articoli/_files/043_pokesc64.txt
+  sys 59903 - Clears Line of Text

c64/kernal/stubs/fd90.interop

@@ -0,0 +1,4 @@
+
+This routine is probably used by many cartridges and other software to initialize parts of the system. At least the UCart uses it - see here:
+
+- https://www.elektroda.pl/rtvforum/topic3293027.html

c64/kernal/stubs/fd90.unknown.s

@@ -0,0 +1,4 @@
+
+// XXX provide documentation and implementation
+
+    STUB_IMPLEMENTATION()