diff --git a/libsrc/apple2/crt0.s b/libsrc/apple2/crt0.s
index 42e26c27b..4b9a59153 100644
--- a/libsrc/apple2/crt0.s
+++ b/libsrc/apple2/crt0.s
@@ -10,6 +10,7 @@
 
         .import         initlib, _exit
         .import         zerobss, callmain
+        .import         bltu2
         .import         __ONCE_LOAD__, __ONCE_SIZE__    ; Linker generated
         .import         __LC_START__, __LC_LAST__       ; Linker generated
 
@@ -93,6 +94,7 @@ basic:  lda     HIMEM
         ; Call the module constructors.
         jsr     initlib
 
+        ; Copy the LC segment to its destination
         ; Switch in LC bank 2 for W/O.
         bit     $C081
         bit     $C081
@@ -120,7 +122,7 @@ basic:  lda     HIMEM
 
         ; Call into Applesoft Block Transfer Up -- which handles zero-
         ; sized blocks well -- to move the content of the LC memory area.
-        jsr     $D39A           ; BLTU2
+        jsr     bltu2           ; BLTU2
 
         ; Switch in LC bank 2 for R/O and return.
         bit     $C080
diff --git a/libsrc/apple2/extra/lc-copy-memcpy.s b/libsrc/apple2/extra/lc-copy-memcpy.s
new file mode 100644
index 000000000..c4dc8d8ef
--- /dev/null
+++ b/libsrc/apple2/extra/lc-copy-memcpy.s
@@ -0,0 +1,33 @@
+;
+; Colin Leroy-Mira, 06.03.2025
+;
+; Copy the LC segment from the end of the binary to the Language Card
+; using _memcpy. This allows running apple2 programs on the original
+; Integer ROM Apple ][.
+;
+
+        .export         bltu2
+
+        .import         _memcpy, pushax
+        .import         __ONCE_LOAD__, __ONCE_SIZE__    ; Linker generated
+        .import         __LC_START__, __LC_LAST__       ; Linker generated
+
+        .segment        "ONCE"
+
+bltu2:
+        ; Get the destination start address.
+        lda     #<__LC_START__
+        ldx     #>__LC_START__
+        jsr     pushax
+
+        ; Get the source start address.
+        lda     #<(__ONCE_LOAD__ + __ONCE_SIZE__)
+        ldx     #>(__ONCE_LOAD__ + __ONCE_SIZE__)
+        jsr     pushax
+
+        ; Set the length
+        lda     #<(__LC_LAST__ - __LC_START__)
+        ldx     #>(__LC_LAST__ - __LC_START__)
+
+        ; And do the copy
+        jmp     _memcpy
diff --git a/libsrc/apple2/lc-copy-applesoft.s b/libsrc/apple2/lc-copy-applesoft.s
new file mode 100644
index 000000000..70a04431d
--- /dev/null
+++ b/libsrc/apple2/lc-copy-applesoft.s
@@ -0,0 +1,9 @@
+;
+; Oliver Schmidt, 15.09.2009
+;
+; Copy the LC segment from the end of the binary to the Language Card
+; using AppleSoft's BLTU2 routine.
+;
+        .export         bltu2
+
+bltu2 := $D39A