* Changed the way that Atmos programs are started.

- Put a BASIC-language stub at the beginning.
  - Removed the Autostart flag.

  Those changes make it easy to give command-line arguments to a program.

* Made the Atmos configure file accept a special symbol definition on ld65's command line.  We can use "__RAMEND__" to increase the amount of RAM that's available to programs.

libsrc/atmos/tapehdr.s

@@ -0,0 +1,30 @@
+;
+; Based on code by Debrune J<>r<EFBFBD>me <jede@oric.org>
+; 2013-08-15, Greg King
+;
+
+        ; The following symbol is used by the linker config. file
+        ; to force this module to be included into the output file.
+        .export __TAPEHDR__:abs = 1
+
+        .import __BASHDR_LOAD__, __ZPSAVE_LOAD__, __AUTORUN__, __PROGFLAG__
+
+
+; ------------------------------------------------------------------------
+; Oric cassette-tape header
+
+.segment        "TAPEHDR"
+
+        .byte   $16, $16, $16   ; Sync bytes
+        .byte   $24             ; Beginning-of-header marker
+
+        .byte   $00             ; $2B0
+        .byte   $00             ; $2AF
+        .byte   <__PROGFLAG__   ; $2AE Language flag ($00=BASIC, $80=machine code)
+        .byte   <__AUTORUN__    ; $2AD Auto-run flag ($C7=run, $00=only load)
+        .dbyt   __ZPSAVE_LOAD__ ; $2AB Address of end of file
+        .dbyt   __BASHDR_LOAD__ ; $2A9 Address of start of file
+        .byte   $00             ; $2A8
+
+        ; File name (a maximum of 17 characters), zero-terminated
+        .asciiz .sprintf("%u", .time)