Renamed RAM to MAIN for all disk based targets.

The name RAM doesn't make much sense in general for a memeory area because i.e. the zero page is for sure RAM but is not part of the memory area named RAM.

For disk based targets it makes sense to put the disk file more into focus and here MAIN means the main part of the file - in contrast to some header.

Only for ROM based targets the name RAM is kept as it makes sense to focus on the difference between RAM and ROM.

libsrc/lynx/bllhdr.s

@@ -4,7 +4,7 @@
 ; This header is required for BLL builds.
 ;
         .import         __BSS_LOAD__
-        .import         __RAM_START__
+        .import         __MAIN_START__
         .export         __BLLHDR__: absolute = 1
  
 ; ------------------------------------------------------------------------
@@ -12,8 +12,7 @@
 
         .segment "BLLHDR"
         .word   $0880
-        .dbyt   __RAM_START__
-        .dbyt   __BSS_LOAD__ - __RAM_START__ + 10
+        .dbyt   __MAIN_START__
+        .dbyt   __BSS_LOAD__ - __MAIN_START__ + 10
         .byte   $42,$53
         .byte   $39,$33
-

libsrc/lynx/crt0.s

@@ -22,7 +22,7 @@
         .import         zerobss
         .import         callmain
         .import         _main
-        .import         __RAM_START__, __RAM_SIZE__, __STACKSIZE__
+        .import         __MAIN_START__, __MAIN_SIZE__, __STACKSIZE__
 
         .include        "zeropage.inc"
         .include        "extzp.inc"
@@ -79,10 +79,10 @@ MikeyInitData:  .byte $9e,$18,$68,$1f,$00,$00,$00,$00,$00,$ff,$1a,$1b,$04,$0d,$2
 
 ; Set up the stack.
 
-        lda     #<(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
+        lda     #<(__MAIN_START__ + __MAIN_SIZE__ + __STACKSIZE__)
+        ldx     #>(__MAIN_START__ + __MAIN_SIZE__ + __STACKSIZE__)
         sta     sp
-        lda     #>(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
-        sta     sp+1
+        stx     sp+1
 
 ; Init Mickey.
 

libsrc/lynx/defdir.s

@@ -5,7 +5,7 @@
 ;
         .include "lynx.inc"
         .import         __STARTOFDIRECTORY__
-        .import         __RAM_START__
+        .import         __MAIN_START__
         .import         __CODE_SIZE__, __DATA_SIZE__, __RODATA_SIZE__
         .import         __STARTUP_SIZE__, __ONCE_SIZE__, __LOWCODE_SIZE__
         .import         __BLOCKSIZE__
@@ -25,6 +25,6 @@ len0 = __STARTUP_SIZE__ + __ONCE_SIZE__ + __CODE_SIZE__ + __DATA_SIZE__ + __RODA
         .byte   <block0
         .word   off0 & (__BLOCKSIZE__ - 1)
         .byte   $88
-        .word   __RAM_START__
+        .word   __MAIN_START__
         .word   len0
 __DIRECTORY_END__: