atari5200: fix COLOR defines' names

[cc65] / libsrc / atari / crt0.s

diff --git a/libsrc/atari/crt0.s b/libsrc/atari/crt0.s
index 87d7d036f34e99f3a6934cd844a4e3d465149e1a..97b7d7e95df3f344e66f5047770ecda27f1a0750 100644 (file)
--- a/libsrc/atari/crt0.s
+++ b/libsrc/atari/crt0.s
@@ -9,12 +9,13 @@
 ;
 
         .export         __STARTUP__ : absolute = 1      ; Mark as startup
-        .export         _exit, start
+        .export         _exit, start, excexit, SP_save
 
         .import         initlib, donelib
         .import         callmain, zerobss
         .import         __RESERVED_MEMORY__
         .import         __MAIN_START__, __MAIN_SIZE__
+        .import         __LOWCODE_RUN__, __LOWCODE_SIZE__
 .ifdef __ATARIXL__
         .import         __STACKSIZE__
         .import         sram_init
@@ -109,12 +110,12 @@ start:
 
 ; Call the module destructors. This is also the exit() entry.
 
-_exit:  jsr     donelib         ; Run module destructors
+_exit:  ldx     SP_save
+        txs                     ; Restore stack pointer
 
 ; Restore the system stuff.
 
-        ldx     SP_save
-        txs                     ; Restore stack pointer
+excexit:jsr     donelib         ; Run module destructors; 'excexit' is called from the exec routine
 
 ; Restore the left margin.
 
@@ -199,3 +200,11 @@ LMARGN_save:    .res    1
 .ifndef __ATARIXL__
 APPMHI_save:    .res    2
 .endif
+
+; ------------------------------------------------------------------------
+
+.segment "LOWCODE"       ; have at least one (empty) segment of LOWCODE, so that the next line works even if the program doesn't make use of this segment
+.assert (__LOWCODE_RUN__ + __LOWCODE_SIZE__ <= $4000 || __LOWCODE_RUN__ > $7FFF || __LOWCODE_SIZE__ = 0), warning, "'lowcode area' reaches into $4000..$7FFF bank memory window"
+; check for LOWBSS_SIZE = 0 not needed since the only file which uses LOWBSS (irq.s) also uses LOWCODE
+; check for LOWCODE_RUN > $7FFF is mostly for cartridges, where this segment is loaded high (into cart ROM)
+; there is a small chance that if the user loads the program really high, LOWCODE is above $7FFF, but LOWBSS is below -- no warning emitted in this case