Restored the old C-stack initiation code.

I had forgotten that the stack must be put below the CBM overlays.
2015-10-08 05:05:48 -04:00
parent 8a880580dc
commit ca70700a0b
3 changed files with 6 additions and 5 deletions
--- a/libsrc/c64/crt0.s
+++ b/libsrc/c64/crt0.s
@@ -8,7 +8,8 @@
        .import         initlib, donelib
        .import         moveinit, zerobss, callmain
        .import         BSOUT
-        .import         __HIMEM__                       ; from configure file
+        .import         __RAM_START__, __RAM_SIZE__     ; Linker generated
+        .import         __STACKSIZE__                   ; from configure file
        .importzp       ST

        .include        "zeropage.inc"
@@ -105,8 +106,8 @@ L1:     lda     sp,x

 ; Set up the stack.

-        lda     #<__HIMEM__
-        ldx     #>__HIMEM__
+        lda     #<(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
+        ldx     #>(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
        sta     sp
        stx     sp+1            ; Set argument stack ptr