Added crt0 to none.lib

2018-01-04 12:07:35 +01:00
parent 14909f12fe
commit 98b2b2544d
2 changed files with 26 additions and 0 deletions
--- a/libsrc/none/crt0.s
+++ b/libsrc/none/crt0.s
@@ -0,0 +1,25 @@
+       .export         _exit
+       .export         __STARTUP__ : absolute = 1      ; Mark as startup
+       .import         zerobss, _main
+       .import         initlib, donelib
+       .import         __MAIN_START__, __MAIN_SIZE__   ; Linker generated
+       .import         __STACKSIZE__                   ; Linker generated
+
+       .include "zeropage.inc"
+
+       .segment "STARTUP"
+
+       cld
+       ldx #$FF
+       txs
+       lda #<(__MAIN_START__ + __MAIN_SIZE__ + __STACKSIZE__)
+       ldx #<(__MAIN_START__ + __MAIN_SIZE__ + __STACKSIZE__)
+       sta sp
+       stx sp+1
+       jsr zerobss
+       jsr initlib
+       jsr _main
+_exit: pha
+       jsr donelib
+       pla
+       brk