some more fiddling

2015-11-22 19:02:47 +01:00
parent 60285097e3
commit 88e7b5776a
7 changed files with 59 additions and 18 deletions
--- a/libsrc/gamate/crt0.s
+++ b/libsrc/gamate/crt0.s
@@ -1 +1,16 @@
- 
+
+        .export         __STARTUP__ : absolute = 1      ; Mark as startup
+
+        .import reset, irq, nmi ; FIXME
+
+
+        .segment "STARTUP"
+
+checksum:
+        .word 0
+        .byte 1, 0, 1
+        .byte "COPYRIGHT BIT CORPORATION", 0, $ff
+        jmp     reset
+        jmp     nmi
+        jmp     irq
+