moved cart header into seperate file, moved nmi stub into several file, tweaked linker config

2015-11-29 16:01:36 +01:00
parent 1893e24da9
commit c636675521
8 changed files with 53 additions and 50 deletions
--- a/libsrc/gamate/header.s
+++ b/libsrc/gamate/header.s
@@ -0,0 +1,16 @@
+        ; The following symbol is used by linker config to force the module
+        ; to get included into the output file
+        .export         __STARTUP__: absolute = 1
+
+        .import         Start, IRQStub, NMIStub
+
+
+        .segment "STARTUP"
+
+        .word 0                                         ; +00 checksum from 7000-7fff (simple 8bit adds)
+        .byte 1, 0, 1                                   ; +02 flags
+        .byte "COPYRIGHT BIT CORPORATION", 0, $ff       ; +05 copyright
+        ; system vectors
+        jmp     Start                                   ; +20 reset entry
+        jmp     NMIStub                                 ; +23 nmi entry
+        jmp     IRQStub                                 ; +26 irq entry (135 hz)