1 files changed, 30 insertions, 0 deletions
diff --git a/sw/z80/crt0.s b/sw/z80/crt0.s
new file mode 100644
index 0000000..d0ae3ca
--- /dev/null
+++ b/sw/z80/crt0.s
@@ -0,0 +1,30 @@
+    .area _HEADER (ABS)
+    ;; reset vector
+    .org 0
+    jp init
+    
+    .org 0x08
+    reti
+    .org 0x10
+    reti
+    .org 0x18
+    reti
+    .org 0x20
+    reti
+    .org 0x28
+    reti
+    .org 0x30
+    reti
+    .org 0x38
+    reti
+
+    .org 0x100
+
+init:
+    ;; set stack
+    ld sp,#0xFFFF
+
+    ;; call C main function
+    call _main
+
+.globl _main