syscall macros

1 files changed, 8 insertions, 1 deletions

diff --git a/jefs.s b/jefs.s
index 1919416..d698f13 100644
--- a/jefs.s
+++ b/jefs.s
@@ -1,7 +1,14 @@
 ; jewelforth
+
+;; syscall
+%assign	__NR_read	0
+%assign	__NR_write	1
+%assign	__NR_brk	12
+%assign	__NR_exit	60
+
 section .text
 global _start
 _start:
 	mov rdi, 0
-	mov rax, 60
+	mov rax, __NR_exit
 	syscall