Add new code

Signed-off-by: Carlos Maiolino <[email protected]>

1 files changed, 25 insertions, 0 deletions

diff --git a/PGU/CHAP8/helloworld-nolib.s b/PGU/CHAP8/helloworld-nolib.s
new file mode 100644
index 0000000..83d52ce
--- /dev/null
+++ b/PGU/CHAP8/helloworld-nolib.s
@@ -0,0 +1,25 @@
+# Write "hello world" and exit
+
+.include "linux.s"
+
+.section .data
+	helloworld:
+		.ascii "hello world\n"
+	helloworld_end:
+
+	.equ helloworld_len, helloworld_end - helloworld
+
+.section .text
+
+.globl _start
+
+_start:
+	movq $STDOUT, %rdi
+	movq $helloworld, %rsi
+	movq $helloworld_len, %rdx
+	movq $SYS_WRITE, %rax
+	syscall
+
+	movq $0, %rdi
+	movq $SYS_EXIT, %rax
+	syscall