From 6cccbf0a18341f4e3b70258c504d8508ef361721 Mon Sep 17 00:00:00 2001
From: ergz <emnlrodriguez@gmail.com>
Date: Wed, 23 Nov 2022 00:02:57 -0800
Subject: [PATCH] adds example for calling external C func from masm

---
 src/1_4.asm |  4 +++-
 src/1_5.asm | 21 +++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 src/1_5.asm

diff --git a/src/1_4.asm b/src/1_4.asm
index 6dcc777..5f599d0 100644
--- a/src/1_4.asm
+++ b/src/1_4.asm
@@ -10,4 +10,6 @@ main proc           ; the main procedure
     call asm_proc   ; call our proc
     ret
 main endp
-    end
\ No newline at end of file
+    end
+
+
diff --git a/src/1_5.asm b/src/1_5.asm
new file mode 100644
index 0000000..b42aa3a
--- /dev/null
+++ b/src/1_5.asm
@@ -0,0 +1,21 @@
+    option casemap:none
+
+    .data
+
+fmt_str byte 'Hello World!', 10, 0 ; here 10 is the newline feed
+
+    .code
+
+    externdef printf:proc
+
+    public asm_func
+
+asm_func proc
+    sub rsp, 56
+    lea rcx, fmt_str ; load the format string into the RCX register to be used by the printf
+    call printf
+    add rsp, 56
+    ret
+asm_func endp
+    
+    end
\ No newline at end of file