1 files changed, 47 insertions, 0 deletions
diff --git a/util/romcc/tests/simple_test15.c b/util/romcc/tests/simple_test15.c
new file mode 100644
index 0000000000..d02eaefd35
--- /dev/null
+++ b/util/romcc/tests/simple_test15.c
@@ -0,0 +1,47 @@
+static void outb(unsigned char value, unsigned short port)
+{
+        __builtin_outb(value, port);
+}
+
+static unsigned char inb(unsigned short port)
+{
+        return __builtin_inb(port);
+}
+static int uart_can_tx_byte(void)
+{
+        return inb(0x3f8 + 0x05) & 0x20;
+}
+
+static void uart_wait_to_tx_byte(void)
+{
+        while(!uart_can_tx_byte())
+                ;
+}
+
+static void uart_wait_until_sent(void)
+{
+        while(!(inb(0x3f8 + 0x05) & 0x40))
+                ;
+}
+
+static void uart_tx_byte(unsigned char data)
+{
+        uart_wait_to_tx_byte();
+        outb(data, 0x3f8 + 0x00);
+
+        uart_wait_until_sent();
+}
+
+static void print_debug(const char *str)
+{
+	unsigned char ch;
+	while((ch = *str++) != '\0') {
+		uart_tx_byte(ch);
+	}
+}
+
+static void main(void)
+{
+	print_debug("one\r\n");
+        print_debug("two\r\n");
+}