os-workshop

commit 84220e793f80f0c6838c365e6e5e9d87a90af482
parent 2f3b11ec75c68279c91046161facfda8bc5ef638
Author: Brian Swetland <swetland@frotz.net>
Date:   Sat, 23 Apr 2022 18:30:23 -0700

debug: insert \r before \n

- this fixes the serial console display in the qemu GUI

Diffstat:
M
hw/src/debug.c
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/src/debug.c b/hw/src/debug.c
@@ -9,12 +9,15 @@
 #define wr8(v,a) (*((volatile unsigned char*) (a)) = v)
 
 void xputc(unsigned c) {
+	if (c == '\n') {
+		wr8('\r', UART_BASE);
+	}
 	wr8(c, UART_BASE);
 }
 
 void xputs(const char* s) {
 	while (*s != 0) {
-		wr8(*s++, UART_BASE);
+		xputc(*s++);
 	}
 }