diff --git a/hello_world/hello_world.bin b/hello_world/hello_world.bin
index 92eb5ac..43f519a 100755
Binary files a/hello_world/hello_world.bin and b/hello_world/hello_world.bin differ
diff --git a/hello_world/hello_world.c b/hello_world/hello_world.c
index b5d1ef2..3012819 100644
--- a/hello_world/hello_world.c
+++ b/hello_world/hello_world.c
@@ -14,5 +14,7 @@ int main(void)
 	while (1) {
 		unsigned char c = getchar();
 		putchar(c);
+		if (c == 13) // if CR send LF
+			putchar(10);
 	}
 }
diff --git a/hello_world/hello_world.elf b/hello_world/hello_world.elf
index d3eda58..bd7924a 100755
Binary files a/hello_world/hello_world.elf and b/hello_world/hello_world.elf differ
diff --git a/hello_world/hello_world.hex b/hello_world/hello_world.hex
index 322ed94..91ceaac 100644
--- a/hello_world/hello_world.hex
+++ b/hello_world/hello_world.hex
@@ -514,19 +514,23 @@ e8010010ebc1fff0
 7c0803a6ebe1fff8
 3c4000014e800020
 7c0802a63842a000
-f821ffe1f8010010
-60000000480001dd
-386373a83c62ffff
-6000000048000141
-600000004800002d
-480000a95463063e
-4bffffec60000000
+f8010010fbe1fff8
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 0100000000000000
-3c40000100000080
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 600000003842a000
 6000000039228000
 8929000039428008
-419e00302f890000
+418200302c090000
 39290014e92a0000
 7d204eaa7c0004ac
 4182ffec71290001
@@ -543,7 +547,7 @@ e86a00004082ffec
 600000003842a000
 6000000039228000
 8929000039428008
-419e002c2f890000
+4182002c2c090000
 39290014e92a0000
 7d204eaa7c0004ac
 4182ffec71290020
@@ -557,48 +561,47 @@ e94a00005469063e
 000000004e800020
 0000000000000000
 3842a0003c400001
-fbc1fff07c0802a6
-3bc3fffffbe1fff8
+fbe1fff87c0802a6
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 f821ffd1f8010010
-2fbf00008ffe0001
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-4bfffe5c38600000
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 4bffff413860000d
-4bffff397fe3fb78
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 000000004bffffd0
 0000028001000000
-7d4348ae39200000
-409e000c2f8a0000
-4e8000207d234b78
-4bffffe839290001
+386000007c6a1b78
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+000000004bfffff0
 0000000000000000
-3c40000100000000
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 7d204eea7c0004ac
-792906003d00c000
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-7d0046ea7c0004ac
-3940000071080020
-3d40c00041820018
-794a0020614a0040
-7d4056ea7c0004ac
-600000003d00c000
+600000003d40c000
 38e2800060000000
-7908002061082000
-3d00001cf9028008
-7d29439261082000
-79080fc37948f804
-3940000141820080
-6108200c3d00c000
-7908002099470000
-7c0004ac3940ff80
-e94280087d4047aa
-7d2057aa7c0004ac
-7929c202e9428008
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+3920000141820080
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 e92280087d2057aa
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+7908c202e9228008
+7c0004ac39290004
+e92280087d004faa
 3929000c39400003
 7d404faa7c0004ac
 39290010e9228008
@@ -606,26 +609,53 @@ e92280087d2057aa
 39400007e9228008
 7c0004ac39290008
 4e8000207d404faa
-990700003d40c000
-614a20183929ffff
-7c0004ac794a0020
-4e8000207d2057ea
+994700003d20c000
+612920183908ffff
+7c0004ac79290020
+4e8000207d004fea
 0000000000000000
 3c40000100000000
 600000003842a000
-2ea4000039228000
+2c24000039228000
 2f89000089290000
 e922800860000000
-41960024419e0030
-2fa3000039400002
-614a0001419e0008
+41820024419e0030
+2c23000039400002
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 7c0004ac39290004
 4e8000207d404faa
 4bffffe039400000
-6063000241960008
+6063000241820008
 7c0004ac39290020
 4e8000207c604fea
 0000000000000000
 0000000000000000
 6f57206f6c6c6548
 000000000a646c72
+0000000000000010
+0141780400527a01
+0000001800010c1b
+fffffc2800000018
+300e460000000070
+000000019f7e4111
+0000000000000010
+0141780400527a01
+0000001000010c1b
+fffffc6800000018
+0000000000000088
+0000002c00000010
+00000084fffffcdc
+0000002800000000
+fffffd4c00000040
+4109450000000060
+300e43029e019f00
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+0000000b4106dedf
+0000006c00000010
+00000028fffffd80
+0000001000000000
+fffffd9400000080
+000000000000012c
+0000009400000010
+00000078fffffeac
+0000000000000000