Merge pull request 'Suggesting a third exercise for bit manipulation' (#202) from alexsisco/zigling-exercises:bit_man3 into main

Reviewed-on: https://codeberg.org/ziglings/exercises/pulls/202

1 files changed, 31 insertions, 0 deletions

diff --git a/build.zig b/build.zig
index 54479cb..25d831c 100644
--- a/build.zig
+++ b/build.zig
@@ -1269,6 +1269,37 @@ const exercises = [_]Exercise{
         \\Max difference (new fn): 0.014
         ,
     },
+    .{ .main_file = "110_quiz9.zig", .output = 
+    \\Toggle pins with XOR on PORTB
+    \\-----------------------------
+    \\  1100 // (initial state of PORTB)
+    \\^ 0101 // (bitmask)
+    \\= 1001
+    \\
+    \\  1100 // (initial state of PORTB)
+    \\^ 0011 // (bitmask)
+    \\= 1111
+    \\
+    \\Set pins with OR on PORTB
+    \\-------------------------
+    \\  1001 // (initial state of PORTB)
+    \\| 0100 // (bitmask)
+    \\= 1101
+    \\
+    \\  1001 // (reset state)
+    \\| 0100 // (bitmask)
+    \\= 1101
+    \\
+    \\Clear pins with AND and NOT on PORTB
+    \\------------------------------------
+    \\  1110 // (initial state of PORTB)
+    \\& 1011 // (bitmask)
+    \\= 1010
+    \\
+    \\  0111 // (reset state)
+    \\& 1110 // (bitmask)
+    \\= 0110
+    },
     .{
         .main_file = "999_the_end.zig",
         .output =