diff options
| -rw-r--r-- | patches/patches/110_bit_manipulation3.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/patches/patches/110_bit_manipulation3.patch b/patches/patches/110_bit_manipulation3.patch new file mode 100644 index 0000000..9c64336 --- /dev/null +++ b/patches/patches/110_bit_manipulation3.patch @@ -0,0 +1,56 @@ +--- exercises/110_bit_manipulation3.zig 2025-02-08 11:52:35.609300707 -0800 ++++ answers/110_bit_manipulation3.zig 2025-02-08 13:00:15.414038314 -0800 +@@ -108,7 +108,7 @@ + PORTB = 0b1100; + print(" {b:0>4} // (initial state of PORTB)\n", .{PORTB}); + print("^ {b:0>4} // (bitmask)\n", .{0b0101}); +- PORTB ^= (1 << 1) | (1 << 0); // What's wrong here? ++ PORTB ^= (1 << 2) | (1 << 0); + checkAnswer(0b1001, PORTB); + + newline(); +@@ -116,7 +116,7 @@ + PORTB = 0b1100; + print(" {b:0>4} // (initial state of PORTB)\n", .{PORTB}); + print("^ {b:0>4} // (bitmask)\n", .{0b0011}); +- PORTB ^= (1 << 1) & (1 << 0); // What's wrong here? ++ PORTB ^= (1 << 1) | (1 << 0); + checkAnswer(0b1111, PORTB); + + newline(); +@@ -170,7 +170,7 @@ + PORTB = 0b1001; // reset PORTB + print(" {b:0>4} // (initial state of PORTB)\n", .{PORTB}); + print("| {b:0>4} // (bitmask)\n", .{0b0100}); +- PORTB = PORTB ??? (1 << 2); // What's missing here? ++ PORTB = PORTB | (1 << 2); + checkAnswer(0b1101, PORTB); + + newline(); +@@ -178,7 +178,7 @@ + PORTB = 0b1001; // reset PORTB + print(" {b:0>4} // (reset state)\n", .{PORTB}); + print("| {b:0>4} // (bitmask)\n", .{0b0100}); +- PORTB ??? (1 << 2); // What's missing here? ++ PORTB |= (1 << 2); + checkAnswer(0b1101, PORTB); + + newline(); +@@ -269,7 +269,7 @@ + PORTB = 0b1110; // reset PORTB + print(" {b:0>4} // (initial state of PORTB)\n", .{PORTB}); + print("& {b:0>4} // (bitmask)\n", .{0b1011}); +- PORTB = PORTB & ???@as(u4, 1 << 2); // What character is missing here? ++ PORTB = PORTB & ~@as(u4, 1 << 2); + checkAnswer(0b1010, PORTB); + + newline(); +@@ -277,7 +277,7 @@ + PORTB = 0b0111; // reset PORTB + print(" {b:0>4} // (reset state)\n", .{PORTB}); + print("& {b:0>4} // (bitmask)\n", .{0b1110}); +- PORTB &= ~(1 << 0); // What's missing here? ++ PORTB &= ~@as(u4, 1 << 0); + checkAnswer(0b0110, PORTB); + + newline(); |