stuff

1 files changed, 37 insertions, 0 deletions

diff --git a/ROMs/logictest.c b/ROMs/logictest.c
new file mode 100644
index 0000000..f2ef6d9
--- /dev/null
+++ b/ROMs/logictest.c
@@ -0,0 +1,37 @@
+#include "std.c"
+#include "screen.c"
+
+int main()
+{
+    // Test values
+    char a = 0b10101010;   // 170
+    char b = 0b11001100;   // 204
+    char c;
+
+    // AND
+    c = a & b;              // expect 0b10001000 = 136
+    *((char*)0x7100) = c;
+
+    // OR
+    c = a | b;              // expect 0b11101110 = 238
+    *((char*)0x7101) = c;
+
+    // XOR
+    c = a ^ b;              // expect 0b01100110 = 102
+    *((char*)0x7102) = c;
+
+    // NOT
+    c = ~a;                 // expect 0b01010101 = 85
+    *((char*)0x7103) = c;
+
+    // SHL
+    c = a << 2;             // expect 0b10101000 = 168
+    *((char*)0x7104) = c;
+
+    // SHR
+    c = a >> 2;             // expect 0b00101010 = 42
+    *((char*)0x7105) = c;
+
+    // Program ends cleanly
+    return 0;
+}
\ No newline at end of file