feat: reimplement cpu logging

src/core/util.zig

@@ -166,7 +166,7 @@ pub const Logger = struct {
             arm7tdmi.r[12],
             arm7tdmi.r[13],
             arm7tdmi.r[14],
-            arm7tdmi.r[15],
+            arm7tdmi.r[15] - 4,
             arm7tdmi.cpsr.raw,
             opcode,
         };