diff --git a/aheui.c b/aheui.c
index c6d7a8c..0085b64 100644
--- a/aheui.c
+++ b/aheui.c
@@ -301,7 +301,14 @@ int execute(int *exitcode) {
                 }
             break;
             case OP_CMP: push((b>=a) ? 1 : 0); break;
-            case OP_BRANCH: if (a == 0) { dir.dx = -dir.dx; dir.dy = -dir.dy; } break;
+            case OP_BRANCH: if (a == 0) {
+                switch (value_table[cell->value] % 4) {
+                    case 0 : dir.dx = -dir.dx; dir.dy = -dir.dy; break;
+                    case 1 : break;
+                    case 2 : dir.dx ^= dir.dy; dir.dy ^= dir.dx; dir.dx ^= dir.dy; dir.dx = -dir.dx; dir.dy = -dir.dy; break;
+                    case 3 : dir.dx ^= dir.dy; dir.dy ^= dir.dx; dir.dx ^= dir.dy; break;
+                }
+            } break;
             case OP_SUB: push(b-a); break;
             case OP_SWAP: break;
             case OP_EXIT: