diff --git a/executor/src/main.cpp b/executor/src/main.cpp
index f746c89..d3c901f 100644
--- a/executor/src/main.cpp
+++ b/executor/src/main.cpp
@@ -129,7 +129,7 @@ namespace {
      * @return 低字节非零 → 1，否则 0
      */
     int slot_bool(vm::Machine& m, uint32_t slot) {
-        return m.data()[static_cast<size_t>(slot) * 8] ? 1 : 0;
+        return m.data()[m.slot_addr(slot)] ? 1 : 0;
     }
 
     /**
@@ -139,7 +139,7 @@ namespace {
      * @param v 0/1（非零归一化为 1）
      */
     void put_bool(vm::Machine& m, uint32_t slot, int v) {
-        m.data()[static_cast<size_t>(slot) * 8] = v ? 1 : 0;
+        m.data()[m.slot_addr(slot)] = v ? 1 : 0;
     }
 
     /**
@@ -301,7 +301,7 @@ int main(int argc, char** argv) {
         uint32_t guard = 0;
         while (machine.fault() == vm::Fault::None && !machine.ended()) {
             char buf[64];
-            isa::disasm(machine.cur_instr(), buf, sizeof buf);
+            isa::disasm(machine.cur_instr_bytes(), machine.cur_instr_len(), buf, sizeof buf);
             const uint32_t pc = machine.pc();
             const uint32_t fn = machine.fn_id();
             if (!machine.step()) {