diff --git a/disasm-arm.cc b/disasm-arm.cc
new file mode 100644
index 0000000..3ed5015
--- /dev/null
+++ b/disasm-arm.cc
@@ -0,0 +1,115 @@
+#include <capstone/capstone.h>
+
+#include "disasm-arm.h"
+#include "log.h"
+
+
+static int
+is_cs_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_semantic_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_trap_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_cflow_group(uint8_t g)
+{
+  return 0;
+}
+
+
+static int
+is_cs_cflow_ins(cs_insn *ins)
+{
+  return 0;
+}
+
+
+static int
+is_cs_call_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_ret_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_unconditional_jmp_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_conditional_cflow_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_privileged_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static uint8_t
+cs_to_nucleus_op_type(x86_op_type op)
+{
+  switch(op) {
+  default:
+    return Operand::OP_TYPE_NONE;
+  }
+}
+
+
+int
+nucleus_disasm_bb_arm(Binary *bin, DisasmSection *dis, BB *bb)
+{
+  return 0;
+}
diff --git a/disasm-arm.h b/disasm-arm.h
new file mode 100644
index 0000000..a02d338
--- /dev/null
+++ b/disasm-arm.h
@@ -0,0 +1,8 @@
+#ifndef NUCLEUS_DISASM_ARM_H
+#define NUCLEUS_DISASM_ARM_H
+
+#include "disasm.h"
+
+int nucleus_disasm_bb_arm(Binary *bin, DisasmSection *dis, BB *bb);
+
+#endif /* NUCLEUS_DISASM_ARM_H */
diff --git a/disasm-mips.cc b/disasm-mips.cc
new file mode 100644
index 0000000..1a52b38
--- /dev/null
+++ b/disasm-mips.cc
@@ -0,0 +1,115 @@
+#include <capstone/capstone.h>
+
+#include "disasm-mips.h"
+#include "log.h"
+
+
+static int
+is_cs_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_semantic_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_trap_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_cflow_group(uint8_t g)
+{
+  return 0;
+}
+
+
+static int
+is_cs_cflow_ins(cs_insn *ins)
+{
+  return 0;
+}
+
+
+static int
+is_cs_call_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_ret_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_unconditional_jmp_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_conditional_cflow_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_privileged_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static uint8_t
+cs_to_nucleus_op_type(x86_op_type op)
+{
+  switch(op) {
+  default:
+    return Operand::OP_TYPE_NONE;
+  }
+}
+
+
+int
+nucleus_disasm_bb_mips(Binary *bin, DisasmSection *dis, BB *bb)
+{
+  return 0;
+}
diff --git a/disasm-mips.h b/disasm-mips.h
new file mode 100644
index 0000000..e904a42
--- /dev/null
+++ b/disasm-mips.h
@@ -0,0 +1,8 @@
+#ifndef NUCLEUS_DISASM_MIPS_H
+#define NUCLEUS_DISASM_MIPS_H
+
+#include "disasm.h"
+
+int nucleus_disasm_bb_mips(Binary *bin, DisasmSection *dis, BB *bb);
+
+#endif /* NUCLEUS_DISASM_MIPS_H */
diff --git a/disasm-ppc.cc b/disasm-ppc.cc
new file mode 100644
index 0000000..775c68e
--- /dev/null
+++ b/disasm-ppc.cc
@@ -0,0 +1,115 @@
+#include <capstone/capstone.h>
+
+#include "disasm-ppc.h"
+#include "log.h"
+
+
+static int
+is_cs_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_semantic_nop_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_trap_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_cflow_group(uint8_t g)
+{
+  return 0;
+}
+
+
+static int
+is_cs_cflow_ins(cs_insn *ins)
+{
+  return 0;
+}
+
+
+static int
+is_cs_call_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_ret_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_unconditional_jmp_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_conditional_cflow_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static int
+is_cs_privileged_ins(cs_insn *ins)
+{
+  switch(ins->id) {
+  default:
+    return 0;
+  }
+}
+
+
+static uint8_t
+cs_to_nucleus_op_type(x86_op_type op)
+{
+  switch(op) {
+  default:
+    return Operand::OP_TYPE_NONE;
+  }
+}
+
+
+int
+nucleus_disasm_bb_ppc(Binary *bin, DisasmSection *dis, BB *bb)
+{
+  return 0;
+}
diff --git a/disasm-ppc.h b/disasm-ppc.h
new file mode 100644
index 0000000..2fc1a9c
--- /dev/null
+++ b/disasm-ppc.h
@@ -0,0 +1,8 @@
+#ifndef NUCLEUS_DISASM_PPC_H
+#define NUCLEUS_DISASM_PPC_H
+
+#include "disasm.h"
+
+int nucleus_disasm_bb_ppc(Binary *bin, DisasmSection *dis, BB *bb);
+
+#endif /* NUCLEUS_DISASM_PPC_H */
diff --git a/disasm-x86.cc b/disasm-x86.cc
index d3b2e95..3885621 100644
--- a/disasm-x86.cc
+++ b/disasm-x86.cc
@@ -1,24 +1,6 @@
-#include <stdio.h>
-#include <stdint.h>
-#include <assert.h>
-
-#include <vector>
-#include <list>
-#include <map>
-#include <queue>
-#include <string>
-#include <algorithm>
-
 #include <capstone/capstone.h>
 
-#include "loader.h"
-#include "bb.h"
-#include "insn.h"
-#include "dataregion.h"
-#include "disasm.h"
-#include "strategy.h"
-#include "util.h"
-#include "options.h"
+#include "disasm-x86.h"
 #include "log.h"
 
 
diff --git a/disasm.cc b/disasm.cc
index ba0b995..7f01943 100644
--- a/disasm.cc
+++ b/disasm.cc
@@ -21,6 +21,9 @@
 #include "options.h"
 #include "log.h"
 
+#include "disasm-arm.h"
+#include "disasm-mips.h"
+#include "disasm-ppc.h"
 #include "disasm-x86.h"
 
 
@@ -189,6 +192,12 @@ static int
 nucleus_disasm_bb(Binary *bin, DisasmSection *dis, BB *bb)
 {
   switch(bin->arch) {
+  case Binary::ARCH_ARM:
+    return nucleus_disasm_bb_arm(bin, dis, bb);
+  case Binary::ARCH_MIPS:
+    return nucleus_disasm_bb_mips(bin, dis, bb);
+  case Binary::ARCH_PPC:
+    return nucleus_disasm_bb_ppc(bin, dis, bb);
   case Binary::ARCH_X86:
     return nucleus_disasm_bb_x86(bin, dis, bb);
   default: