Impl TRAP

2 files changed, 11 insertions, 3 deletions

diff --git a/disasm.cpp b/disasm.cpp
index 01a4af5..7026b63 100644
--- a/disasm.cpp
+++ b/disasm.cpp
@@ -656,10 +656,12 @@ static void disasm_move_to(
 }
 
 static void disasm_trap(
-        DisasmNode& node, uint16_t instr, const DataBuffer &code, const Settings &s)
+        DisasmNode& node, uint16_t instr, const DataBuffer &, const Settings &)
 {
-    // TODO
-    return disasm_verbatim(node, instr, code, s);
+    const unsigned vector = instr & 0xf;
+    snprintf(node.mnemonic, kMnemonicBufferSize, "trap");
+    snprintf(node.arguments, kArgsBufferSize, "#%u", vector);
+    node.size = kInstructionSizeStepBytes;
 }
 
 static void disasm_link_unlink(
diff --git a/test.bash b/test.bash
index 371f535..0c37864 100644
--- a/test.bash
+++ b/test.bash
@@ -93,6 +93,12 @@ run_test_iterative() {
   done
 }
 
+# 4e4x
+#
+run_test_simple "trap 0" "\x4e\x40"
+run_test_simple "trap 8" "\x4e\x48"
+run_test_simple "trap 15" "\x4e\x4f"
+
 # 4e5x
 #
 run_test_simple "linkw positive" "\x4e\x52\x01\x00"