libmach
diff --git a/src/libmach/dwarfeval.c b/src/libmach/dwarfeval.c
new file mode 100644
index 0000000..0da7273
--- /dev/null
+++ b/src/libmach/dwarfeval.c
@@ -0,0 +1,62 @@
+ OpAddr = 0x03, // 1 op, const addr
+ OpDeref = 0x06,
+ OpConst1u = 0x08, // 1 op, 1 byte const
+ OpConst1s = 0x09, // " signed
+ OpConst2u = 0x0A // 1 op, 2 byte const
+ OpConst2s = 0x0B, // " signed
+ OpConst4u = 0x0C, // 1 op, 4 byte const
+ OpConst4s = 0x0D, // " signed
+ OpConst8u = 0x0E, // 1 op, 8 byte const
+ OpConst8s = 0x0F, // " signed
+ OpConstu = 0x10, // 1 op, LEB128 const
+ OpConsts = 0x11, // " signed
+ OpDup = 0x12,
+ OpDrop = 0x13,
+ OpOver = 0x14,
+ OpPick = 0x15, // 1 op, 1 byte stack index
+ OpSwap = 0x16,
+ OpRot = 0x17,
+ OpXderef = 0x18,
+ OpAbs = 0x19,
+ OpAnd = 0x1A,
+ OpDiv = 0x1B,
+ OpMinus = 0x1C,
+ OpMod = 0x1D,
+ OpMul = 0x1E,
+ OpNeg = 0x1F,
+ OpNot = 0x20,
+ OpOr = 0x21,
+ OpPlus = 0x22,
+ OpPlusUconst = 0x23, // 1 op, ULEB128 addend
+ OpShl = 0x24,
+ OpShr = 0x25,
+ OpShra = 0x26,
+ OpXor = 0x27,
+ OpSkip = 0x2F, // 1 op, signed 2-byte constant
+ OpBra = 0x28, // 1 op, signed 2-byte constant
+ OpEq = 0x29,
+ OpGe = 0x2A,
+ OpGt = 0x2B,
+ OpLe = 0x2C,
+ OpLt = 0x2D,
+ OpNe = 0x2E,
+ OpLit0 = 0x30,
+ // OpLitN = OpLit0 + N for N = 0..31
+ OpReg0 = 0x50,
+ // OpRegN = OpReg0 + N for N = 0..31
+ OpBreg0 = 0x70, // 1 op, signed LEB128 constant
+ // OpBregN = OpBreg0 + N for N = 0..31
+ OpRegx = 0x90, // 1 op, ULEB128 register
+ OpFbreg = 0x91, // 1 op, SLEB128 offset
+ OpBregx = 0x92, // 2 op, ULEB128 reg, SLEB128 off
+ OpPiece = 0x93, // 1 op, ULEB128 size of piece
+ OpDerefSize = 0x94, // 1-byte size of data retrieved
+ OpXderefSize = 0x95, // 1-byte size of data retrieved
+ OpNop = 0x96,
+ // next four new in Dwarf v3
+ OpPushObjAddr = 0x97,
+ OpCall2 = 0x98, // 2-byte offset of DIE
+ OpCall4 = 0x99, // 4-byte offset of DIE
+ OpCallRef = 0x9A, // 4- or 8- byte offset of DIE
+ // 0xE0-0xFF reserved for user-specific
+
