proc defaultRegSizeForMem(explicit: OpSize; other: OpSize): OpSize {....raises: [],
    tags: [], forbids: [].}

proc dynasmAbs(a: var auto; size: RelocationSize; lr: LabelRef)

proc dynasmAlu(a: var auto; mn: string; dst, src: Operand; isX64: bool)

proc dynasmBytes(a: var auto; data: openArray[byte])

proc dynasmBytesStr(a: var auto; s: string)

proc dynasmCall(a: var auto; op: Operand; isX64: bool)

proc dynasmDivMul(a: var auto; mn: string; op: Operand; isX64: bool)

proc dynasmImul(a: var auto; dst, src: Operand; isX64: bool)

proc dynasmImul3(a: var auto; dst, src: Operand; imm: int64)

proc dynasmIncDec(a: var auto; mn: string; op: Operand; isX64: bool)

proc dynasmJcc(a: var auto; mn: string; op: Operand; isShort: bool)

proc dynasmJmp(a: var auto; op: Operand; isShort: bool)

proc dynasmLea(a: var auto; dst: Operand; src: Operand; isX64: bool)

proc dynasmMov(a: var auto; dst, src: Operand; isX64: bool)

proc dynasmMovzx(a: var auto; dst, src: Operand; isX64: bool)

proc dynasmPop(a: var auto; op: Operand; isX64: bool)

proc dynasmPush(a: var auto; op: Operand; isX64: bool)

proc dynasmRel(a: var auto; size: RelocationSize; lr: LabelRef)

proc dynasmShift(a: var auto; mn: string; dst: Operand; count: Operand;
                 isX64: bool)

proc dynasmTest(a: var auto; lhs, rhs: Operand)