1                 : /*
       2                 :  * Copyright (c) 2011 The Native Client Authors. All rights reserved.
       3                 :  * Use of this source code is governed by a BSD-style license that can be
       4                 :  * found in the LICENSE file.
       5                 :  */
       6                 : 
       7                 : /*
       8                 :  * ncopcode_desc_inl.c - Holds inline routines for commonly used (simple)
       9                 :  * functions in ncopcode_desc.h. Used to speed up code. Inlined routines
      10                 :  * correspond to the following functions in ncopcode_desc.h, but with
      11                 :  * an 'Inline' suffix:
      12                 :  *
      13                 :  *    NaClGetInstNumberOperands
      14                 :  *    NaClGetInstOperand
      15                 :  */
      16                 : #ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_DECODER_NCOPCODE_DESC_INL_H_
      17                 : #define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_DECODER_NCOPCODE_DESC_INL_H_
      18                 : 
      19                 : #include <assert.h>
      20                 : #include "native_client/src/trusted/validator/x86/decoder/ncopcode_desc.h"
      21                 : #include "native_client/src/trusted/validator/x86/decoder/nc_decode_tables.h"
      22                 : 
      23                 : /* Returns the number of logical operands an instruction has. That is,
      24                 :  * returns field num_operands unless the first operand is
      25                 :  * a special encoding that extends the opcode.
      26                 :  */
      27               1 : static uint8_t NaClGetInstNumberOperandsInline(const NaClInst* inst) {
      28               1 :   return inst->num_operands;
      29               1 : }
      30                 : 
      31                 : /* Returns the indexed logical operand for the instruction. That is,
      32                 :  * returns the index-th operand unless the first operand is
      33                 :  * a special encoding that extends the opcode. In the latter
      34                 :  * case, the (index+1)-th operand is returned.
      35                 :  */
      36                 : static const INLINE NaClOp* NaClGetInstOperandInline(
      37                 :     const NaClDecodeTables* tables,
      38               3 :     const NaClInst* inst, uint8_t index) {
      39               3 :   assert(index < inst->num_operands);
      40               3 :   return &tables->operands_table[inst->operands_offset + index];
      41               3 : }
      42                 : 
      43                 : #endif  /* NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_DECODER_NCOPCODE_DESC_INL_H_ */