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  1. /*
  2.  * Copyright 2008 Advanced Micro Devices, Inc.
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the "Software"),
  6.  * to deal in the Software without restriction, including without limitation
  7.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8.  * and/or sell copies of the Software, and to permit persons to whom the
  9.  * Software is furnished to do so, subject to the following conditions:
  10.  *
  11.  * The above copyright notice and this permission notice shall be included in
  12.  * all copies or substantial portions of the Software.
  13.  *
  14.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17.  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18.  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19.  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20.  * OTHER DEALINGS IN THE SOFTWARE.
  21.  *
  22.  * Author: Stanislaw Skowronek
  23.  */
  24.  
  25. #ifndef ATOM_BITS_H
  26. #define ATOM_BITS_H
  27.  
  28. static inline uint8_t get_u8(void *bios, int ptr)
  29. {
  30.     return ((unsigned char *)bios)[ptr];
  31. }
  32. #define U8(ptr) get_u8(ctx->ctx->bios, (ptr))
  33. #define CU8(ptr) get_u8(ctx->bios, (ptr))
  34. static inline uint16_t get_u16(void *bios, int ptr)
  35. {
  36.     return get_u8(bios ,ptr)|(((uint16_t)get_u8(bios, ptr+1))<<8);
  37. }
  38. #define U16(ptr) get_u16(ctx->ctx->bios, (ptr))
  39. #define CU16(ptr) get_u16(ctx->bios, (ptr))
  40. static inline uint32_t get_u32(void *bios, int ptr)
  41. {
  42.     return get_u16(bios, ptr)|(((uint32_t)get_u16(bios, ptr+2))<<16);
  43. }
  44. #define U32(ptr) get_u32(ctx->ctx->bios, (ptr))
  45. #define CU32(ptr) get_u32(ctx->bios, (ptr))
  46. #define CSTR(ptr) (((char *)(ctx->bios))+(ptr))
  47.  
  48. #endif
  49.