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
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