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https://github.com/KolibriOS/kolibrios.git
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49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* Copyright 2008 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author: Stanislaw Skowronek
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*/
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#ifndef ATOM_BITS_H
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#define ATOM_BITS_H
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static inline uint8_t get_u8(void *bios, int ptr)
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{
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return ((unsigned char *)bios)[ptr];
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}
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#define U8(ptr) get_u8(ctx->ctx->bios, (ptr))
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#define CU8(ptr) get_u8(ctx->bios, (ptr))
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static inline uint16_t get_u16(void *bios, int ptr)
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{
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return get_u8(bios ,ptr)|(((uint16_t)get_u8(bios, ptr+1))<<8);
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}
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#define U16(ptr) get_u16(ctx->ctx->bios, (ptr))
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#define CU16(ptr) get_u16(ctx->bios, (ptr))
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static inline uint32_t get_u32(void *bios, int ptr)
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{
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return get_u16(bios, ptr)|(((uint32_t)get_u16(bios, ptr+2))<<16);
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}
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#define U32(ptr) get_u32(ctx->ctx->bios, (ptr))
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#define CU32(ptr) get_u32(ctx->bios, (ptr))
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#define CSTR(ptr) (((char *)(ctx->bios))+(ptr))
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#endif
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