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50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* -----------------------------------------------------------------------------
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* input.h
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*
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* Copyright (c) 2006, Vivek Mohan <vivek@sig9.com>
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* All rights reserved. See LICENSE
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* -----------------------------------------------------------------------------
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*/
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#ifndef UD_INPUT_H
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#define UD_INPUT_H
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#include "types.h"
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uint8_t inp_next(struct ud*);
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uint8_t inp_peek(struct ud*);
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uint8_t inp_uint8(struct ud*);
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uint16_t inp_uint16(struct ud*);
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uint32_t inp_uint32(struct ud*);
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uint64_t inp_uint64(struct ud*);
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void inp_move(struct ud*, size_t);
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void inp_back(struct ud*);
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/* inp_init() - Initializes the input system. */
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#define inp_init(u) \
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do { \
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u->inp_curr = 0; \
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u->inp_fill = 0; \
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u->inp_ctr = 0; \
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u->inp_end = 0; \
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} while (0)
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/* inp_start() - Should be called before each de-code operation. */
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#define inp_start(u) u->inp_ctr = 0
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/* inp_back() - Resets the current pointer to its position before the current
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* instruction disassembly was started.
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*/
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#define inp_reset(u) \
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do { \
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u->inp_curr -= u->inp_ctr; \
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u->inp_ctr = 0; \
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} while (0)
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/* inp_sess() - Returns the pointer to current session. */
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#define inp_sess(u) (u->inp_sess)
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/* inp_cur() - Returns the current input byte. */
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#define inp_curr(u) ((u)->inp_cache[(u)->inp_curr])
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#endif
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