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* LC-3b Architecture header file
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* Copyright (C) 2003-2007 Peter Johnson
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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#ifndef YASM_LC3BARCH_H
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#define YASM_LC3BARCH_H
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/* Types of immediate. All immediates are stored in the LSBs of the insn. */
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typedef enum lc3b_imm_type {
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LC3B_IMM_NONE = 0, /* no immediate */
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LC3B_IMM_4, /* 4-bit */
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LC3B_IMM_5, /* 5-bit */
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LC3B_IMM_6_WORD, /* 6-bit, word-multiple (byte>>1) */
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LC3B_IMM_6_BYTE, /* 6-bit, byte-multiple */
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LC3B_IMM_8, /* 8-bit, word-multiple (byte>>1) */
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LC3B_IMM_9, /* 9-bit, signed, word-multiple (byte>>1) */
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LC3B_IMM_9_PC /* 9-bit, signed, word-multiple, PC relative */
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typedef struct lc3b_insn {
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yasm_value imm; /* immediate or relative value */
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lc3b_imm_type imm_type; /* size of the immediate */
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unsigned int opcode; /* opcode */
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void yasm_lc3b__bc_transform_insn(yasm_bytecode *bc, lc3b_insn *insn);
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yasm_arch_insnprefix yasm_lc3b__parse_check_insnprefix
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(yasm_arch *arch, const char *id, size_t id_len, unsigned long line,
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/*@out@*/ /*@only@*/ yasm_bytecode **bc, /*@out@*/ uintptr_t *prefix);
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yasm_arch_regtmod yasm_lc3b__parse_check_regtmod
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(yasm_arch *arch, const char *id, size_t id_len,
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/*@out@*/ uintptr_t *data);
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int yasm_lc3b__intnum_tobytes
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(yasm_arch *arch, const yasm_intnum *intn, unsigned char *buf,
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size_t destsize, size_t valsize, int shift, const yasm_bytecode *bc,
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/*@only@*/ yasm_bytecode *yasm_lc3b__create_empty_insn(yasm_arch *arch,
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void yasm_lc3b__ea_destroy(/*@only@*/ yasm_effaddr *ea);