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