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76 lines
3.1 KiB
76 lines
3.1 KiB
/* $Id$ |
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* LC-3b Architecture header file |
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* |
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* Copyright (C) 2003 Peter Johnson |
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* |
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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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* are met: |
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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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* |
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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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*/ |
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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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} lc3b_imm_type; |
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/* Bytecode types */ |
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typedef struct lc3b_insn { |
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/*@null@*/ yasm_expr *imm; /* immediate or relative value */ |
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lc3b_imm_type imm_type; /* size of the immediate */ |
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/*@null@*/ /*@dependent@*/ yasm_symrec *origin; /* PC origin if needed */ |
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unsigned int opcode; /* opcode */ |
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} lc3b_insn; |
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void yasm_lc3b__bc_transform_insn(yasm_bytecode *bc, lc3b_insn *insn); |
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void yasm_lc3b__parse_cpu(yasm_arch *arch, const char *cpuid, |
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unsigned long line); |
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yasm_arch_check_id_retval yasm_lc3b__parse_check_id |
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(yasm_arch *arch, unsigned long data[2], const char *id, |
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unsigned long line); |
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void yasm_lc3b__finalize_insn |
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(yasm_arch *arch, yasm_bytecode *bc, yasm_bytecode *prev_bc, |
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const unsigned long data[4], int num_operands, |
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/*@null@*/ yasm_insn_operands *operands, int num_prefixes, |
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unsigned long **prefixes, int num_segregs, const unsigned long *segregs); |
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int yasm_lc3b__intnum_fixup_rel |
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(yasm_arch *arch, yasm_intnum *intn, size_t valsize, |
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const yasm_bytecode *bc, unsigned long line); |
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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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int warn, unsigned long line); |
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#endif
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