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annotate m68k_internal.h @ 717:22dbdf50d33c

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Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
author Michael Pavone <pavone@retrodev.com>
date Tue, 19 May 2015 23:23:53 -0700
parents 8c546bc1d773
children 7367b14ac01c
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1 /*
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2 Copyright 2014 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #ifndef M68K_INTERNAL_H_
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7 #define M68K_INTERNAL_H_
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8
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9 #include "68kinst.h"
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10
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11 //functions implemented in host CPU specfic file
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12 void translate_out_of_bounds(code_info *code);
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13 void areg_to_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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14 void dreg_to_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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15 void areg_to_native_sx(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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16 void dreg_to_native_sx(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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17 void native_to_areg(m68k_options *opts, uint8_t native_reg, uint8_t reg);
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18 void native_to_dreg(m68k_options *opts, uint8_t native_reg, uint8_t reg);
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19 void ldi_areg(m68k_options *opts, int32_t value, uint8_t reg);
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20 void ldi_native(m68k_options *opts, int32_t value, uint8_t reg);
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21 void addi_native(m68k_options *opts, int32_t value, uint8_t reg);
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22 void subi_native(m68k_options *opts, int32_t value, uint8_t reg);
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23 void push_native(m68k_options *opts, uint8_t reg);
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24 void pop_native(m68k_options *opts, uint8_t reg);
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25 void sign_extend16_native(m68k_options *opts, uint8_t reg);
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26 void addi_areg(m68k_options *opts, int32_t val, uint8_t reg);
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27 void subi_areg(m68k_options *opts, int32_t val, uint8_t reg);
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28 void add_areg_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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29 void add_dreg_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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30 void calc_areg_displace(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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31 void calc_index_disp8(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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32 void calc_areg_index_disp8(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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33 void nop_fill_or_jmp_next(code_info *code, code_ptr old_end, code_ptr next_inst);
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34 void check_user_mode_swap_ssp_usp(m68k_options *opts);
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35
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36 //functions implemented in m68k_core.c
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37 int8_t native_reg(m68k_op_info * op, m68k_options * opts);
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38 size_t dreg_offset(uint8_t reg);
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39 size_t areg_offset(uint8_t reg);
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40 size_t reg_offset(m68k_op_info *op);
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41 void translate_m68k_op(m68kinst * inst, host_ea * ea, m68k_options * opts, uint8_t dst);
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42 void print_regs_exit(m68k_context * context);
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43 void m68k_read_size(m68k_options *opts, uint8_t size);
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44 void m68k_write_size(m68k_options *opts, uint8_t size);
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45 void m68k_save_result(m68kinst * inst, m68k_options * opts);
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46 void push_const(m68k_options *opts, int32_t value);
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47 void jump_m68k_abs(m68k_options * opts, uint32_t address);
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48 void swap_ssp_usp(m68k_options * opts);
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49 code_ptr get_native_address(native_map_slot * native_code_map, uint32_t address);
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50 void map_native_address(m68k_context * context, uint32_t address, code_ptr native_addr, uint8_t size, uint8_t native_size);
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51 uint8_t get_native_inst_size(m68k_options * opts, uint32_t address);
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52 uint8_t m68k_is_terminal(m68kinst * inst);
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53 void m68k_handle_deferred(m68k_context * context);
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54 code_ptr get_native_address_trans(m68k_context * context, uint32_t address);
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55 void * m68k_retranslate_inst(uint32_t address, m68k_context * context);
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56
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57 //individual instructions
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58 void translate_m68k_bcc(m68k_options * opts, m68kinst * inst);
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59 void translate_m68k_scc(m68k_options * opts, m68kinst * inst);
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60 void translate_m68k_dbcc(m68k_options * opts, m68kinst * inst);
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61 void translate_m68k_rtr(m68k_options *opts, m68kinst * inst);
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62 void translate_m68k_trap(m68k_options *opts, m68kinst *inst);
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63 void translate_m68k_move(m68k_options * opts, m68kinst * inst);
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64 void translate_m68k_movep(m68k_options * opts, m68kinst * inst);
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65 void translate_m68k_arith(m68k_options *opts, m68kinst * inst, uint32_t flag_mask, host_ea *src_op, host_ea *dst_op);
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66 void translate_m68k_unary(m68k_options *opts, m68kinst *inst, uint32_t flag_mask, host_ea *dst_op);
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67 void translate_m68k_invalid(m68k_options *opts, m68kinst *inst);
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68 void translate_m68k_cmp(m68k_options * opts, m68kinst * inst);
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69 void translate_m68k_clr(m68k_options * opts, m68kinst * inst);
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70 void translate_m68k_ext(m68k_options * opts, m68kinst * inst);
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71 void translate_m68k_abcd_sbcd(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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72 void translate_m68k_sl(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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73 void translate_m68k_asr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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74 void translate_m68k_lsr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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75 void translate_m68k_bit(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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76 void translate_m68k_chk(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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77 void translate_m68k_div(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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78 void translate_m68k_exg(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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79 void translate_m68k_mul(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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80 void translate_m68k_negx(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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81 void translate_m68k_rot(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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82 void translate_m68k_illegal(m68k_options *opts, m68kinst *inst);
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83 void translate_m68k_andi_ori_ccr_sr(m68k_options *opts, m68kinst *inst);
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84 void translate_m68k_eori_ccr_sr(m68k_options *opts, m68kinst *inst);
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85 void translate_m68k_move_ccr_sr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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86 void translate_m68k_stop(m68k_options *opts, m68kinst *inst);
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87 void translate_m68k_move_from_sr(m68k_options *opts, m68kinst *inst, host_ea *src_op, host_ea *dst_op);
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88
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89 //flag update bits
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90 #define X0 0x0001
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91 #define X1 0x0002
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92 #define X 0x0004
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93 #define N0 0x0008
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94 #define N1 0x0010
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95 #define N 0x0020
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96 #define Z0 0x0040
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97 #define Z1 0x0080
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98 #define Z 0x0100
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99 #define V0 0x0200
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100 #define V1 0x0400
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101 #define V 0x0800
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102 #define C0 0x1000
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103 #define C1 0x2000
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104 #define C 0x4000
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105
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106 #define BUS 4
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107 #define PREDEC_PENALTY 2
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108 extern char disasm_buf[1024];
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109
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110 m68k_context * sync_components(m68k_context * context, uint32_t address);
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111
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112 void m68k_invalid();
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113 void bcd_add();
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114 void bcd_sub();
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115
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116 #endif //M68K_INTERNAL_H_