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More 68K core refactoring to both reduce the amount of code and better split the host-cpu specific parts from the generic parts
author Michael Pavone <pavone@retrodev.com>
date Mon, 03 Mar 2014 22:17:20 -0800
parents 76bba9ffe351
children a6f2db4df70d
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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 check_code_prologue(code_info *code);
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14 void areg_to_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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15 void dreg_to_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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16 void areg_to_native_sx(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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17 void dreg_to_native_sx(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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18 void native_to_areg(m68k_options *opts, uint8_t native_reg, uint8_t reg);
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19 void native_to_dreg(m68k_options *opts, uint8_t native_reg, uint8_t reg);
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20 void ldi_areg(m68k_options *opts, int32_t value, uint8_t reg);
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21 void ldi_native(m68k_options *opts, int32_t value, uint8_t reg);
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22 void addi_areg(m68k_options *opts, int32_t val, uint8_t reg);
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23 void subi_areg(m68k_options *opts, int32_t val, uint8_t reg);
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24 void add_areg_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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25 void add_dreg_native(m68k_options *opts, uint8_t reg, uint8_t native_reg);
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26 void calc_areg_displace(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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27 void calc_index_disp8(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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28 void calc_areg_index_disp8(m68k_options *opts, m68k_op_info *op, uint8_t native_reg);
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29
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30 //functions implemented in m68k_core.c
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31 int8_t native_reg(m68k_op_info * op, m68k_options * opts);
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32 size_t dreg_offset(uint8_t reg);
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33 size_t areg_offset(uint8_t reg);
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34 size_t reg_offset(m68k_op_info *op);
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35 void print_regs_exit(m68k_context * context);
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36 void m68k_read_size(m68k_options *opts, uint8_t size);
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37 void m68k_write_size(m68k_options *opts, uint8_t size);
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38 void push_const(m68k_options *opts, int32_t value);
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39 void jump_m68k_abs(m68k_options * opts, uint32_t address);
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40 void swap_ssp_usp(m68k_options * opts);
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41 code_ptr get_native_address(native_map_slot * native_code_map, uint32_t address);
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42 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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43 uint8_t get_native_inst_size(m68k_options * opts, uint32_t address);
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44 uint8_t m68k_is_terminal(m68kinst * inst);
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45 void m68k_handle_deferred(m68k_context * context);
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46 code_ptr get_native_address_trans(m68k_context * context, uint32_t address);
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47
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48 //individual instructions
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49 void translate_m68k_lea(m68k_options * opts, m68kinst * inst);
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50 void translate_m68k_pea(m68k_options * opts, m68kinst * inst);
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51 void translate_m68k_bsr(m68k_options * opts, m68kinst * inst);
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52 void translate_m68k_jmp_jsr(m68k_options * opts, m68kinst * inst);
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53 void translate_m68k_unlk(m68k_options * opts, m68kinst * inst);
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54 void translate_m68k_link(m68k_options * opts, m68kinst * inst);
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55 void translate_m68k_rts(m68k_options * opts, m68kinst * inst);
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56 void translate_m68k_rtr(m68k_options *opts, m68kinst * inst);
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57 void translate_m68k_trap(m68k_options *opts, m68kinst *inst);
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58
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59 #define BUS 4
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60 #define PREDEC_PENALTY 2
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61 extern char disasm_buf[1024];
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62
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63 m68k_context * sync_components(m68k_context * context, uint32_t address);
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64
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65 void m68k_invalid();
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66 void bcd_add();
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67 void bcd_sub();
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68
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69 #endif //M68K_INTERNAL_H_