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annotate jagcpu.h @ 1483:001120e91fed nuklear_ui

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Skip loading menu ROM if Nuklear UI is enabled. Allow disabling Nuklear UI in favor of old menu ROM both at compile time and in config. Fall back to ROM UI if GL is unavailable
author Michael Pavone <pavone@retrodev.com>
date Sat, 25 Nov 2017 20:43:20 -0800
parents c48d5191ddc9
children
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1 #ifndef JAGCPU_H_
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2 #define JAGCPU_H_
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3
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4 enum {
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5 JAG_ADD,
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6 JAG_ADDC,
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7 JAG_ADDQ,
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8 JAG_ADDQT,
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9 JAG_SUB,
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10 JAG_SUBC,
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11 JAG_SUBQ,
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12 JAG_SUBQT,
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13 JAG_NEG,
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14 JAG_AND,
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15 JAG_OR,
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16 JAG_XOR,
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17 JAG_NOT,
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18 JAG_BTST,
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19 JAG_BSET,
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20 JAG_BCLR,
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21 JAG_MULT,
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22 JAG_IMULT,
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23 JAG_IMULTN,
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24 JAG_RESMAC,
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25 JAG_IMACN,
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26 JAG_DIV,
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27 JAG_ABS,
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28 JAG_SH,
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29 JAG_SHLQ,
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30 JAG_SHRQ,
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31 JAG_SHA,
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32 JAG_SHARQ,
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33 JAG_ROR,
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34 JAG_RORQ,
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35 JAG_CMP,
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36 JAG_CMPQ,
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37 GPU_SAT8,
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38 DSP_SUBQMOD = GPU_SAT8,
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39 GPU_SAT16,
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40 DSP_SAT16S = GPU_SAT16,
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41 JAG_MOVE,
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42 JAG_MOVEQ,
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43 JAG_MOVETA,
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44 JAG_MOVEFA,
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45 JAG_MOVEI,
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46 JAG_LOADB,
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47 JAG_LOADW,
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48 JAG_LOAD,
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49 GPU_LOADP,
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50 DSP_SAT32S = GPU_LOADP,
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51 JAG_LOAD_R14_REL,
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52 JAG_LOAD_R15_REL,
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53 JAG_STOREB,
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54 JAG_STOREW,
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55 JAG_STORE,
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56 GPU_STOREP,
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57 DSP_MIRROR = GPU_STOREP,
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58 JAG_STORE_R14_REL,
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59 JAG_STORE_R15_REL,
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60 JAG_MOVE_PC,
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61 JAG_JUMP,
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62 JAG_JR,
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63 JAG_MMULT,
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64 JAG_MTOI,
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65 JAG_NORMI,
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66 JAG_NOP,
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67 JAG_LOAD_R14_INDEXED,
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68 JAG_LOAD_R15_INDEXED,
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69 JAG_STORE_R14_INDEXED,
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70 JAG_STORE_R15_INDEXED,
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71 GPU_SAT24,
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72 GPU_PACK,
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73 DSP_ADDQMOD = GPU_PACK,
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74 GPU_UNPACK //virtual opcode, UNPACK is PACK with a reg1 field set to 1
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75 };
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76
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77 #define JAGCPU_NOREG -1
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78
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79
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80 typedef struct {
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81 cpu_options gen;
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82 int8_t regs[32];
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83 int8_t result;
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84 int8_t resultreg;
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85 int8_t bankptr;
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86 uint8_t is_gpu;
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87 } jag_cpu_options;
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88
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89 typedef struct {
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90 uint32_t read_high;
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91 } jag_gpu;
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92
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93 typedef struct {
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94 uint8_t mac_high;
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95 uint8_t modulo;
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96 } jag_dsp;
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97
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98 typedef struct {
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99 uint32_t cycles;
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100 uint32_t regs[64];
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101 uint32_t *main;
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102 uint32_t *alt;
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103 uint32_t pc;
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104 uint32_t result;
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105 uint32_t flags;
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106 uint32_t flags_pending;
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107 uint32_t remainder;
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108 union {
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109 jag_gpu gpu;
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110 jag_dsp dsp;
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111 };
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112 int8_t writeback;
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113 int8_t resultreg;
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114 uint8_t is_gpu;
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115 } jag_cpu;
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116
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117 uint16_t jag_opcode(uint16_t inst, uint8_t is_gpu);
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118 char * jag_cc(uint16_t inst);
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119 uint16_t jag_reg2(uint16_t inst);
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120 uint32_t jag_jr_dest(uint16_t inst, uint32_t address);
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121 int jag_cpu_disasm(uint16_t **stream, uint32_t address, char *dst, uint8_t is_gpu, uint8_t labels);
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122
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123 #endif