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annotate z80inst.h @ 204:02dfa5962522

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Add support for 2-byte IY instructions to decoder
author Mike Pavone <pavone@retrodev.com>
date Tue, 22 Jan 2013 20:24:14 -0800
parents 0ae589d4c3f9
children 19b323614309
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199
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1 #include <stdint.h>
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2
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3 enum {
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4 Z80_LD,
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5 Z80_PUSH,
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6 Z80_POP,
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7 Z80_EX,
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8 Z80_EXX,
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9 Z80_LDI,
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10 Z80_LDIR,
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11 Z80_LDD,
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12 Z80_LDDR,
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13 Z80_CPI,
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14 Z80_CPIR,
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15 Z80_CPD,
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16 Z80_CPDR,
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17 Z80_ADD,
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18 Z80_ADC,
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19 Z80_SUB,
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20 Z80_SBC,
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21 Z80_AND,
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22 Z80_OR,
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23 Z80_XOR,
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24 Z80_CP,
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25 Z80_INC,
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26 Z80_DEC,
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27 Z80_DAA,
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28 Z80_CPL,
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29 Z80_NEG,
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30 Z80_CCF,
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31 Z80_SCF,
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32 Z80_NOP,
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33 Z80_HALT,
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34 Z80_DI,
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35 Z80_EI,
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36 Z80_IM,
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37 Z80_RLC,
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38 Z80_RL,
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39 Z80_RRC,
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40 Z80_RR,
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41 Z80_SLA,
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42 Z80_SRA,
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43 Z80_SLL,
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44 Z80_SRL,
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45 Z80_RLD,
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46 Z80_RRD,
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47 Z80_BIT,
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48 Z80_SET,
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49 Z80_RES,
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50 Z80_JP,
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51 Z80_JPCC,
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52 Z80_JR,
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53 Z80_JRCC,
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54 Z80_DJNZ,
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55 Z80_CALL,
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56 Z80_CALLCC,
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57 Z80_RET,
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58 Z80_RETCC,
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59 Z80_RETI,
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60 Z80_RETN,
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61 Z80_RST,
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62 Z80_IN,
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63 Z80_INI,
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64 Z80_INIR,
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65 Z80_IND,
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66 Z80_INDR,
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67 Z80_OUT,
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68 Z80_OUTI,
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69 Z80_OTIR,
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70 Z80_OUTD,
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71 Z80_OTDR
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72 };
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73
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74 enum {
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75 Z80_B=0,
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76 Z80_C,
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77 Z80_D,
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78 Z80_E,
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79 Z80_H,
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80 Z80_L,
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81 Z80_A=7,
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82 Z80_IXH,
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83 Z80_IXL,
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84 Z80_IYH,
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85 Z80_IYL,
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86 Z80_I,
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87 Z80_R,
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88 Z80_BC,
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89 Z80_DE,
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90 Z80_HL,
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91 Z80_SP,
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92 Z80_AF,
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93 Z80_IX,
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94 Z80_IY,
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95 Z80_USE_IMMED,
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96 Z80_UNUSED
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97 };
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98
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99 enum {
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100 Z80_CC_NZ,
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101 Z80_CC_Z,
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102 Z80_CC_NC,
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103 Z80_CC_C,
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104 Z80_CC_PO,
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105 Z80_CC_PE,
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106 Z80_CC_P,
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107 Z80_CC_M
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108 };
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109
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110 enum {
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111 Z80_REG,
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112 Z80_REG_INDIRECT,
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113 Z80_IMMED,
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114 Z80_IMMED_INDIRECT,
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115 Z80_IX_DISPLACE,
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116 Z80_IY_DISPLACE
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117 };
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118 #define Z80_DIR 0x80
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119
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120 typedef struct {
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121 uint8_t op;
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122 uint8_t reg;
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123 uint8_t addr_mode;
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124 uint8_t ea_reg;
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125 uint16_t immed;
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126 } z80inst;
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127
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128 uint8_t * z80_decode(uint8_t * istream, z80inst * decoded);
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129 int z80_disasm(z80inst * decoded, char * dst);
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130
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131