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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1186 | savelij | 1 | /* code97c241.c */ |
| 2 | /*****************************************************************************/ |
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| 3 | /* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only */ |
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| 4 | /* */ |
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| 5 | /* AS-Portierung */ |
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| 6 | /* */ |
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| 7 | /* Codegenerator TLCS-9000 */ |
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| 8 | /* */ |
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| 9 | /*****************************************************************************/ |
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| 10 | |||
| 11 | #include "stdinc.h" |
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| 12 | |||
| 13 | #include <string.h> |
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| 14 | #include <ctype.h> |
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| 15 | #include <assert.h> |
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| 16 | |||
| 17 | #include "nls.h" |
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| 18 | #include "strutil.h" |
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| 19 | #include "bpemu.h" |
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| 20 | #include "asmdef.h" |
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| 21 | #include "asmsub.h" |
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| 22 | #include "asmpars.h" |
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| 23 | #include "asmallg.h" |
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| 24 | #include "asmitree.h" |
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| 25 | #include "asmcode.h" |
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| 26 | #include "codepseudo.h" |
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| 27 | #include "intpseudo.h" |
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| 28 | #include "codevars.h" |
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| 29 | #include "errmsg.h" |
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| 30 | #include "operator.h" |
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| 31 | |||
| 32 | #include "code97c241.h" |
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| 33 | |||
| 34 | typedef struct |
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| 35 | { |
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| 36 | Byte Code; |
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| 37 | Byte Mask; /* B0..2=OpSizes, B4=-MayImm, B5=-MayReg */ |
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| 38 | } RMWOrder; |
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| 39 | |||
| 40 | static CPUVar CPU97C241; |
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| 41 | |||
| 42 | static int OpSize, OpSize2; |
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| 43 | static Integer LowLim4, LowLim8; |
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| 44 | |||
| 45 | static Boolean AdrOK; |
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| 46 | static Word AdrMode, AdrMode2; |
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| 47 | static Byte AdrCnt2; |
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| 48 | static Word AdrVals[2], AdrVals2[2]; |
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| 49 | static int AdrInc; |
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| 50 | static Word Prefs[2]; |
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| 51 | static Boolean PrefUsed[2]; |
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| 52 | static char Format; |
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| 53 | static Boolean MinOneIs0; |
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| 54 | |||
| 55 | static RMWOrder *RMWOrders; |
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| 56 | |||
| 57 | static const char Conditions[][4] = |
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| 58 | { |
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| 59 | "C", "NC", |
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| 60 | "Z", "NZ", |
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| 61 | "OV", "NOV", |
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| 62 | "MI", "PL", |
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| 63 | "LE", "GT", |
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| 64 | "LT", "GE", |
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| 65 | "ULE", "UGT", |
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| 66 | "N", "A", |
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| 67 | "ULT", "UGE", |
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| 68 | "EQ", "NE" |
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| 69 | }; |
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| 70 | |||
| 71 | /*--------------------------------------------------------------------------*/ |
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| 72 | |||
| 73 | static int CheckForcePrefix(const char *pArg, Boolean *pForce) |
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| 74 | { |
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| 75 | if (*pArg == '>') |
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| 76 | { |
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| 77 | *pForce = True; |
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| 78 | return 1; |
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| 79 | } |
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| 80 | return 0; |
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| 81 | } |
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| 82 | |||
| 83 | static void AddSignedPrefix(Byte Index, Byte MaxBits, LongInt Value, Boolean Force) |
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| 84 | { |
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| 85 | LongInt Max; |
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| 86 | |||
| 87 | Max = 1l << (MaxBits -1); |
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| 88 | if (Force || ((Value < -Max) || (Value >= Max))) |
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| 89 | { |
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| 90 | PrefUsed[Index] = True; |
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| 91 | Prefs[Index] = (Value >> MaxBits) & 0x7ff; |
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| 92 | } |
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| 93 | } |
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| 94 | |||
| 95 | static Boolean AddRelPrefix(Byte Index, Byte MaxBits, LongInt *Value, Boolean Force) |
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| 96 | { |
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| 97 | LongInt Max1,Max2; |
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| 98 | |||
| 99 | Max1 = 1l << (MaxBits - 1); |
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| 100 | Max2 = 1l << (MaxBits + 10); |
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| 101 | if ((*Value < -Max2) || (*Value >= Max2)) WrError(ErrNum_JmpDistTooBig); |
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| 102 | else |
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| 103 | { |
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| 104 | if (Force || ((*Value < -Max1) || (*Value >= Max1))) |
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| 105 | { |
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| 106 | PrefUsed[Index] = True; |
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| 107 | Prefs[Index] = ((*Value) >> MaxBits) & 0x7ff; |
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| 108 | } |
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| 109 | return True; |
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| 110 | } |
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| 111 | return False; |
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| 112 | } |
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| 113 | |||
| 114 | static void AddAbsPrefix(Byte Index, Byte MaxBits, LongInt Value, Boolean Force) |
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| 115 | { |
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| 116 | LongInt Dist; |
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| 117 | |||
| 118 | Dist = 1l << (MaxBits - 1); |
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| 119 | if (Force || ((Value >= Dist) && (Value < 0x1000000 - Dist))) |
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| 120 | { |
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| 121 | PrefUsed[Index] = True; |
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| 122 | Prefs[Index] = (Value >> MaxBits) & 0x7ff; |
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| 123 | } |
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| 124 | } |
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| 125 | |||
| 126 | static void InsertSinglePrefix(Byte Index) |
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| 127 | { |
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| 128 | if (PrefUsed[Index]) |
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| 129 | { |
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| 130 | memmove(WAsmCode + 1, WAsmCode + 0, CodeLen); |
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| 131 | WAsmCode[0] = Prefs[Index] + 0xd000 + (((Word)Index) << 11); |
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| 132 | CodeLen += 2; |
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| 133 | } |
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| 134 | } |
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| 135 | |||
| 136 | /*!------------------------------------------------------------------------ |
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| 137 | * \fn DecodeRegCore(const char *pArg, Byte *pResult, tSymbolSize *pSize) |
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| 138 | * \brief check whether argument is a CPU register |
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| 139 | * \param pArg source argument |
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| 140 | * \param pResult register number if yes |
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| 141 | * \param pSize register size if yes |
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| 142 | * \return True if yes |
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| 143 | * ------------------------------------------------------------------------ */ |
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| 144 | |||
| 145 | static Boolean DecodeRegCore(const char *pArg, Byte *pResult, tSymbolSize *pSize) |
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| 146 | { |
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| 147 | Boolean OK; |
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| 148 | int l = strlen(pArg); |
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| 149 | |||
| 150 | if (as_toupper(*pArg) != 'R') |
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| 151 | return False; |
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| 152 | l = strlen(pArg); |
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| 153 | if ((l > 4) || (l < 3)) |
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| 154 | return False; |
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| 155 | |||
| 156 | switch (as_toupper(pArg[1])) |
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| 157 | { |
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| 158 | case 'B': |
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| 159 | *pSize = eSymbolSize8Bit; |
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| 160 | break; |
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| 161 | case 'W': |
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| 162 | *pSize = eSymbolSize16Bit; |
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| 163 | break; |
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| 164 | case 'D': |
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| 165 | *pSize = eSymbolSize32Bit; |
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| 166 | break; |
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| 167 | default: |
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| 168 | return False; |
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| 169 | } |
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| 170 | *pResult = ConstLongInt(pArg + 2, &OK, 10); |
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| 171 | if (!OK || (*pResult > 15)) |
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| 172 | return False; |
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| 173 | if ((*pSize == eSymbolSize32Bit) && Odd(*pResult)) |
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| 174 | return False; |
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| 175 | return True; |
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| 176 | } |
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| 177 | |||
| 178 | /*!------------------------------------------------------------------------ |
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| 179 | * \fn DissectReg_97C241(char *pDest, size_t DestSize, tRegInt Value, tSymbolSize InpSize) |
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| 180 | * \brief dissect register symbols - TLCS-9000 variant |
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| 181 | * \param pDest destination buffer |
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| 182 | * \param DestSize destination buffer size |
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| 183 | * \param Value numeric register value |
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| 184 | * \param InpSize register size |
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| 185 | * ------------------------------------------------------------------------ */ |
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| 186 | |||
| 187 | static void DissectReg_97C241(char *pDest, size_t DestSize, tRegInt Value, tSymbolSize InpSize) |
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| 188 | { |
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| 189 | switch (InpSize) |
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| 190 | { |
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| 191 | case eSymbolSize8Bit: |
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| 192 | as_snprintf(pDest, DestSize, "RB%u", (unsigned)Value); |
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| 193 | break; |
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| 194 | case eSymbolSize16Bit: |
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| 195 | as_snprintf(pDest, DestSize, "RW%u", (unsigned)Value); |
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| 196 | break; |
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| 197 | case eSymbolSize32Bit: |
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| 198 | as_snprintf(pDest, DestSize, "RD%u", (unsigned)Value); |
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| 199 | break; |
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| 200 | default: |
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| 201 | as_snprintf(pDest, DestSize, "%d-%u", (int)InpSize, (unsigned)Value); |
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| 202 | } |
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| 203 | } |
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| 204 | |||
| 205 | /*!------------------------------------------------------------------------ |
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| 206 | * \fn tRegEvalResult DecodeReg(const tStrComp *pArg, Byte *pResult, tSymbolSize *pSize, Boolean MustBeReg) |
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| 207 | * \brief check whether argument is a CPU register or register alias |
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| 208 | * \param pArg source argument |
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| 209 | * \param pResult register number if yes |
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| 210 | * \param pSize register size if yes |
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| 211 | * \param MustBeReg True if register is expected |
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| 212 | * \return True if yes |
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| 213 | * ------------------------------------------------------------------------ */ |
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| 214 | |||
| 215 | static tRegEvalResult DecodeReg(const tStrComp *pArg, Byte *pResult, tSymbolSize *pSize, Boolean MustBeReg) |
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| 216 | { |
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| 217 | tRegEvalResult RegEvalResult; |
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| 218 | tEvalResult EvalResult; |
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| 219 | tRegDescr RegDescr; |
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| 220 | |||
| 221 | if (DecodeRegCore(pArg->str.p_str, pResult, pSize)) |
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| 222 | return eIsReg; |
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| 223 | |||
| 224 | RegEvalResult = EvalStrRegExpressionAsOperand(pArg, &RegDescr, &EvalResult, eSymbolSizeUnknown, MustBeReg); |
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| 225 | if (eIsReg == RegEvalResult) |
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| 226 | { |
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| 227 | *pResult = RegDescr.Reg; |
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| 228 | *pSize = EvalResult.DataSize; |
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| 229 | } |
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| 230 | return RegEvalResult; |
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| 231 | } |
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| 232 | |||
| 233 | static Boolean DecodeSpecReg(char *Asc, Byte *Result) |
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| 234 | { |
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| 235 | if (!as_strcasecmp(Asc, "SP")) *Result = 0x8c; |
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| 236 | else if (!as_strcasecmp(Asc, "ISP")) *Result = 0x81; |
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| 237 | else if (!as_strcasecmp(Asc, "ESP")) *Result = 0x83; |
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| 238 | else if (!as_strcasecmp(Asc, "PBP")) *Result = 0x05; |
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| 239 | else if (!as_strcasecmp(Asc, "CBP")) *Result = 0x07; |
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| 240 | else if (!as_strcasecmp(Asc, "PSW")) *Result = 0x89; |
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| 241 | else if (!as_strcasecmp(Asc, "IMC")) *Result = 0x0b; |
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| 242 | else if (!as_strcasecmp(Asc, "CC")) *Result = 0x0e; |
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| 243 | else return False; |
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| 244 | return True; |
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| 245 | } |
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| 246 | |||
| 247 | static Boolean DecodeRegAdr(const tStrComp *pArg, Byte *pResult) |
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| 248 | { |
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| 249 | tSymbolSize Size; |
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| 250 | |||
| 251 | if (DecodeReg(pArg, pResult, &Size, True) != eIsReg) |
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| 252 | return False; |
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| 253 | if (OpSize == eSymbolSizeUnknown) |
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| 254 | OpSize = Size; |
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| 255 | if (Size != OpSize) |
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| 256 | { |
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| 257 | WrError(ErrNum_ConfOpSizes); |
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| 258 | return False; |
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| 259 | } |
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| 260 | *pResult &= 0x3f; |
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| 261 | return True; |
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| 262 | } |
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| 263 | |||
| 264 | typedef enum |
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| 265 | { |
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| 266 | eImmNo, |
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| 267 | eImmYes, |
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| 268 | eImmAsAbs |
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| 269 | } tImmAllow; |
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| 270 | |||
| 271 | #define FreeReg 0xff |
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| 272 | #define SPReg 0xfe |
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| 273 | #define PCReg 0xfd |
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| 274 | |||
| 275 | typedef struct |
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| 276 | { |
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| 277 | as_eval_cb_data_t cb_data; |
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| 278 | Byte base_reg, ind_reg, scale_fact; |
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| 279 | tSymbolSize base_reg_size, ind_reg_size; |
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| 280 | } tlcs9000_eval_cb_data_t; |
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| 281 | |||
| 282 | DECLARE_AS_EVAL_CB(tlcs9000_eval_cb) |
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| 283 | { |
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| 284 | tlcs9000_eval_cb_data_t *p_eval_cb_data = (tlcs9000_eval_cb_data_t*)p_data; |
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| 285 | Byte this_reg; |
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| 286 | tSymbolSize size; |
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| 287 | |||
| 288 | UNUSED(p_res); |
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| 289 | |||
| 290 | switch (DecodeReg(p_arg, &this_reg, &size, False)) |
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| 291 | { |
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| 292 | case eIsReg: |
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| 293 | break; |
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| 294 | case eRegAbort: |
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| 295 | return e_eval_fail; |
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| 296 | default: |
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| 297 | if (!as_strcasecmp(p_arg->str.p_str, "PC")) |
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| 298 | { |
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| 299 | this_reg = PCReg; |
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| 300 | size = eSymbolSize32Bit; |
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| 301 | } |
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| 302 | else if (!as_strcasecmp(p_arg->str.p_str, "SP")) |
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| 303 | { |
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| 304 | this_reg = SPReg; |
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| 305 | size = eSymbolSize32Bit; |
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| 306 | } |
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| 307 | else |
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| 308 | return e_eval_none; |
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| 309 | } |
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| 310 | |||
| 311 | if (size == eSymbolSize8Bit) |
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| 312 | { |
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| 313 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 314 | return e_eval_fail; |
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| 315 | } |
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| 316 | |||
| 317 | /* I.4.c. Basisregister */ |
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| 318 | |||
| 319 | if (as_eval_cb_data_stack_plain_add(p_data->p_stack)) |
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| 320 | { |
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| 321 | if (p_eval_cb_data->base_reg == FreeReg) |
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| 322 | { |
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| 323 | p_eval_cb_data->base_reg = this_reg; |
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| 324 | p_eval_cb_data->base_reg_size = size; |
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| 325 | } |
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| 326 | else if (p_eval_cb_data->ind_reg == FreeReg) |
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| 327 | { |
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| 328 | p_eval_cb_data->ind_reg = this_reg; |
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| 329 | p_eval_cb_data->ind_reg_size = size; |
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| 330 | p_eval_cb_data->scale_fact = 0; |
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| 331 | } |
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| 332 | else |
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| 333 | { |
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| 334 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 335 | return e_eval_fail; |
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| 336 | } |
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| 337 | as_tempres_set_int(p_res, 0); |
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| 338 | return e_eval_ok; |
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| 339 | } |
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| 340 | |||
| 341 | /* I.4.b. Indexregister mit Skalierung */ |
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| 342 | |||
| 343 | else if (p_data->p_stack |
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| 344 | && as_eval_cb_data_stackelem_mul(p_data->p_stack) |
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| 345 | && as_eval_cb_data_stack_plain_add(p_data->p_stack->p_next)) |
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| 346 | { |
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| 347 | if (!p_data->p_other_arg || (p_data->p_other_arg->Typ != TempInt)) |
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| 348 | { |
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| 349 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 350 | return e_eval_fail; |
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| 351 | } |
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| 352 | for (p_eval_cb_data->scale_fact = 0; |
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| 353 | p_eval_cb_data->scale_fact < 4; |
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| 354 | p_eval_cb_data->scale_fact++) |
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| 355 | if (p_data->p_other_arg->Contents.Int == 1 << p_eval_cb_data->scale_fact) |
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| 356 | break; |
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| 357 | if (p_eval_cb_data->scale_fact >= 4) |
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| 358 | { |
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| 359 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 360 | return e_eval_fail; |
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| 361 | } |
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| 362 | if (p_eval_cb_data->ind_reg == FreeReg) |
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| 363 | { |
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| 364 | p_eval_cb_data->ind_reg = this_reg; |
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| 365 | p_eval_cb_data->ind_reg_size = size; |
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| 366 | } |
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| 367 | else |
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| 368 | { |
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| 369 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 370 | return e_eval_fail; |
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| 371 | } |
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| 372 | as_tempres_set_int(p_res, 0); |
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| 373 | return e_eval_ok; |
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| 374 | } |
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| 375 | else |
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| 376 | { |
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| 377 | WrStrErrorPos(ErrNum_InvAddrMode, p_arg); |
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| 378 | return e_eval_fail; |
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| 379 | } |
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| 380 | } |
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| 381 | |||
| 382 | static Boolean force_long_op(TempResult *pErg, TempResult *pLVal, TempResult *pRVal) |
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| 383 | { |
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| 384 | UNUSED(pLVal); |
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| 385 | if (!pRVal) |
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| 386 | return False; |
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| 387 | |||
| 388 | /* clone value as-is */ |
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| 389 | |||
| 390 | as_tempres_copy_value(pErg, pRVal); |
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| 391 | pErg->Flags |= (pLVal->Flags & eSymbolFlags_Promotable) | eSymbolFlag_UserLong; |
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| 392 | pErg->DataSize = pLVal->DataSize; |
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| 393 | return True; |
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| 394 | } |
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| 395 | |||
| 396 | /* NOTE: as unary operator, '>' binds stronger than as binary operator, similar |
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| 397 | to '~' : */ |
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| 398 | |||
| 399 | static const as_operator_t tlcs9000_operators[] = |
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| 400 | { |
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| 401 | { ">" ,1 , e_op_monadic, 1, { TempInt | (TempInt << 4), 0, 0, 0 }, force_long_op}, |
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| 402 | {NULL, 0 , e_op_monadic, 0, { 0, 0, 0, 0, 0 }, NULL} |
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| 403 | }; |
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| 404 | |||
| 405 | static void DecodeAdr(const tStrComp *pArg, Byte PrefInd, tImmAllow MayImm, Boolean MayReg) |
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| 406 | { |
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| 407 | Byte Reg; |
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| 408 | String AdrPartStr; |
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| 409 | tStrComp AdrPart; |
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| 410 | Boolean OK; |
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| 411 | int ArgLen; |
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| 412 | tSymbolSize Size; |
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| 413 | tRegEvalResult RegEvalResult; |
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| 414 | |||
| 415 | AdrCnt = 0; AdrOK = False; |
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| 416 | StrCompMkTemp(&AdrPart, AdrPartStr, sizeof(AdrPartStr)); |
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| 417 | |||
| 418 | /* I. Speicheradresse */ |
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| 419 | |||
| 420 | if (IsIndirect(pArg->str.p_str)) |
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| 421 | { |
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| 422 | tStrComp Arg, TmpComp; |
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| 423 | String Tmp; |
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| 424 | tlcs9000_eval_cb_data_t eval_cb_data; |
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| 425 | tEvalResult eval_result; |
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| 426 | LongInt DispAcc; |
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| 427 | Boolean force_prefix; |
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| 428 | |||
| 429 | StrCompMkTemp(&TmpComp, Tmp, sizeof(Tmp)); |
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| 430 | |||
| 431 | /* I.1. vorkonditionieren */ |
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| 432 | |||
| 433 | StrCompRefRight(&Arg, pArg, 1); |
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| 434 | StrCompShorten(&Arg, 1); |
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| 435 | KillPrefBlanksStrCompRef(&Arg); |
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| 436 | KillPostBlanksStrComp(&Arg); |
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| 437 | |||
| 438 | /* I.2. Predekrement */ |
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| 439 | |||
| 440 | if ((*Arg.str.p_str == '-') && (Arg.str.p_str[1] == '-')) |
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| 441 | { |
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| 442 | tStrComp RegComp; |
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| 443 | |||
| 444 | StrCompRefRight(&RegComp, &Arg, 2); |
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| 445 | if (DecodeReg(&RegComp, &Reg, &Size, True) == eIsReg) |
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| 446 | { |
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| 447 | switch (Size) |
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| 448 | { |
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| 449 | case eSymbolSize16Bit: |
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| 450 | AdrMode = 0x50 + (Reg & 15); |
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| 451 | AdrOK = True; |
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| 452 | break; |
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| 453 | case eSymbolSize32Bit: |
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| 454 | AdrMode = 0x71 + (Reg & 14); |
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| 455 | AdrOK = True; |
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| 456 | break; |
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| 457 | default: |
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| 458 | WrStrErrorPos(ErrNum_InvAddrMode, &Arg); |
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| 459 | break; |
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| 460 | } |
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| 461 | } |
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| 462 | return; |
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| 463 | } |
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| 464 | |||
| 465 | /* I.3. Postinkrement */ |
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| 466 | |||
| 467 | ArgLen = strlen(Arg.str.p_str); |
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| 468 | if ((Arg.str.p_str[ArgLen - 1] == '+') && (Arg.str.p_str[ArgLen - 2] == '+')) |
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| 469 | { |
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| 470 | StrCompCopySub(&AdrPart, &Arg, 0, Arg.Pos.Len - 2); |
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| 471 | if (DecodeReg(&AdrPart, &Reg, &Size, True) == eIsReg) |
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| 472 | { |
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| 473 | switch (Size) |
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| 474 | { |
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| 475 | case eSymbolSize16Bit: |
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| 476 | AdrMode = 0x40 + (Reg & 15); |
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| 477 | AdrOK = True; |
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| 478 | break; |
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| 479 | case eSymbolSize32Bit: |
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| 480 | AdrMode = 0x70 + (Reg & 14); |
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| 481 | AdrOK = True; |
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| 482 | break; |
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| 483 | default: |
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| 484 | WrError(ErrNum_InvAddrMode); |
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| 485 | break; |
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| 486 | } |
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| 487 | return; |
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| 488 | } |
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| 489 | } |
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| 490 | |||
| 491 | /* I.4. Adresskomponenten zerlegen */ |
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| 492 | |||
| 493 | as_eval_cb_data_ini(&eval_cb_data.cb_data, tlcs9000_eval_cb); |
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| 494 | eval_cb_data.cb_data.p_operators = tlcs9000_operators; |
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| 495 | eval_cb_data.base_reg = eval_cb_data.ind_reg = FreeReg; |
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| 496 | eval_cb_data.base_reg_size = eval_cb_data.ind_reg_size = eSymbolSizeUnknown; |
||
| 497 | eval_cb_data.scale_fact = 0; |
||
| 498 | DispAcc = AdrInc + EvalStrIntExprWithResultAndCallback(&Arg, Int32, &eval_result, &eval_cb_data.cb_data); |
||
| 499 | if (!eval_result.OK) |
||
| 500 | return; |
||
| 501 | force_prefix = !!(eval_result.Flags & eSymbolFlag_UserLong); |
||
| 502 | |||
| 503 | /* I.5. Indexregister mit Skalierung 1 als Basis behandeln */ |
||
| 504 | |||
| 505 | if ((eval_cb_data.base_reg == FreeReg) && (eval_cb_data.ind_reg != FreeReg) && (eval_cb_data.scale_fact == 0)) |
||
| 506 | { |
||
| 507 | eval_cb_data.base_reg = eval_cb_data.ind_reg; |
||
| 508 | eval_cb_data.base_reg_size = eval_cb_data.ind_reg_size; |
||
| 509 | eval_cb_data.ind_reg = FreeReg; |
||
| 510 | } |
||
| 511 | |||
| 512 | /* I.6. absolut */ |
||
| 513 | |||
| 514 | if ((eval_cb_data.base_reg == FreeReg) && (eval_cb_data.ind_reg == FreeReg)) |
||
| 515 | { |
||
| 516 | AdrMode = 0x20; /* 0x60 should be equivalent: adding 0 as RW0 or RD0 is irrelvant */ |
||
| 517 | AdrVals[0] = 0xe000 + (DispAcc & 0x1fff); AdrCnt = 2; |
||
| 518 | AddAbsPrefix(PrefInd, 13, DispAcc, force_prefix); |
||
| 519 | AdrOK = True; |
||
| 520 | return; |
||
| 521 | } |
||
| 522 | |||
| 523 | /* I.7. Basis [mit Displacement] */ |
||
| 524 | |||
| 525 | if ((eval_cb_data.base_reg != FreeReg) && (eval_cb_data.ind_reg == FreeReg)) |
||
| 526 | { |
||
| 527 | /* I.7.a. Basis ohne Displacement */ |
||
| 528 | |||
| 529 | if (DispAcc == 0) |
||
| 530 | { |
||
| 531 | if (eval_cb_data.base_reg_size == eSymbolSize16Bit) |
||
| 532 | AdrMode = 0x10 + (eval_cb_data.base_reg & 15); |
||
| 533 | else |
||
| 534 | AdrMode = 0x61 + (eval_cb_data.base_reg & 14); |
||
| 535 | AdrOK = True; |
||
| 536 | return; |
||
| 537 | } |
||
| 538 | |||
| 539 | /* I.7.b. Nullregister mit Displacement muss in Erweiterungswort */ |
||
| 540 | |||
| 541 | else if (eval_cb_data.base_reg == 0) |
||
| 542 | { |
||
| 543 | if (DispAcc > 0x7ffff) WrError(ErrNum_OverRange); |
||
| 544 | else if (DispAcc < -0x80000) WrError(ErrNum_UnderRange); |
||
| 545 | else |
||
| 546 | { |
||
| 547 | AdrMode = 0x20; |
||
| 548 | if (eval_cb_data.base_reg_size == eSymbolSize16Bit) |
||
| 549 | AdrVals[0] = ((Word)eval_cb_data.base_reg & 15) << 11; |
||
| 550 | else |
||
| 551 | AdrVals[0] = (((Word)eval_cb_data.base_reg & 14) << 11) + 0x8000; |
||
| 552 | AdrVals[0] += DispAcc & 0x1ff; |
||
| 553 | AdrCnt = 2; |
||
| 554 | AddSignedPrefix(PrefInd, 9, DispAcc, force_prefix); |
||
| 555 | AdrOK = True; |
||
| 556 | } |
||
| 557 | return; |
||
| 558 | } |
||
| 559 | |||
| 560 | /* I.7.c. Stack mit Displacement: Optimierung moeglich */ |
||
| 561 | |||
| 562 | else if (eval_cb_data.base_reg == SPReg) |
||
| 563 | { |
||
| 564 | if (DispAcc > 0x7ffff) WrError(ErrNum_OverRange); |
||
| 565 | else if (DispAcc < -0x80000) WrError(ErrNum_UnderRange); |
||
| 566 | else if ((DispAcc >= 0) && (DispAcc <= 127)) |
||
| 567 | { |
||
| 568 | AdrMode = 0x80 + (DispAcc & 0x7f); |
||
| 569 | AdrOK = True; |
||
| 570 | } |
||
| 571 | else |
||
| 572 | { |
||
| 573 | AdrMode = 0x20; |
||
| 574 | AdrVals[0] = 0xd000 + (DispAcc & 0x1ff); AdrCnt = 2; |
||
| 575 | AddSignedPrefix(PrefInd, 9, DispAcc, force_prefix); |
||
| 576 | AdrOK = True; |
||
| 577 | } |
||
| 578 | return; |
||
| 579 | } |
||
| 580 | |||
| 581 | /* I.7.d. Programmzaehler mit Displacement: keine Optimierung */ |
||
| 582 | |||
| 583 | else if (eval_cb_data.base_reg == PCReg) |
||
| 584 | { |
||
| 585 | if (DispAcc > 0x7ffff) WrError(ErrNum_OverRange); |
||
| 586 | else if (DispAcc < -0x80000) WrError(ErrNum_UnderRange); |
||
| 587 | else |
||
| 588 | { |
||
| 589 | AdrMode = 0x20; |
||
| 590 | AdrVals[0] = 0xd800 + (DispAcc & 0x1ff); |
||
| 591 | AdrCnt = 2; |
||
| 592 | AddSignedPrefix(PrefInd, 9, DispAcc, force_prefix); |
||
| 593 | AdrOK = True; |
||
| 594 | } |
||
| 595 | return; |
||
| 596 | } |
||
| 597 | |||
| 598 | /* I.7.e. einfaches Basisregister mit Displacement */ |
||
| 599 | |||
| 600 | else |
||
| 601 | { |
||
| 602 | if (DispAcc > 0x7fffff) WrError(ErrNum_OverRange); |
||
| 603 | else if (DispAcc < -0x800000) WrError(ErrNum_UnderRange); |
||
| 604 | else |
||
| 605 | { |
||
| 606 | if (eval_cb_data.base_reg_size == eSymbolSize16Bit) |
||
| 607 | AdrMode = 0x20 + (eval_cb_data.base_reg & 15); |
||
| 608 | else |
||
| 609 | AdrMode = 0x60 + (eval_cb_data.base_reg & 14); |
||
| 610 | AdrVals[0] = 0xe000 + (DispAcc & 0x1fff); |
||
| 611 | AdrCnt = 2; |
||
| 612 | AddSignedPrefix(PrefInd, 13, DispAcc, force_prefix); |
||
| 613 | AdrOK = True; |
||
| 614 | } |
||
| 615 | return; |
||
| 616 | } |
||
| 617 | } |
||
| 618 | |||
| 619 | /* I.8. Index- [und Basisregister] */ |
||
| 620 | |||
| 621 | else |
||
| 622 | { |
||
| 623 | if (DispAcc > 0x7ffff) WrError(ErrNum_OverRange); |
||
| 624 | else if (DispAcc < -0x80000) WrError(ErrNum_UnderRange); |
||
| 625 | else if ((eval_cb_data.ind_reg & 15) == 0) WrError(ErrNum_InvAddrMode); |
||
| 626 | else |
||
| 627 | { |
||
| 628 | if (eval_cb_data.ind_reg_size == eSymbolSize16Bit) |
||
| 629 | AdrMode = 0x20 + (eval_cb_data.ind_reg & 15); |
||
| 630 | else |
||
| 631 | AdrMode = 0x60 + (eval_cb_data.ind_reg & 14); |
||
| 632 | switch (eval_cb_data.base_reg) |
||
| 633 | { |
||
| 634 | case FreeReg: |
||
| 635 | AdrVals[0] = 0xc000; break; |
||
| 636 | case SPReg: |
||
| 637 | AdrVals[0] = 0xd000; break; |
||
| 638 | case PCReg: |
||
| 639 | AdrVals[0] = 0xd800; break; |
||
| 640 | default: |
||
| 641 | if (eval_cb_data.base_reg_size == eSymbolSize16Bit) |
||
| 642 | AdrVals[0] = ((Word)eval_cb_data.base_reg & 15) << 11; |
||
| 643 | else |
||
| 644 | AdrVals[0] = 0x8000 + (((Word)eval_cb_data.base_reg & 14) << 10); |
||
| 645 | } |
||
| 646 | AdrVals[0] += (((Word)eval_cb_data.scale_fact) << 9) + (DispAcc & 0x1ff); |
||
| 647 | AdrCnt = 2; |
||
| 648 | AddSignedPrefix(PrefInd, 9, DispAcc, force_prefix); |
||
| 649 | AdrOK = True; |
||
| 650 | } |
||
| 651 | return; |
||
| 652 | } |
||
| 653 | } |
||
| 654 | |||
| 655 | /* II. Arbeitsregister */ |
||
| 656 | |||
| 657 | else if ((RegEvalResult = DecodeReg(pArg, &Reg, &Size, False)) != eIsNoReg) |
||
| 658 | { |
||
| 659 | if (RegEvalResult == eRegAbort) |
||
| 660 | return; |
||
| 661 | if (!MayReg) WrStrErrorPos(ErrNum_InvAddrMode, pArg); |
||
| 662 | else |
||
| 663 | { |
||
| 664 | if (OpSize == eSymbolSizeUnknown) |
||
| 665 | OpSize = Size; |
||
| 666 | if (Size != OpSize) WrError(ErrNum_ConfOpSizes); |
||
| 667 | else |
||
| 668 | { |
||
| 669 | AdrMode = Reg & 15; |
||
| 670 | AdrOK = True; |
||
| 671 | } |
||
| 672 | } |
||
| 673 | return; |
||
| 674 | } |
||
| 675 | |||
| 676 | /* III. Spezialregister */ |
||
| 677 | |||
| 678 | else if (DecodeSpecReg(pArg->str.p_str, &Reg)) |
||
| 679 | { |
||
| 680 | if (!MayReg) WrError(ErrNum_InvAddrMode); |
||
| 681 | else |
||
| 682 | { |
||
| 683 | if (OpSize == -1) |
||
| 684 | OpSize=Reg >> 6; |
||
| 685 | if ((Reg >> 6) != OpSize) WrError(ErrNum_ConfOpSizes); |
||
| 686 | else |
||
| 687 | { |
||
| 688 | AdrMode = 0x30 + (Reg & 15); |
||
| 689 | AdrOK = True; |
||
| 690 | } |
||
| 691 | } |
||
| 692 | return; |
||
| 693 | } |
||
| 694 | |||
| 695 | else switch (MayImm) |
||
| 696 | { |
||
| 697 | case eImmNo: |
||
| 698 | WrError(ErrNum_InvAddrMode); |
||
| 699 | break; |
||
| 700 | case eImmAsAbs: |
||
| 701 | { |
||
| 702 | Boolean ForcePrefix = False; |
||
| 703 | LongInt DispAcc = EvalStrIntExpressionOffs(pArg, CheckForcePrefix(pArg->str.p_str, &ForcePrefix), Int32, &AdrOK); |
||
| 704 | |||
| 705 | if (AdrOK) |
||
| 706 | { |
||
| 707 | AdrMode = 0x20; /* 0x60 should be equivalent: adding 0 as RW0 or RD0 is irrelvant */ |
||
| 708 | AdrVals[0] = 0xe000 + (DispAcc & 0x1fff); AdrCnt = 2; |
||
| 709 | AddAbsPrefix(PrefInd, 13, DispAcc, ForcePrefix); |
||
| 710 | AdrOK = True; |
||
| 711 | } |
||
| 712 | break; |
||
| 713 | } |
||
| 714 | case eImmYes: |
||
| 715 | if ((OpSize == -1) && (MinOneIs0)) |
||
| 716 | OpSize = 0; |
||
| 717 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 718 | else |
||
| 719 | { |
||
| 720 | AdrMode = 0x30; |
||
| 721 | switch (OpSize) |
||
| 722 | { |
||
| 723 | case 0: |
||
| 724 | AdrVals[0] = EvalStrIntExpression(pArg, Int8, &OK) & 0xff; |
||
| 725 | if (OK) |
||
| 726 | { |
||
| 727 | AdrCnt = 2; |
||
| 728 | AdrOK = True; |
||
| 729 | } |
||
| 730 | break; |
||
| 731 | case 1: |
||
| 732 | AdrVals[0] = EvalStrIntExpression(pArg, Int16, &OK); |
||
| 733 | if (OK) |
||
| 734 | { |
||
| 735 | AdrCnt = 2; |
||
| 736 | AdrOK = True; |
||
| 737 | } |
||
| 738 | break; |
||
| 739 | case 2: |
||
| 740 | { |
||
| 741 | LongInt DispAcc = EvalStrIntExpression(pArg, Int32, &OK); |
||
| 742 | |||
| 743 | if (OK) |
||
| 744 | { |
||
| 745 | AdrVals[0] = DispAcc & 0xffff; |
||
| 746 | AdrVals[1] = DispAcc >> 16; |
||
| 747 | AdrCnt = 4; |
||
| 748 | AdrOK = True; |
||
| 749 | } |
||
| 750 | break; |
||
| 751 | } |
||
| 752 | } |
||
| 753 | } |
||
| 754 | break; |
||
| 755 | } |
||
| 756 | } |
||
| 757 | |||
| 758 | static void CopyAdr(void) |
||
| 759 | { |
||
| 760 | OpSize2 = OpSize; |
||
| 761 | AdrMode2 = AdrMode; |
||
| 762 | AdrCnt2 = AdrCnt; |
||
| 763 | memcpy(AdrVals2, AdrVals, AdrCnt); |
||
| 764 | } |
||
| 765 | |||
| 766 | static Boolean IsReg(void) |
||
| 767 | { |
||
| 768 | return (AdrMode <= 15); |
||
| 769 | } |
||
| 770 | |||
| 771 | static Boolean Is2Reg(void) |
||
| 772 | { |
||
| 773 | return (AdrMode2 <= 15); |
||
| 774 | } |
||
| 775 | |||
| 776 | static Boolean IsImmediate(void) |
||
| 777 | { |
||
| 778 | return (AdrMode == 0x30); |
||
| 779 | } |
||
| 780 | |||
| 781 | static Boolean Is2Immediate(void) |
||
| 782 | { |
||
| 783 | return (AdrMode2 == 0x30); |
||
| 784 | } |
||
| 785 | |||
| 786 | static LongInt ImmVal(void) |
||
| 787 | { |
||
| 788 | LongInt Tmp1; |
||
| 789 | Integer Tmp2; |
||
| 790 | ShortInt Tmp3; |
||
| 791 | |||
| 792 | switch (OpSize) |
||
| 793 | { |
||
| 794 | case 0: |
||
| 795 | Tmp3 = AdrVals[0] & 0xff; |
||
| 796 | return Tmp3; |
||
| 797 | case 1: |
||
| 798 | Tmp2 = AdrVals[0]; |
||
| 799 | return Tmp2; |
||
| 800 | case 2: |
||
| 801 | Tmp1 = (((LongInt)AdrVals[1]) << 16) + AdrVals[0]; |
||
| 802 | return Tmp1; |
||
| 803 | default: |
||
| 804 | WrError(ErrNum_InternalError); |
||
| 805 | return 0; |
||
| 806 | } |
||
| 807 | } |
||
| 808 | |||
| 809 | static LongInt ImmVal2(void) |
||
| 810 | { |
||
| 811 | LongInt Tmp1; |
||
| 812 | Integer Tmp2; |
||
| 813 | ShortInt Tmp3; |
||
| 814 | |||
| 815 | switch (OpSize) |
||
| 816 | { |
||
| 817 | case 0: |
||
| 818 | Tmp3 = AdrVals2[0] & 0xff; |
||
| 819 | return Tmp3; |
||
| 820 | case 1: |
||
| 821 | Tmp2 = AdrVals2[0]; |
||
| 822 | return Tmp2; |
||
| 823 | case 2: |
||
| 824 | Tmp1 = (((LongInt)AdrVals2[1]) << 16) + AdrVals2[0]; |
||
| 825 | return Tmp1; |
||
| 826 | default: |
||
| 827 | WrError(ErrNum_InternalError); |
||
| 828 | return 0; |
||
| 829 | } |
||
| 830 | } |
||
| 831 | |||
| 832 | static Boolean IsAbsolute(void) |
||
| 833 | { |
||
| 834 | return (((AdrMode == 0x20) || (AdrMode == 0x60)) |
||
| 835 | && (AdrCnt == 2) |
||
| 836 | && ((AdrVals[0] & 0xe000) == 0xe000)); |
||
| 837 | } |
||
| 838 | |||
| 839 | static Boolean Is2Absolute(void) |
||
| 840 | { |
||
| 841 | return (((AdrMode2 == 0x20) || (AdrMode2 == 0x60)) |
||
| 842 | && (AdrCnt2 == 2) |
||
| 843 | && ((AdrVals2[0] & 0xe000) == 0xe000)); |
||
| 844 | } |
||
| 845 | |||
| 846 | static Boolean IsShort(void) |
||
| 847 | { |
||
| 848 | if (AdrMode < 0x30) |
||
| 849 | return True; |
||
| 850 | else if (AdrMode == 0x30) |
||
| 851 | { |
||
| 852 | LongInt ImmValue = ImmVal(); |
||
| 853 | |||
| 854 | return ((ImmValue >= LowLim4) && (ImmValue <= 7)); |
||
| 855 | } |
||
| 856 | else |
||
| 857 | return False; |
||
| 858 | } |
||
| 859 | |||
| 860 | static Boolean Is2Short(void) |
||
| 861 | { |
||
| 862 | if (AdrMode2 < 0x30) |
||
| 863 | return True; |
||
| 864 | else if (AdrMode2 == 0x30) |
||
| 865 | { |
||
| 866 | LongInt ImmValue = ImmVal2(); |
||
| 867 | |||
| 868 | return ((ImmValue >= LowLim4) && (ImmValue <= 7)); |
||
| 869 | } |
||
| 870 | else |
||
| 871 | return False; |
||
| 872 | } |
||
| 873 | |||
| 874 | static void ConvertShort(void) |
||
| 875 | { |
||
| 876 | if (AdrMode == 0x30) |
||
| 877 | { |
||
| 878 | AdrMode += ImmVal() & 15; |
||
| 879 | AdrCnt = 0; |
||
| 880 | } |
||
| 881 | } |
||
| 882 | |||
| 883 | static void Convert2Short(void) |
||
| 884 | { |
||
| 885 | if (AdrMode2 == 0x30) |
||
| 886 | { |
||
| 887 | AdrMode2 += ImmVal2() & 15; |
||
| 888 | AdrCnt2 = 0; |
||
| 889 | } |
||
| 890 | } |
||
| 891 | |||
| 892 | static void SetULowLims(void) |
||
| 893 | { |
||
| 894 | LowLim4 = 0; |
||
| 895 | LowLim8 = 0; |
||
| 896 | } |
||
| 897 | |||
| 898 | static void AddPrefixes(void) |
||
| 899 | { |
||
| 900 | if (CodeLen != 0) |
||
| 901 | { |
||
| 902 | InsertSinglePrefix(1); |
||
| 903 | InsertSinglePrefix(0); |
||
| 904 | } |
||
| 905 | } |
||
| 906 | |||
| 907 | static Boolean DecodeCondition(const char *pAsc, Word *pCondition) |
||
| 908 | { |
||
| 909 | size_t z; |
||
| 910 | |||
| 911 | for (z = 0; z < as_array_size(Conditions); z++) |
||
| 912 | if (!as_strcasecmp(pAsc, Conditions[z])) |
||
| 913 | { |
||
| 914 | *pCondition = z; |
||
| 915 | return True; |
||
| 916 | } |
||
| 917 | return False; |
||
| 918 | } |
||
| 919 | |||
| 920 | static char DecideGA(void) |
||
| 921 | { |
||
| 922 | if (((IsShort()) && (Is2Absolute())) |
||
| 923 | || ((Is2Short()) && (IsAbsolute()))) |
||
| 924 | return 'A'; |
||
| 925 | else |
||
| 926 | return 'G'; |
||
| 927 | } |
||
| 928 | |||
| 929 | /*--------------------------------------------------------------------------*/ |
||
| 930 | |||
| 931 | static void DecodeFixed(Word Code) |
||
| 932 | { |
||
| 933 | if (!ChkArgCnt(0, 0)); |
||
| 934 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 935 | else |
||
| 936 | { |
||
| 937 | WAsmCode[0] = Code; |
||
| 938 | CodeLen = 2; |
||
| 939 | } |
||
| 940 | } |
||
| 941 | |||
| 942 | static void DecodeRMW(Word Index) |
||
| 943 | { |
||
| 944 | const RMWOrder *pOrder = RMWOrders + Index; |
||
| 945 | |||
| 946 | if ((OpSize == -1) && (pOrder->Mask & 0x20)) |
||
| 947 | OpSize = 2; |
||
| 948 | if (ChkArgCnt(1, 1)) |
||
| 949 | { |
||
| 950 | tImmAllow AllowImm = (pOrder->Mask & 0x10) ? eImmNo : eImmYes; |
||
| 951 | |||
| 952 | if (!IsIndirect(ArgStr[1].str.p_str) && (pOrder->Mask & 0x20)) |
||
| 953 | AllowImm = eImmAsAbs; |
||
| 954 | DecodeAdr(&ArgStr[1], 0, AllowImm, !(pOrder->Mask & 0x20)); |
||
| 955 | if (AdrOK) |
||
| 956 | { |
||
| 957 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 958 | else if (!(pOrder->Mask & (1 << OpSize))) WrError(ErrNum_InvOpSize); |
||
| 959 | else |
||
| 960 | { |
||
| 961 | WAsmCode[0] = (((Word)OpSize + 1) << 14) + (((Word)pOrder->Code) << 8) + AdrMode; |
||
| 962 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 963 | CodeLen = 2 + AdrCnt; |
||
| 964 | } |
||
| 965 | } |
||
| 966 | } |
||
| 967 | } |
||
| 968 | |||
| 969 | static void DecodeGASI1(Word Code) |
||
| 970 | { |
||
| 971 | if (ChkArgCnt(2, 2)) |
||
| 972 | { |
||
| 973 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 974 | if (AdrOK) |
||
| 975 | { |
||
| 976 | CopyAdr(); |
||
| 977 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 978 | if (AdrOK) |
||
| 979 | { |
||
| 980 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 981 | else |
||
| 982 | { |
||
| 983 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 984 | |||
| 985 | if (Format == ' ') |
||
| 986 | { |
||
| 987 | if (((IsReg()) && (Is2Short())) |
||
| 988 | || ((Is2Reg()) && (IsShort()))) |
||
| 989 | Format = 'S'; |
||
| 990 | else if ((IsImmediate()) && (OpSize > 0) && ((ImmValue > 127) || (ImmValue < -128))) |
||
| 991 | Format = 'I'; |
||
| 992 | else |
||
| 993 | Format = DecideGA(); |
||
| 994 | } |
||
| 995 | switch (Format) |
||
| 996 | { |
||
| 997 | case 'G': |
||
| 998 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 999 | if ((IsImmediate()) && (ImmValue <= 127) && (ImmValue >= -128)) |
||
| 1000 | { |
||
| 1001 | AdrMode = ImmValue & 0xff; |
||
| 1002 | AdrCnt = 0; |
||
| 1003 | } |
||
| 1004 | else |
||
| 1005 | WAsmCode[0] += 0x800; |
||
| 1006 | WAsmCode[0] += AdrMode; |
||
| 1007 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1008 | WAsmCode[1 + (AdrCnt >> 1)] = 0x8400 + (Code << 8) + AdrMode2; |
||
| 1009 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1010 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1011 | break; |
||
| 1012 | case 'A': |
||
| 1013 | if ((IsShort()) && (Is2Absolute())) |
||
| 1014 | { |
||
| 1015 | ConvertShort(); |
||
| 1016 | WAsmCode[0] = 0x3900 |
||
| 1017 | + (((Word)OpSize + 1) << 14) |
||
| 1018 | + ((AdrMode & 0xf0) << 5) |
||
| 1019 | + (AdrMode & 15); |
||
| 1020 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1021 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) + (Code << 13); |
||
| 1022 | CodeLen = 4 + AdrCnt; |
||
| 1023 | } |
||
| 1024 | else if ((Is2Short()) && (IsAbsolute())) |
||
| 1025 | { |
||
| 1026 | Convert2Short(); |
||
| 1027 | WAsmCode[0] = 0x3980 |
||
| 1028 | + (((Word)OpSize + 1) << 14) |
||
| 1029 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1030 | + (AdrMode2 & 15); |
||
| 1031 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1032 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) + (Code << 13); |
||
| 1033 | CodeLen = 4 + AdrCnt2; |
||
| 1034 | } |
||
| 1035 | else WrError(ErrNum_InvAddrMode); |
||
| 1036 | break; |
||
| 1037 | case 'S': |
||
| 1038 | if ((IsShort()) && (Is2Reg())) |
||
| 1039 | { |
||
| 1040 | ConvertShort(); |
||
| 1041 | WAsmCode[0] = 0x0000 |
||
| 1042 | + (((Word)OpSize + 1) << 14) |
||
| 1043 | + (AdrMode & 15) |
||
| 1044 | + ((AdrMode & 0xf0) << 5) |
||
| 1045 | + ((AdrMode2 & 1) << 12) |
||
| 1046 | + ((AdrMode2 & 14) << 4) |
||
| 1047 | + ((Code & 1) << 4) |
||
| 1048 | + ((Code & 2) << 10); |
||
| 1049 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1050 | CodeLen = 2 + AdrCnt; |
||
| 1051 | } |
||
| 1052 | else if ((Is2Short()) && (IsReg())) |
||
| 1053 | { |
||
| 1054 | Convert2Short(); |
||
| 1055 | WAsmCode[0] = 0x0100 |
||
| 1056 | + (((Word)OpSize + 1) << 14) |
||
| 1057 | + (AdrMode2 & 15) |
||
| 1058 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1059 | + ((AdrMode & 1) << 12) |
||
| 1060 | + ((AdrMode & 14) << 4) |
||
| 1061 | + ((Code & 1) << 4) |
||
| 1062 | + ((Code & 2) << 11); |
||
| 1063 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1064 | CodeLen = 2 + AdrCnt2; |
||
| 1065 | } |
||
| 1066 | else WrError(ErrNum_InvAddrMode); |
||
| 1067 | break; |
||
| 1068 | case 'I': |
||
| 1069 | if ((!IsImmediate()) || (OpSize == 0)) WrError(ErrNum_InvAddrMode); |
||
| 1070 | else |
||
| 1071 | { |
||
| 1072 | WAsmCode[0] = AdrMode2 + (((Word)OpSize-1) << 11) + (Code << 8); |
||
| 1073 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1074 | memcpy(WAsmCode + 1 + (AdrCnt2 >> 1), AdrVals, AdrCnt); |
||
| 1075 | CodeLen = 2 + AdrCnt + AdrCnt2; |
||
| 1076 | } |
||
| 1077 | break; |
||
| 1078 | default: |
||
| 1079 | WrError(ErrNum_InvFormat); |
||
| 1080 | } |
||
| 1081 | } |
||
| 1082 | } |
||
| 1083 | } |
||
| 1084 | } |
||
| 1085 | } |
||
| 1086 | |||
| 1087 | static void DecodeGASI2(Word Code) |
||
| 1088 | { |
||
| 1089 | if (ChkArgCnt(2, 2)) |
||
| 1090 | { |
||
| 1091 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1092 | if (AdrOK) |
||
| 1093 | { |
||
| 1094 | CopyAdr(); |
||
| 1095 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1096 | if (AdrOK) |
||
| 1097 | { |
||
| 1098 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1099 | else |
||
| 1100 | { |
||
| 1101 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1102 | |||
| 1103 | if (Format == ' ') |
||
| 1104 | { |
||
| 1105 | if ((IsReg()) && (Is2Reg())) |
||
| 1106 | Format = 'S'; |
||
| 1107 | else if ((IsImmediate()) && (OpSize > 0) && ((ImmValue > 127) || (ImmValue < -128))) |
||
| 1108 | Format = 'I'; |
||
| 1109 | else |
||
| 1110 | Format = DecideGA(); |
||
| 1111 | } |
||
| 1112 | switch (Format) |
||
| 1113 | { |
||
| 1114 | case 'G': |
||
| 1115 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1116 | if ((IsImmediate()) && (ImmValue <= 127) && (ImmValue >= -128)) |
||
| 1117 | { |
||
| 1118 | AdrMode = ImmValue & 0xff; |
||
| 1119 | AdrCnt = 0; |
||
| 1120 | } |
||
| 1121 | else |
||
| 1122 | WAsmCode[0] += 0x800; |
||
| 1123 | WAsmCode[0] += AdrMode; |
||
| 1124 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1125 | WAsmCode[1 + (AdrCnt >> 1)] = 0xc400 + (Code << 8) + AdrMode2; |
||
| 1126 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1127 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1128 | break; |
||
| 1129 | case 'A': |
||
| 1130 | if ((IsShort()) && (Is2Absolute())) |
||
| 1131 | { |
||
| 1132 | ConvertShort(); |
||
| 1133 | WAsmCode[0] = 0x3940 |
||
| 1134 | + (((Word)OpSize+1) << 14) |
||
| 1135 | + ((AdrMode & 0xf0) << 5) |
||
| 1136 | + (AdrMode & 15); |
||
| 1137 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1138 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) + (Code << 13); |
||
| 1139 | CodeLen = 4 + AdrCnt; |
||
| 1140 | } |
||
| 1141 | else if ((Is2Short()) && (IsAbsolute())) |
||
| 1142 | { |
||
| 1143 | Convert2Short(); |
||
| 1144 | WAsmCode[0] = 0x39c0 |
||
| 1145 | + (((Word)OpSize+1) << 14) |
||
| 1146 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1147 | + (AdrMode2 & 15); |
||
| 1148 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1149 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) + (Code << 13); |
||
| 1150 | CodeLen = 4 + AdrCnt2; |
||
| 1151 | } |
||
| 1152 | else WrError(ErrNum_InvAddrMode); |
||
| 1153 | break; |
||
| 1154 | case 'S': |
||
| 1155 | if ((IsReg()) && (Is2Reg())) |
||
| 1156 | { |
||
| 1157 | WAsmCode[0] = 0x3800 |
||
| 1158 | + (((Word)OpSize+1) << 14) |
||
| 1159 | + (AdrMode & 15) |
||
| 1160 | + (AdrMode2 << 4) |
||
| 1161 | + (Code << 9); |
||
| 1162 | CodeLen = 2; |
||
| 1163 | } |
||
| 1164 | else WrError(ErrNum_InvAddrMode); |
||
| 1165 | break; |
||
| 1166 | case 'I': |
||
| 1167 | if ((!IsImmediate()) || (OpSize == 0)) WrError(ErrNum_InvAddrMode); |
||
| 1168 | else |
||
| 1169 | { |
||
| 1170 | WAsmCode[0] = 0x400 + AdrMode2 + (((Word)OpSize-1) << 11) + (Code << 8); |
||
| 1171 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1172 | memcpy(WAsmCode + 1 + (AdrCnt2 >> 1), AdrVals, AdrCnt); |
||
| 1173 | CodeLen = 2 + AdrCnt + AdrCnt2; |
||
| 1174 | } |
||
| 1175 | break; |
||
| 1176 | default: |
||
| 1177 | WrError(ErrNum_InvFormat); |
||
| 1178 | } |
||
| 1179 | } |
||
| 1180 | } |
||
| 1181 | } |
||
| 1182 | } |
||
| 1183 | } |
||
| 1184 | |||
| 1185 | static void DecodeTrinom(Word Code) |
||
| 1186 | { |
||
| 1187 | int Cnt; |
||
| 1188 | Byte Reg; |
||
| 1189 | |||
| 1190 | if (Code == 2) /* MAC */ |
||
| 1191 | LowLim8 = 0; |
||
| 1192 | if (!ChkArgCnt(3, 3)); |
||
| 1193 | else if (DecodeRegAdr(&ArgStr[1], &Reg)) |
||
| 1194 | { |
||
| 1195 | if (Code >= 2) |
||
| 1196 | OpSize--; |
||
| 1197 | if (OpSize < 0) WrError(ErrNum_InvOpSize); |
||
| 1198 | else |
||
| 1199 | { |
||
| 1200 | DecodeAdr(&ArgStr[3], 0, eImmYes, True); |
||
| 1201 | if (AdrOK) |
||
| 1202 | { |
||
| 1203 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1204 | |||
| 1205 | WAsmCode[0] = 0x700; |
||
| 1206 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > LowLim8)) |
||
| 1207 | { |
||
| 1208 | AdrMode = ImmValue & 0xff; |
||
| 1209 | AdrCnt = 0; |
||
| 1210 | } |
||
| 1211 | else |
||
| 1212 | WAsmCode[0] += 0x800; |
||
| 1213 | WAsmCode[0] += (((Word)OpSize + 1) << 14) + AdrMode; |
||
| 1214 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1215 | Cnt = AdrCnt; |
||
| 1216 | DecodeAdr(&ArgStr[2], 1, eImmNo, True); |
||
| 1217 | if (AdrOK) |
||
| 1218 | { |
||
| 1219 | WAsmCode[1 + (Cnt >> 1)] = AdrMode + (Code << 8) + (((Word)Reg) << 11); |
||
| 1220 | memcpy(WAsmCode + 2 + (Cnt >> 1), AdrVals, AdrCnt); |
||
| 1221 | CodeLen = 4 + Cnt + AdrCnt; |
||
| 1222 | } |
||
| 1223 | } |
||
| 1224 | } |
||
| 1225 | } |
||
| 1226 | } |
||
| 1227 | |||
| 1228 | static void DecodeRLM_RRM(Word Code) |
||
| 1229 | { |
||
| 1230 | int Cnt; |
||
| 1231 | Byte Reg; |
||
| 1232 | tSymbolSize Size; |
||
| 1233 | |||
| 1234 | if (!ChkArgCnt(3, 3)); |
||
| 1235 | else if (!DecodeReg(&ArgStr[2], &Reg, &Size, True)); |
||
| 1236 | else if (Size != eSymbolSize16Bit) WrStrErrorPos(ErrNum_InvOpSize, &ArgStr[2]); |
||
| 1237 | else |
||
| 1238 | { |
||
| 1239 | Reg &= 0x3f; |
||
| 1240 | DecodeAdr(&ArgStr[3], 0, eImmYes, True); |
||
| 1241 | if (AdrOK) |
||
| 1242 | { |
||
| 1243 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1244 | |||
| 1245 | WAsmCode[0] = 0x700; |
||
| 1246 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > -128)) |
||
| 1247 | { |
||
| 1248 | AdrMode = ImmValue & 0xff; AdrCnt = 0; |
||
| 1249 | } |
||
| 1250 | else |
||
| 1251 | WAsmCode[0] += 0x800; |
||
| 1252 | WAsmCode[0] += AdrMode; |
||
| 1253 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1254 | Cnt = AdrCnt; |
||
| 1255 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1256 | if (AdrOK) |
||
| 1257 | { |
||
| 1258 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1259 | else |
||
| 1260 | { |
||
| 1261 | WAsmCode[0] += ((Word)OpSize + 1) << 14; |
||
| 1262 | WAsmCode[1 + (Cnt >> 1)] = Code + (((Word)Reg) << 11)+AdrMode; |
||
| 1263 | memcpy(WAsmCode + 2 + (Cnt >> 1), AdrVals, AdrCnt); |
||
| 1264 | CodeLen = 4 + AdrCnt + Cnt; |
||
| 1265 | } |
||
| 1266 | } |
||
| 1267 | } |
||
| 1268 | } |
||
| 1269 | } |
||
| 1270 | |||
| 1271 | static void DecodeBit(Word Code) |
||
| 1272 | { |
||
| 1273 | if (ChkArgCnt(2, 2)) |
||
| 1274 | { |
||
| 1275 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1276 | if (AdrOK) |
||
| 1277 | { |
||
| 1278 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1279 | else |
||
| 1280 | { |
||
| 1281 | CopyAdr(); |
||
| 1282 | OpSize = -1; |
||
| 1283 | MinOneIs0 = True; |
||
| 1284 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1285 | if (AdrOK) |
||
| 1286 | { |
||
| 1287 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1288 | |||
| 1289 | OpSize = OpSize2; |
||
| 1290 | if (Format==' ') |
||
| 1291 | { |
||
| 1292 | if ((Is2Reg()) && (IsImmediate()) |
||
| 1293 | && (ImmValue > 0) |
||
| 1294 | && (ImmValue < (1 << (OpSize + 3)))) |
||
| 1295 | Format = 'S'; |
||
| 1296 | else |
||
| 1297 | Format = DecideGA(); |
||
| 1298 | } |
||
| 1299 | switch (Format) |
||
| 1300 | { |
||
| 1301 | case 'G': |
||
| 1302 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1303 | if ((IsImmediate()) && (ImmValue >= LowLim8) && (ImmValue < 127)) |
||
| 1304 | { |
||
| 1305 | AdrMode = ImmValue & 0xff; |
||
| 1306 | AdrCnt = 0; |
||
| 1307 | } |
||
| 1308 | else |
||
| 1309 | WAsmCode[0] += 0x800; |
||
| 1310 | WAsmCode[0] += AdrMode; |
||
| 1311 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1312 | WAsmCode[1 + (AdrCnt >> 1)] = 0xd400 + (Code << 8) + AdrMode2; |
||
| 1313 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1314 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1315 | break; |
||
| 1316 | case 'A': |
||
| 1317 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1318 | { |
||
| 1319 | Convert2Short(); |
||
| 1320 | WAsmCode[0] = 0x39d0 |
||
| 1321 | + (((Word)OpSize+1) << 14) |
||
| 1322 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1323 | + (AdrMode2 & 15); |
||
| 1324 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1325 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) + (Code << 13); |
||
| 1326 | CodeLen = 4 + AdrCnt2; |
||
| 1327 | } |
||
| 1328 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1329 | { |
||
| 1330 | ConvertShort(); |
||
| 1331 | WAsmCode[0] = 0x3950 |
||
| 1332 | + (((Word)OpSize+1) << 14) |
||
| 1333 | + ((AdrMode & 0xf0) << 5) |
||
| 1334 | + (AdrMode & 15); |
||
| 1335 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1336 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) + (Code << 13); |
||
| 1337 | CodeLen = 4 + AdrCnt; |
||
| 1338 | } |
||
| 1339 | else WrError(ErrNum_InvAddrMode); |
||
| 1340 | break; |
||
| 1341 | case 'S': |
||
| 1342 | if ((Is2Reg()) |
||
| 1343 | && (IsImmediate()) |
||
| 1344 | && (ImmVal() >= 0) |
||
| 1345 | && (ImmVal() < (1 << (3 + OpSize)))) |
||
| 1346 | { |
||
| 1347 | if (OpSize == 2) |
||
| 1348 | { |
||
| 1349 | if (ImmVal() >= 16) |
||
| 1350 | { |
||
| 1351 | AdrVals[0] -= 16; |
||
| 1352 | AdrMode2++; |
||
| 1353 | } |
||
| 1354 | OpSize = 1; |
||
| 1355 | } |
||
| 1356 | if (OpSize == 1) |
||
| 1357 | { |
||
| 1358 | if (ImmVal() < 8) |
||
| 1359 | OpSize=0; |
||
| 1360 | else |
||
| 1361 | AdrVals[0] -= 8; |
||
| 1362 | } |
||
| 1363 | WAsmCode[0] = 0x1700 |
||
| 1364 | + (((Word)OpSize + 1) << 14) |
||
| 1365 | + ((Code & 1) << 7) |
||
| 1366 | + ((Code & 2) << 10) |
||
| 1367 | + (ImmVal() << 4) |
||
| 1368 | + AdrMode2; |
||
| 1369 | CodeLen = 2; |
||
| 1370 | } |
||
| 1371 | else WrError(ErrNum_InvAddrMode); |
||
| 1372 | break; |
||
| 1373 | default: |
||
| 1374 | WrError(ErrNum_InvFormat); |
||
| 1375 | } |
||
| 1376 | } |
||
| 1377 | } |
||
| 1378 | } |
||
| 1379 | } |
||
| 1380 | } |
||
| 1381 | |||
| 1382 | static void DecodeShift(Word Code) |
||
| 1383 | { |
||
| 1384 | if (ChkArgCnt(2, 2)) |
||
| 1385 | { |
||
| 1386 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1387 | if (AdrOK) |
||
| 1388 | { |
||
| 1389 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1390 | else |
||
| 1391 | { |
||
| 1392 | CopyAdr(); |
||
| 1393 | OpSize = -1; |
||
| 1394 | MinOneIs0 = True; |
||
| 1395 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1396 | if (AdrOK) |
||
| 1397 | { |
||
| 1398 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1399 | |||
| 1400 | OpSize = OpSize2; |
||
| 1401 | if (Format==' ') |
||
| 1402 | { |
||
| 1403 | if ((IsImmediate()) && (ImmValue == 1)) |
||
| 1404 | Format = 'S'; |
||
| 1405 | else |
||
| 1406 | Format = DecideGA(); |
||
| 1407 | } |
||
| 1408 | switch (Format) |
||
| 1409 | { |
||
| 1410 | case 'G': |
||
| 1411 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1412 | if ((IsImmediate()) && (ImmValue >= LowLim8) && (ImmVal() < 127)) |
||
| 1413 | { |
||
| 1414 | AdrMode = ImmValue & 0xff; |
||
| 1415 | AdrCnt = 0; |
||
| 1416 | } |
||
| 1417 | else |
||
| 1418 | WAsmCode[0] += 0x800; |
||
| 1419 | WAsmCode[0] += AdrMode; |
||
| 1420 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1421 | WAsmCode[1 + (AdrCnt >> 1)] = 0xb400 |
||
| 1422 | + ((Code & 3) << 8) |
||
| 1423 | + ((Code & 4) << 9) |
||
| 1424 | + AdrMode2; |
||
| 1425 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1426 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1427 | break; |
||
| 1428 | case 'A': |
||
| 1429 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1430 | { |
||
| 1431 | Convert2Short(); |
||
| 1432 | WAsmCode[0] = 0x39b0 |
||
| 1433 | + (((Word)OpSize+1) << 14) |
||
| 1434 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1435 | + (AdrMode2 & 15); |
||
| 1436 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1437 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) + (Code << 13); |
||
| 1438 | CodeLen = 4 + AdrCnt2; |
||
| 1439 | } |
||
| 1440 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1441 | { |
||
| 1442 | ConvertShort(); |
||
| 1443 | WAsmCode[0] = 0x3930 |
||
| 1444 | + (((Word)OpSize+1) << 14) |
||
| 1445 | + ((AdrMode & 0xf0) << 5) |
||
| 1446 | + (AdrMode & 15); |
||
| 1447 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1448 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff)+ (Code << 13); |
||
| 1449 | CodeLen = 4 + AdrCnt; |
||
| 1450 | } |
||
| 1451 | else WrError(ErrNum_InvAddrMode); |
||
| 1452 | break; |
||
| 1453 | case 'S': |
||
| 1454 | if ((IsImmediate()) && (ImmValue == 1)) |
||
| 1455 | { |
||
| 1456 | WAsmCode[0] = 0x2400 |
||
| 1457 | + (((Word)OpSize+1) << 14) |
||
| 1458 | + AdrMode2 |
||
| 1459 | + ((Code & 3) << 8) |
||
| 1460 | + ((Code & 4) << 9); |
||
| 1461 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1462 | CodeLen =2 + AdrCnt2; |
||
| 1463 | } |
||
| 1464 | else WrError(ErrNum_InvAddrMode); |
||
| 1465 | break; |
||
| 1466 | default: |
||
| 1467 | WrError(ErrNum_InvFormat); |
||
| 1468 | } |
||
| 1469 | } |
||
| 1470 | } |
||
| 1471 | } |
||
| 1472 | } |
||
| 1473 | } |
||
| 1474 | |||
| 1475 | static void DecodeBField(Word Code) |
||
| 1476 | { |
||
| 1477 | Byte Reg, Num1, Num2; |
||
| 1478 | Boolean OK; |
||
| 1479 | tSymbolFlags Flags; |
||
| 1480 | tSymbolSize Size; |
||
| 1481 | |||
| 1482 | if (ChkArgCnt(4, 4)) |
||
| 1483 | { |
||
| 1484 | tStrComp *pArg1 = (Code == 2) ? &ArgStr[2] : &ArgStr[1], |
||
| 1485 | *pArg2 = (Code == 2) ? &ArgStr[1] : &ArgStr[2]; |
||
| 1486 | |||
| 1487 | if (!DecodeReg(pArg1, &Reg, &Size, True)); |
||
| 1488 | else if (Size != eSymbolSize16Bit) WrStrErrorPos(ErrNum_InvOpSize, pArg1); |
||
| 1489 | else |
||
| 1490 | { |
||
| 1491 | Reg &= 0x3f; |
||
| 1492 | Num2 = EvalStrIntExpressionWithFlags(&ArgStr[4], Int5, &OK, &Flags); |
||
| 1493 | if (OK) |
||
| 1494 | { |
||
| 1495 | if (mFirstPassUnknown(Flags)) |
||
| 1496 | Num2 &= 15; |
||
| 1497 | Num2--; |
||
| 1498 | if (Num2 > 15) WrError(ErrNum_OverRange); |
||
| 1499 | else if ((OpSize == -1) && (!DecodeRegAdr(pArg2, &Num1))); |
||
| 1500 | else |
||
| 1501 | { |
||
| 1502 | switch (OpSize) |
||
| 1503 | { |
||
| 1504 | case 0: Num1 = EvalStrIntExpression(&ArgStr[3], UInt3, &OK) & 7; break; |
||
| 1505 | case 1: Num1 = EvalStrIntExpression(&ArgStr[3], Int4, &OK) & 15; break; |
||
| 1506 | case 2: Num1 = EvalStrIntExpression(&ArgStr[3], Int5, &OK) & 31; break; |
||
| 1507 | default: abort(); |
||
| 1508 | } |
||
| 1509 | if (OK) |
||
| 1510 | { |
||
| 1511 | if ((OpSize == 2) && (Num1 > 15)) |
||
| 1512 | AdrInc = 2; |
||
| 1513 | DecodeAdr(pArg2, 1, eImmNo, True); |
||
| 1514 | if (AdrOK) |
||
| 1515 | { |
||
| 1516 | if ((OpSize == 2) && (Num1 > 15)) |
||
| 1517 | { |
||
| 1518 | Num1 -= 16; |
||
| 1519 | OpSize--; |
||
| 1520 | if (!(AdrMode & 0xf0)) |
||
| 1521 | AdrMode++; |
||
| 1522 | } |
||
| 1523 | WAsmCode[0] = 0x7000 + (((Word)OpSize + 1) << 8) + AdrMode; |
||
| 1524 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1525 | WAsmCode[1 + (AdrCnt >> 1)] = (((Word)Reg) << 11) |
||
| 1526 | + Num2 |
||
| 1527 | + (((Word)Num1) << 5) |
||
| 1528 | + ((Code & 1) << 10) |
||
| 1529 | + ((Code & 2) << 14); |
||
| 1530 | CodeLen = 4 + AdrCnt; |
||
| 1531 | } |
||
| 1532 | } |
||
| 1533 | } |
||
| 1534 | } |
||
| 1535 | } |
||
| 1536 | } |
||
| 1537 | } |
||
| 1538 | |||
| 1539 | static void DecodeGAEq(Word Code) |
||
| 1540 | { |
||
| 1541 | if (Hi(Code)) |
||
| 1542 | SetULowLims(); |
||
| 1543 | if (ChkArgCnt(2, 2)) |
||
| 1544 | { |
||
| 1545 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1546 | if (AdrOK) |
||
| 1547 | { |
||
| 1548 | CopyAdr(); |
||
| 1549 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1550 | if (AdrOK) |
||
| 1551 | { |
||
| 1552 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1553 | else |
||
| 1554 | { |
||
| 1555 | if (OpSize == 0) |
||
| 1556 | LowLim8 = -128; |
||
| 1557 | if (Format == ' ') |
||
| 1558 | Format = DecideGA(); |
||
| 1559 | switch (Format) |
||
| 1560 | { |
||
| 1561 | case 'G': |
||
| 1562 | { |
||
| 1563 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1564 | |||
| 1565 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1566 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > LowLim8)) |
||
| 1567 | { |
||
| 1568 | AdrMode = ImmValue & 0xff; |
||
| 1569 | AdrCnt = 0; |
||
| 1570 | } |
||
| 1571 | else |
||
| 1572 | WAsmCode[0] += 0x800; |
||
| 1573 | WAsmCode[0] += AdrMode; |
||
| 1574 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1575 | WAsmCode[1 + (AdrCnt >> 1)] = 0x8400 |
||
| 1576 | + AdrMode2 |
||
| 1577 | + ((Code & 0xf0) << 8) |
||
| 1578 | + ((Code & 4) << 9) |
||
| 1579 | + ((Code & 3) << 8); |
||
| 1580 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1581 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1582 | break; |
||
| 1583 | } |
||
| 1584 | case 'A': |
||
| 1585 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1586 | { |
||
| 1587 | Convert2Short(); |
||
| 1588 | WAsmCode[0] = 0x3980 |
||
| 1589 | + (((Word)OpSize + 1) << 14) |
||
| 1590 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1591 | + (AdrMode2 & 15) |
||
| 1592 | + (Code & 0xf0); |
||
| 1593 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1594 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) |
||
| 1595 | + ((Code & 15) << 13); |
||
| 1596 | CodeLen = 4 + AdrCnt2; |
||
| 1597 | } |
||
| 1598 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1599 | { |
||
| 1600 | ConvertShort(); |
||
| 1601 | WAsmCode[0] = 0x3900 |
||
| 1602 | + (((Word)OpSize + 1) << 14) |
||
| 1603 | + ((AdrMode & 0xf0) << 5) |
||
| 1604 | + (AdrMode & 15) |
||
| 1605 | + (Code & 0xf0); |
||
| 1606 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1607 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) |
||
| 1608 | + ((Code & 15) << 13); |
||
| 1609 | CodeLen = 4 + AdrCnt; |
||
| 1610 | } |
||
| 1611 | else WrError(ErrNum_InvAddrMode); |
||
| 1612 | break; |
||
| 1613 | default: |
||
| 1614 | WrError(ErrNum_InvFormat); |
||
| 1615 | } |
||
| 1616 | } |
||
| 1617 | } |
||
| 1618 | } |
||
| 1619 | } |
||
| 1620 | } |
||
| 1621 | |||
| 1622 | static void DecodeGAHalf(Word Code) |
||
| 1623 | { |
||
| 1624 | if (ChkArgCnt(2, 2)) |
||
| 1625 | { |
||
| 1626 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1627 | if (AdrOK) |
||
| 1628 | { |
||
| 1629 | if (OpSize == 0) WrError(ErrNum_InvOpSize); |
||
| 1630 | else |
||
| 1631 | { |
||
| 1632 | if (OpSize != -1) |
||
| 1633 | OpSize--; |
||
| 1634 | CopyAdr(); |
||
| 1635 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1636 | if (AdrOK) |
||
| 1637 | { |
||
| 1638 | if (OpSize == 2) WrError(ErrNum_InvOpSize); |
||
| 1639 | else if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1640 | else |
||
| 1641 | { |
||
| 1642 | if (Format == ' ') |
||
| 1643 | Format = DecideGA(); |
||
| 1644 | switch (Format) |
||
| 1645 | { |
||
| 1646 | case 'G': |
||
| 1647 | { |
||
| 1648 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1649 | |||
| 1650 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1651 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > LowLim8)) |
||
| 1652 | { |
||
| 1653 | AdrMode = ImmValue & 0xff; |
||
| 1654 | AdrCnt = 0; |
||
| 1655 | } |
||
| 1656 | else |
||
| 1657 | WAsmCode[0] += 0x800; |
||
| 1658 | WAsmCode[0] += AdrMode; |
||
| 1659 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1660 | WAsmCode[1 + (AdrCnt >> 1)] = 0x8400 |
||
| 1661 | + AdrMode2 |
||
| 1662 | + ((Code & 0xf0) << 8) |
||
| 1663 | + ((Code & 4) << 9) |
||
| 1664 | + ((Code & 3) << 8); |
||
| 1665 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1666 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1667 | break; |
||
| 1668 | } |
||
| 1669 | case 'A': |
||
| 1670 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1671 | { |
||
| 1672 | Convert2Short(); |
||
| 1673 | WAsmCode[0] = 0x3980 |
||
| 1674 | + (((Word)OpSize + 1) << 14) |
||
| 1675 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1676 | + (AdrMode2 & 15) |
||
| 1677 | + (Code & 0xf0); |
||
| 1678 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1679 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) |
||
| 1680 | + ((Code & 15) << 13); |
||
| 1681 | CodeLen = 4 + AdrCnt2; |
||
| 1682 | } |
||
| 1683 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1684 | { |
||
| 1685 | ConvertShort(); |
||
| 1686 | WAsmCode[0] = 0x3900 |
||
| 1687 | + (((Word)OpSize + 1) << 14) |
||
| 1688 | + ((AdrMode & 0xf0) << 5) |
||
| 1689 | + (AdrMode & 15) |
||
| 1690 | + (Code & 0xf0); |
||
| 1691 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1692 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) |
||
| 1693 | + ((Code & 15) << 13); |
||
| 1694 | CodeLen = 4 + AdrCnt; |
||
| 1695 | } |
||
| 1696 | else WrError(ErrNum_InvAddrMode); |
||
| 1697 | break; |
||
| 1698 | default: |
||
| 1699 | WrError(ErrNum_InvFormat); |
||
| 1700 | } |
||
| 1701 | } |
||
| 1702 | } |
||
| 1703 | } |
||
| 1704 | } |
||
| 1705 | } |
||
| 1706 | } |
||
| 1707 | |||
| 1708 | static void DecodeGAFirst(Word Code) |
||
| 1709 | { |
||
| 1710 | if (ChkArgCnt(2, 2)) |
||
| 1711 | { |
||
| 1712 | DecodeAdr(&ArgStr[1], 1, (Memo("STCF") || Memo("TSET")) ? eImmNo : eImmYes, True); |
||
| 1713 | if (AdrOK) |
||
| 1714 | { |
||
| 1715 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1716 | else |
||
| 1717 | { |
||
| 1718 | CopyAdr(); |
||
| 1719 | OpSize = -1; |
||
| 1720 | MinOneIs0 = True; |
||
| 1721 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1722 | OpSize = OpSize2; |
||
| 1723 | if (AdrOK) |
||
| 1724 | { |
||
| 1725 | if (Format == ' ') |
||
| 1726 | Format = DecideGA(); |
||
| 1727 | switch (Format) |
||
| 1728 | { |
||
| 1729 | case 'G': |
||
| 1730 | { |
||
| 1731 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1732 | |||
| 1733 | WAsmCode[0] = 0x700 |
||
| 1734 | + (((Word)OpSize + 1) << 14); |
||
| 1735 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > LowLim8)) |
||
| 1736 | { |
||
| 1737 | AdrMode = ImmValue & 0xff; |
||
| 1738 | AdrCnt = 0; |
||
| 1739 | } |
||
| 1740 | else WAsmCode[0] += 0x800; |
||
| 1741 | WAsmCode[0] += AdrMode; |
||
| 1742 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1743 | WAsmCode[1 + (AdrCnt >> 1)] = 0x8400 |
||
| 1744 | + AdrMode2 |
||
| 1745 | + ((Code & 0xf0) << 8) |
||
| 1746 | + ((Code & 4) << 9) |
||
| 1747 | + ((Code & 3) << 8); |
||
| 1748 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 1749 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1750 | break; |
||
| 1751 | } |
||
| 1752 | case 'A': |
||
| 1753 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1754 | { |
||
| 1755 | Convert2Short(); |
||
| 1756 | WAsmCode[0] = 0x3980 |
||
| 1757 | + (((Word)OpSize + 1) << 14) |
||
| 1758 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1759 | + (AdrMode2 & 15) |
||
| 1760 | + (Code & 0xf0); |
||
| 1761 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1762 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) |
||
| 1763 | + ((Code & 15) << 13); |
||
| 1764 | CodeLen = 4 + AdrCnt2; |
||
| 1765 | } |
||
| 1766 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1767 | { |
||
| 1768 | ConvertShort(); |
||
| 1769 | WAsmCode[0] = 0x3900 |
||
| 1770 | + (((Word)OpSize + 1) << 14) |
||
| 1771 | + ((AdrMode & 0xf0) << 5) |
||
| 1772 | + (AdrMode & 15) |
||
| 1773 | + (Code & 0xf0); |
||
| 1774 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1775 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) |
||
| 1776 | + ((Code & 15) << 13); |
||
| 1777 | CodeLen = 4 + AdrCnt; |
||
| 1778 | } |
||
| 1779 | else WrError(ErrNum_InvAddrMode); |
||
| 1780 | break; |
||
| 1781 | default: |
||
| 1782 | WrError(ErrNum_InvFormat); |
||
| 1783 | } |
||
| 1784 | } |
||
| 1785 | } |
||
| 1786 | } |
||
| 1787 | } |
||
| 1788 | } |
||
| 1789 | |||
| 1790 | static void DecodeGASecond(Word Code) |
||
| 1791 | { |
||
| 1792 | if (ChkArgCnt(2, 2)) |
||
| 1793 | { |
||
| 1794 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1795 | if (AdrOK) |
||
| 1796 | { |
||
| 1797 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1798 | else |
||
| 1799 | { |
||
| 1800 | CopyAdr(); |
||
| 1801 | OpSize = -1; |
||
| 1802 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1803 | OpSize = OpSize2; |
||
| 1804 | if (AdrOK) |
||
| 1805 | { |
||
| 1806 | if (Format == ' ') |
||
| 1807 | Format = DecideGA(); |
||
| 1808 | switch (Format) |
||
| 1809 | { |
||
| 1810 | case 'G': |
||
| 1811 | WAsmCode[0] = 0x700 + (((Word)OpSize + 1) << 14); |
||
| 1812 | if ((Is2Immediate()) && (ImmVal2() < 127) && (ImmVal2() > LowLim8)) |
||
| 1813 | { |
||
| 1814 | AdrMode2 = ImmVal2() & 0xff; |
||
| 1815 | AdrCnt = 0; |
||
| 1816 | } |
||
| 1817 | else |
||
| 1818 | WAsmCode[0] += 0x800; |
||
| 1819 | WAsmCode[0] += AdrMode2; |
||
| 1820 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1821 | WAsmCode[1 + (AdrCnt2 >> 1)] = 0x8400 |
||
| 1822 | + AdrMode |
||
| 1823 | + ((Code & 0xf0) << 8) |
||
| 1824 | + ((Code & 4) << 9) |
||
| 1825 | + ((Code & 3) << 8); |
||
| 1826 | memcpy(WAsmCode + 2 + (AdrCnt2 >> 1), AdrVals, AdrCnt); |
||
| 1827 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1828 | break; |
||
| 1829 | case 'A': |
||
| 1830 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1831 | { |
||
| 1832 | Convert2Short(); |
||
| 1833 | WAsmCode[0] = 0x3900 |
||
| 1834 | + (((Word)OpSize + 1) << 14) |
||
| 1835 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1836 | + (AdrMode2 & 15) |
||
| 1837 | + (Code & 0xf0); |
||
| 1838 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1839 | WAsmCode[1 + (AdrCnt2 >> 1)] = (AdrVals[0] & 0x1fff) |
||
| 1840 | + ((Code & 15) << 13); |
||
| 1841 | CodeLen = 4 + AdrCnt2; |
||
| 1842 | } |
||
| 1843 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1844 | { |
||
| 1845 | ConvertShort(); |
||
| 1846 | WAsmCode[0] = 0x3980 + (((Word)OpSize + 1) << 14) |
||
| 1847 | + ((AdrMode & 0xf0) << 5) |
||
| 1848 | + (AdrMode & 15) |
||
| 1849 | + (Code & 0xf0); |
||
| 1850 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1851 | WAsmCode[1 + (AdrCnt >> 1)] = (AdrVals2[0] & 0x1fff) |
||
| 1852 | + ((Code & 15) << 13); |
||
| 1853 | CodeLen = 4 + AdrCnt; |
||
| 1854 | } |
||
| 1855 | else WrError(ErrNum_InvAddrMode); |
||
| 1856 | break; |
||
| 1857 | default: |
||
| 1858 | WrError(ErrNum_InvFormat); |
||
| 1859 | } |
||
| 1860 | } |
||
| 1861 | } |
||
| 1862 | } |
||
| 1863 | } |
||
| 1864 | } |
||
| 1865 | |||
| 1866 | static void DecodeCHK_CHKS(Word IsSigned) |
||
| 1867 | { |
||
| 1868 | if (!IsSigned) |
||
| 1869 | SetULowLims(); |
||
| 1870 | if (ChkArgCnt(2, 2)) |
||
| 1871 | { |
||
| 1872 | DecodeAdr(&ArgStr[2], 1, eImmNo, True); |
||
| 1873 | if (AdrOK) |
||
| 1874 | { |
||
| 1875 | if ((OpSize != 1) && (OpSize != 2)) WrError(ErrNum_InvOpSize); |
||
| 1876 | else if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1877 | else |
||
| 1878 | { |
||
| 1879 | CopyAdr(); |
||
| 1880 | DecodeAdr(&ArgStr[1], 0, eImmNo, False); |
||
| 1881 | if (AdrOK) |
||
| 1882 | { |
||
| 1883 | if (OpSize == 0) |
||
| 1884 | LowLim8 = -128; |
||
| 1885 | if (Format == ' ') |
||
| 1886 | Format = DecideGA(); |
||
| 1887 | switch (Format) |
||
| 1888 | { |
||
| 1889 | case 'G': |
||
| 1890 | WAsmCode[0] = 0xf00 + (((Word)OpSize + 1) << 14) + AdrMode2; |
||
| 1891 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1892 | WAsmCode[1 + (AdrCnt2 >> 1)] = 0xa600 + AdrMode |
||
| 1893 | + (IsSigned << 8); |
||
| 1894 | memcpy(WAsmCode + 2 + (AdrCnt2 >> 1), AdrVals, AdrCnt); |
||
| 1895 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 1896 | break; |
||
| 1897 | case 'A': |
||
| 1898 | if ((IsAbsolute()) && (Is2Short())) |
||
| 1899 | { |
||
| 1900 | Convert2Short(); |
||
| 1901 | WAsmCode[0] = 0x3920 |
||
| 1902 | + (((Word)OpSize + 1) << 14) |
||
| 1903 | + ((AdrMode2 & 0xf0) << 5) |
||
| 1904 | + (AdrMode2 & 15); |
||
| 1905 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 1906 | WAsmCode[1 + (AdrCnt2 >> 1)] = 0x4000 |
||
| 1907 | + (AdrVals[0] & 0x1fff) |
||
| 1908 | + (IsSigned << 13); |
||
| 1909 | CodeLen = 4 + AdrCnt2; |
||
| 1910 | } |
||
| 1911 | else if ((Is2Absolute()) && (IsShort())) |
||
| 1912 | { |
||
| 1913 | ConvertShort(); |
||
| 1914 | WAsmCode[0] = 0x39a0 |
||
| 1915 | + (((Word)OpSize + 1) << 14) |
||
| 1916 | + ((AdrMode & 0xf0) << 5) |
||
| 1917 | + (AdrMode & 15); |
||
| 1918 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1919 | WAsmCode[1 + (AdrCnt >> 1)] = 0x4000 |
||
| 1920 | + (AdrVals2[0] & 0x1fff) |
||
| 1921 | + (IsSigned << 13); |
||
| 1922 | CodeLen = 4 + AdrCnt; |
||
| 1923 | } |
||
| 1924 | else WrError(ErrNum_InvAddrMode); |
||
| 1925 | break; |
||
| 1926 | default: |
||
| 1927 | WrError(ErrNum_InvFormat); |
||
| 1928 | } |
||
| 1929 | } |
||
| 1930 | } |
||
| 1931 | } |
||
| 1932 | } |
||
| 1933 | } |
||
| 1934 | |||
| 1935 | static void DecodeString(Word Code) |
||
| 1936 | { |
||
| 1937 | Byte Reg; |
||
| 1938 | int Cnt; |
||
| 1939 | tSymbolSize Size; |
||
| 1940 | |||
| 1941 | if (!ChkArgCnt(3, 3)); |
||
| 1942 | else if (!DecodeReg(&ArgStr[3], &Reg, &Size, True)); |
||
| 1943 | else if (Size != eSymbolSize16Bit) WrStrErrorPos(ErrNum_InvOpSize, &ArgStr[3]); |
||
| 1944 | else |
||
| 1945 | { |
||
| 1946 | Reg &= 0x3f; |
||
| 1947 | DecodeAdr(&ArgStr[2], 0, eImmYes, True); |
||
| 1948 | if (AdrOK) |
||
| 1949 | { |
||
| 1950 | LongInt ImmValue = IsImmediate() ? ImmVal() : 0; |
||
| 1951 | |||
| 1952 | WAsmCode[0] = 0x700; |
||
| 1953 | if ((IsImmediate()) && (ImmValue < 127) && (ImmValue > LowLim8)) |
||
| 1954 | { |
||
| 1955 | AdrMode = ImmValue & 0xff; |
||
| 1956 | AdrCnt = 0; |
||
| 1957 | } |
||
| 1958 | else |
||
| 1959 | WAsmCode[0] += 0x800; |
||
| 1960 | WAsmCode[0] += AdrMode; |
||
| 1961 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 1962 | Cnt = AdrCnt; |
||
| 1963 | DecodeAdr(&ArgStr[1], 1, eImmYes, True); |
||
| 1964 | if (AdrOK) |
||
| 1965 | { |
||
| 1966 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1967 | else |
||
| 1968 | { |
||
| 1969 | WAsmCode[0] += ((Word)OpSize + 1) << 14; |
||
| 1970 | WAsmCode[1 + (Cnt >> 1)] = 0x8000 + AdrMode + (Code << 8) + (((Word)Reg) << 11); |
||
| 1971 | memcpy(WAsmCode + 2 + (Cnt >> 1), AdrVals, AdrCnt); |
||
| 1972 | CodeLen = 4 + AdrCnt + Cnt; |
||
| 1973 | } |
||
| 1974 | } |
||
| 1975 | } |
||
| 1976 | } |
||
| 1977 | } |
||
| 1978 | |||
| 1979 | static void DecodeEX(Word Code) |
||
| 1980 | { |
||
| 1981 | UNUSED(Code); |
||
| 1982 | |||
| 1983 | if (ChkArgCnt(2, 2)) |
||
| 1984 | { |
||
| 1985 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 1986 | if (AdrOK) |
||
| 1987 | { |
||
| 1988 | CopyAdr(); |
||
| 1989 | DecodeAdr(&ArgStr[2], 0, eImmNo, True); |
||
| 1990 | if (AdrOK) |
||
| 1991 | { |
||
| 1992 | if (OpSize == -1) WrError(ErrNum_UndefOpSizes); |
||
| 1993 | else |
||
| 1994 | { |
||
| 1995 | if (Format == ' ') |
||
| 1996 | { |
||
| 1997 | if ((IsReg()) && (Is2Reg())) |
||
| 1998 | Format = 'S'; |
||
| 1999 | else |
||
| 2000 | Format = DecideGA(); |
||
| 2001 | } |
||
| 2002 | switch (Format) |
||
| 2003 | { |
||
| 2004 | case 'G': |
||
| 2005 | WAsmCode[0] = 0x0f00 + (((Word)OpSize + 1) << 14) + AdrMode; |
||
| 2006 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 2007 | WAsmCode[1 + (AdrCnt >> 1)] = 0x8f00 + AdrMode2; |
||
| 2008 | memcpy(WAsmCode + 2 + (AdrCnt >> 1), AdrVals2, AdrCnt2); |
||
| 2009 | CodeLen = 4 + AdrCnt + AdrCnt2; |
||
| 2010 | break; |
||
| 2011 | case 'A': |
||
| 2012 | if ((IsAbsolute()) && (Is2Short())) |
||
| 2013 | { |
||
| 2014 | Convert2Short(); |
||
| 2015 | WAsmCode[0] = 0x3980 |
||
| 2016 | + (((Word)OpSize + 1) << 14) |
||
| 2017 | + ((AdrMode2 & 0xf0) << 5) |
||
| 2018 | + (AdrMode2 & 15); |
||
| 2019 | memcpy(WAsmCode + 1, AdrVals2, AdrCnt2); |
||
| 2020 | WAsmCode[1 + (AdrCnt2 >> 1)] = AdrVals[0]; |
||
| 2021 | CodeLen = 4 + AdrCnt2; |
||
| 2022 | } |
||
| 2023 | else if ((Is2Absolute()) && (IsShort())) |
||
| 2024 | { |
||
| 2025 | ConvertShort(); |
||
| 2026 | WAsmCode[0] = 0x3900 |
||
| 2027 | + (((Word)OpSize + 1) << 14) |
||
| 2028 | + ((AdrMode & 0xf0) << 5) |
||
| 2029 | + (AdrMode & 15); |
||
| 2030 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 2031 | WAsmCode[1 + (AdrCnt >> 1)] = AdrVals2[0]; |
||
| 2032 | CodeLen = 4 + AdrCnt; |
||
| 2033 | } |
||
| 2034 | else WrError(ErrNum_InvAddrMode); |
||
| 2035 | break; |
||
| 2036 | case 'S': |
||
| 2037 | if ((IsReg()) && (Is2Reg())) |
||
| 2038 | { |
||
| 2039 | WAsmCode[0] = 0x3e00 |
||
| 2040 | + (((Word)OpSize + 1) << 14) |
||
| 2041 | + (AdrMode2 << 4) |
||
| 2042 | + AdrMode; |
||
| 2043 | CodeLen = 2; |
||
| 2044 | } |
||
| 2045 | else WrError(ErrNum_InvAddrMode); |
||
| 2046 | break; |
||
| 2047 | default: |
||
| 2048 | WrError(ErrNum_InvFormat); |
||
| 2049 | } |
||
| 2050 | } |
||
| 2051 | } |
||
| 2052 | } |
||
| 2053 | } |
||
| 2054 | } |
||
| 2055 | |||
| 2056 | static void DecodeCALR_JR(Word Code) |
||
| 2057 | { |
||
| 2058 | if (!ChkArgCnt(1, 1)); |
||
| 2059 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 2060 | else |
||
| 2061 | { |
||
| 2062 | LongInt AdrInt; |
||
| 2063 | Boolean OK, ForcePrefix = False; |
||
| 2064 | |||
| 2065 | AdrInt = EvalStrIntExpressionOffs(&ArgStr[1], CheckForcePrefix(ArgStr[1].str.p_str, &ForcePrefix), Int32, &OK) - EProgCounter(); |
||
| 2066 | if ((OK) && (AddRelPrefix(0, 13, &AdrInt, ForcePrefix))) |
||
| 2067 | { |
||
| 2068 | if (Odd(AdrInt)) WrError(ErrNum_DistIsOdd); |
||
| 2069 | else |
||
| 2070 | { |
||
| 2071 | WAsmCode[0] = Code + (AdrInt & 0x1ffe); |
||
| 2072 | CodeLen = 2; |
||
| 2073 | } |
||
| 2074 | } |
||
| 2075 | } |
||
| 2076 | } |
||
| 2077 | |||
| 2078 | static void DecodeJRC(Word Code) |
||
| 2079 | { |
||
| 2080 | UNUSED(Code); |
||
| 2081 | |||
| 2082 | if (!ChkArgCnt(2, 2)); |
||
| 2083 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 2084 | else |
||
| 2085 | { |
||
| 2086 | Word Condition; |
||
| 2087 | |||
| 2088 | if (!DecodeCondition(ArgStr[1].str.p_str, &Condition)) WrStrErrorPos(ErrNum_UndefCond, &ArgStr[1]); |
||
| 2089 | else |
||
| 2090 | { |
||
| 2091 | LongInt AdrInt; |
||
| 2092 | Boolean OK, ForcePrefix = False; |
||
| 2093 | |||
| 2094 | Condition %= 16; |
||
| 2095 | AdrInt = EvalStrIntExpressionOffs(&ArgStr[2], CheckForcePrefix(ArgStr[2].str.p_str, &ForcePrefix), Int32, &OK) - EProgCounter(); |
||
| 2096 | if ((OK) && (AddRelPrefix(0, 9, &AdrInt, ForcePrefix))) |
||
| 2097 | { |
||
| 2098 | if (Odd(AdrInt)) WrError(ErrNum_DistIsOdd); |
||
| 2099 | else |
||
| 2100 | { |
||
| 2101 | WAsmCode[0] = 0x1000 + ((Condition & 14) << 8) + (AdrInt & 0x1fe) + (Condition & 1); |
||
| 2102 | CodeLen = 2; |
||
| 2103 | } |
||
| 2104 | } |
||
| 2105 | } |
||
| 2106 | } |
||
| 2107 | } |
||
| 2108 | |||
| 2109 | static void DecodeJRBC_JRBS(Word Code) |
||
| 2110 | { |
||
| 2111 | if (!ChkArgCnt(3, 3)); |
||
| 2112 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 2113 | else |
||
| 2114 | { |
||
| 2115 | int z; |
||
| 2116 | Boolean OK; |
||
| 2117 | |||
| 2118 | z = EvalStrIntExpression(&ArgStr[1], UInt3, &OK); |
||
| 2119 | if (OK) |
||
| 2120 | { |
||
| 2121 | Boolean AdrLongPrefix = False; |
||
| 2122 | LongInt AdrLong; |
||
| 2123 | |||
| 2124 | AdrLong = EvalStrIntExpressionOffs(&ArgStr[2], CheckForcePrefix(ArgStr[2].str.p_str, &AdrLongPrefix), Int24, &OK); |
||
| 2125 | if (OK) |
||
| 2126 | { |
||
| 2127 | LongInt AdrInt; |
||
| 2128 | Boolean AdrIntPrefix = False; |
||
| 2129 | |||
| 2130 | AddAbsPrefix(1, 13, AdrLong, AdrLongPrefix); |
||
| 2131 | AdrInt = EvalStrIntExpressionOffs(&ArgStr[3], CheckForcePrefix(ArgStr[3].str.p_str, &AdrIntPrefix), Int32, &OK) - EProgCounter(); |
||
| 2132 | if ((OK) && (AddRelPrefix(0, 9, &AdrInt, AdrIntPrefix))) |
||
| 2133 | { |
||
| 2134 | if (Odd(AdrInt)) WrError(ErrNum_DistIsOdd); |
||
| 2135 | else |
||
| 2136 | { |
||
| 2137 | CodeLen = 4; |
||
| 2138 | WAsmCode[1] = (z << 13) + (AdrLong & 0x1fff); |
||
| 2139 | WAsmCode[0] = Code + (AdrInt & 0x1fe); |
||
| 2140 | } |
||
| 2141 | } |
||
| 2142 | } |
||
| 2143 | } |
||
| 2144 | } |
||
| 2145 | } |
||
| 2146 | |||
| 2147 | static void DecodeDJNZ(Word Code) |
||
| 2148 | { |
||
| 2149 | UNUSED(Code); |
||
| 2150 | |||
| 2151 | if (ChkArgCnt(2, 2)) |
||
| 2152 | { |
||
| 2153 | DecodeAdr(&ArgStr[1], 0, eImmNo, True); |
||
| 2154 | if (AdrOK) |
||
| 2155 | { |
||
| 2156 | if ((OpSize != 1) && (OpSize != 2)) WrError(ErrNum_InvOpSize); |
||
| 2157 | else |
||
| 2158 | { |
||
| 2159 | LongInt AdrInt; |
||
| 2160 | Boolean OK, ForcePrefix = False; |
||
| 2161 | |||
| 2162 | AdrInt = EvalStrIntExpressionOffs(&ArgStr[2], CheckForcePrefix(ArgStr[2].str.p_str, &ForcePrefix), Int32, &OK) - (EProgCounter() + 4 + AdrCnt +2 * Ord(PrefUsed[0])); |
||
| 2163 | if ((OK) && (AddRelPrefix(1, 13, &AdrInt, ForcePrefix))) |
||
| 2164 | { |
||
| 2165 | if (Odd(AdrInt)) WrError(ErrNum_DistIsOdd); |
||
| 2166 | else |
||
| 2167 | { |
||
| 2168 | WAsmCode[0] = 0x3700 + (((Word)OpSize + 1) << 14) + AdrMode; |
||
| 2169 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 2170 | WAsmCode[1 + (AdrCnt >> 1)] = 0xe000 + (AdrInt & 0x1ffe); |
||
| 2171 | CodeLen = 4 + AdrCnt; |
||
| 2172 | } |
||
| 2173 | } |
||
| 2174 | } |
||
| 2175 | } |
||
| 2176 | } |
||
| 2177 | } |
||
| 2178 | |||
| 2179 | static void DecodeDJNZC(Word Code) |
||
| 2180 | { |
||
| 2181 | UNUSED(Code); |
||
| 2182 | |||
| 2183 | if (ChkArgCnt(3, 3)) |
||
| 2184 | { |
||
| 2185 | Word Condition; |
||
| 2186 | |||
| 2187 | if (!DecodeCondition(ArgStr[2].str.p_str, &Condition)) WrStrErrorPos(ErrNum_UndefCond, &ArgStr[2]); |
||
| 2188 | else |
||
| 2189 | { |
||
| 2190 | Condition %= 16; |
||
| 2191 | DecodeAdr(&ArgStr[1], 0, eImmNo, True); |
||
| 2192 | if (AdrOK) |
||
| 2193 | { |
||
| 2194 | if ((OpSize != 1) && (OpSize != 2)) WrError(ErrNum_InvOpSize); |
||
| 2195 | else |
||
| 2196 | { |
||
| 2197 | Boolean OK, ForcePrefix = False; |
||
| 2198 | LongInt AdrInt; |
||
| 2199 | |||
| 2200 | AdrInt = EvalStrIntExpressionOffs(&ArgStr[3], CheckForcePrefix(ArgStr[3].str.p_str, &ForcePrefix), Int32, &OK) - EProgCounter(); |
||
| 2201 | if ((OK) && (AddRelPrefix(1, 13, &AdrInt, ForcePrefix))) |
||
| 2202 | { |
||
| 2203 | if (Odd(AdrInt)) WrError(ErrNum_DistIsOdd); |
||
| 2204 | else |
||
| 2205 | { |
||
| 2206 | WAsmCode[0] = 0x3700 + (((Word)OpSize+1) << 14) + AdrMode; |
||
| 2207 | memcpy(WAsmCode + 1, AdrVals, AdrCnt); |
||
| 2208 | WAsmCode[1 + (AdrCnt >> 1)] = ((Condition & 14) << 12) + (AdrInt & 0x1ffe) + (Condition & 1); |
||
| 2209 | CodeLen =4 + AdrCnt; |
||
| 2210 | } |
||
| 2211 | } |
||
| 2212 | } |
||
| 2213 | } |
||
| 2214 | } |
||
| 2215 | } |
||
| 2216 | } |
||
| 2217 | |||
| 2218 | static void DecodeLINK_RETD(Word Code) |
||
| 2219 | { |
||
| 2220 | if (!ChkArgCnt(1, 1)); |
||
| 2221 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 2222 | else |
||
| 2223 | { |
||
| 2224 | LongInt AdrInt; |
||
| 2225 | Boolean OK, ForcePrefix = False; |
||
| 2226 | tSymbolFlags Flags; |
||
| 2227 | |||
| 2228 | AdrInt = EvalStrIntExpressionOffsWithFlags(&ArgStr[1], CheckForcePrefix(ArgStr[1].str.p_str, &ForcePrefix), Int32, &OK, &Flags); |
||
| 2229 | if (mFirstPassUnknown(Flags)) |
||
| 2230 | AdrInt &= 0x1fe; |
||
| 2231 | if (ChkRange(AdrInt, -0x80000, 0x7ffff)) |
||
| 2232 | { |
||
| 2233 | if (Odd(AdrInt)) WrError(ErrNum_NotAligned); |
||
| 2234 | else |
||
| 2235 | { |
||
| 2236 | WAsmCode[0] = Code + (AdrInt & 0x1fe); |
||
| 2237 | AddSignedPrefix(0, 9, AdrInt, ForcePrefix); |
||
| 2238 | CodeLen = 2; |
||
| 2239 | } |
||
| 2240 | } |
||
| 2241 | } |
||
| 2242 | } |
||
| 2243 | |||
| 2244 | static void DecodeSWI(Word Code) |
||
| 2245 | { |
||
| 2246 | UNUSED(Code); |
||
| 2247 | |||
| 2248 | if (!ChkArgCnt(1, 1)); |
||
| 2249 | else if (*AttrPart.str.p_str) WrError(ErrNum_UseLessAttr); |
||
| 2250 | else |
||
| 2251 | { |
||
| 2252 | Boolean OK; |
||
| 2253 | |||
| 2254 | WAsmCode[0] = EvalStrIntExpression(&ArgStr[1], Int4, &OK) + 0x7f90; |
||
| 2255 | if (OK) |
||
| 2256 | CodeLen = 2; |
||
| 2257 | } |
||
| 2258 | } |
||
| 2259 | |||
| 2260 | static void DecodeLDA(Word Code) |
||
| 2261 | { |
||
| 2262 | UNUSED(Code); |
||
| 2263 | |||
| 2264 | if (ChkArgCnt(2, 2)) |
||
| 2265 | { |
||
| 2266 | DecodeAdr(&ArgStr[2], 0, eImmNo, False); |
||
| 2267 | if (AdrOK) |
||
| 2268 | { |
||
| 2269 | int z; |
||
| 2270 | |||
| 2271 | WAsmCode[0] = 0x3000 + AdrMode; |
||
| 2272 | z = AdrCnt; |
||
| 2273 | memcpy(WAsmCode + 1, AdrVals, z); |
||
| 2274 | DecodeAdr(&ArgStr[1], 1, eImmNo, True); |
||
| 2275 | if (AdrOK) |
||
| 2276 | { |
||
| 2277 | if ((OpSize != 1) && (OpSize != 2)) WrError(ErrNum_InvOpSize); |
||
| 2278 | else |
||
| 2279 | { |
||
| 2280 | WAsmCode[0] += ((Word)OpSize) << 14; |
||
| 2281 | WAsmCode[1 + (z >> 1)] = 0x9700 + AdrMode; |
||
| 2282 | memcpy(WAsmCode + 2 + (z >> 1), AdrVals, AdrCnt); |
||
| 2283 | CodeLen = 4 + z + AdrCnt; |
||
| 2284 | } |
||
| 2285 | } |
||
| 2286 | } |
||
| 2287 | } |
||
| 2288 | } |
||
| 2289 | |||
| 2290 | /*--------------------------------------------------------------------------*/ |
||
| 2291 | |||
| 2292 | static void AddFixed(const char *NName, Word NCode) |
||
| 2293 | { |
||
| 2294 | AddInstTable(InstTable, NName, NCode, DecodeFixed); |
||
| 2295 | } |
||
| 2296 | |||
| 2297 | static void AddRMW(const char *NName, Byte NCode, Byte NMask) |
||
| 2298 | { |
||
| 2299 | order_array_rsv_end(RMWOrders, RMWOrder); |
||
| 2300 | RMWOrders[InstrZ].Mask = NMask; |
||
| 2301 | RMWOrders[InstrZ].Code = NCode; |
||
| 2302 | AddInstTable(InstTable, NName, InstrZ++, DecodeRMW); |
||
| 2303 | } |
||
| 2304 | |||
| 2305 | static void AddGAEq(const char *NName, Word NCode) |
||
| 2306 | { |
||
| 2307 | AddInstTable(InstTable, NName, NCode, DecodeGAEq); |
||
| 2308 | } |
||
| 2309 | |||
| 2310 | static void AddGAHalf(const char *NName, Word NCode) |
||
| 2311 | { |
||
| 2312 | AddInstTable(InstTable, NName, NCode, DecodeGAHalf); |
||
| 2313 | } |
||
| 2314 | |||
| 2315 | static void AddGAFirst(const char *NName, Word NCode) |
||
| 2316 | { |
||
| 2317 | AddInstTable(InstTable, NName, NCode, DecodeGAFirst); |
||
| 2318 | } |
||
| 2319 | |||
| 2320 | static void AddGASecond(const char *NName, Word NCode) |
||
| 2321 | { |
||
| 2322 | AddInstTable(InstTable, NName, NCode, DecodeGASecond); |
||
| 2323 | } |
||
| 2324 | |||
| 2325 | static void InitFields(void) |
||
| 2326 | { |
||
| 2327 | InstTable = CreateInstTable(301); |
||
| 2328 | |||
| 2329 | add_null_pseudo(InstTable); |
||
| 2330 | |||
| 2331 | AddInstTable(InstTable, "RLM", 0x0400, DecodeRLM_RRM); |
||
| 2332 | AddInstTable(InstTable, "RRM", 0x0500, DecodeRLM_RRM); |
||
| 2333 | AddInstTable(InstTable, "CHK", 0, DecodeCHK_CHKS); |
||
| 2334 | AddInstTable(InstTable, "CHKS", 1, DecodeCHK_CHKS); |
||
| 2335 | AddInstTable(InstTable, "EX", 0, DecodeEX); |
||
| 2336 | AddInstTable(InstTable, "CALR", 0x2001, DecodeCALR_JR); |
||
| 2337 | AddInstTable(InstTable, "JR", 0x2000, DecodeCALR_JR); |
||
| 2338 | AddInstTable(InstTable, "JRC", 0, DecodeJRC); |
||
| 2339 | AddInstTable(InstTable, "JRBC", 0x1e00, DecodeJRBC_JRBS); |
||
| 2340 | AddInstTable(InstTable, "JRBS", 0x1e01, DecodeJRBC_JRBS); |
||
| 2341 | AddInstTable(InstTable, "DJNZ", 0, DecodeDJNZ); |
||
| 2342 | AddInstTable(InstTable, "DJNZC", 0, DecodeDJNZC); |
||
| 2343 | AddInstTable(InstTable, "LINK", 0xc001, DecodeLINK_RETD); |
||
| 2344 | AddInstTable(InstTable, "RETD", 0xc801, DecodeLINK_RETD); |
||
| 2345 | AddInstTable(InstTable, "SWI", 0, DecodeSWI); |
||
| 2346 | AddInstTable(InstTable, "LDA", 0, DecodeLDA); |
||
| 2347 | AddInstTable(InstTable, "REG", 0, CodeREG); |
||
| 2348 | |||
| 2349 | AddFixed("CCF" , 0x7f82); |
||
| 2350 | AddFixed("CSF" , 0x7f8a); |
||
| 2351 | AddFixed("CVF" , 0x7f86); |
||
| 2352 | AddFixed("CZF" , 0x7f8e); |
||
| 2353 | AddFixed("DI" , 0x7fa1); |
||
| 2354 | AddFixed("EI" , 0x7fa3); |
||
| 2355 | AddFixed("HALT", 0x7fa5); |
||
| 2356 | AddFixed("NOP" , 0x7fa0); |
||
| 2357 | AddFixed("RCF" , 0x7f80); |
||
| 2358 | AddFixed("RET" , 0x7fa4); |
||
| 2359 | AddFixed("RETI", 0x7fa9); |
||
| 2360 | AddFixed("RETS", 0x7fab); |
||
| 2361 | AddFixed("RSF" , 0x7f88); |
||
| 2362 | AddFixed("RVF" , 0x7f84); |
||
| 2363 | AddFixed("RZF" , 0x7f8c); |
||
| 2364 | AddFixed("SCF" , 0x7f81); |
||
| 2365 | AddFixed("SSF" , 0x7f89); |
||
| 2366 | AddFixed("SVF" , 0x7f85); |
||
| 2367 | AddFixed("SZF" , 0x7f8b); |
||
| 2368 | AddFixed("UNLK", 0x7fa2); |
||
| 2369 | |||
| 2370 | InstrZ = 0; |
||
| 2371 | AddRMW("CALL" , 0x35, 0x36); |
||
| 2372 | AddRMW("CLR" , 0x2b, 0x17); |
||
| 2373 | AddRMW("CPL" , 0x28, 0x17); |
||
| 2374 | AddRMW("EXTS" , 0x33, 0x16); |
||
| 2375 | AddRMW("EXTZ" , 0x32, 0x16); |
||
| 2376 | AddRMW("JP" , 0x34, 0x36); |
||
| 2377 | AddRMW("MIRR" , 0x23, 0x17); |
||
| 2378 | AddRMW("NEG" , 0x29, 0x17); |
||
| 2379 | AddRMW("POP" , 0x20, 0x17); |
||
| 2380 | AddRMW("PUSH" , 0x21, 0x07); |
||
| 2381 | AddRMW("PUSHA", 0x31, 0x36); |
||
| 2382 | AddRMW("RVBY" , 0x22, 0x17); |
||
| 2383 | AddRMW("TJP" , 0x36, 0x16); |
||
| 2384 | AddRMW("TST" , 0x2a, 0x17); |
||
| 2385 | |||
| 2386 | InstrZ = 0; |
||
| 2387 | AddInstTable(InstTable, "ADD", InstrZ++, DecodeGASI1); |
||
| 2388 | AddInstTable(InstTable, "SUB", InstrZ++, DecodeGASI1); |
||
| 2389 | AddInstTable(InstTable, "CP" , InstrZ++, DecodeGASI1); |
||
| 2390 | AddInstTable(InstTable, "LD" , InstrZ++, DecodeGASI1); |
||
| 2391 | |||
| 2392 | InstrZ = 0; |
||
| 2393 | AddInstTable(InstTable, "AND", InstrZ++, DecodeGASI2); |
||
| 2394 | AddInstTable(InstTable, "OR" , InstrZ++, DecodeGASI2); |
||
| 2395 | AddInstTable(InstTable, "XOR", InstrZ++, DecodeGASI2); |
||
| 2396 | |||
| 2397 | InstrZ = 0; |
||
| 2398 | AddInstTable(InstTable, "ADD3", InstrZ++, DecodeTrinom); |
||
| 2399 | AddInstTable(InstTable, "SUB3", InstrZ++, DecodeTrinom); |
||
| 2400 | AddInstTable(InstTable, "MAC" , InstrZ++, DecodeTrinom); |
||
| 2401 | AddInstTable(InstTable, "MACS", InstrZ++, DecodeTrinom); |
||
| 2402 | |||
| 2403 | InstrZ = 0; |
||
| 2404 | AddInstTable(InstTable, "BRES", InstrZ++, DecodeBit); |
||
| 2405 | AddInstTable(InstTable, "BSET", InstrZ++, DecodeBit); |
||
| 2406 | AddInstTable(InstTable, "BCHG", InstrZ++, DecodeBit); |
||
| 2407 | AddInstTable(InstTable, "BTST", InstrZ++, DecodeBit); |
||
| 2408 | |||
| 2409 | InstrZ = 0; |
||
| 2410 | AddInstTable(InstTable, "SLL", InstrZ++, DecodeShift); |
||
| 2411 | AddInstTable(InstTable, "SRL", InstrZ++, DecodeShift); |
||
| 2412 | AddInstTable(InstTable, "SLA", InstrZ++, DecodeShift); |
||
| 2413 | AddInstTable(InstTable, "SRA", InstrZ++, DecodeShift); |
||
| 2414 | AddInstTable(InstTable, "RL" , InstrZ++, DecodeShift); |
||
| 2415 | AddInstTable(InstTable, "RR" , InstrZ++, DecodeShift); |
||
| 2416 | AddInstTable(InstTable, "RLC", InstrZ++, DecodeShift); |
||
| 2417 | AddInstTable(InstTable, "RRC", InstrZ++, DecodeShift); |
||
| 2418 | |||
| 2419 | InstrZ = 0; |
||
| 2420 | AddInstTable(InstTable, "BFEX" , InstrZ++, DecodeBField); |
||
| 2421 | AddInstTable(InstTable, "BFEXS", InstrZ++, DecodeBField); |
||
| 2422 | AddInstTable(InstTable, "BFIN" , InstrZ++, DecodeBField); |
||
| 2423 | |||
| 2424 | AddGAEq("ABCD" , 0x0110); |
||
| 2425 | AddGAEq("ADC" , 0x0004); |
||
| 2426 | AddGAEq("CBCD" , 0x0112); |
||
| 2427 | AddGAEq("CPC" , 0x0006); |
||
| 2428 | AddGAEq("MAX" , 0x0116); |
||
| 2429 | AddGAEq("MAXS" , 0x0017); |
||
| 2430 | AddGAEq("MIN" , 0x0114); |
||
| 2431 | AddGAEq("MINS" , 0x0015); |
||
| 2432 | AddGAEq("SBC" , 0x0105); |
||
| 2433 | AddGAEq("SBCD" , 0x0111); |
||
| 2434 | |||
| 2435 | AddGAHalf("DIV" , 0x26); |
||
| 2436 | AddGAHalf("DIVS" , 0x27); |
||
| 2437 | AddGAHalf("MUL" , 0x24); |
||
| 2438 | AddGAHalf("MULS" , 0x25); |
||
| 2439 | |||
| 2440 | AddGAFirst("ANDCF", 0x44); |
||
| 2441 | AddGAFirst("LDCF" , 0x47); |
||
| 2442 | AddGAFirst("ORCF" , 0x45); |
||
| 2443 | AddGAFirst("STCF" , 0x43); |
||
| 2444 | AddGAFirst("TSET" , 0x70); |
||
| 2445 | AddGAFirst("XORCF", 0x46); |
||
| 2446 | |||
| 2447 | AddGASecond("BS0B" , 0x54); |
||
| 2448 | AddGASecond("BS0F" , 0x55); |
||
| 2449 | AddGASecond("BS1B" , 0x56); |
||
| 2450 | AddGASecond("BS1F" , 0x57); |
||
| 2451 | |||
| 2452 | AddInstTable(InstTable, "CPSZ", 0, DecodeString); |
||
| 2453 | AddInstTable(InstTable, "CPSN", 1, DecodeString); |
||
| 2454 | AddInstTable(InstTable, "LDS" , 3, DecodeString); |
||
| 2455 | |||
| 2456 | AddIntelPseudo(InstTable, eIntPseudoFlag_LittleEndian); |
||
| 2457 | } |
||
| 2458 | |||
| 2459 | static void DeinitFields(void) |
||
| 2460 | { |
||
| 2461 | DestroyInstTable(InstTable); |
||
| 2462 | |||
| 2463 | order_array_free(RMWOrders); |
||
| 2464 | } |
||
| 2465 | |||
| 2466 | static Boolean DecodeAttrPart_97C241(void) |
||
| 2467 | { |
||
| 2468 | char *p; |
||
| 2469 | |||
| 2470 | switch (AttrSplit) |
||
| 2471 | { |
||
| 2472 | case '.': |
||
| 2473 | p = strchr(AttrPart.str.p_str, ':'); |
||
| 2474 | if (p) |
||
| 2475 | { |
||
| 2476 | Format = (p < AttrPart.str.p_str + strlen(AttrPart.str.p_str) - 1) ? p[1] : ' '; |
||
| 2477 | *p = '\0'; |
||
| 2478 | } |
||
| 2479 | else |
||
| 2480 | Format = ' '; |
||
| 2481 | break; |
||
| 2482 | case ':': |
||
| 2483 | p = strchr(AttrPart.str.p_str, '.'); |
||
| 2484 | if (!p) |
||
| 2485 | { |
||
| 2486 | Format = (*AttrPart.str.p_str); |
||
| 2487 | *AttrPart.str.p_str = '\0'; |
||
| 2488 | } |
||
| 2489 | else |
||
| 2490 | { |
||
| 2491 | Format = (p == AttrPart.str.p_str) ? ' ' : *AttrPart.str.p_str; |
||
| 2492 | strmov(AttrPart.str.p_str, p + 1); |
||
| 2493 | } |
||
| 2494 | break; |
||
| 2495 | default: |
||
| 2496 | Format = ' '; |
||
| 2497 | } |
||
| 2498 | Format = as_toupper(Format); |
||
| 2499 | |||
| 2500 | if (*AttrPart.str.p_str) |
||
| 2501 | switch (as_toupper(*AttrPart.str.p_str)) |
||
| 2502 | { |
||
| 2503 | case 'B': |
||
| 2504 | AttrPartOpSize[0] = eSymbolSize8Bit; |
||
| 2505 | break; |
||
| 2506 | case 'W': |
||
| 2507 | AttrPartOpSize[0] = eSymbolSize16Bit; |
||
| 2508 | break; |
||
| 2509 | case 'D': |
||
| 2510 | AttrPartOpSize[0] = eSymbolSize32Bit; |
||
| 2511 | break; |
||
| 2512 | default: |
||
| 2513 | WrStrErrorPos(ErrNum_UndefAttr, &AttrPart); |
||
| 2514 | return False; |
||
| 2515 | } |
||
| 2516 | return True; |
||
| 2517 | } |
||
| 2518 | |||
| 2519 | static void MakeCode_97C241(void) |
||
| 2520 | { |
||
| 2521 | PrefUsed[0] = False; |
||
| 2522 | PrefUsed[1] = False; |
||
| 2523 | AdrInc = 0; |
||
| 2524 | MinOneIs0 = False; |
||
| 2525 | LowLim4 = -8; LowLim8 = -128; |
||
| 2526 | |||
| 2527 | OpSize = AttrPartOpSize[0]; |
||
| 2528 | |||
| 2529 | if (LookupInstTable(InstTable, OpPart.str.p_str)) |
||
| 2530 | { |
||
| 2531 | AddPrefixes(); |
||
| 2532 | return; |
||
| 2533 | } |
||
| 2534 | |||
| 2535 | WrStrErrorPos(ErrNum_UnknownInstruction, &OpPart); |
||
| 2536 | } |
||
| 2537 | |||
| 2538 | /*!------------------------------------------------------------------------ |
||
| 2539 | * \fn InternSymbol_97C241(char *pArg, TempResult *pResult) |
||
| 2540 | * \brief handle built-in symbols on TLCS-9000 |
||
| 2541 | * \param pArg source argument |
||
| 2542 | * \param pResult result buffer |
||
| 2543 | * ------------------------------------------------------------------------ */ |
||
| 2544 | |||
| 2545 | static void InternSymbol_97C241(char *pArg, TempResult *pResult) |
||
| 2546 | { |
||
| 2547 | Byte Reg; |
||
| 2548 | tSymbolSize Size; |
||
| 2549 | |||
| 2550 | if (DecodeRegCore(pArg, &Reg, &Size)) |
||
| 2551 | { |
||
| 2552 | pResult->Typ = TempReg; |
||
| 2553 | pResult->DataSize = Size; |
||
| 2554 | pResult->Contents.RegDescr.Reg = Reg; |
||
| 2555 | pResult->Contents.RegDescr.Dissect = DissectReg_97C241; |
||
| 2556 | pResult->Contents.RegDescr.compare = NULL; |
||
| 2557 | } |
||
| 2558 | } |
||
| 2559 | |||
| 2560 | static Boolean IsDef_97C241(void) |
||
| 2561 | { |
||
| 2562 | return Memo("REG"); |
||
| 2563 | } |
||
| 2564 | |||
| 2565 | static void SwitchFrom_97C241(void) |
||
| 2566 | { |
||
| 2567 | DeinitFields(); |
||
| 2568 | } |
||
| 2569 | |||
| 2570 | static void SwitchTo_97C241(void) |
||
| 2571 | { |
||
| 2572 | TurnWords = False; |
||
| 2573 | SetIntConstMode(eIntConstModeIntel); |
||
| 2574 | |||
| 2575 | PCSymbol = "$"; |
||
| 2576 | HeaderID = 0x56; |
||
| 2577 | NOPCode = 0x7fa0; |
||
| 2578 | DivideChars = ","; |
||
| 2579 | HasAttrs = True; |
||
| 2580 | AttrChars = ".:"; |
||
| 2581 | |||
| 2582 | ValidSegs = 1 << SegCode; |
||
| 2583 | Grans[SegCode] = 1; |
||
| 2584 | ListGrans[SegCode] = 2; |
||
| 2585 | SegInits[SegCode] = 0; |
||
| 2586 | SegLimits[SegCode] = 0xffffffl; |
||
| 2587 | |||
| 2588 | DecodeAttrPart = DecodeAttrPart_97C241; |
||
| 2589 | MakeCode = MakeCode_97C241; |
||
| 2590 | IsDef = IsDef_97C241; |
||
| 2591 | InternSymbol = InternSymbol_97C241; |
||
| 2592 | DissectReg = DissectReg_97C241; |
||
| 2593 | SwitchFrom = SwitchFrom_97C241; |
||
| 2594 | InitFields(); |
||
| 2595 | } |
||
| 2596 | |||
| 2597 | void code97c241_init(void) |
||
| 2598 | { |
||
| 2599 | CPU97C241 = AddCPU("97C241", SwitchTo_97C241); |
||
| 2600 | } |