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annotate lwasm/insn_indexed.c @ 577:e49d24f4a9a5

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Correct bug in the object file output code leading to stack corruption It turns out leaving a pointer to a stack allocated temporary in a persistent data structure is not conducive to correct program operation. Undo the export check setup in the object file output sequence so a pointer to stack allocated memory is not left hanging when the function returns. This seems to correct at least one mysterious crash bug, and possibly others. Thanks to Boisy Pitre for reporting the crash bug that led to this discovery, as well as a previous crash bug that likely has the same root cause. Additional thanks to Ciaran Anscomb whose debugger wielding wizardry revealed the exact location of this particular bit of unbrilliance.
author William Astle <lost@l-w.ca>
date Sat, 03 Aug 2024 14:30:06 -0600
parents 62720ac9e28d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /*
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2 insn_indexed.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWASM.
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6
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7 LWASM is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19 */
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20
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21 /*
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22 for handling indexed mode instructions
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23 */
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24
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25 #include <ctype.h>
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26 #include <string.h>
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27
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28 #include <lw_expr.h>
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29
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30 #include "lwasm.h"
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31 #include "instab.h"
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32
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33 /*
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34 l -> lint: size of operand (0, 1, 2, -1 if not determined)
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35 l -> pb: actual post byte (from "resolve" stage) or info passed
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36 forward to the resolve stage (if l -> line is -1); 0x80 is indir
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37 bits 0-2 are register number
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38 */
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39 void insn_parse_indexed_aux(asmstate_t *as, line_t *l, char **p)
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40 {
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41 static const char *regs9 = "X Y U S PCRPC ";
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42 static const char *regs = "X Y U S W PCRPC ";
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43 int i, rn;
0
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44 int indir = 0;
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45 int f0 = 0;
0
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46 const char *reglist;
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47 lw_expr_t e;
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48 char *tstr;
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49
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50
367
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51 if (CURPRAGMA(l, PRAGMA_6809))
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52 {
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53 reglist = regs9;
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54 }
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55 else
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56 {
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57 reglist = regs;
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58 }
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59 // is it indirect?
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60 if (**p == '[')
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61 {
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62 indir = 1;
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63 (*p)++;
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64 }
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65 lwasm_skip_to_next_token(l, p);
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66 if (**p == ',')
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67 {
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68 int incdec = 0;
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69 /* we have a pre-dec, post-inc, or no offset mode here */
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70 (*p)++;
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71 lwasm_skip_to_next_token(l, p);
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72 if (**p == '-')
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73 {
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74 incdec = -1;
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75 (*p)++;
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76 if (**p == '-')
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77 {
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78 incdec = -2;
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79 (*p)++;
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80 }
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81 lwasm_skip_to_next_token(l, p);
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82 }
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83 /* allowed registers: X, Y, U, S, or W (6309) */
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84 switch (**p)
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85 {
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86 case 'x':
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87 case 'X':
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88 rn = 0;
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89 break;
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90
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91 case 'y':
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92 case 'Y':
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93 rn = 1;
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94 break;
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95
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96 case 'u':
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97 case 'U':
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98 rn = 2;
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99 break;
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100
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101 case 's':
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102 case 'S':
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103 rn = 3;
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104 break;
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105
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106 case 'w':
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107 case 'W':
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108 if (CURPRAGMA(l, PRAGMA_6809))
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109 {
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110 lwasm_register_error(as, l, E_OPERAND_BAD);
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111 return;
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112 }
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113 rn = 4;
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114 break;
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115
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116 default:
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117 lwasm_register_error(as, l, E_OPERAND_BAD);
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118 return;
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119 }
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120 (*p)++;
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121 lwasm_skip_to_next_token(l, p);
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122 if (**p == '+')
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123 {
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124 if (incdec != 0)
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125 {
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126 lwasm_register_error(as, l, E_OPERAND_BAD);
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127 return;
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128 }
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129 incdec = 1;
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130 (*p)++;
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131 if (**p == '+')
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132 {
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133 incdec = 2;
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134 (*p)++;
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135 }
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136 lwasm_skip_to_next_token(l, p);
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137 }
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138 if (indir)
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139 {
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parents: 376
diff changeset
140 if (**p != ']')
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
141 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
142 lwasm_register_error(as, l, E_OPERAND_BAD);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
143 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
144 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
145 (*p)++;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
146 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
147 if (indir || rn == 4)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
148 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
149 if (incdec == 1 || incdec == -1)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
150 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
151 lwasm_register_error(as, l, E_OPERAND_BAD);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
152 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
153 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
154 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
155 if (rn == 4)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
156 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
157 if (indir)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
158 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
159 if (incdec == 0)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
160 i = 0x90;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
161 else if (incdec == -2)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
162 i = 0xF0;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
163 else
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
164 i = 0xD0;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
165 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
166 else
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
167 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
168 if (incdec == 0)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
169 i = 0x8F;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
170 else if (incdec == -2)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
171 i = 0xEF;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
172 else
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
173 i = 0xCF;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
174 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
175 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
176 else
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
177 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
178 switch (incdec)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
179 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
180 case 0:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
181 i = 0x84;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
182 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
183 case 1:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
184 i = 0x80;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
185 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
186 case 2:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
187 i = 0x81;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
188 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
189 case -1:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
190 i = 0x82;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
191 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
192 case -2:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
193 i = 0x83;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
194 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
195 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
196 i = (rn << 5) | i | (indir << 4);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
197 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
198 l -> pb = i;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
199 l -> lint = 0;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
200 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
201 }
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
202 i = toupper(**p);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
203 if (
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
204 (i == 'A' || i == 'B' || i == 'D') ||
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
205 (!CURPRAGMA(l, PRAGMA_6809) && (i == 'E' || i == 'F' || i == 'W'))
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
206 )
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
207 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
208 tstr = *p + 1;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
209 lwasm_skip_to_next_token(l, &tstr);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
210 if (*tstr == ',')
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
211 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
212 *p = tstr + 1;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
213 lwasm_skip_to_next_token(l, p);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
214 switch (**p)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
215 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
216 case 'x':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
217 case 'X':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
218 rn = 0;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
219 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
220
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
221 case 'y':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
222 case 'Y':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
223 rn = 1;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
224 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
225
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
226 case 'u':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
227 case 'U':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
228 rn = 2;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
229 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
230
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
231 case 's':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
232 case 'S':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
233 rn = 3;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
234 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
235
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
236 default:
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
237 lwasm_register_error(as, l, E_OPERAND_BAD);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
238 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
239 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
240 (*p)++;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
241 lwasm_skip_to_next_token(l, p);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
242 if (indir)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
243 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
244 if (**p != ']')
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
245 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
246 lwasm_register_error(as, l, E_OPERAND_BAD);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
247 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
248 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
249 (*p)++;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
250 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
251
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
252 switch (i)
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
253 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
254 case 'A':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
255 i = 0x86;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
256 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
257
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
258 case 'B':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
259 i = 0x85;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
260 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
261
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
262 case 'D':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
263 i = 0x8B;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
264 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
265
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
266 case 'E':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
267 i = 0x87;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
268 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
269
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
270 case 'F':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
271 i = 0x8A;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
272 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
273
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
274 case 'W':
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
275 i = 0x8E;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
276 break;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
277 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
278 l -> pb = i | (indir << 4) | (rn << 5);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
279 l -> lint = 0;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
280 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
281 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
282 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
283
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
284 /* we have the "expression" types now */
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
285 if (**p == '<')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
286 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
287 l -> lint = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
288 (*p)++;
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
289 if (**p == '<')
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
290 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
291 l -> lint = 3;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
292 (*p)++;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
293 if (indir)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
294 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
295 lwasm_register_error(as, l, E_ILL5);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
296 return;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
297 }
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
298 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
299 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
300 else if (**p == '>')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
301 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
302 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
303 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
304 }
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
305 lwasm_skip_to_next_token(l, p);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
306 if (**p == '0')
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
307 {
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
308 tstr = *p + 1;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
309 lwasm_skip_to_next_token(l, &tstr);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
310 if (*tstr == ',')
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
311 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
312 f0 = 1;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
313 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
314 }
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
315
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
316 // now we have to evaluate the expression
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
317 e = lwasm_parse_expr(as, p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
318 if (!e)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
319 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
320 lwasm_register_error(as, l, E_OPERAND_BAD);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
321 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
322 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
323 lwasm_save_expr(l, 0, e);
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
324
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
325 if (**p != ',')
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
326 {
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
327 /* if no comma, we have extended indirect */
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
328 if (l -> lint == 1 || **p != ']')
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
329 {
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
330 lwasm_register_error(as, l, E_OPERAND_BAD);
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
331 return;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
332 }
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
333 (*p)++;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
334 l -> lint = 2;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
335 l -> pb = 0x9F;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
336 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
337 }
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
338 (*p)++;
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
339 lwasm_skip_to_next_token(l, p);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
340 // now get the register
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
341 rn = lwasm_lookupreg3(reglist, p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
342 if (rn < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
343 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
344 lwasm_register_error(as, l, E_REGISTER_BAD);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
345 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
346 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
347
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
348 if (indir)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
349 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
350 if (**p != ']')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
351 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
352 lwasm_register_error(as, l, E_OPERAND_BAD);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
353 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
354 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
355 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
356 (*p)++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
357 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
358
130
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
359 if (rn <= 3)
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
360 {
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
361 // X,Y,U,S
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
362 if (l -> lint == 1)
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
363 {
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
364 l -> pb = 0x88 | (rn << 5) | (indir ? 0x10 : 0);
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
365 return;
130
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
366 }
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
367 else if (l -> lint == 2)
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
368 {
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
369 l -> pb = 0x89 | (rn << 5) | (indir ? 0x10 : 0);
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
370 return;
130
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
371 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
372 else if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
373 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
374 l -> pb = (rn << 5);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
375 }
130
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
376 }
50d86baf4ea2 Fixed code generation bug with forced-size offsets from X,Y,U,S
lost@l-w.ca
parents: 129
diff changeset
377
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
378 // nnnn,W is only 16 bit (or 0 bit)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
379 if (rn == 4)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
380 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
381 if (l -> lint == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
382 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
383 lwasm_register_error(as, l, E_NW_8);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
384 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
385 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
386 else if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
387 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
388 lwasm_register_error(as, l, E_ILL5);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
389 return;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
390 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
391
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
392 if (l -> lint == 2)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
393 {
138
57c0210d578c Fix error with postbyte for constant offset from W modes
lost@l-w.ca
parents: 131
diff changeset
394 l -> pb = indir ? 0xb0 : 0xaf;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
395 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
396 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
397 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
398
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
399 l -> pb = (0x80 * indir) | rn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
400
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
401 /* [,w] and ,w
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
402 if (indir)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
403 *b1 = 0x90;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
404 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
405 *b1 = 0x8f;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
406 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
407 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
408 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
409
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
410 // PCR? then we have PC relative addressing (like B??, LB??)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
411 if (rn == 5 || (rn == 6 && CURPRAGMA(l, PRAGMA_PCASPCR)))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
412 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
413 lw_expr_t e1, e2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
414 // external references are handled exactly the same as for
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
415 // relative addressing modes
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
416 // on pass 1, adjust the expression for a subtraction of the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
417 // current address
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
418 // e - (addr + linelen) => e - addr - linelen
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
419
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
420 e2 = lw_expr_build(lw_expr_type_special, lwasm_expr_linelen, l);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
421 e1 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_minus, e, e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
422 lw_expr_destroy(e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
423 e2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_minus, e1, l -> addr);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
424 lw_expr_destroy(e1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
425 lwasm_save_expr(l, 0, e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
426 if (l -> lint == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
427 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
428 l -> pb = indir ? 0x9C : 0x8C;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
429 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
430 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
431 else if (l -> lint == 2)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
432 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
433 l -> pb = indir ? 0x9D : 0x8D;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
434 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
435 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
436 else if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
437 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
438 lwasm_register_error(as, l, E_ILL5);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
439 return;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
440 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
441 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
442
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
443 if (rn == 6)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
444 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
445 if (l -> lint == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
446 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
447 l -> pb = indir ? 0x9C : 0x8C;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
448 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
449 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
450 else if (l -> lint == 2)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
451 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
452 l -> pb = indir ? 0x9D : 0x8D;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
453 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
454 }
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
455 else if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
456 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
457 lwasm_register_error(as, l, E_ILL5);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
458 return;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
459 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
460 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
461
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
462 if (l -> lint != 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
463 l -> pb = (indir * 0x80) | rn | (f0 * 0x40);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
464 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
465
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
466 PARSEFUNC(insn_parse_indexed)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
467 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
468 l -> lint = -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
469 insn_parse_indexed_aux(as, l, p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
470
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
471 if (l -> lint != -1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
472 {
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
473 if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
474 l -> len = OPLEN(instab[l -> insn].ops[0]) + 1;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
475 else
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
476 l -> len = OPLEN(instab[l -> insn].ops[0]) + l -> lint + 1;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
477 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
478 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
479
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
480 void insn_resolve_indexed_aux(asmstate_t *as, line_t *l, int force, int elen)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
481 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
482 // here, we have an expression which needs to be
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
483 // resolved; the post byte is determined here as well
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
lost@l-w.ca
parents: 0
diff changeset
484 lw_expr_t e, e2;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
485 int pb = -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
486 int v;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
487
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
488 if (l -> len != -1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
489 return;
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
490
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
491 e = lwasm_fetch_expr(l, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
492 if (!lw_expr_istype(e, lw_expr_type_int))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
493 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
494 // temporarily set the instruction length to see if we get a
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
495 // constant for our expression; if so, we can select an instruction
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
496 // size
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
497 e2 = lw_expr_copy(e);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
498 // magic 2 for 8 bit (post byte + offset)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
499 l -> len = OPLEN(instab[l -> insn].ops[0]) + elen + 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
500 lwasm_reduce_expr(as, e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
501 // l -> len += 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
502 // e3 = lw_expr_copy(e);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
503 // lwasm_reduce_expr(as, e3);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
504 l -> len = -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
505 if (lw_expr_istype(e2, lw_expr_type_int))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
506 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
507 v = lw_expr_intval(e2);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
508 // we have a reducible expression here which depends on
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
509 // the size of this instruction
109
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
510 if (v == 0 && !CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) && (l -> pb & 0x07) <= 4)
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
511 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
512 if ((l -> pb & 0x07) < 4)
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
513 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
514 pb = 0x84 | ((l -> pb & 0x03) << 5) | ((l -> pb & 0x80) ? 0x10 : 0);
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
515 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
516 else
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
517 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
518 pb = (l -> pb & 0x80) ? 0x90 : 0x8F;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
519 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
520 l -> pb = pb;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
521 lw_expr_destroy(e2);
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
522 l -> lint = 0;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
523 return;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
524 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
525 else if (v < -128 || v > 127)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
526 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
527 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
528 switch (l -> pb & 0x07)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
529 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
530 case 0:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
531 case 1:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
532 case 2:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
533 case 3:
45
c42d6dc7df68 Fixed code generation error with indirect indexing using 8 or 16 bit offsets from X,Y,U,S
lost@l-w.ca
parents: 2
diff changeset
534 pb = 0x89 | ((l -> pb & 0x03) << 5) | ((l -> pb & 0x80) ? 0x10 : 0);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
535 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
536
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
537 case 4: // W
138
57c0210d578c Fix error with postbyte for constant offset from W modes
lost@l-w.ca
parents: 131
diff changeset
538 pb = (l -> pb & 0x80) ? 0xB0 : 0xAF;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
539 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
540
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
541 case 5: // PCR
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
542 case 6: // PC
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
543 pb = (l -> pb & 0x80) ? 0x9D : 0x8D;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
544 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
545 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
546
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
547 l -> pb = pb;
91
95181f1ad183 Really fix memory leaks
lost@l-w.ca
parents: 90
diff changeset
548 lw_expr_destroy(e2);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
549 // lw_expr_destroy(e3);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
550 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
551 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
552 else if ((l -> pb & 0x80) || ((l -> pb & 0x07) > 3) || v < -16 || v > 15)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
553 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
554 // if not a 5 bit value, is indirect, or is not X,Y,U,S
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
555 l -> lint = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
556 switch (l -> pb & 0x07)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
557 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
558 case 0:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
559 case 1:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
560 case 2:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
561 case 3:
45
c42d6dc7df68 Fixed code generation error with indirect indexing using 8 or 16 bit offsets from X,Y,U,S
lost@l-w.ca
parents: 2
diff changeset
562 pb = 0x88 | ((l -> pb & 0x03) << 5) | ((l -> pb & 0x80) ? 0x10 : 0);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
563 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
564
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
565 case 4: // W
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
566 // use 16 bit because W doesn't have 8 bit, unless 0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
567 if (v == 0 && !(CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) || l -> pb & 0x40))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
568 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
569 pb = (l -> pb & 0x80) ? 0x90 : 0x8F;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
570 l -> lint = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
571 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
572 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
573 {
138
57c0210d578c Fix error with postbyte for constant offset from W modes
lost@l-w.ca
parents: 131
diff changeset
574 pb = (l -> pb & 0x80) ? 0xB0 : 0xAF;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
575 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
576 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
577 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
578
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
579 case 5: // PCR
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
580 case 6: // PC
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
581 pb = (l -> pb & 0x80) ? 0x9C : 0x8C;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
582 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
583 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
584
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
585 l -> pb = pb;
91
95181f1ad183 Really fix memory leaks
lost@l-w.ca
parents: 90
diff changeset
586 lw_expr_destroy(e2);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
587 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
588 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
589 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
590 {
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
591 // we have X,Y,U,S and a possible 5 bit here
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
592 l -> lint = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
593
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
594 if (v == 0 && !(CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) || l -> pb & 0x40))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
595 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
596 pb = (l -> pb & 0x03) << 5 | 0x84;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
597 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
598 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
599 {
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
600 pb = ((l -> pb & 0x03) << 5) | (v & 0x1F);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
601 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
602 l -> pb = pb;
91
95181f1ad183 Really fix memory leaks
lost@l-w.ca
parents: 90
diff changeset
603 lw_expr_destroy(e2);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
604 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
605 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
606 }
464
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
607 else
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
608 {
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
609 if ((l -> pb & 0x07) == 5 || (l -> pb & 0x07) == 6)
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
610 {
465
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
611 // NOTE: this will break in some particularly obscure corner cases
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
612 // which are not likely to show up in normal code. Notably, if, for
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
613 // some reason, the target gets *farther* away if shorter addressing
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
614 // modes are chosen, which should only happen if the symbol is before
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
615 // the instruction in the source file and there is some sort of ORG
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
616 // statement or similar in between which forces the address of this
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
617 // instruction, and the differences happen to cross the 8 bit boundary.
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
618 // For this reason, we use a heuristic and allow a margin on the 8
7370a67caf7e Fix really dumb code generation error
William Astle <lost@l-w.ca>
parents: 464
diff changeset
619 // bit boundary conditions.
464
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
620 v = as -> pretendmax;
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
621 as -> pretendmax = 1;
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
622 lwasm_reduce_expr(as, e2);
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
623 as -> pretendmax = v;
466
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
624 if (lw_expr_istype(e2, lw_expr_type_int))
464
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
625 {
466
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
626 v = lw_expr_intval(e2);
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
627 // Actual range is -128 <= offset <= 127; we're allowing a fudge
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
628 // factor of 25 or so bytes so that we're less likely to accidentally
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
629 // cross into the 16 bit boundary in weird corner cases.
469
9393a6b8886c Fix PCR size guessing
William Astle <lost@l-w.ca>
parents: 466
diff changeset
630 if (v >= -100 && v <= 100)
466
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
631 {
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
632 l -> lint = 1;
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
633 l -> pb = (l -> pb & 0x80) ? 0x9C : 0x8C;
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
634 return;
51bed8c8dc53 Actually check if we resolved a PCR reference before assuming 8 bits
William Astle <lost@l-w.ca>
parents: 465
diff changeset
635 }
464
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
636 }
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
637 }
9134f6426c57 Fix think-o in PCR optimization fix from previous commit
William Astle <lost@l-w.ca>
parents: 463
diff changeset
638 }
91
95181f1ad183 Really fix memory leaks
lost@l-w.ca
parents: 90
diff changeset
639 lw_expr_destroy(e2);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
640 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
641
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
642 if (lw_expr_istype(e, lw_expr_type_int))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
643 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
644 // we know how big it is
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
645 v = lw_expr_intval(e);
402
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
646
b20f14edda5a Completed initial conversion to new parser allowing spaces in operands
William Astle <lost@l-w.ca>
parents: 376
diff changeset
647 if (v == 0 && !CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) && (l -> pb & 0x07) <= 4 && ((l -> pb & 0x40) == 0))
109
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
648 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
649 if ((l -> pb & 0x07) < 4)
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
650 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
651 pb = 0x84 | ((l -> pb & 0x03) << 5) | ((l -> pb & 0x80) ? 0x10 : 0);
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
652 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
653 else
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
654 {
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
655 pb = (l -> pb & 0x80) ? 0x90 : 0x8F;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
656 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
657 l -> pb = pb;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
658 l -> lint = 0;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
659 return;
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
660 }
6a919c3ca0e9 Fixed pragma noindex0tonone to work
lost@l-w.ca
parents: 91
diff changeset
661 else if (v < -128 || v > 127)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
662 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
663 do16bit:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
664 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
665 switch (l -> pb & 0x07)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
666 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
667 case 0:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
668 case 1:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
669 case 2:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
670 case 3:
45
c42d6dc7df68 Fixed code generation error with indirect indexing using 8 or 16 bit offsets from X,Y,U,S
lost@l-w.ca
parents: 2
diff changeset
671 pb = 0x89 | (l -> pb & 0x03) << 5 | ((l -> pb & 0x80) ? 0x10 : 0);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
672 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
673
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
674 case 4: // W
138
57c0210d578c Fix error with postbyte for constant offset from W modes
lost@l-w.ca
parents: 131
diff changeset
675 pb = (l -> pb & 0x80) ? 0xB0 : 0xAF;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
676 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
677
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
678 case 5: // PCR
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
679 case 6: // PC
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
680 pb = (l -> pb & 0x80) ? 0x9D : 0x8D;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
681 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
682 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
683
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
684 l -> pb = pb;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
685 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
686 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
687 else if ((l -> pb & 0x80) || ((l -> pb & 0x07) > 3) || v < -16 || v > 15)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
688 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
689 // if not a 5 bit value, is indirect, or is not X,Y,U,S
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
690 l -> lint = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
691 switch (l -> pb & 0x07)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
692 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
693 case 0:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
694 case 1:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
695 case 2:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
696 case 3:
45
c42d6dc7df68 Fixed code generation error with indirect indexing using 8 or 16 bit offsets from X,Y,U,S
lost@l-w.ca
parents: 2
diff changeset
697 pb = 0x88 | (l -> pb & 0x03) << 5 | ((l -> pb & 0x80) ? 0x10 : 0);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
698 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
699
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
700 case 4: // W
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
701 // use 16 bit because W doesn't have 8 bit, unless 0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
702 if (v == 0 && !(CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) || l -> pb & 0x40))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
703 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
704 pb = (l -> pb & 0x80) ? 0x90 : 0x8F;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
705 l -> lint = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
706 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
707 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
708 {
138
57c0210d578c Fix error with postbyte for constant offset from W modes
lost@l-w.ca
parents: 131
diff changeset
709 pb = (l -> pb & 0x80) ? 0xB0 : 0xAF;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
710 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
711 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
712 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
713
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
714 case 5: // PCR
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
715 case 6: // PC
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
716 pb = (l -> pb & 0x80) ? 0x9C : 0x8C;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
717 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
718 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
719
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
720 l -> pb = pb;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
721 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
722 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
723 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
724 {
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
725 // we have X,Y,U,S and a possible 5 bit here
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
726 l -> lint = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
727
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
728 if (v == 0 && !(CURPRAGMA(l, PRAGMA_NOINDEX0TONONE) || l -> pb & 0x40))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
729 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
730 pb = (l -> pb & 0x03) << 5 | 0x84;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
731 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
732 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
733 {
131
f2f3a4b0a25e Fix fix for forced index offset sizes
lost@l-w.ca
parents: 130
diff changeset
734 pb = ((l -> pb & 0x03) << 5) | (v & 0x1F);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
735 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
736 l -> pb = pb;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
737 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
738 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
739 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
740 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
741 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
742 // we don't know how big it is
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
743 if (!force)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
744 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
745 // force 16 bit if we don't know
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
746 l -> lint = 2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
747 goto do16bit;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
748 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
749 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
750
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
751 RESOLVEFUNC(insn_resolve_indexed)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
752 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
753 if (l -> lint == -1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
754 insn_resolve_indexed_aux(as, l, force, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
755
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
756 if (l -> lint != -1 && l -> pb != -1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
757 {
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
758 if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
759 l -> len = OPLEN(instab[l -> insn].ops[0]) + 1;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
760 else
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
761 l -> len = OPLEN(instab[l -> insn].ops[0]) + l -> lint + 1;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
762 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
763 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
764
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
765 void insn_emit_indexed_aux(asmstate_t *as, line_t *l)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
766 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
767 lw_expr_t e;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
768
283
210d261a614d Make byte overflow detection for indexing work better
William Astle <lost@l-w.ca>
parents: 282
diff changeset
769 if (l -> lint == 1)
282
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
770 {
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
771 int i;
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
772 e = lwasm_fetch_expr(l, 0);
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
773 i = lw_expr_intval(e);
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
774 if (i < -128 || i > 127)
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
775 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
776 lwasm_register_error(as, l, E_BYTE_OVERFLOW);
282
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
777 }
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
778 }
3c421f24c9b8 Make <...,PCR complain on byte overflows
William Astle <lost@l-w.ca>
parents: 243
diff changeset
779
458
3948c874901b Make offset,R operand size warning work properly
William Astle <lost@l-w.ca>
parents: 455
diff changeset
780 // exclude expr,W since that can only be 16 bits
470
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
781 if (l -> lint == 3)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
782 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
783 int offs;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
784 e = lwasm_fetch_expr(l, 0);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
785 if (lw_expr_istype(e, lw_expr_type_int))
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
786 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
787 offs = lw_expr_intval(e);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
788 if ((offs >= -16 && offs <= 15) || offs >= 0xFFF0)
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
789 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
790 l -> pb |= offs & 0x1f;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
791 l -> lint = 0;
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
792 }
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
793 else
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
794 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
795 lwasm_register_error(as, l, E_BYTE_OVERFLOW);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
796 }
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
797 }
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
798 else
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
799 {
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
800 lwasm_register_error(as, l, E_EXPRESSION_NOT_RESOLVED);
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
801 }
2c1c5dd84024 Add << prefix to force 5 bit offsets in indexed modes
William Astle <lost@l-w.ca>
parents: 469
diff changeset
802 }
481
62720ac9e28d Exclude extended indirect from operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 470
diff changeset
803 // note that extended indirect (post byte 0x9f) can only be 16 bits
62720ac9e28d Exclude extended indirect from operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 470
diff changeset
804 else if (l -> lint == 2 && CURPRAGMA(l, PRAGMA_OPERANDSIZE) && (l -> pb != 0xAF && l -> pb != 0xB0 && l -> pb != 0x9f))
455
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
805 {
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
806 int offs;
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
807 e = lwasm_fetch_expr(l, 0);
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
808 if (lw_expr_istype(e, lw_expr_type_int))
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
809 {
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
810 offs = lw_expr_intval(e);
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
811 if ((offs >= -128 && offs <= 127) || offs >= 0xFF80)
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
812 {
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
813 lwasm_register_error(as, l, W_OPERAND_SIZE);
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
814 }
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
815 }
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
816 }
cad5937314cb Add operandsizewarning pragma
William Astle <lost@l-w.ca>
parents: 402
diff changeset
817
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
818 lwasm_emitop(l, instab[l -> insn].ops[0]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
819 lwasm_emitop(l, l -> pb);
376
35d4213e6657 Add cycle counting to listing
William Astle <lost@l-w.ca>
parents: 370
diff changeset
820
35d4213e6657 Add cycle counting to listing
William Astle <lost@l-w.ca>
parents: 370
diff changeset
821 l -> cycle_adj = lwasm_cycle_calc_ind(l);
35d4213e6657 Add cycle counting to listing
William Astle <lost@l-w.ca>
parents: 370
diff changeset
822
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
823 if (l -> lint > 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
824 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
825 e = lwasm_fetch_expr(l, 0);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
826 lwasm_emitexpr(l, e, l -> lint);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
827 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
828 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
829
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
830 EMITFUNC(insn_emit_indexed)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
831 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
832 insn_emit_indexed_aux(as, l);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
833 }