FreeCalypso > hg > freecalypso-reveng
annotate arm7dis/thumbdis.c @ 164:f80bd142971d
leo-obj/frame_na7_db_ir: os_mem.hints added
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Sun, 15 Jun 2014 01:43:55 +0000 |
parents | c883e60df239 |
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rev | line source |
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1 /* |
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2 * Lean and mean ARM7TDMI disassembler |
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3 * Written by Spacefalcon the Outlaw |
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4 */ |
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5 |
97
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6 #include <sys/types.h> |
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7 #include <stdio.h> |
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8 #include <stdlib.h> |
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9 #include <string.h> |
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10 #include <strings.h> |
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11 |
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12 extern char *binfilename; |
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13 extern u_char *filemap; |
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14 extern unsigned disasm_len, base_vma; |
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15 |
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16 extern unsigned get_u16(), get_u32(); |
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17 |
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18 extern char *regnames[16], *condition_decode[16], *shift_types[4]; |
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19 |
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20 static void |
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21 format_1_2(word) |
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22 unsigned word; |
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23 { |
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24 unsigned op, imm; |
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25 |
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26 op = (word >> 11) & 3; |
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27 if (op != 3) { |
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28 /* format 1 */ |
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29 imm = (word >> 6) & 0x1F; |
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30 if (op != 0 && imm == 0) |
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31 imm = 32; |
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32 printf("%s\t%s, %s, #%u\n", shift_types[op], regnames[word&7], |
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33 regnames[(word>>3)&7], imm); |
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34 return; |
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35 } |
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36 /* format 2 */ |
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37 printf("%s\t%s, %s, ", word&0x200 ? "sub" : "add", regnames[word&7], |
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38 regnames[(word>>3)&7]); |
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39 if (word & 0x400) |
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40 printf("#%u\n", (word >> 6) & 7); |
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41 else |
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42 printf("%s\n", regnames[(word >> 6) & 7]); |
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43 } |
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44 |
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45 static void |
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46 format_3(word) |
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47 unsigned word; |
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48 { |
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49 static char *opctab[4] = {"mov", "cmp", "add", "sub"}; |
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50 unsigned imm; |
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51 |
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52 imm = word & 0xFF; |
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53 printf("%s\t%s, #%u", opctab[(word>>11)&3], regnames[(word>>8)&7], imm); |
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54 if (imm > 9) |
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55 printf("\t; 0x%x", imm); |
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56 putchar('\n'); |
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57 } |
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58 |
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59 static void |
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60 format_4(word) |
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61 unsigned word; |
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62 { |
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63 static char *opc[16] = {"and", "eor", "lsl", "lsr", |
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64 "asr", "adc", "sbc", "ror", |
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65 "tst", "neg", "cmp", "cmn", |
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66 "orr", "mul", "bic", "mvn"}; |
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67 |
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68 printf("%s\t%s, %s\n", opc[(word>>6)&0xF], regnames[word&7], |
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69 regnames[(word>>3)&7]); |
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70 } |
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71 |
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72 static void |
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73 format_5_bx(word) |
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74 unsigned word; |
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75 { |
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76 if (word & 0x80) |
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77 printf("<invalid: blx instead of bx>\n"); |
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78 else |
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79 printf("bx\t%s\n", regnames[(word>>3)&0xF]); |
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80 } |
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81 |
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82 static void |
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83 format_5_hiops(word) |
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84 unsigned word; |
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85 { |
101
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86 static char *opctab[3] = {"add", "cmp", "mov"}; |
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87 int reg1, reg2, op; |
97
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88 |
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89 if (word & 0xC0) { |
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90 reg1 = word & 7; |
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91 if (word & 0x80) |
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92 reg1 += 8; |
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93 reg2 = (word >> 3) & 0xF; |
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94 op = (word >> 8) & 3; |
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95 if (op == 2 && reg1 == reg2 && reg1 != 15) |
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96 printf("nop\t\t\t(mov %s, %s)\n", |
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97 regnames[reg1], regnames[reg2]); |
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98 else |
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99 printf("%s\t%s, %s\n", opctab[op], |
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100 regnames[reg1], regnames[reg2]); |
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101 } else |
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102 printf("<invalid: hi-reg format with both low regs>\n"); |
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103 } |
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104 |
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105 static void |
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106 format_5(word) |
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107 unsigned word; |
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108 { |
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109 if ((word & 0x300) == 0x300) |
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110 format_5_bx(word); |
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111 else |
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112 format_5_hiops(word); |
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113 } |
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114 |
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115 static void |
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116 format_6(off, word) |
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117 unsigned off, word; |
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118 { |
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119 unsigned loff, litoff; |
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120 |
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121 loff = (word & 0xFF) << 2; |
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122 off &= ~3; |
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123 off += 4; |
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124 litoff = off + loff; |
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125 if (litoff+4 <= disasm_len) |
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126 printf("ldr\t%s, =0x%x\t; via 0x%x\n", regnames[(word>>8)&7], |
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127 get_u32(filemap + litoff), base_vma + litoff); |
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128 else |
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129 printf("ldr\t%s, [pc, #%u]\t(0x%x)\n", regnames[(word>>8)&7], |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
130 loff, base_vma + litoff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
131 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
132 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
133 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
134 format_7(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
135 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
136 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
137 printf("%s%s\t%s, [%s, %s]\n", word&0x800 ? "ldr" : "str", |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
138 word&0x400 ? "b" : "", regnames[word&7], |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
139 regnames[(word>>3)&7], regnames[(word>>6)&7]); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
140 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
141 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
142 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
143 format_8(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
144 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
145 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
146 static char *opc[4] = {"strh", "ldrsb", "ldrh", "ldrsh"}; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
147 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
148 printf("%s\t%s, [%s, %s]\n", opc[(word>>10)&3], regnames[word&7], |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
149 regnames[(word>>3)&7], regnames[(word>>6)&7]); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
150 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
151 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
152 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
153 format_9(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
154 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
155 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
156 unsigned loff; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
157 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
158 loff = (word >> 6) & 0x1F; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
159 if (!(word & 0x1000)) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
160 loff <<= 2; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
161 printf("%s%s\t%s, [%s, #%u]", word&0x800 ? "ldr" : "str", |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
162 word&0x1000 ? "b" : "", regnames[word&7], |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
163 regnames[(word>>3)&7], loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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164 if (loff >= 10) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
165 printf("\t; 0x%x", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
166 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
167 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
168 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
169 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
170 format_10(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
171 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
172 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
173 unsigned loff; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
174 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
175 loff = (word >> 6) & 0x1F; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
176 loff <<= 1; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
177 printf("%sh\t%s, [%s, #%u]", word&0x800 ? "ldr" : "str", |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
178 regnames[word&7], regnames[(word>>3)&7], loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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179 if (loff >= 10) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
180 printf("\t; 0x%x", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
181 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
182 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
183 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
184 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
185 format_11(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
186 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
187 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
188 unsigned loff; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
189 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
190 loff = (word & 0xFF) << 2; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
191 printf("%s\t%s, [sp, #%u]", word&0x800 ? "ldr" : "str", |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
192 regnames[(word>>8)&7], loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
193 if (loff >= 10) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
194 printf("\t; 0x%x", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
195 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
196 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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|
197 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
198 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
199 format_12(off, word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
200 unsigned off, word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
201 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
202 unsigned loff; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
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|
203 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
204 loff = (word & 0xFF) << 2; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
205 printf("add\t%s, %s, #%u", regnames[(word>>8)&7], |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
206 word&0x800 ? "sp" : "pc", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
207 if (loff >= 10) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
208 printf("\t; 0x%x", loff); |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
209 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
210 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
211 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
212 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
213 format_13(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
214 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
215 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
216 unsigned loff; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
217 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
218 if ((word & 0xFF00) != 0xB000) { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
219 printf("<invalid format 13>\n"); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
220 return; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
221 } |
103
a10acb1688e0
thumbdis: buglet in the decoding of sub-from-sp
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
101
diff
changeset
|
222 loff = (word & 0x7F) << 2; |
97
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
223 printf("%s\tsp, #%u", word&0x80 ? "sub" : "add", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
224 if (loff >= 10) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
225 printf("\t; 0x%x", loff); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
226 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
227 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
228 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
229 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
230 format_14(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
231 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
232 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
233 int r, flag; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
234 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
235 if ((word & 0xF600) != 0xB400) { |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
236 printf("<invalid format 14>\n"); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
237 return; |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
238 } |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
239 printf("%s\t{", word&0x800 ? "pop" : "push"); |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
240 flag = 0; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
241 for (r = 0; r < 9; r++) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
242 if (word & (1 << r)) { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
243 if (flag) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
244 fputs(", ", stdout); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
245 if (r == 8) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
246 fputs(word&0x800 ? "pc" : "lr", stdout); |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
247 else |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
248 fputs(regnames[r], stdout); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
249 flag = 1; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
250 } |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
251 putchar('}'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
252 putchar('\n'); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
253 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
254 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
255 static void |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
256 format_15(word) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
257 unsigned word; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
258 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
259 int r, flag; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
260 |
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thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
261 printf("%sia\t%s!, {", word&0x800 ? "ldm" : "stm", |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
262 regnames[(word>>8)&7]); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
263 flag = 0; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
264 for (r = 0; r < 8; r++) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
265 if (word & (1 << r)) { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
266 if (flag) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
267 fputs(", ", stdout); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
268 fputs(regnames[r], stdout); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
269 flag = 1; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
270 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
271 putchar('}'); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
272 putchar('\n'); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
273 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
274 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
275 static void |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
276 format_16_17(off, word) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
277 unsigned off, word; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
278 { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
279 unsigned cond; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
280 unsigned dest; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
281 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
282 cond = (word >> 8) & 0xF; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
283 switch (cond) { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
284 case 0xE: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
285 printf("<invalid: bal>\n"); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
286 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
287 case 0xF: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
288 printf("swi\t0x%x\n", word & 0xFF); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
289 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
290 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
291 dest = (word & 0xFF) << 1; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
292 if (dest & 0x00000100) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
293 dest |= 0xFFFFFE00; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
294 dest += base_vma + off + 4; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
295 printf("b%s\t0x%x\n", condition_decode[cond], dest); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
296 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
297 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
298 static void |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
299 format_18(off, word) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
300 unsigned off, word; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
301 { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
302 unsigned dest; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
303 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
304 if (word & 0x800) { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
305 printf("<invalid format 18>\n"); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
306 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
307 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
308 dest = (word & 0x7FF) << 1; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
309 if (dest & 0x00000800) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
310 dest |= 0xFFFFF000; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
311 dest += base_vma + off + 4; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
312 printf("b\t0x%x\n", dest); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
313 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
314 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
315 void |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
316 thumb_disasm_line(off) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
317 unsigned off; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
318 { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
319 unsigned word; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
320 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
321 word = get_u16(filemap + off); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
322 printf("%8x:\t%04x\t\t", base_vma + off, word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
323 switch (word >> 12) { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
324 case 0: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
325 case 1: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
326 format_1_2(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
327 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
328 case 2: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
329 case 3: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
330 format_3(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
331 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
332 case 4: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
333 if (word & 0x800) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
334 format_6(off, word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
335 else if (word & 0x400) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
336 format_5(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
337 else |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
338 format_4(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
339 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
340 case 5: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
341 if (word & 0x200) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
342 format_8(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
343 else |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
344 format_7(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
345 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
346 case 6: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
347 case 7: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
348 format_9(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
349 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
350 case 8: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
351 format_10(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
352 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
353 case 9: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
354 format_11(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
355 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
356 case 0xA: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
357 format_12(off, word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
358 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
359 case 0xB: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
360 if (word & 0x400) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
361 format_14(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
362 else |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
363 format_13(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
364 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
365 case 0xC: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
366 format_15(word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
367 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
368 case 0xD: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
369 format_16_17(off, word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
370 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
371 case 0xE: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
372 format_18(off, word); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
373 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
374 case 0xF: |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
375 printf("<half-bl>\n"); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
376 return; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
377 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
378 } |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
379 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
380 thumb_check_bl(off) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
381 unsigned off; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
382 { |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
383 unsigned ins1, ins2; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
384 unsigned dest; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
385 |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
386 if (off + 4 > disasm_len) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
387 return(0); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
388 ins1 = get_u16(filemap + off); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
389 if ((ins1 & 0xF800) != 0xF000) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
390 return(0); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
391 ins2 = get_u16(filemap + off + 2); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
392 if ((ins2 & 0xF800) != 0xF800) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
393 return(0); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
394 /* match */ |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
395 dest = ((ins1 & 0x7FF) << 12) | ((ins2 & 0x7FF) << 1); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
396 if (dest & 0x00400000) |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
397 dest |= 0xFF800000; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
398 dest += base_vma + off + 4; |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
399 printf("%8x:\t%04x %04x\tbl\t0x%x\n", base_vma + off, ins1, ins2, dest); |
fb5ea2758482
thumbdis written, compiles
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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400 return(1); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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401 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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402 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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403 main(argc, argv) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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404 char **argv; |
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405 { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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406 unsigned off; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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407 |
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408 common_init(argc, argv, 2); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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409 for (off = 0; off < disasm_len; ) { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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410 if (thumb_check_bl(off)) |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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411 off += 4; |
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412 else { |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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413 thumb_disasm_line(off); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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414 off += 2; |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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415 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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416 } |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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417 exit(0); |
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418 } |