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1 #include <stdint.h>
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2 #include <stdio.h>
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3 #include <stdlib.h>
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4 #include <inttypes.h>
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5
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6 static void decode_size(unsigned long x)
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7 {
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8 const char *lut[] = {"No", "One", "Two", "Four"};
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9
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10 printf("k%sByteCode", lut[x & 3]);
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11 }
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12
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13 int main(int argc, char *argv[])
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14 {
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15 unsigned long x;
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16
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17 if (argc < 2) {
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18 fprintf(stderr, "usage: decrypt-mixed-call <param>\n");
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19 return 1;
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20 }
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21
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22 x = strtoul(argv[1], NULL, 0);
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23
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24 switch (x & 15) {
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25 case 0:
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26 printf("kPascalStackBased");
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27 break;
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28 case 1:
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29 printf("kCStackBased");
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30 break;
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31 case 2:
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32 printf("I'm too lazy for this!");
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33 return 1;
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34 case 5:
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35 printf("kThinkCStackBased");
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36 break;
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37 case 8:
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38 printf("kD0DispatchedPascalStackBased");
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39 break;
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40 case 9:
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41 printf("kD0DispatchedCStackBased");
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42 break;
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43 case 12:
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44 printf("kD1DispatchedPascalStackBased");
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45 break;
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46 case 14:
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47 printf("kStackDispatchedPascalStackBased");
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48 break;
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49 default:
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50 /* Invalid */
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51 return 1;
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52 }
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53
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54 x >>= 4;
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55
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56 printf(" | RESULT_SIZE(");
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57 decode_size(x);
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58 printf(")");
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59
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60 /* trim the fat */
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61 x >>= 2;
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62
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63 /* hopefully we're using stack, since that's the ONLY thing i'm handling */
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64 for (uint32_t i = 1; i < 13 && x; i++, x >>= 2) {
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65 printf(" | STACK_ROUTINE_PARAMETER(%" PRIu32 ", ", i);
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66 decode_size(x);
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67 printf(")");
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68 }
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69
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70 puts("");
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71
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72 return 0;
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73 }
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