Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | #!/usr/local/bin/perl |
| 2 | |
| 3 | $L="edi"; |
| 4 | $R="esi"; |
| 5 | |
| 6 | sub DES_encrypt3 |
| 7 | { |
| 8 | local($name,$enc)=@_; |
| 9 | |
| 10 | &function_begin_B($name,""); |
| 11 | &push("ebx"); |
| 12 | &mov("ebx",&wparam(0)); |
| 13 | |
| 14 | &push("ebp"); |
| 15 | &push("esi"); |
| 16 | |
| 17 | &push("edi"); |
| 18 | |
| 19 | &comment(""); |
| 20 | &comment("Load the data words"); |
| 21 | &mov($L,&DWP(0,"ebx","",0)); |
| 22 | &mov($R,&DWP(4,"ebx","",0)); |
| 23 | &stack_push(3); |
| 24 | |
| 25 | &comment(""); |
| 26 | &comment("IP"); |
| 27 | &IP_new($L,$R,"edx",0); |
| 28 | |
| 29 | # put them back |
| 30 | |
| 31 | if ($enc) |
| 32 | { |
| 33 | &mov(&DWP(4,"ebx","",0),$R); |
| 34 | &mov("eax",&wparam(1)); |
| 35 | &mov(&DWP(0,"ebx","",0),"edx"); |
| 36 | &mov("edi",&wparam(2)); |
| 37 | &mov("esi",&wparam(3)); |
| 38 | } |
| 39 | else |
| 40 | { |
| 41 | &mov(&DWP(4,"ebx","",0),$R); |
| 42 | &mov("esi",&wparam(1)); |
| 43 | &mov(&DWP(0,"ebx","",0),"edx"); |
| 44 | &mov("edi",&wparam(2)); |
| 45 | &mov("eax",&wparam(3)); |
| 46 | } |
| 47 | &mov(&swtmp(2), (DWC(($enc)?"1":"0"))); |
| 48 | &mov(&swtmp(1), "eax"); |
| 49 | &mov(&swtmp(0), "ebx"); |
| 50 | &call("DES_encrypt2"); |
| 51 | &mov(&swtmp(2), (DWC(($enc)?"0":"1"))); |
| 52 | &mov(&swtmp(1), "edi"); |
| 53 | &mov(&swtmp(0), "ebx"); |
| 54 | &call("DES_encrypt2"); |
| 55 | &mov(&swtmp(2), (DWC(($enc)?"1":"0"))); |
| 56 | &mov(&swtmp(1), "esi"); |
| 57 | &mov(&swtmp(0), "ebx"); |
| 58 | &call("DES_encrypt2"); |
| 59 | |
| 60 | &stack_pop(3); |
| 61 | &mov($L,&DWP(0,"ebx","",0)); |
| 62 | &mov($R,&DWP(4,"ebx","",0)); |
| 63 | |
| 64 | &comment(""); |
| 65 | &comment("FP"); |
| 66 | &FP_new($L,$R,"eax",0); |
| 67 | |
| 68 | &mov(&DWP(0,"ebx","",0),"eax"); |
| 69 | &mov(&DWP(4,"ebx","",0),$R); |
| 70 | |
| 71 | &pop("edi"); |
| 72 | &pop("esi"); |
| 73 | &pop("ebp"); |
| 74 | &pop("ebx"); |
| 75 | &ret(); |
| 76 | &function_end_B($name); |
| 77 | } |
| 78 | |
| 79 | |