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|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
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|    Message 2,775 of 4,675    |
|    wolfgang kern to All    |
|    Re: BASE64 again    |
|    01 Jul 17 09:49:45    |
      From: nowhere@never.at              I wrote:       ...       >> Here's the 47 byte b64 decoder (that I'm trying to fixup)              > let me count:       > 3 Singles 100,114,118,(12e,+ 12f RET)       > 1 8x single 110, (80.. are only pairable if low byte with my way)       > 12 Pairs 108,10e,111,11b,11d,11f,121,123,125,127,129,12e              > 16 modifiers needed, shouldn't be a problem..              The AA AC wont pair well with my sub 7761 and need three bytes       more, either with an additional sub AX,.. or two apart SUB[ ],AH.       ...       >> 1622:0129 AA stosb       >> 1622:012A AC lodsb       ...       my modify:       ...       > 128 sub [bp+7a],ax ;ax= 7761 [07a] was 404c       > 12b sub [bp+74],al ; [074] was 22       > 12e sub [bp+71],ax ; and so on...       ...       > 172 sub [bp+4d],al              copy paste cursed:       my mod for LODSB use SUB[bp+4d],AH instead of AL (23-77=AC).       __       wolfgang              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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