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|    comp.lang.asm.x86    |    Ahh, the lost art of x86 assembly    |    4,675 messages    |
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|    Kerr-Mudd, John to All    |
|    Rot13 for DOS    |
|    22 Jan 23 09:24:40    |
      XPost: comp.os.msdos.programmer, alt.lang.asm       From: admin@nospicedham.127.0.0.1              Finally, a rot13 program for DOS that's smaller than the standard version       with jumps:                     ->u 100 l2E       1637:0100 B6 02 mov dh,02       1637:0102 B4 3F mov ah,3F       1637:0104 89 C1 mov cx,ax       1637:0106 CD 21 int 21       1637:0108 89 D6 mov si,dx       1637:010A 91 xchg ax,cx       1637:010B E3 20 jcxzw 012D       1637:010D 51 push cx       1637:010E AC lodsb       main rot13 rtn       1637:010F 24 DF and al,DF       1637:0111 2C 41 sub al,41       1637:0113 3C 1A cmp al,1A       1637:0115 18 E4 sbb ah,ah       1637:0117 3C 0D cmp al,0D       1637:0119 D6 salc       1637:011A 25 1A F3 and ax,F31A       1637:011D 00 E0 add al,ah       1637:011F 00 44 FF add [si-01],al              1637:0122 E2 EA loopw 010E       1637:0124 59 pop cx       1637:0125 43 inc bx       1637:0126 B4 40 mov ah,40       1637:0128 CD 21 int 21       1637:012A 4B dec bx       1637:012B EB D5 jmp 0102       1637:012D C3 ret       -> d 100 l2E       1637:0100 B6 02 B4 3F-89 C1 CD 21-89 D6 91 E3-20 51 AC 24 ...?...!.... Q.$       1637:0110 DF 2C 41 3C-1A 18 E4 3C-0D D6 25 1A-F3 00 E0 00 .,A<...<..%.....       1637:0120 44 FF-E2 EA 59 43-B4 40 CD 21-4B EB D5 C3 D...YC.@.!K...       -> q              --       Bah, and indeed Humbug.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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