tasks_1_7_msvc.asm

_table    db 000h, 080h, 040h, 0c0h, 020h, 0a0h, 060h, 0e0h
    db 010h, 090h, 050h, 0d0h, 030h, 0b0h, 070h, 0f0h
    db 008h, 088h, 048h, 0c8h, 028h, 0a8h, 068h, 0e8h
    db 018h, 098h, 058h, 0d8h, 038h, 0b8h, 078h, 0f8h
    db 004h, 084h, 044h, 0c4h, 024h, 0a4h, 064h, 0e4h
    db 014h, 094h, 054h, 0d4h, 034h, 0b4h, 074h, 0f4h
    db 00ch, 08ch, 04ch, 0cch, 02ch, 0ach, 06ch, 0ech
    db 01ch, 09ch, 05ch, 0dch, 03ch, 0bch, 07ch, 0fch
    db 002h, 082h, 042h, 0c2h, 022h, 0a2h, 062h, 0e2h
    db 012h, 092h, 052h, 0d2h, 032h, 0b2h, 072h, 0f2h
    db 00ah, 08ah, 04ah, 0cah, 02ah, 0aah, 06ah, 0eah
    db 01ah, 09ah, 05ah, 0dah, 03ah, 0bah, 07ah, 0fah
    db 006h, 086h, 046h, 0c6h, 026h, 0a6h, 066h, 0e6h
    db 016h, 096h, 056h, 0d6h, 036h, 0b6h, 076h, 0f6h
    db 00eh, 08eh, 04eh, 0ceh, 02eh, 0aeh, 06eh, 0eeh
    db 01eh, 09eh, 05eh, 0deh, 03eh, 0beh, 07eh, 0feh
    db 001h, 081h, 041h, 0c1h, 021h, 0a1h, 061h, 0e1h
    db 011h, 091h, 051h, 0d1h, 031h, 0b1h, 071h, 0f1h
    db 009h, 089h, 049h, 0c9h, 029h, 0a9h, 069h, 0e9h
    db 019h, 099h, 059h, 0d9h, 039h, 0b9h, 079h, 0f9h
    db 005h, 085h, 045h, 0c5h, 025h, 0a5h, 065h, 0e5h
    db 015h, 095h, 055h, 0d5h, 035h, 0b5h, 075h, 0f5h
    db 00dh, 08dh, 04dh, 0cdh, 02dh, 0adh, 06dh, 0edh
    db 01dh, 09dh, 05dh, 0ddh, 03dh, 0bdh, 07dh, 0fdh
    db 003h, 083h, 043h, 0c3h, 023h, 0a3h, 063h, 0e3h
    db 013h, 093h, 053h, 0d3h, 033h, 0b3h, 073h, 0f3h
    db 00bh, 08bh, 04bh, 0cbh, 02bh, 0abh, 06bh, 0ebh
    db 01bh, 09bh, 05bh, 0dbh, 03bh, 0bbh, 07bh, 0fbh
    db 007h, 087h, 047h, 0c7h, 027h, 0a7h, 067h, 0e7h
    db 017h, 097h, 057h, 0d7h, 037h, 0b7h, 077h, 0f7h
    db 00fh, 08fh, 04fh, 0cfh, 02fh, 0afh, 06fh, 0efh
    db 01fh, 09fh, 05fh, 0dfh, 03fh, 0bfh, 07fh, 0ffh

f               proc near

arg_0           = dword ptr  4

                mov     edx, [esp+arg_0]
                movzx   eax, dl
                movzx   eax, _table[eax]
                mov     ecx, edx
                shr     edx, 8
                movzx   edx, dl
                movzx   edx, _table[edx]
                shl     ax, 8
                movzx   eax, ax
                or      eax, edx
                shr     ecx, 10h
                movzx   edx, cl
                movzx   edx, _table[edx]
                shr     ecx, 8
                movzx   ecx, cl
                movzx   ecx, _table[ecx]
                shl     dx, 8
                movzx   edx, dx
                shl     eax, 10h
                or      edx, ecx
                or      eax, edx
                retn
f               endp