/* * output one group of 3 bytes, pointed at by p, on file f. */ outdec(p, f) char *p; FILE *f; { int c1, c2, c3, c4; c1 = *p >> 2; c2 = (*p << 4) & 060 | (p[1] >> 4) & 017; c3 = (p[1] << 2) & 074 | (p[2] >> 6) & 03; c4 = p[2] & 077; putc(ENC(c1), f); putc(ENC(c2), f); putc(ENC(c3), f); putc(ENC(c4), f); } /* ENC is the basic 1 character encoding function to make a char printing */ #define ENC(c) (((c) & 077) + ' ') /* with luck with will compile to: mov al, [esi] shr al, 2 add al, ' ' stosb mov al, [esi] shl al, 4 and al, 60o mov ah, [esi+1] shr ah, 4 and ah, 017o or al,ah add al, ' ' stosb mov al, [esi+1] shl al, 2 and al, 074o mov ah, [esi+2] shr ah, 6 and ah, 03o or al,ah add al, ' ' stosb mov al,[esi+2] and al, 077o add al, ' ' stosb which is beaten all to hell by: lodsw dec esi mov edx,eax mov ecx,4 .Repeat and al, 00111111y add al, ' ' stosb shr edx, 6 mov al,dl .Untilcxz
file: /Techref/method/codec/uuencode.htm, 1KB, , updated: 1999/12/21 16:29, local time: 2024/11/26 23:51,
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