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Annotation of cci/usr/src/usr.lib/libF77/README, revision 1.1

1.1     ! root        1:        4.3 libF77 port & performance enhancement changes
        !             2:        -------------------------------------------------
        !             3: 
        !             4: 1. Trap related routines - traper_.c trapov_.c trpfpe_.c - had been
        !             5:    adapted to fit TAHOE machine. See comments in source files.
        !             6: 
        !             7: 2. Variables had been declared as register variables whenever that seemed
        !             8:    appropriate.
        !             9: 
        !            10: 3. The following C files had been modified (in addition to 2. above):
        !            11:        * bit.c - got rid of parameter check and internal calls.
        !            12:        * cabs.c - cast everything to single precision; uses sign bit negation.
        !            13:        * d_cnjg.c - uses sign bit negation.
        !            14:        * d_mod.c - uses sign bit negation.
        !            15:        * d_sign - uses sign bit negation; slightly changed algorithm.
        !            16:        * string routines had been rewritten in asm in order to use string
        !            17:          instructions; asm files have "_s" suffix:
        !            18:                - s_copy.c      -> s_copy_s.s
        !            19:                - s_cmp.c       -> scmp_s.s
        !            20:                - rindex_.c     -> rindex_s.s
        !            21:                - i_indx.c      -> i_indx_s.s
        !            22:                - h_indx.c      -> h_indx_s.s
        !            23:                - hl_ge.c       -> hl_ge_s.s
        !            24:                - hl_gt.c       -> hl_gt_s.s
        !            25:                - hl_le.c       -> hl_le_s.s
        !            26:                - hl_lt.c       -> hl_lt_s.s
        !            27:                - l_ge.c        -> hl_ge_s.s
        !            28:                - l_gt.c        -> hl_gt_s.s
        !            29:                - l_le.c        -> hl_le_s.s
        !            30:                - l_lt.c        -> hl_lt_s.s
        !            31:                - s_cat.c       -> s_cat_s.s
        !            32:        * pow_ci.c - rewritten for single precision computation; may loose some 
        !            33:                     precision (last bit), but this should be expected when 
        !            34:                     using a single precision function; if double precision is
        !            35:                     needed, pow_zi has to be used.
        !            36:        * pow_hh.c - got rid of a redundant statement.
        !            37:        * pow_ii.c - got rid of a redundant statement.
        !            38:        * r_mod.c - uses sign bit negation.
        !            39:        * r_tan - rewritten for single precision computation, and use of sinf &
        !            40:                  cosf machine instructions; precision is lost up to 4E-7;
        !            41:                  if more precision is needed, d_tan has to be used.
        !            42:        * range.c - rewritten in asm to avoid stack variables; became range_s.s.
        !            43:        * system_.c - rewritten in asm to use string instructions;
        !            44:                      became system_s.s
        !            45:        * z_div - uses sign bit negation.
        !            46:        * z_sqrt - uses sign bit negation.
        !            47:        * zabs.c - uses sign bit negation; minor statement change.

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