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SwRI can revise these Terms at any time * without notice by updating this posting. * * Trademarks * * The SwRI logo is a trademark of SwRI in the United States and other countries. * */ #ident "@(#) combine_div.c 1.8 05/08/19 SwRI" #include "libbase_idfs.h" #include "user_defs.h" /******************************************************************************* * * * IR_COMBINE_DIVIDE SUBROUTINE * * * * DESCRIPTION * * This routine is used to combine the results in the permanent accumulator * * and the temporary accumulator built using the tables requested from the * * VIDF file. This module will be used when the TBL_OPER value specifies the * * division operation. * * * * INPUT VARIABLES * * SDDAS_FLOAT *ret_data pointer to the array that holds the values * * returned by the module * * SDDAS_FLOAT *accum_data pointer to the temporary accumulator * * SDDAS_LONG num_data the number of elements being returned * * * * USAGE * * ir_combine_divide (&ret_data, &accum_data, num_data) * * * * NECESSARY SUBPROGRAMS * * None * * * * EXTERNAL VARIABLES * * None * * * * INTERNAL VARIABLES * * reg SDDAS_FLOAT *f1,*f2 pointers to SDDAS_FLOAT values * * register SDDAS_LONG j looping variable * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ void ir_combine_divide (SDDAS_FLOAT *ret_data, SDDAS_FLOAT *accum_data, SDDAS_LONG num_data) { register SDDAS_FLOAT *f1, *f2; register SDDAS_LONG j; f1 = ret_data; f2 = accum_data; /* Although conditionals slow down FOR loops, checks must be made */ for (j = 0; j < num_data; ++j, ++f1, ++f2) { /* Already flagged value? Leave as is. */ if (*f1 < VALID_MIN) continue; /* Special flagged value identified? */ if (*f2 < VALID_MIN) *f1 = *f2; else *f1 /= *f2; } }