Capsim Block Documentation
This star multiplies the incoming data stream by the parameter "Gain factor" in fixed-point arithmetic.Thestar is capable of doing extended precision arithmetic upto 64 bits result which is to be rounded to at least 32 bits after the fxadd.s star.
Port | Type | Name | |
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0 | float | x |
Num | Type | Name | Initial Value | Description |
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0 | int | numberOutputBuffers |
int i, samples, val; float input; int out1, out0; int sampleOut; |
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if ((numberOutputBuffers = NO_OUTPUT_BUFFERS()) <= 0) { fprintf(stdout,"roundi: no output buffers\n"); return(2); } for(i=0; i |
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for(samples = MIN_AVAIL(); samples >0; --samples) { IT_IN(0); input = x(0); for (i=0; i |
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/* Capsim (r) Text Mode Kernel (TMK) Star Library (Blocks) Copyright (C) 1989-2017 Silicon DSP Corporation This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA http://www.silicondsp.com Silicon DSP Corporation Las Vegas, Nevada */ |
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/* roundi.s */ /********************************************************************** roundi() *********************************************************************** This star multiplies the incoming data stream by the parameter "Gain factor" in fixed-point arithmetic.The star is capable of doing extended precision arithmetic upto 64 bits result which is to be rounded to at least 32 bits after the fxadd.s star. Parameters : 1 - (float) factor : FIR tap coefficient 2 - (int) qbits : Number of bits to represent the fraction 3 - (int) size : Total word length including the integer part and the sign bit Buffers: input buffer 0: integer samples output buffers: Auto fanout type doublePrecInt |
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