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root / trunk / code / projects / fp_math / main.c @ 1602

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#include <serial.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "fp_math.h"
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#define X_IN 0
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#define Y_OUT 1
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#define FP_COS 2
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#define FP_SIN 3
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#define FP_TAN 4
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#define EXIT 5
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int main(int argc, char** argv) { 
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        int32_t i, x, y;
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        char buf[128];
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        usb_init();
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        for(i=0; i < 10000; i++) { 
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                //Random number / sign
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                x = random();
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                x = ((rand() >> 2) & 1) ? x : -x;
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                usb_putc(X_IN);
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                for(i=0; i < 32; i += 8) 
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                        usb_putc((x >> i)  & 0xFF);
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                y = fp_cos(x);        
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                usb_putc(Y_OUT);
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                for(i=0; i < 32; i += 8) 
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                        usb_putc((y >> i)  & 0xFF);
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                usb_putc(FP_COS);
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                //sprintf(buf, "%ld = cos(%ld)\n\r", y, x);
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                //usb_puts(buf);
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        }
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        usb_putc(EXIT);
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        while(1);
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}
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