mirror of
https://github.com/openhwgroup/cvw
synced 2025-02-11 06:05:49 +00:00
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
#include <stdio.h>
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#include <stdint.h>
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#include "softfloat.h"
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#include "softfloat_types.h"
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int float_rounding_mode = 0;
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union sp {
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unsigned short x[2];
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float y;
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} X;
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int main()
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{
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uint8_t rounding_mode;
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uint8_t exceptions;
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uint32_t multiplier, multiplicand, addend, result;
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float32_t f_multiplier, f_multiplicand, f_addend, f_result;
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multiplier = 0xbf800000;
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multiplicand = 0xbf800000;
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addend = 0xffaaaaaa;
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f_multiplier.v = multiplier;
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f_multiplicand.v = multiplicand;
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f_addend.v = addend;
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softfloat_roundingMode = rounding_mode;
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softfloat_exceptionFlags = 0;
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softfloat_detectTininess = softfloat_tininess_beforeRounding;
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f_result = f32_mulAdd(f_multiplier, f_multiplicand, f_addend);
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result = f_result.v;
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exceptions = softfloat_exceptionFlags & 0x1f;
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printf("%x\n", f_result.v);
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// Print out SP number
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X.x[1] = (f_result.v & 0xffff0000) >> 16;
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X.x[0] = (f_result.v & 0x0000ffff);
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printf("Number = %f\n", X.y);
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return 0;
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}
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