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/* Test of addition. Shift is needed.
$Id: add-02.c,v 1.1 2007/02/05 21:35:58 dmix Exp $
*/
#include <stdio.h>
#include <stdlib.h>
#include "progmem.h"
union lofl_u {
long lo;
float fl;
};
volatile union lofl_u v = { .lo = 1 };
PROGMEM const struct { /* Table of test cases: x + y = z */
union lofl_u x, y, z;
} t[] = {
/* 1.0 + y */
{ { 0x3f800000 }, { 0x3f000000 }, { 0x3fc00000 } },
{ { 0x3f800000 }, { 0x3e800000 }, { 0x3fa00000 } },
{ { 0x3f800000 }, { 0x3e000000 }, { 0x3f900000 } },
{ { 0x3f800000 }, { 0x3d800000 }, { 0x3f880000 } },
{ { 0x3f800000 }, { 0x3d000000 }, { 0x3f840000 } },
{ { 0x3f800000 }, { 0x3c800000 }, { 0x3f820000 } },
{ { 0x3f800000 }, { 0x3c000000 }, { 0x3f810000 } },
{ { 0x3f800000 }, { 0x3b800000 }, { 0x3f808000 } },
{ { 0x3f800000 }, { 0x3b000000 }, { 0x3f804000 } },
{ { 0x3f800000 }, { 0x3a800000 }, { 0x3f802000 } },
{ { 0x3f800000 }, { 0x3a000000 }, { 0x3f801000 } },
{ { 0x3f800000 }, { 0x39800000 }, { 0x3f800800 } },
{ { 0x3f800000 }, { 0x39000000 }, { 0x3f800400 } },
{ { 0x3f800000 }, { 0x38800000 }, { 0x3f800200 } },
{ { 0x3f800000 }, { 0x38000000 }, { 0x3f800100 } },
{ { 0x3f800000 }, { 0x37800000 }, { 0x3f800080 } },
{ { 0x3f800000 }, { 0x37000000 }, { 0x3f800040 } },
{ { 0x3f800000 }, { 0x36800000 }, { 0x3f800020 } },
{ { 0x3f800000 }, { 0x36000000 }, { 0x3f800010 } },
{ { 0x3f800000 }, { 0x35800000 }, { 0x3f800008 } },
{ { 0x3f800000 }, { 0x35000000 }, { 0x3f800004 } },
{ { 0x3f800000 }, { 0x34800000 }, { 0x3f800002 } },
{ { 0x3f800000 }, { 0x34000000 }, { 0x3f800001 } },
{ { 0x3f800000 }, { 0x33800000 }, { 0x3f800000 } },
{ { 0x3f800000 }, { 0x33000000 }, { 0x3f800000 } },
{ { 0x3f800000 }, { 0x00000001 }, { 0x3f800000 } },
/* ~1.0 - y */
{ { 0x3f7fffff }, { 0xbe800000 }, { 0x3f3fffff } },
{ { 0x3f7fffff }, { 0xbe000000 }, { 0x3f5fffff } },
{ { 0x3f7fffff }, { 0xbd800000 }, { 0x3f6fffff } },
{ { 0x3f7fffff }, { 0xbd000000 }, { 0x3f77ffff } },
{ { 0x3f7fffff }, { 0xbc800000 }, { 0x3f7bffff } },
{ { 0x3f7fffff }, { 0xbc000000 }, { 0x3f7dffff } },
{ { 0x3f7fffff }, { 0xbb800000 }, { 0x3f7effff } },
{ { 0x3f7fffff }, { 0xbb000000 }, { 0x3f7f7fff } },
{ { 0x3f7fffff }, { 0xba800000 }, { 0x3f7fbfff } },
{ { 0x3f7fffff }, { 0xba000000 }, { 0x3f7fdfff } },
{ { 0x3f7fffff }, { 0xb9800000 }, { 0x3f7fefff } },
{ { 0x3f7fffff }, { 0xb9000000 }, { 0x3f7ff7ff } },
{ { 0x3f7fffff }, { 0xb8800000 }, { 0x3f7ffbff } },
{ { 0x3f7fffff }, { 0xb8000000 }, { 0x3f7ffdff } },
{ { 0x3f7fffff }, { 0xb7800000 }, { 0x3f7ffeff } },
{ { 0x3f7fffff }, { 0xb7000000 }, { 0x3f7fff7f } },
{ { 0x3f7fffff }, { 0xb6800000 }, { 0x3f7fffbf } },
{ { 0x3f7fffff }, { 0xb6000000 }, { 0x3f7fffdf } },
{ { 0x3f7fffff }, { 0xb5800000 }, { 0x3f7fffef } },
{ { 0x3f7fffff }, { 0xb5000000 }, { 0x3f7ffff7 } },
{ { 0x3f7fffff }, { 0xb4800000 }, { 0x3f7ffffb } },
{ { 0x3f7fffff }, { 0xb4000000 }, { 0x3f7ffffd } },
{ { 0x3f7fffff }, { 0xb3800000 }, { 0x3f7ffffe } },
{ { 0x3f7fffff }, { 0xb3000000 }, { 0x3f7ffffe } },
{ { 0x3f7fffff }, { 0xb2800000 }, { 0x3f7fffff } },
{ { 0x3f7fffff }, { 0xb2000000 }, { 0x3f7fffff } },
{ { 0x3f7fffff }, { 0x80000001 }, { 0x3f7fffff } },
};
void x_exit (int index)
{
#ifndef __AVR__
fprintf (stderr, "t[%d]: %#lx\n", index - 1, v.lo);
#endif
exit (index ? index : -1);
}
int main ()
{
union lofl_u x,y,z;
int i;
for (i = 0; i < (int) (sizeof(t) / sizeof(t[0])); i++) {
x.lo = pgm_read_dword (& t[i].x);
y.lo = pgm_read_dword (& t[i].y);
z.lo = pgm_read_dword (& t[i].z);
v.fl = x.fl + y.fl;
/* Comparison is integer to verify the zero sign. */
if (v.lo != z.lo)
x_exit (i+1);
}
return 0;
}
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