mpw/test/test_sane.c

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#include <Math.h>
#include <SANE.h>
#include <stdio.h>
//extern pascal extended NAN(short x);
void dump_decimal(const decimal *d)
{
fprintf(stdout, "%d : %d : %.*s\n",
d->sgn, d->exp, d->sig.length, d->sig.text);
}
void test_inf(void)
{
decimal d;
decform df;
char buffer[80+1];
printf("\nInfinity\n");
df.style = 1;
df.digits = 10;
num2dec(&df,-inf(), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 0;
df.digits = 10;
num2dec(&df, -inf(), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 1;
df.digits = 0;
num2dec(&df, inf(), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 0;
df.digits = 0;
num2dec(&df, inf(), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
}
void test_nan(void)
{
// num2dec generates N[16-digit]
// str2dec generates NAN(001) -- NAN(255)
decimal d;
decform df;
char buffer[80+1];
printf("\nNaN\n");
df.style = 1;
df.digits = 0;
num2dec(&df,nan(1), &d);
dump_decimal(&d);
// 7 : N4001000000000000
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 0;
df.digits = 0;
num2dec(&df, nan(2), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 1;
df.digits = 10;
num2dec(&df,-nan(3), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 0;
df.digits = 10;
num2dec(&df, nan(4), &d);
dump_decimal(&d);
//
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
df.style = 0;
df.digits = 10;
num2dec(&df, nan(255), &d);
dump_decimal(&d);
// 7 : N40FF000000000000
dec2str(&df, &d, buffer);
fprintf(stdout, "%s\n", buffer);
}
void test_fxc2dec(void)
{
decimal d;
decform df;
df.style = 0;
df.digits = 100;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// 0 : -18 : 1125000000000000000
df.style = 0;
df.digits = 10;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// 0 : -9 : 1125000000
df.style = 0;
df.digits = 2;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// 0 : -1 : 11
df.style = 1;
df.digits = 100;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// 0 : -18 : 1125000000000000000
df.style = 1;
df.digits = 10;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// 0 : -10 : 11250000000
df.style = 1;
df.digits = 2;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
//0 : -2 : 112
//
df.style = 0;
df.digits = 100;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
// 0 : 7 : 1000000000000000000
df.style = 0;
df.digits = 10;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
// 0 : 16 : 1000000000
df.style = 0;
df.digits = 2;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
// 0 : 24 : 10
df.style = 1;
df.digits = 100;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
// 0 : 7 : 1000000000000000000
df.style = 1;
df.digits = 10;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
// 0 : 7 : 1000000000000000000
df.style = 1;
df.digits = 2;
num2dec(&df, 1e25, &d);
dump_decimal(&d);
//0 : 7 : 1000000000000000000
df.style = 1;
df.digits = 10;
num2dec(&df, 0, &d);
dump_decimal(&d);
//
df.style = 0;
df.digits = 10;
num2dec(&df, 0, &d);
dump_decimal(&d);
//
df.style = 1;
df.digits = 0;
num2dec(&df, -0.0, &d);
dump_decimal(&d);
//
df.style = 0;
df.digits = 0;
num2dec(&df, -0.0, &d);
dump_decimal(&d);
//
df.style = 0;
df.digits = 10;
num2dec(&df, 0.125, &d);
dump_decimal(&d);
//
df.style = 1;
df.digits = 10;
num2dec(&df, 0.125, &d);
dump_decimal(&d);
//
df.style = 0;
df.digits = 4;
num2dec(&df, 0.00000125, &d);
dump_decimal(&d);
// s/b -9 1250
df.style = 1;
df.digits = 4;
num2dec(&df, 0.00000125, &d);
dump_decimal(&d);
// s/b -4 0
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df.style = 1;
df.digits = 6;
num2dec(&df, 0.0625, &d);
dump_decimal(&d);
// s/b -6 62500
df.style = 1;
df.digits = 6;
num2dec(&df, 1.125, &d);
dump_decimal(&d);
// s/b -6 1125000
df.style = 1;
df.digits = 6;
num2dec(&df, 1.0625, &d);
dump_decimal(&d);
// s/b -6 1062500
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}
pascal void fp68k_3(void *, void *, unsigned short) = 0xA9EB;
void test_fx2l(void) {
long double x;
long int l;
int i;
static long double data[] = {
1.25,
1.5,
1.75,
2.25,
2.5,
2.75,
-1.25,
-1.5,
-1.75,
-2.25,
-2.5,
-2.75,
};
x = inf(); // 1.0 / 0.0;
fp68k_3(&x, &l, 0x2810);
printf("fx2l(inf) = %lx\n", l);
x = -inf(); // -1.0 / 0.0;
fp68k_3(&x, &l, 0x2810);
printf("fx2l(-inf) = %lx\n", l);
x = nan(1); // -1.0 / 0.0;
fp68k_3(&x, &l, 0x2810);
printf("fx2l(nan) = %lx\n", l);
x = 1e21;
fp68k_3(&x, &l, 0x2810);
printf("fx2l(1e21) = %lx\n", l);
x = -1e21;
fp68k_3(&x, &l, 0x2810);
printf("fx2l(-1e21) = %lx\n", l);
setround(UPWARD);
for (i = 0; i < 12; ++i) {
x = data[i];
fp68k_3(&x, &l, 0x2810);
printf("fx2l(%f) = %ld\n", x, l);
}
setround(DOWNWARD);
for (i = 0; i < 12; ++i) {
x = data[i];
fp68k_3(&x, &l, 0x2810);
printf("fx2l(%f) = %ld\n", x, l);
}
setround(TONEAREST);
for (i = 0; i < 12; ++i) {
x = data[i];
fp68k_3(&x, &l, 0x2810);
printf("fx2l(%f) = %ld\n", x, l);
}
setround(TOWARDZERO);
for (i = 0; i < 12; ++i) {
x = data[i];
fp68k_3(&x, &l, 0x2810);
printf("fx2l(%f) = %ld\n", x, l);
}
}
int main(int argc, char **argv)
{
//extended x;
//decimal d;
//short index;
//short valid;
(void)argc;
(void)argv;
//index = 0;
//valid = 0;
//str2dec("1.125", &index, &d, &valid);
//x = dec2num(&d);
test_inf();
test_nan();
test_fxc2dec();
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test_fx2l();
return 0;
}