#include <stdio.h>
/* Test BFP multiply and add/sub 32/64-bit. There are no such insns
working with 128-bit data */
void maebr(float v1, float v2, float v3)
{
float r1 = v1;
__asm__ volatile("maebr %[r1],%[r3],%[r2]"
: [r1]"+f"(r1) : [r2]"f"(v2), [r3]"f"(v3));
printf("maebr %f * %f + %f -> %f\n", v2, v3, v1, r1);
}
void madbr(double v1, double v2, double v3)
{
double r1 = v1;
__asm__ volatile("madbr %[r1],%[r3],%[r2]"
: [r1]"+f"(r1) : [r2]"f"(v2), [r3]"f"(v3));
printf("madbr %f * %f + %f -> %f\n", v2, v3, v1, r1);
}
void msebr(float v1, float v2, float v3)
{
float r1 = v1;
__asm__ volatile("msebr %[r1],%[r3],%[r2]"
: [r1]"+f"(r1) : [r2]"f"(v2), [r3]"f"(v3));
printf("msebr %f * %f - %f -> %f\n", v2, v3, v1, r1);
}
void msdbr(double v1, double v2, double v3)
{
double r1 = v1;
__asm__ volatile("msdbr %[r1],%[r3],%[r2]"
: [r1]"+f"(r1) : [r2]"f"(v2), [r3]"f"(v3));
printf("msdbr %f * %f - %f -> %f\n", v2, v3, v1, r1);
}
int main(void)
{
// multiply and add
maebr(10.5f, 20.25, 3.0); // 4 byte values
madbr(-10.5, 42.75, -2.0); // 8 byte values
// multiply and sub
msebr(10.5f, 20.25, 3.0); // 4 byte values
msdbr(-10.5, 42.75, -2.0); // 8 byte values
return 0;
}