void
spe_load_float(struct spe_function *p, unsigned rT, float x)
{
- union {
- float f;
- unsigned u;
- } bits;
- bits.f = x;
- spe_ilhu(p, rT, bits.u >> 16);
- spe_iohl(p, rT, bits.u & 0xffff);
+ if (x == 0.0f) {
+ spe_il(p, rT, 0x0);
+ }
+ else if (x == 0.5f) {
+ spe_ilhu(p, rT, 0x3f00);
+ }
+ else if (x == 1.0f) {
+ spe_ilhu(p, rT, 0x3f80);
+ }
+ else if (x == -1.0f) {
+ spe_ilhu(p, rT, 0xbf80);
+ }
+ else {
+ union {
+ float f;
+ unsigned u;
+ } bits;
+ bits.f = x;
+ spe_ilhu(p, rT, bits.u >> 16);
+ spe_iohl(p, rT, bits.u & 0xffff);
+ }
}
void
spe_load_int(struct spe_function *p, unsigned rT, int i)
{
- spe_ilhu(p, rT, i >> 16);
- spe_iohl(p, rT, i & 0xffff);
+ if (-32768 <= i && i <= 32767) {
+ spe_il(p, rT, i);
+ }
+ else {
+ spe_ilhu(p, rT, i >> 16);
+ spe_iohl(p, rT, i & 0xffff);
+ }
+}
+
+
+void
+spe_splat(struct spe_function *p, unsigned rT, unsigned rA)
+{
+ spe_ila(p, rT, 66051);
+ spe_shufb(p, rT, rA, rA, rT);
}
extern void
spe_load_int(struct spe_function *p, unsigned rT, int i);
+/** Replicate word 0 of rA across rT. */
+extern void
+spe_splat(struct spe_function *p, unsigned rT, unsigned rA);
+
/** Complement/invert all bits in rT. */
extern void
spe_complement(struct spe_function *p, unsigned rT);