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#include "Rts.h"
#include "MachDeps.h"
StgWord64
hs_pdep64(StgWord64 src, StgWord64 mask)
{
uint64_t m0, mk, mp, mv, t;
uint64_t array[6];
m0 = mask;
mk = ~mask << 1;
for (int i = 0; i < 6 ; i++) {
mp = mk ^ (mk << 1);
mp = mp ^ (mp << 2);
mp = mp ^ (mp << 4);
mp = mp ^ (mp << 8);
mp = mp ^ (mp << 16);
mp = mp ^ (mp << 32);
mv = mp & mask;
array[i] = mv;
mask = (mask ^ mv) | (mv >> (1 << i));
mk = mk & ~mp;
}
for (int i = 5; i >= 0; i--) {
mv = array[i];
t = src << (1 << i);
src = (src & ~ mv) | (t & mv);
}
return src & m0;
}
StgWord
hs_pdep32(StgWord src, StgWord mask)
{
uint32_t m0, mk, mp, mv, t;
uint32_t array[5];
m0 = mask;
mk = ~mask << 1;
for (int i = 0; i < 5 ; i++) {
mp = mk ^ (mk << 1);
mp = mp ^ (mp << 2);
mp = mp ^ (mp << 4);
mp = mp ^ (mp << 8);
mp = mp ^ (mp << 16);
mv = mp & mask;
array[i] = mv;
mask = (mask ^ mv) | (mv >> (1 << i));
mk = mk & ~mp;
}
for (int i = 4; i >= 0; i--) {
mv = array[i];
t = src << (1 << i);
src = (src & ~ mv) | (t & mv);
}
return src & m0;
}
StgWord
hs_pdep16(StgWord src, StgWord mask)
{
uint16_t m0, mk, mp, mv, t;
uint16_t array[4];
m0 = mask;
mk = ~mask << 1;
for (int i = 0; i < 4 ; i++) {
mp = mk ^ (mk << 1);
mp = mp ^ (mp << 2);
mp = mp ^ (mp << 4);
mp = mp ^ (mp << 8);
mv = mp & mask;
array[i] = mv;
mask = (mask ^ mv) | (mv >> (1 << i));
mk = mk & ~mp;
}
for (int i = 3; i >= 0; i--) {
mv = array[i];
t = src << (1 << i);
src = (src & ~ mv) | (t & mv);
}
return src & m0;
}
StgWord
hs_pdep8(StgWord src, StgWord mask)
{
uint8_t m0, mk, mp, mv, t;
uint8_t array[3];
m0 = mask;
mk = ~mask << 1;
for (int i = 0; i < 3 ; i++) {
mp = mk ^ (mk << 1);
mp = mp ^ (mp << 2);
mp = mp ^ (mp << 4);
mv = mp & mask;
array[i] = mv;
mask = (mask ^ mv) | (mv >> (1 << i));
mk = mk & ~mp;
}
for (int i = 2; i >= 0; i--) {
mv = array[i];
t = src << (1 << i);
src = (src & ~ mv) | (t & mv);
}
return src & m0;
}
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