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Refine ACT_LAYER and ACT_LAYER_TAP

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- Remove ACT_LAYER_BITOP
This commit is contained in:
tmk
2013-04-02 16:09:43 +09:00
parent 10f33a3e48
commit cc8e66754b
8 changed files with 268 additions and 320 deletions
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19
common/util.c
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@@ -38,6 +38,14 @@ uint8_t bitpop16(uint16_t bits)
return c;
}
uint8_t bitpop32(uint32_t bits)
{
uint8_t c;
for (c = 0; bits; c++)
bits &= bits - 1;
return c;
}
// most significant on-bit - return highest location of on-bit
// NOTE: return 0 when bit0 is on or all bits are off
uint8_t biton(uint8_t bits)
@@ -58,3 +66,14 @@ uint8_t biton16(uint16_t bits)
if (bits >> 1) { bits >>= 1; n += 1;}
return n;
}
uint8_t biton32(uint32_t bits)
{
uint8_t n = 0;
if (bits >>16) { bits >>=16; n +=16;}
if (bits >> 8) { bits >>= 8; n += 8;}
if (bits >> 4) { bits >>= 4; n += 4;}
if (bits >> 2) { bits >>= 2; n += 2;}
if (bits >> 1) { bits >>= 1; n += 1;}
return n;
}