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Rewrite layer action with layer_switch

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This commit is contained in:
tmk 2013-02-16 04:05:58 +09:00
parent 0142b571c4
commit e324fa2918
7 changed files with 148 additions and 112 deletions
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11
common/util.c
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@ -39,6 +39,7 @@ uint8_t bitpop16(uint16_t bits)
}
// 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)
{
uint8_t n = 0;
@ -47,3 +48,13 @@ uint8_t biton(uint8_t bits)
if (bits >> 1) { bits >>= 1; n += 1;}
return n;
}
uint8_t biton16(uint16_t bits)
{
uint8_t n = 0;
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;
}