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Strip out features to allow minimum firmware sizes (#8645)

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Joel Challis 2020-04-01 21:06:22 +01:00 • committed by GitHub
parent c217186bea
commit 58a9c84d6b
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6 changed files with 30 additions and 11 deletions
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6
tmk_core/common/util.c
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@ -18,7 +18,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "util.h"
// bit population - return number of on-bit
uint8_t bitpop(uint8_t bits) {
__attribute__((noinline)) uint8_t bitpop(uint8_t bits) {
uint8_t c;
for (c = 0; bits; c++) bits &= bits - 1;
return c;
@ -42,7 +42,7 @@ uint8_t bitpop32(uint32_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) {
__attribute__((noinline)) uint8_t biton(uint8_t bits) {
uint8_t n = 0;
if (bits >> 4) {
bits >>= 4;
@ -105,7 +105,7 @@ uint8_t biton32(uint32_t bits) {
return n;
}
uint8_t bitrev(uint8_t bits) {
__attribute__((noinline)) uint8_t bitrev(uint8_t bits) {
bits = (bits & 0x0f) << 4 | (bits & 0xf0) >> 4;
bits = (bits & 0b00110011) << 2 | (bits & 0b11001100) >> 2;
bits = (bits & 0b01010101) << 1 | (bits & 0b10101010) >> 1;