feature (kernel): Optimized memory functions to use 64-bit operations where possible
This commit is contained in:
parent
0127a19d0f
commit
81e4f2abb2
|
@ -18,28 +18,59 @@
|
|||
|
||||
heap_T g_kernel_heap;
|
||||
|
||||
void memory_copy (void* source, void* destination, uint32_t num) {
|
||||
void memory_copy(void* source, void* destination, uint32_t num) {
|
||||
uint32_t num_64 = num / 8;
|
||||
uint64_t* src_64 = (uint64_t*)source;
|
||||
uint64_t* dst_64 = (uint64_t*)destination;
|
||||
|
||||
for (uint32_t i = 0; i < num_64; i++) {
|
||||
dst_64[i] = src_64[i];
|
||||
}
|
||||
|
||||
uint32_t num_8 = num % 8;
|
||||
uint8_t* src_8 = (uint8_t*)source;
|
||||
uint8_t* dst_8 = (uint8_t*)destination;
|
||||
|
||||
for (int i = 0; i < num; i++) {
|
||||
for (uint32_t i = num_64 * 8; i < num_8; i++) {
|
||||
dst_8[i] = src_8[i];
|
||||
}
|
||||
}
|
||||
|
||||
void memory_set (void* destination, uint8_t data, uint32_t num) {
|
||||
void memory_set(void* destination, uint8_t data, uint32_t num) {
|
||||
uint32_t num_64 = num / 8;
|
||||
uint64_t* dst_64 = (uint64_t*)destination;
|
||||
uint64_t data_64 = data;
|
||||
|
||||
data_64 |= (data_64 << 8) | (data_64 << 16) | (data_64 << 24) | (data_64 << 32) | (data_64 << 40) | (data_64 << 48) | (data_64 << 56);
|
||||
|
||||
for (uint32_t i = 0; i < num_64; i++) {
|
||||
dst_64[i] = data_64;
|
||||
}
|
||||
|
||||
uint32_t num_8 = num % 8;
|
||||
uint8_t* dst_8 = (uint8_t*)destination;
|
||||
|
||||
for (int i = 0; i < num; i++) {
|
||||
for (uint32_t i = num_64 * 8; i < num_8; i++) {
|
||||
dst_8[i] = data;
|
||||
}
|
||||
}
|
||||
|
||||
bool memory_compare (void* a, void* b, uint32_t num) {
|
||||
bool memory_compare(void* a, void* b, uint32_t num) {
|
||||
uint32_t num_64 = num / 8;
|
||||
uint64_t* a_64 = (uint64_t*)a;
|
||||
uint64_t* b_64 = (uint64_t*)b;
|
||||
|
||||
for (uint32_t i = num_64; i < num_64; i++) {
|
||||
if (a_64[i] != b_64[i]) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t num_8 = num % 8;
|
||||
uint8_t* a_8 = (uint8_t*)a;
|
||||
uint8_t* b_8 = (uint8_t*)b;
|
||||
|
||||
for (int i = 0; i < num; i++) {
|
||||
for (uint32_t i = num_64 * 8; i < num_8; i++) {
|
||||
if (a_8[i] != b_8[i]) {
|
||||
return false;
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue