Commit ff9a24f6 authored by John R. Lenton's avatar John R. Lenton
Browse files

Merge remote-tracking branch 'upstream/master' into list_count

parents a58cf679 32f88410
......@@ -41,9 +41,20 @@ mp_obj_t str_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
int len = strlen(lhs_str);
if (start < 0) {
start = len + start;
if (start < 0) {
start = 0;
}
} else if (start > len) {
start = len;
}
if (stop <= 0) {
stop = len + stop;
// CPython returns empty string in such case
if (stop < 0) {
stop = start;
}
} else if (stop > len) {
stop = len;
}
return mp_obj_new_str(qstr_from_strn_copy(lhs_str + start, stop - start));
#endif
......
......@@ -49,6 +49,18 @@ static uint8_t *cache_get_addr_for_write(uint32_t flash_addr) {
return (uint8_t*)CACHE_MEM_START_ADDR + flash_addr - flash_sector_start;
}
static uint8_t *cache_get_addr_for_read(uint32_t flash_addr) {
uint32_t flash_sector_start;
uint32_t flash_sector_size;
uint32_t flash_sector_id = flash_get_sector_info(flash_addr, &flash_sector_start, &flash_sector_size);
if (cache_flash_sector_id == flash_sector_id) {
// in cache, copy from there
return (uint8_t*)CACHE_MEM_START_ADDR + flash_addr - flash_sector_start;
}
// not in cache, copy straight from flash
return (uint8_t*)flash_addr;
}
void storage_init(void) {
if (!is_initialised) {
cache_flash_sector_id = 0;
......@@ -131,8 +143,9 @@ bool storage_read_block(uint8_t *dest, uint32_t block) {
return true;
} else if (FLASH_PART1_START_BLOCK <= block && block < FLASH_PART1_START_BLOCK + FLASH_PART1_NUM_BLOCKS) {
// non-MBR block, just copy straight from flash
uint8_t *src = (uint8_t*)FLASH_MEM_START_ADDR + (block - FLASH_PART1_START_BLOCK) * BLOCK_SIZE;
// non-MBR block, get data from flash memory, possibly via cache
uint32_t flash_addr = FLASH_MEM_START_ADDR + (block - FLASH_PART1_START_BLOCK) * BLOCK_SIZE;
uint8_t *src = cache_get_addr_for_read(flash_addr);
memcpy(dest, src, BLOCK_SIZE);
return true;
......
......@@ -22,6 +22,11 @@ print(b"123"[0:])
print(b"123"[:0])
print(b"123"[:-3])
print(b"123"[:-4])
# Range check testing, don't segfault, please ;-)
print(b"123"[:1000000])
print(b"123"[1000000:])
print(b"123"[:-1000000])
print(b"123"[-1000000:])
# No IndexError!
print(b""[1:1])
print(b""[-1:-1])
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