diff options
Diffstat (limited to 'src/cortexelf-v1/ao_flip_bits.5c')
| -rw-r--r-- | src/cortexelf-v1/ao_flip_bits.5c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/src/cortexelf-v1/ao_flip_bits.5c b/src/cortexelf-v1/ao_flip_bits.5c index 055d5299..cd5507cc 100644 --- a/src/cortexelf-v1/ao_flip_bits.5c +++ b/src/cortexelf-v1/ao_flip_bits.5c @@ -1,19 +1,24 @@ #!/usr/bin/nickle -int flip_bits(int a) +int flip_bits(int a, int n) { int result = 0; - for (int pos = 0; pos < 8; pos++) + for (int pos = 0; pos < n; pos++) if ((a & (1 << pos)) != 0) - result |= (1 << (7 - pos)); + result |= (1 << (n - 1 - pos)); return result; } -printf ("static const uint8_t ao_flip_bits[256] = {\n"); +void print_flip_bits(string name, int n) { + printf ("static const uint8_t %s_%d[%d] = {\n", name, n, 1 << n); -for (int i = 0; i < 256; i++) { - printf (" 0x%02x,", flip_bits(i)); - if ((i & 0xf) == 0xf) - printf("\n"); + for (int i = 0; i < 1 << n; i++) { + printf (" 0x%02x,", flip_bits(i, n)); + if ((i & 0xf) == 0xf) + printf("\n"); + } + printf("};\n"); } -printf("};\n"); + +print_flip_bits("ao_flip_bits", 8); +print_flip_bits("ao_flip_bits", 2); |