45 * The indented lines in the loop are instructions related to rounds processing.
87       // Save hash values for addition after rounds  in intel_sha256_step()
91       // Rounds 0-3  in intel_sha256_step()
100       // Rounds 4-7  in intel_sha256_step()
110       // Rounds 8-11  in intel_sha256_step()
120       // Rounds 12-15  in intel_sha256_step()
133       // Rounds 16-19  in intel_sha256_step()
144       // Rounds 20-23  in intel_sha256_step()
155       // Rounds 24-27  in intel_sha256_step()
166       // Rounds 28-31  in intel_sha256_step()
177       // Rounds 32-35  in intel_sha256_step()
188       // Rounds 36-39  in intel_sha256_step()
199       // Rounds 40-43  in intel_sha256_step()
210       // Rounds 44-47  in intel_sha256_step()
221       // Rounds 48-51  in intel_sha256_step()
232       // Rounds 52-55  in intel_sha256_step()
242       // Rounds 56-59  in intel_sha256_step()
252       // Rounds 60-63  in intel_sha256_step()