For loading the rag end of a string, the branchiness looks like while (len-- > 0) { /* load */ } or switch (len) { /* 8 cases */ } https://en.wikipedia.

For loading the rag end of a string, the branchiness looks like while (len-- > 0) { /* load */ } or switch (len) { /* 8 cases */ } https://en.wikipedia.org/wiki/Duff%27s_device https://en.wikipedia.org/wiki/Duff%27s_device