sha1word
sha1word a = ctx->state[0];
sha1word b = ctx->state[1];
sha1word c = ctx->state[2];
sha1word d = ctx->state[3];
sha1word e = ctx->state[4];
sha1word w[16];
sha1word w_0, w_1, w_2, w_3, w_4, w_5, w_6, w_7;
sha1word w_8, w_9, w_10, w_11, w_12, w_13, w_14, w_15;