88 widmask(p_cm)  in widmask()  argument
91 p_cm_t p_cm;  in widmask()
93 	return ((((1L<<(p_cm->cm_width-1))-1L)<<1)|1L);
97 cm_ini(p_cm)  in cm_ini()  argument
98 p_cm_t p_cm;  in cm_ini()
100 	p_cm->cm_reg = p_cm->cm_init;
104 cm_nxt(p_cm, ch)  in cm_nxt()  argument
105 p_cm_t p_cm;  in cm_nxt()
110 	uint32_t topbit = BITMASK(p_cm->cm_width-1);
112 	if (p_cm->cm_refin)
115 	p_cm->cm_reg ^= (uch << (p_cm->cm_width-8));
117 		if (p_cm->cm_reg & topbit)
118 			p_cm->cm_reg = (p_cm->cm_reg << 1) ^ p_cm->cm_poly;
120 			p_cm->cm_reg <<= 1;
122 		p_cm->cm_reg &= widmask(p_cm);
127 cm_blk(p_cm, blk_adr, blk_len)  in cm_blk()  argument
128 p_cm_t   p_cm;  in cm_blk()
133 		cm_nxt(p_cm, *blk_adr++);
137 cm_crc(p_cm)  in cm_crc()  argument
138 p_cm_t p_cm;  in cm_crc()
140 	if (p_cm->cm_refot)
141 		return (p_cm->cm_xorot ^ reflect(p_cm->cm_reg, p_cm->cm_width));
143 		return (p_cm->cm_xorot ^ p_cm->cm_reg);
147 cm_tab(p_cm, index)  in cm_tab()  argument
148 p_cm_t p_cm;  in cm_tab()
153 	uint32_t topbit = BITMASK(p_cm->cm_width-1);
156 	if (p_cm->cm_refin)
159 	r = inbyte << (p_cm->cm_width-8);
162 			r = (r << 1) ^ p_cm->cm_poly;
166 	if (p_cm->cm_refin)
167 		r = reflect(r, p_cm->cm_width);
169 	return (r & widmask(p_cm));