// Module instances modified by /home/rws/workarea/rf/sw/bbplayer/tools/necprimfix // // 8 instances of ad01d1h changed to j_ad01. // 6 instances of an02d1h changed to j_an02. // 2 instances of fn05d2 changed to j_fn05. // 8 instances of in01d2 changed to j_in01. // 2 instances of or02d2 changed to j_or02. // //////////////////////////////////////////////////////////////////////// // // Project Reality // // module: bl_norm // description: Generate norm to shift down greater delta z // for blend unit. // // designer: Phil Gossett // date: 8/14/94 // //////////////////////////////////////////////////////////////////////// module bl_norm (new, old, norma, normb); input [3:0] new; input [3:0] old; output [2:0] norma; output [2:0] normb; wire [3:0] n_l; wire [3:0] o_l; wire [4:0] diffa; wire [4:0] diffb; wire [2:0] ca; wire [2:0] cb; j_in01 inn0 (.i(new[0]), .zn(n_l[0])); j_in01 inn1 (.i(new[1]), .zn(n_l[1])); j_in01 inn2 (.i(new[2]), .zn(n_l[2])); j_in01 inn3 (.i(new[3]), .zn(n_l[3])); j_in01 ino0 (.i(old[0]), .zn(o_l[0])); j_in01 ino1 (.i(old[1]), .zn(o_l[1])); j_in01 ino2 (.i(old[2]), .zn(o_l[2])); j_in01 ino3 (.i(old[3]), .zn(o_l[3])); j_ad01 dfa0 (.ci( 1'b1), .a(new[0]), .b(o_l[0]), .s(diffa[0]), .co(ca[0])); j_ad01 dfa1 (.ci(ca[0]), .a(new[1]), .b(o_l[1]), .s(diffa[1]), .co(ca[1])); j_ad01 dfa2 (.ci(ca[1]), .a(new[2]), .b(o_l[2]), .s(diffa[2]), .co(ca[2])); j_ad01 dfa3 (.ci(ca[2]), .a(new[3]), .b(o_l[3]), .s(diffa[3]), .co(diffa[4])); // inv j_ad01 dfb0 (.ci( 1'b1), .a(old[0]), .b(n_l[0]), .s(diffb[0]), .co(cb[0])); j_ad01 dfb1 (.ci(cb[0]), .a(old[1]), .b(n_l[1]), .s(diffb[1]), .co(cb[1])); j_ad01 dfb2 (.ci(cb[1]), .a(old[2]), .b(n_l[2]), .s(diffb[2]), .co(cb[2])); j_ad01 dfb3 (.ci(cb[2]), .a(old[3]), .b(n_l[3]), .s(diffb[3]), .co(diffb[4])); // inv j_or02 oraa (.a1(diffa[2]), .a2(diffa[3]), .z(ora)); j_fn05 anaa (.a1(diffa[4]), .b1(ora), .zn(ana)); j_an02 ana2 (.a1(diffa[4]), .a2(ora), .z(norma[2])); j_an02 ana1 (.a1(diffa[1]), .a2(ana), .z(norma[1])); j_an02 ana0 (.a1(diffa[0]), .a2(ana), .z(norma[0])); j_or02 orbb (.a1(diffb[2]), .a2(diffb[3]), .z(orb)); j_fn05 anbb (.a1(diffb[4]), .b1(orb), .zn(anb)); j_an02 anb2 (.a1(diffb[4]), .a2(orb), .z(normb[2])); j_an02 anb1 (.a1(diffb[1]), .a2(anb), .z(normb[1])); j_an02 anb0 (.a1(diffb[0]), .a2(anb), .z(normb[0])); endmodule // bl_norm