strgbaoffseti.v
12 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
// Module instances modified by /home/rws/workarea/rf/sw/bbplayer/tools/necprimfix
//
// 4 instances of ad01d1 changed to j_ad01.
// 1 instance of an02d1 changed to j_an02.
// 1 instance of mx21d1 changed to j_mx21.
// 1 instance of ni01d3 changed to j_ni01.
//
/**************************************************************************
* *
* Copyright (C) 1994, Silicon Graphics, Inc. *
* *
* These coded instructions, statements, and computer programs contain *
* unpublished proprietary information of Silicon Graphics, Inc., and *
* are protected by Federal copyright law. They may not be disclosed *
* to third parties or copied or duplicated in any form, in whole or *
* in part, without the prior written consent of Silicon Graphics, Inc. *
* *
*************************************************************************/
// $Id: strgbaoffseti.v,v 1.2 2002/11/13 02:11:41 rws Exp $
/* Project Reality
MDP
Created by Mike M. Cai 5/24/94
*/
module strgbaoffseti( att_data_out,
att_data_in, dx, x_offset,
dy, y_offset);
output [8:0] att_data_out; // 9 bits integer
input [10:0] att_data_in; // 10 bits integer, 2 bits fraction
input [12:0] dx, dy; // 10 bits integer, bits fraction
input [1:0] x_offset, y_offset; // 2 bits of fractions
wire [12:0] x_prod0, x_prod1, y_prod0, y_prod1;
wire [12:0] add_prod1_s, add_prod1_co;
wire [12:0] add_prod2_s, add_prod2_co;
wire [12:0] add_prod3_s, add_prod3_co;
wire [12:0] sum0, sum0_co, sum1, sum1_co;
wire [12:0] sum; // 10 bits integer, 4 bits fraction
wire [8:0] att_data_out;
j_an02 // dx partial product one
x_prod0_0(.z(x_prod0[0]), .a1(dx[0]), .a2(x_offset[0])),
x_prod0_1(.z(x_prod0[1]), .a1(dx[1]), .a2(x_offset[0])),
x_prod0_2(.z(x_prod0[2]), .a1(dx[2]), .a2(x_offset[0])),
x_prod0_3(.z(x_prod0[3]), .a1(dx[3]), .a2(x_offset[0])),
x_prod0_4(.z(x_prod0[4]), .a1(dx[4]), .a2(x_offset[0])),
x_prod0_5(.z(x_prod0[5]), .a1(dx[5]), .a2(x_offset[0])),
x_prod0_6(.z(x_prod0[6]), .a1(dx[6]), .a2(x_offset[0])),
x_prod0_7(.z(x_prod0[7]), .a1(dx[7]), .a2(x_offset[0])),
x_prod0_8(.z(x_prod0[8]), .a1(dx[8]), .a2(x_offset[0])),
x_prod0_9(.z(x_prod0[9]), .a1(dx[9]), .a2(x_offset[0])),
x_prod0_10(.z(x_prod0[10]), .a1(dx[10]), .a2(x_offset[0])),
x_prod0_11(.z(x_prod0[11]), .a1(dx[11]), .a2(x_offset[0])),
x_prod0_12(.z(x_prod0[12]), .a1(dx[12]), .a2(x_offset[0])),
// dx partial product two
x_prod1_1(.z(x_prod1[1]), .a1(dx[0]), .a2(x_offset[1])),
x_prod1_2(.z(x_prod1[2]), .a1(dx[1]), .a2(x_offset[1])),
x_prod1_3(.z(x_prod1[3]), .a1(dx[2]), .a2(x_offset[1])),
x_prod1_4(.z(x_prod1[4]), .a1(dx[3]), .a2(x_offset[1])),
x_prod1_5(.z(x_prod1[5]), .a1(dx[4]), .a2(x_offset[1])),
x_prod1_6(.z(x_prod1[6]), .a1(dx[5]), .a2(x_offset[1])),
x_prod1_7(.z(x_prod1[7]), .a1(dx[6]), .a2(x_offset[1])),
x_prod1_8(.z(x_prod1[8]), .a1(dx[7]), .a2(x_offset[1])),
x_prod1_9(.z(x_prod1[9]), .a1(dx[8]), .a2(x_offset[1])),
x_prod1_10(.z(x_prod1[10]), .a1(dx[9]), .a2(x_offset[1])),
x_prod1_11(.z(x_prod1[11]), .a1(dx[10]), .a2(x_offset[1])),
x_prod1_12(.z(x_prod1[12]), .a1(dx[11]), .a2(x_offset[1])),
// dy partial product
y_prod0_0(.z(y_prod0[0]), .a1(dy[0]), .a2(y_offset[0])),
y_prod0_1(.z(y_prod0[1]), .a1(dy[1]), .a2(y_offset[0])),
y_prod0_2(.z(y_prod0[2]), .a1(dy[2]), .a2(y_offset[0])),
y_prod0_3(.z(y_prod0[3]), .a1(dy[3]), .a2(y_offset[0])),
y_prod0_4(.z(y_prod0[4]), .a1(dy[4]), .a2(y_offset[0])),
y_prod0_5(.z(y_prod0[5]), .a1(dy[5]), .a2(y_offset[0])),
y_prod0_6(.z(y_prod0[6]), .a1(dy[6]), .a2(y_offset[0])),
y_prod0_7(.z(y_prod0[7]), .a1(dy[7]), .a2(y_offset[0])),
y_prod0_8(.z(y_prod0[8]), .a1(dy[8]), .a2(y_offset[0])),
y_prod0_9(.z(y_prod0[9]), .a1(dy[9]), .a2(y_offset[0])),
y_prod0_10(.z(y_prod0[10]), .a1(dy[10]), .a2(y_offset[0])),
y_prod0_11(.z(y_prod0[11]), .a1(dy[11]), .a2(y_offset[0])),
y_prod0_12(.z(y_prod0[12]), .a1(dy[12]), .a2(y_offset[0])),
// dy partial product two
y_prod1_1(.z(y_prod1[1]), .a1(dy[0]), .a2(y_offset[1])),
y_prod1_2(.z(y_prod1[2]), .a1(dy[1]), .a2(y_offset[1])),
y_prod1_3(.z(y_prod1[3]), .a1(dy[2]), .a2(y_offset[1])),
y_prod1_4(.z(y_prod1[4]), .a1(dy[3]), .a2(y_offset[1])),
y_prod1_5(.z(y_prod1[5]), .a1(dy[4]), .a2(y_offset[1])),
y_prod1_6(.z(y_prod1[6]), .a1(dy[5]), .a2(y_offset[1])),
y_prod1_7(.z(y_prod1[7]), .a1(dy[6]), .a2(y_offset[1])),
y_prod1_8(.z(y_prod1[8]), .a1(dy[7]), .a2(y_offset[1])),
y_prod1_9(.z(y_prod1[9]), .a1(dy[8]), .a2(y_offset[1])),
y_prod1_10(.z(y_prod1[10]), .a1(dy[9]), .a2(y_offset[1])),
y_prod1_11(.z(y_prod1[11]), .a1(dy[10]), .a2(y_offset[1])),
y_prod1_12(.z(y_prod1[12]), .a1(dy[11]), .a2(y_offset[1]));
j_ad01
// first stage adders
add_prod1_0(.s(add_prod1_s[0]), .co(add_prod1_co[1]),
.a(x_prod0[0]), .b(1'h0), .ci(y_prod0[0])),
add_prod1_1(.s(add_prod1_s[1]), .co(add_prod1_co[2]),
.a(x_prod0[1]), .b(x_prod1[1]), .ci(y_prod0[1])),
add_prod1_2(.s(add_prod1_s[2]), .co(add_prod1_co[3]),
.a(x_prod0[2]), .b(x_prod1[2]), .ci(y_prod0[2])),
add_prod1_3(.s(add_prod1_s[3]), .co(add_prod1_co[4]),
.a(x_prod0[3]), .b(x_prod1[3]), .ci(y_prod0[3])),
add_prod1_4(.s(add_prod1_s[4]), .co(add_prod1_co[5]),
.a(x_prod0[4]), .b(x_prod1[4]), .ci(y_prod0[4])),
add_prod1_5(.s(add_prod1_s[5]), .co(add_prod1_co[6]),
.a(x_prod0[5]), .b(x_prod1[5]), .ci(y_prod0[5])),
add_prod1_6(.s(add_prod1_s[6]), .co(add_prod1_co[7]),
.a(x_prod0[6]), .b(x_prod1[6]), .ci(y_prod0[6])),
add_prod1_7(.s(add_prod1_s[7]), .co(add_prod1_co[8]),
.a(x_prod0[7]), .b(x_prod1[7]), .ci(y_prod0[7])),
add_prod1_8(.s(add_prod1_s[8]), .co(add_prod1_co[9]),
.a(x_prod0[8]), .b(x_prod1[8]), .ci(y_prod0[8])),
add_prod1_9(.s(add_prod1_s[9]), .co(add_prod1_co[10]),
.a(x_prod0[9]), .b(x_prod1[9]), .ci(y_prod0[9])),
add_prod1_10(.s(add_prod1_s[10]), .co(add_prod1_co[11]),
.a(x_prod0[10]), .b(x_prod1[10]), .ci(y_prod0[10])),
add_prod1_11(.s(add_prod1_s[11]), .co(add_prod1_co[12]),
.a(x_prod0[11]), .b(x_prod1[11]), .ci(y_prod0[11])),
add_prod1_12(.s(add_prod1_s[12]),/* .co(add_prod1_co[13]),*/
.a(x_prod0[12]), .b(x_prod1[12]), .ci(y_prod0[12])),
// second stage adder
// add_prod2_0(.s(add_prod2_s[0]), .co(add_prod2_co[1]),
// .a(att_data_in[-2], .b(y_prod1[0]), .ci(add_prod1_co[0])),
add_prod2_1(.s(add_prod2_s[1]), .co(add_prod2_co[2]),
.a(1'h0), .b(y_prod1[1]), .ci(add_prod1_co[1])),
add_prod2_2(.s(add_prod2_s[2]), .co(add_prod2_co[3]),
.a(att_data_in[0]), .b(y_prod1[2]), .ci(add_prod1_co[2])),
add_prod2_3(.s(add_prod2_s[3]), .co(add_prod2_co[4]),
.a(att_data_in[1]), .b(y_prod1[3]), .ci(add_prod1_co[3])),
add_prod2_4(.s(add_prod2_s[4]), .co(add_prod2_co[5]),
.a(att_data_in[2]), .b(y_prod1[4]), .ci(add_prod1_co[4])),
add_prod2_5(.s(add_prod2_s[5]), .co(add_prod2_co[6]),
.a(att_data_in[3]), .b(y_prod1[5]), .ci(add_prod1_co[5])),
add_prod2_6(.s(add_prod2_s[6]), .co(add_prod2_co[7]),
.a(att_data_in[4]), .b(y_prod1[6]), .ci(add_prod1_co[6])),
add_prod2_7(.s(add_prod2_s[7]), .co(add_prod2_co[8]),
.a(att_data_in[5]), .b(y_prod1[7]), .ci(add_prod1_co[7])),
add_prod2_8(.s(add_prod2_s[8]), .co(add_prod2_co[9]),
.a(att_data_in[6]), .b(y_prod1[8]), .ci(add_prod1_co[8])),
add_prod2_9(.s(add_prod2_s[9]), .co(add_prod2_co[10]),
.a(att_data_in[7]), .b(y_prod1[9]), .ci(add_prod1_co[9])),
add_prod2_10(.s(add_prod2_s[10]), .co(add_prod2_co[11]),
.a(att_data_in[8]), .b(y_prod1[10]), .ci(add_prod1_co[10])),
add_prod2_11(.s(add_prod2_s[11]), .co(add_prod2_co[12]),
.a(att_data_in[9]), .b(y_prod1[11]), .ci(add_prod1_co[11])),
add_prod2_12(.s(add_prod2_s[12]), // .co(add_prod2_co[13]),
.a(att_data_in[10]), .b(y_prod1[12]), .ci(add_prod1_co[12]));
// third stage adder
// add_prod3_0(.s(add_prod3_s[0]), .co(add_prod3_co[1]),
// .a(add_prod2_co[0]), .b(add_prod1_s[0]), .ci(add_prod2_s[0])),
assign add_prod3_s[0] = add_prod1_s[0];
assign add_prod3_co[1] = 1'h0;
j_ad01
add_prod3_1(.s(add_prod3_s[1]), .co(add_prod3_co[2]),
.a(1'h0), .b(add_prod1_s[1]), .ci(add_prod2_s[1])),
add_prod3_2(.s(add_prod3_s[2]), .co(add_prod3_co[3]),
.a(add_prod2_co[2]), .b(add_prod1_s[2]), .ci(add_prod2_s[2])),
add_prod3_3(.s(add_prod3_s[3]), .co(add_prod3_co[4]),
.a(add_prod2_co[3]), .b(add_prod1_s[3]), .ci(add_prod2_s[3])),
add_prod3_4(.s(add_prod3_s[4]), .co(add_prod3_co[5]),
.a(add_prod2_co[4]), .b(add_prod1_s[4]), .ci(add_prod2_s[4])),
add_prod3_5(.s(add_prod3_s[5]), .co(add_prod3_co[6]),
.a(add_prod2_co[5]), .b(add_prod1_s[5]), .ci(add_prod2_s[5])),
add_prod3_6(.s(add_prod3_s[6]), .co(add_prod3_co[7]),
.a(add_prod2_co[6]), .b(add_prod1_s[6]), .ci(add_prod2_s[6])),
add_prod3_7(.s(add_prod3_s[7]), .co(add_prod3_co[8]),
.a(add_prod2_co[7]), .b(add_prod1_s[7]), .ci(add_prod2_s[7])),
add_prod3_8(.s(add_prod3_s[8]), .co(add_prod3_co[9]),
.a(add_prod2_co[8]), .b(add_prod1_s[8]), .ci(add_prod2_s[8])),
add_prod3_9(.s(add_prod3_s[9]), .co(add_prod3_co[10]),
.a(add_prod2_co[9]), .b(add_prod1_s[9]), .ci(add_prod2_s[9])),
add_prod3_10(.s(add_prod3_s[10]), .co(add_prod3_co[11]),
.a(add_prod2_co[10]), .b(add_prod1_s[10]), .ci(add_prod2_s[10])),
add_prod3_11(.s(add_prod3_s[11]), .co(add_prod3_co[12]),
.a(add_prod2_co[11]), .b(add_prod1_s[11]), .ci(add_prod2_s[11])),
add_prod3_12(.s(add_prod3_s[12]), //.co(add_prod3_co[13]),
.a(add_prod2_co[12]), .b(add_prod1_s[12]), .ci(add_prod2_s[12]));
// Carry select adder
assign sum[0] = add_prod3_s[0];
assign sum[1] = add_prod3_s[1];
j_ad01
sum2(.s(sum[2]), .co(sum0_co[3]),
.a(add_prod3_s[2]), .b(add_prod3_co[2]), .ci(1'h0)),
sum3(.s(sum[3]), .co(sum0_co[4]),
.a(add_prod3_s[3]), .b(add_prod3_co[3]), .ci(sum0_co[3])),
sum4(.s(sum[4]), .co(sum0_co[5]),
.a(add_prod3_s[4]), .b(add_prod3_co[4]), .ci(sum0_co[4])),
sum5(.s(sum[5]), .co(sum0_co[6]),
.a(add_prod3_s[5]), .b(add_prod3_co[5]), .ci(sum0_co[5])),
sum6(.s(sum[6]), .co(sum0_co[7]),
.a(add_prod3_s[6]), .b(add_prod3_co[6]), .ci(sum0_co[6]));
j_ni01
carry_sel(.z(sel_carry), .i(sum0_co[7]));
j_ad01
sum7_0(.s(sum0[7]), .co(sum0_co[8]),
.a(add_prod3_s[7]), .b(add_prod3_co[7]), .ci(1'h0)),
sum7_1(.s(sum1[7]), .co(sum1_co[8]),
.a(add_prod3_s[7]), .b(add_prod3_co[7]), .ci(1'h1)),
sum8_0(.s(sum0[8]), .co(sum0_co[9]),
.a(add_prod3_s[8]), .b(add_prod3_co[8]), .ci(sum0_co[8])),
sum8_1(.s(sum1[8]), .co(sum1_co[9]),
.a(add_prod3_s[8]), .b(add_prod3_co[8]), .ci(sum1_co[8])),
sum9_0(.s(sum0[9]), .co(sum0_co[10]),
.a(add_prod3_s[9]), .b(add_prod3_co[9]), .ci(sum0_co[9])),
sum9_1(.s(sum1[9]), .co(sum1_co[10]),
.a(add_prod3_s[9]), .b(add_prod3_co[9]), .ci(sum1_co[9])),
sum10_0(.s(sum0[10]), .co(sum0_co[11]),
.a(add_prod3_s[10]), .b(add_prod3_co[10]), .ci(sum0_co[10])),
sum10_1(.s(sum1[10]), .co(sum1_co[11]),
.a(add_prod3_s[10]), .b(add_prod3_co[10]), .ci(sum1_co[10])),
sum11_0(.s(sum0[11]), .co(sum0_co[12]),
.a(add_prod3_s[11]), .b(add_prod3_co[11]), .ci(sum0_co[11])),
sum11_1(.s(sum1[11]), .co(sum1_co[12]),
.a(add_prod3_s[11]), .b(add_prod3_co[11]), .ci(sum1_co[11])),
sum12_0(.s(sum0[12]), //.co(sum0_co[9]),
.a(add_prod3_s[12]), .b(add_prod3_co[12]), .ci(sum0_co[12])),
sum12_1(.s(sum1[12]), //.co(sum1_co[9]),
.a(add_prod3_s[12]), .b(add_prod3_co[12]), .ci(sum1_co[12]));
j_mx21
sum7(.z(sum[7]), .i0(sum0[7]), .i1(sum1[7]), .s(sel_carry)),
sum8(.z(sum[8]), .i0(sum0[8]), .i1(sum1[8]), .s(sel_carry)),
sum9(.z(sum[9]), .i0(sum0[9]), .i1(sum1[9]), .s(sel_carry)),
sum10(.z(sum[10]), .i0(sum0[10]), .i1(sum1[10]), .s(sel_carry)),
sum11(.z(sum[11]), .i0(sum0[11]), .i1(sum1[11]), .s(sel_carry)),
sum12(.z(sum[12]), .i0(sum0[12]), .i1(sum1[12]), .s(sel_carry));
assign att_data_out = sum[12:4];
endmodule // strgbaoffseti