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[/] [apbtoaes128/] [trunk/] [pli/] [bfm_ecb/] [aes_bfm_key_generation_dma_ecb.h] - Blame information for rev 4

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//////////////////////////////////////////////////////////////////
////
////
////    AES CORE BLOCK
////
////
////
//// This file is part of the APB to AES128 project
////
//// http://www.opencores.org/cores/apbtoaes128/
////
////
////
//// Description
////
//// Implementation of APB IP core according to
////
//// aes128_spec IP core specification document.
////
////
////
//// To Do: Things are right here but always all block can suffer changes
////
////
////
////
////
//// Author(s): - Felipe Fernandes Da Costa, fefe2560@gmail.com
////
///////////////////////////////////////////////////////////////// 
////
////
//// Copyright (C) 2009 Authors and OPENCORES.ORG
////
////
////
//// This source file may be used and distributed without
////
//// restriction provided that this copyright statement is not
////
//// removed from the file and that any derivative work contains
//// the original copyright notice and the associated disclaimer.
////
////
//// This source file is free software; you can redistribute it
////
//// and/or modify it under the terms of the GNU Lesser General
////
//// Public License as published by the Free Software Foundation;
//// either version 2.1 of the License, or (at your option) any
////
//// later version.
////
////
////
//// This source is distributed in the hope that it will be
////
//// useful, but WITHOUT ANY WARRANTY; without even the implied
////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
////
//// PURPOSE. See the GNU Lesser General Public License for more
//// details.
////
////
////
//// You should have received a copy of the GNU Lesser General
////
//// Public License along with this source; if not, download it
////
//// from http://www.opencores.org/lgpl.shtml
////
////
///////////////////////////////////////////////////////////////////
static int aes_bfm_key_generation_dma_ecb_calltf(char*user_data)
{
 
        vpiHandle PRESETn = vpi_handle_by_name("AES_GLADIC_tb.PRESETn", NULL);
        vpiHandle PWDATA = vpi_handle_by_name("AES_GLADIC_tb.PWDATA", NULL);
        vpiHandle PENABLE = vpi_handle_by_name("AES_GLADIC_tb.PENABLE", NULL);
        vpiHandle PSEL = vpi_handle_by_name("AES_GLADIC_tb.PSEL", NULL);
        vpiHandle PWRITE = vpi_handle_by_name("AES_GLADIC_tb.PWRITE", NULL);
        vpiHandle PADDR = vpi_handle_by_name("AES_GLADIC_tb.PADDR", NULL);
        vpiHandle PRDATA = vpi_handle_by_name("AES_GLADIC_tb.PRDATA", NULL);
        vpiHandle PREADY = vpi_handle_by_name("AES_GLADIC_tb.PREADY", NULL);
        vpiHandle PSLVERR = vpi_handle_by_name("AES_GLADIC_tb.PSLVERR", NULL);
        vpiHandle int_ccf = vpi_handle_by_name("AES_GLADIC_tb.int_ccf", NULL);
        vpiHandle int_err = vpi_handle_by_name("AES_GLADIC_tb.int_err", NULL);
        vpiHandle dma_req_wr = vpi_handle_by_name("AES_GLADIC_tb.dma_req_wr", NULL);
        vpiHandle dma_req_rd = vpi_handle_by_name("AES_GLADIC_tb.dma_req_rd", NULL);
 
        std::random_device rd;
        std::uniform_int_distribution<long int> data_in(0,4294967295);
 
        v_ecb.format=vpiIntVal;
 
        vpi_get_value(PRESETn, &v_ecb);
 
 
        //printf("%i\n",STATE);
 
 
        if(type_bfm == ECB_KEY_GEN_DMA && v_ecb.value.integer == 1)
        {
 
                switch(STATE)
                {
 
                  case IDLE:
 
                                if(PACKETS_GENERATED >= MAX_ITERATIONS)
                                {
 
                                        STATE = IDLE;
                                        type_bfm = 0;
 
                                }else
                                {
                                        STATE = WRITE;
 
                                        counter = 0;
 
 
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
                                        v_ecb.value.integer = vector_address[0];
                                        vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
                                }
 
                  break;
 
                  case WRITE:
                                if(counter == 0)
                                {
 
 
                                        counter_write++;
                                        counter++;
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
 
                                }else if(counter == 1)
                                {
 
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
 
 
                                        if(counter_write < 9)
                                        {
 
                                                v_ecb.value.integer = vector_address[counter_write];
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                                t_ecb.type = vpiScaledRealTime;
                                                t_ecb.real = 0;
                                                v_ecb.format=vpiIntVal;
 
                                                if(FIPS_ENABLE == FIPS)
                                                {
 
                                                        if(vector_address[counter_write] == ADDR_AES_KEYR3 || vector_address[counter_write] == ADDR_AES_IVR3)
                                                        {
                                                                a = a | KEY_FIPS_NOT_DERIVATED[0];
                                                                a = a << 8;
                                                                a = a | KEY_FIPS_NOT_DERIVATED[1];
                                                                a = a << 8;
                                                                a = a | KEY_FIPS_NOT_DERIVATED[2];
                                                                a = a << 8;
                                                                a = a | KEY_FIPS_NOT_DERIVATED[3];
                                                                v_ecb.value.integer = a;
                                                        }
 
 
                                                        if(vector_address[counter_write] == ADDR_AES_KEYR2 || vector_address[counter_write] == ADDR_AES_IVR2)
                                                        {
                                                                b = b | KEY_FIPS_NOT_DERIVATED[4];
                                                                b = b << 8;
                                                                b = b | KEY_FIPS_NOT_DERIVATED[5];
                                                                b = b << 8;
                                                                b = b | KEY_FIPS_NOT_DERIVATED[6];
                                                                b = b << 8;
                                                                b = b | KEY_FIPS_NOT_DERIVATED[7];
                                                                v_ecb.value.integer = b;
                                                        }
 
                                                        if(vector_address[counter_write] == ADDR_AES_KEYR1 || vector_address[counter_write] == ADDR_AES_IVR1)
                                                        {
 
                                                                c = c | KEY_FIPS_NOT_DERIVATED[8];
                                                                c = c << 8;
                                                                c = c | KEY_FIPS_NOT_DERIVATED[9];
                                                                c = c << 8;
                                                                c = c | KEY_FIPS_NOT_DERIVATED[10];
                                                                c = c << 8;
                                                                c = c | KEY_FIPS_NOT_DERIVATED[11];
                                                                v_ecb.value.integer = c;
 
                                                        }
 
                                                        if(vector_address[counter_write] == ADDR_AES_KEYR0 || vector_address[counter_write] == ADDR_AES_IVR0)
                                                        {
                                                                d = d | KEY_FIPS_NOT_DERIVATED[12];
                                                                d = d << 8;
                                                                d = d | KEY_FIPS_NOT_DERIVATED[13];
                                                                d = d << 8;
                                                                d = d | KEY_FIPS_NOT_DERIVATED[14];
                                                                d = d << 8;
                                                                d = d | KEY_FIPS_NOT_DERIVATED[15];
                                                                v_ecb.value.integer = d;
                                                        }
 
 
 
                                                }else if(FIPS_ENABLE == RANDOM_DATA)
                                                {
                                                        v_ecb.value.integer = data_in(rd);
                                                }
 
                                                //vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);                                              
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
 
 
                                                a = 0;
                                                b = 0;
                                                c = 0;
                                                d = 0;
                                        }
 
 
                                        if(counter_write == 9)
                                        {
 
                                                v_ecb.value.integer = vector_address[counter_write];
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                                t_ecb.type = vpiScaledRealTime;
                                                t_ecb.real = 0;
                                                v_ecb.format=vpiIntVal;
                                                v_ecb.value.integer = 6153;
                                                vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);
 
                                        }
 
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
 
                                        counter=0;
                                }
 
                                if(counter_write == 10)
                                {
                                        counter_write = 0;
                                        counter_read  = 0;
 
                                        STATE =WAIT_SR;
 
 
                                }
 
                  break;
 
                  case WAIT_SR:
 
                                v_ecb.value.integer = ADDR_AES_SR;
                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                v_ecb.value.integer = 0;
                                vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
 
                                if(counter == 0)
                                {
 
                                        counter++;
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
 
                                }else if(counter == 1)
                                {
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
                                        counter=0;
                                }
 
                                v_ecb.value.integer = 0;
                                vpi_get_value(PRDATA,&v_ecb);
 
                                if(v_ecb.value.integer == 1)
                                {
                                        STATE = READ_KEY_GEN;
 
                                        t_ecb.type = vpiScaledRealTime;
                                        t_ecb.real = 10;
                                        v_ecb.format=vpiIntVal;
                                        v_ecb.value.integer = ADDR_AES_KEYR3;
                                        vpi_put_value(PADDR, &v_ecb, &t_ecb, vpiTransportDelay);
                                }
 
 
                  break;
 
 
                 case READ_KEY_GEN:
 
 
 
                                if(counter == 0)
                                {
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
                                        counter_read++;
                                        counter++;
 
 
 
                                }else if(counter == 1)
                                {
 
                                        if(counter_read == 0)
                                        {
                                                v_ecb.value.integer = ADDR_AES_KEYR3;
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                        }
 
 
                                        if(counter_read == 1)
                                        {
                                                v_ecb.value.integer = ADDR_AES_KEYR2;
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                        }
 
 
                                        if(counter_read == 2)
                                        {
                                                v_ecb.value.integer = ADDR_AES_KEYR1;
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                        }
 
                                        if(counter_read == 3)
                                        {
                                                v_ecb.value.integer = ADDR_AES_KEYR0;
                                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                        }
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
                                        counter = 0;
                                }
 
                                if(counter_read == 4)
                                {
                                        STATE = RESET_SR;
                                        counter_write = 0;
                                        counter_read  = 0;
                                }
 
                 break;
 
                case RESET_SR:
 
                                v_ecb.value.integer = 1;
                                vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);
 
                                v_ecb.value.integer = 1;
                                vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);
 
                                v_ecb.value.integer = 0;
                                vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);
 
                                v_ecb.value.integer = 128;
                                vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);
 
 
                                if(counter == 0)
                                {
 
                                        counter_write++;
                                        counter++;
 
                                        v_ecb.value.integer = 1;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
 
                                }else if(counter == 1)
                                {
 
                                        v_ecb.value.integer = 0;
                                        vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);
                                        counter=0;
 
                                }
 
                                if(counter_write == 1)
                                {
                                        STATE =IDLE;
                                        counter_write = 0;
                                        counter=0;
                                        PACKETS_GENERATED = PACKETS_GENERATED + 1;
                                }
 
 
 
                break;
 
                }
 
        }
 
        return 0;
}

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Subversion Repositories apbtoaes128

[/] [apbtoaes128/] [trunk/] [pli/] [bfm_ecb/] [aes_bfm_key_generation_dma_ecb.h] - Blame information for rev 4

Line No.	Rev	Author	Line
1	4	redbear	`//////////////////////////////////////////////////////////////////`
2			`////`
3			`////`
4			`//// AES CORE BLOCK`
5			`////`
6			`////`
7			`////`
8			`//// This file is part of the APB to AES128 project`
9			`////`
10			`//// http://www.opencores.org/cores/apbtoaes128/`
11			`////`
12			`////`
13			`////`
14			`//// Description`
15			`////`
16			`//// Implementation of APB IP core according to`
17			`////`
18			`//// aes128_spec IP core specification document.`
19			`////`
20			`////`
21			`////`
22			`//// To Do: Things are right here but always all block can suffer changes`
23			`////`
24			`////`
25			`////`
26			`////`
27			`////`
28			`//// Author(s): - Felipe Fernandes Da Costa, fefe2560@gmail.com`
29			`////`
30			`/////////////////////////////////////////////////////////////////`
31			`////`
32			`////`
33			`//// Copyright (C) 2009 Authors and OPENCORES.ORG`
34			`////`
35			`////`
36			`////`
37			`//// This source file may be used and distributed without`
38			`////`
39			`//// restriction provided that this copyright statement is not`
40			`////`
41			`//// removed from the file and that any derivative work contains`
42			`//// the original copyright notice and the associated disclaimer.`
43			`////`
44			`////`
45			`//// This source file is free software; you can redistribute it`
46			`////`
47			`//// and/or modify it under the terms of the GNU Lesser General`
48			`////`
49			`//// Public License as published by the Free Software Foundation;`
50			`//// either version 2.1 of the License, or (at your option) any`
51			`////`
52			`//// later version.`
53			`////`
54			`////`
55			`////`
56			`//// This source is distributed in the hope that it will be`
57			`////`
58			`//// useful, but WITHOUT ANY WARRANTY; without even the implied`
59			`////`
60			`//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR`
61			`////`
62			`//// PURPOSE. See the GNU Lesser General Public License for more`
63			`//// details.`
64			`////`
65			`////`
66			`////`
67			`//// You should have received a copy of the GNU Lesser General`
68			`////`
69			`//// Public License along with this source; if not, download it`
70			`////`
71			`//// from http://www.opencores.org/lgpl.shtml`
72			`////`
73			`////`
74			`///////////////////////////////////////////////////////////////////`
75			`static int aes_bfm_key_generation_dma_ecb_calltf(char*user_data)`
76			`{`
77
78			`vpiHandle PRESETn = vpi_handle_by_name("AES_GLADIC_tb.PRESETn", NULL);`
79			`vpiHandle PWDATA = vpi_handle_by_name("AES_GLADIC_tb.PWDATA", NULL);`
80			`vpiHandle PENABLE = vpi_handle_by_name("AES_GLADIC_tb.PENABLE", NULL);`
81			`vpiHandle PSEL = vpi_handle_by_name("AES_GLADIC_tb.PSEL", NULL);`
82			`vpiHandle PWRITE = vpi_handle_by_name("AES_GLADIC_tb.PWRITE", NULL);`
83			`vpiHandle PADDR = vpi_handle_by_name("AES_GLADIC_tb.PADDR", NULL);`
84			`vpiHandle PRDATA = vpi_handle_by_name("AES_GLADIC_tb.PRDATA", NULL);`
85			`vpiHandle PREADY = vpi_handle_by_name("AES_GLADIC_tb.PREADY", NULL);`
86			`vpiHandle PSLVERR = vpi_handle_by_name("AES_GLADIC_tb.PSLVERR", NULL);`
87			`vpiHandle int_ccf = vpi_handle_by_name("AES_GLADIC_tb.int_ccf", NULL);`
88			`vpiHandle int_err = vpi_handle_by_name("AES_GLADIC_tb.int_err", NULL);`
89			`vpiHandle dma_req_wr = vpi_handle_by_name("AES_GLADIC_tb.dma_req_wr", NULL);`
90			`vpiHandle dma_req_rd = vpi_handle_by_name("AES_GLADIC_tb.dma_req_rd", NULL);`
91
92			`std::random_device rd;`
93			`std::uniform_int_distribution<long int> data_in(0,4294967295);`
94
95			`v_ecb.format=vpiIntVal;`
96
97			`vpi_get_value(PRESETn, &v_ecb);`
98
99
100			`//printf("%i\n",STATE);`
101
102
103			`if(type_bfm == ECB_KEY_GEN_DMA && v_ecb.value.integer == 1)`
104			`{`
105
106			`switch(STATE)`
107			`{`
108
109			`case IDLE:`
110
111			`if(PACKETS_GENERATED >= MAX_ITERATIONS)`
112			`{`
113
114			`STATE = IDLE;`
115			`type_bfm = 0;`
116
117			`}else`
118			`{`
119			`STATE = WRITE;`
120
121			`counter = 0;`
122
123
124			`v_ecb.value.integer = 0;`
125			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
126
127			`v_ecb.value.integer = vector_address[0];`
128			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
129
130			`v_ecb.value.integer = 0;`
131			`vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);`
132
133			`v_ecb.value.integer = 1;`
134			`vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);`
135
136			`v_ecb.value.integer = 1;`
137			`vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);`
138			`}`
139
140			`break;`
141
142			`case WRITE:`
143			`if(counter == 0)`
144			`{`
145
146
147			`counter_write++;`
148			`counter++;`
149
150			`v_ecb.value.integer = 1;`
151			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
152
153
154			`}else if(counter == 1)`
155			`{`
156
157			`v_ecb.value.integer = 0;`
158			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
159
160
161
162			`if(counter_write < 9)`
163			`{`
164
165			`v_ecb.value.integer = vector_address[counter_write];`
166			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
167
168			`t_ecb.type = vpiScaledRealTime;`
169			`t_ecb.real = 0;`
170			`v_ecb.format=vpiIntVal;`
171
172			`if(FIPS_ENABLE == FIPS)`
173			`{`
174
175			`if(vector_address[counter_write] == ADDR_AES_KEYR3 \|\| vector_address[counter_write] == ADDR_AES_IVR3)`
176			`{`
177			`a = a \| KEY_FIPS_NOT_DERIVATED[0];`
178			`a = a << 8;`
179			`a = a \| KEY_FIPS_NOT_DERIVATED[1];`
180			`a = a << 8;`
181			`a = a \| KEY_FIPS_NOT_DERIVATED[2];`
182			`a = a << 8;`
183			`a = a \| KEY_FIPS_NOT_DERIVATED[3];`
184			`v_ecb.value.integer = a;`
185			`}`
186
187
188			`if(vector_address[counter_write] == ADDR_AES_KEYR2 \|\| vector_address[counter_write] == ADDR_AES_IVR2)`
189			`{`
190			`b = b \| KEY_FIPS_NOT_DERIVATED[4];`
191			`b = b << 8;`
192			`b = b \| KEY_FIPS_NOT_DERIVATED[5];`
193			`b = b << 8;`
194			`b = b \| KEY_FIPS_NOT_DERIVATED[6];`
195			`b = b << 8;`
196			`b = b \| KEY_FIPS_NOT_DERIVATED[7];`
197			`v_ecb.value.integer = b;`
198			`}`
199
200			`if(vector_address[counter_write] == ADDR_AES_KEYR1 \|\| vector_address[counter_write] == ADDR_AES_IVR1)`
201			`{`
202
203			`c = c \| KEY_FIPS_NOT_DERIVATED[8];`
204			`c = c << 8;`
205			`c = c \| KEY_FIPS_NOT_DERIVATED[9];`
206			`c = c << 8;`
207			`c = c \| KEY_FIPS_NOT_DERIVATED[10];`
208			`c = c << 8;`
209			`c = c \| KEY_FIPS_NOT_DERIVATED[11];`
210			`v_ecb.value.integer = c;`
211
212			`}`
213
214			`if(vector_address[counter_write] == ADDR_AES_KEYR0 \|\| vector_address[counter_write] == ADDR_AES_IVR0)`
215			`{`
216			`d = d \| KEY_FIPS_NOT_DERIVATED[12];`
217			`d = d << 8;`
218			`d = d \| KEY_FIPS_NOT_DERIVATED[13];`
219			`d = d << 8;`
220			`d = d \| KEY_FIPS_NOT_DERIVATED[14];`
221			`d = d << 8;`
222			`d = d \| KEY_FIPS_NOT_DERIVATED[15];`
223			`v_ecb.value.integer = d;`
224			`}`
225
226
227
228			`}else if(FIPS_ENABLE == RANDOM_DATA)`
229			`{`
230			`v_ecb.value.integer = data_in(rd);`
231			`}`
232
233			`//vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);`
234			`vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);`
235
236
237			`a = 0;`
238			`b = 0;`
239			`c = 0;`
240			`d = 0;`
241			`}`
242
243
244			`if(counter_write == 9)`
245			`{`
246
247			`v_ecb.value.integer = vector_address[counter_write];`
248			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
249
250			`t_ecb.type = vpiScaledRealTime;`
251			`t_ecb.real = 0;`
252			`v_ecb.format=vpiIntVal;`
253			`v_ecb.value.integer = 6153;`
254			`vpi_put_value(PWDATA, &v_ecb, &t_ecb, vpiTransportDelay);`
255
256			`}`
257
258
259			`v_ecb.value.integer = 1;`
260			`vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);`
261
262			`counter=0;`
263			`}`
264
265			`if(counter_write == 10)`
266			`{`
267			`counter_write = 0;`
268			`counter_read = 0;`
269
270			`STATE =WAIT_SR;`
271
272
273			`}`
274
275			`break;`
276
277			`case WAIT_SR:`
278
279			`v_ecb.value.integer = ADDR_AES_SR;`
280			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
281
282			`v_ecb.value.integer = 0;`
283			`vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);`
284
285			`if(counter == 0)`
286			`{`
287
288			`counter++;`
289
290			`v_ecb.value.integer = 1;`
291			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
292
293
294			`}else if(counter == 1)`
295			`{`
296			`v_ecb.value.integer = 0;`
297			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
298
299			`counter=0;`
300			`}`
301
302			`v_ecb.value.integer = 0;`
303			`vpi_get_value(PRDATA,&v_ecb);`
304
305			`if(v_ecb.value.integer == 1)`
306			`{`
307			`STATE = READ_KEY_GEN;`
308
309			`t_ecb.type = vpiScaledRealTime;`
310			`t_ecb.real = 10;`
311			`v_ecb.format=vpiIntVal;`
312			`v_ecb.value.integer = ADDR_AES_KEYR3;`
313			`vpi_put_value(PADDR, &v_ecb, &t_ecb, vpiTransportDelay);`
314			`}`
315
316
317			`break;`
318
319
320			`case READ_KEY_GEN:`
321
322
323
324			`if(counter == 0)`
325			`{`
326
327			`v_ecb.value.integer = 1;`
328			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
329
330			`counter_read++;`
331			`counter++;`
332
333
334
335			`}else if(counter == 1)`
336			`{`
337
338			`if(counter_read == 0)`
339			`{`
340			`v_ecb.value.integer = ADDR_AES_KEYR3;`
341			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
342
343			`}`
344
345
346			`if(counter_read == 1)`
347			`{`
348			`v_ecb.value.integer = ADDR_AES_KEYR2;`
349			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
350
351			`}`
352
353
354			`if(counter_read == 2)`
355			`{`
356			`v_ecb.value.integer = ADDR_AES_KEYR1;`
357			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
358
359			`}`
360
361			`if(counter_read == 3)`
362			`{`
363			`v_ecb.value.integer = ADDR_AES_KEYR0;`
364			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
365
366			`}`
367			`v_ecb.value.integer = 0;`
368			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
369
370			`counter = 0;`
371			`}`
372
373			`if(counter_read == 4)`
374			`{`
375			`STATE = RESET_SR;`
376			`counter_write = 0;`
377			`counter_read = 0;`
378			`}`
379
380			`break;`
381
382			`case RESET_SR:`
383
384			`v_ecb.value.integer = 1;`
385			`vpi_put_value(PWRITE, &v_ecb, NULL, vpiNoDelay);`
386
387			`v_ecb.value.integer = 1;`
388			`vpi_put_value(PSEL, &v_ecb, NULL, vpiNoDelay);`
389
390			`v_ecb.value.integer = 0;`
391			`vpi_put_value(PADDR, &v_ecb, NULL, vpiNoDelay);`
392
393			`v_ecb.value.integer = 128;`
394			`vpi_put_value(PWDATA, &v_ecb, NULL, vpiNoDelay);`
395
396
397			`if(counter == 0)`
398			`{`
399
400			`counter_write++;`
401			`counter++;`
402
403			`v_ecb.value.integer = 1;`
404			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
405
406			`}else if(counter == 1)`
407			`{`
408
409			`v_ecb.value.integer = 0;`
410			`vpi_put_value(PENABLE, &v_ecb, NULL, vpiNoDelay);`
411			`counter=0;`
412
413			`}`
414
415			`if(counter_write == 1)`
416			`{`
417			`STATE =IDLE;`
418			`counter_write = 0;`
419			`counter=0;`
420			`PACKETS_GENERATED = PACKETS_GENERATED + 1;`
421			`}`
422
423
424
425			`break;`
426
427			`}`
428
429			`}`
430
431			`return 0;`
432			`}`