Unified Coverage Report :: Module :: tlul_socket_1n

Module : tlul_socket_1n

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
97.67	98.21	97.73			94.74	100.00

Source File(s) :
/workspaces/lowrisc/opentitan/scratch/earlgrey_1_0_0_2024_08_20_RC0/usbdev-sim-vcs/default/sim-vcs/../src/lowrisc_tlul_socket_1n_0.1/rtl/tlul_socket_1n.sv

Module self-instances :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
tb.dut.u_reg.u_socket	99.55	98.21	100.00			100.00	100.00

---

Module Instance : tb.dut.u_reg.u_socket

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
99.55	98.21	100.00			100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
99.69	98.75	100.00			100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
99.47	99.76	98.11			100.00	100.00	u_reg

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
fifo_h	100.00	100.00	100.00			100.00	100.00
gen_dfifo[0].fifo_d	100.00	100.00	100.00			100.00	100.00
gen_dfifo[1].fifo_d	100.00	100.00	100.00			100.00	100.00

Line Coverage for Module : tlul_socket_1n

	Line No.	Total	Covered	Percent
TOTAL		56	55	98.21
CONT_ASSIGN	112	1	1	100.00
CONT_ASSIGN	113	1	1	100.00
ALWAYS	116	9	9	100.00
CONT_ASSIGN	132	1	1	100.00
CONT_ASSIGN	145	1	1	100.00
CONT_ASSIGN	155	1	1	100.00
CONT_ASSIGN	155	1	1	100.00
CONT_ASSIGN	157	1	1	100.00
CONT_ASSIGN	157	1	1	100.00
CONT_ASSIGN	158	1	1	100.00
CONT_ASSIGN	158	1	1	100.00
CONT_ASSIGN	159	1	1	100.00
CONT_ASSIGN	159	1	1	100.00
CONT_ASSIGN	160	1	1	100.00
CONT_ASSIGN	160	1	1	100.00
CONT_ASSIGN	161	1	1	100.00
CONT_ASSIGN	161	1	1	100.00
CONT_ASSIGN	162	1	1	100.00
CONT_ASSIGN	162	1	1	100.00
CONT_ASSIGN	163	1	1	100.00
CONT_ASSIGN	163	1	1	100.00
CONT_ASSIGN	164	1	1	100.00
CONT_ASSIGN	164	1	1	100.00
CONT_ASSIGN	167	1	1	100.00
CONT_ASSIGN	167	1	1	100.00
CONT_ASSIGN	171	1	1	100.00
CONT_ASSIGN	171	1	1	100.00
ALWAYS	180	6	6	100.00
CONT_ASSIGN	189	1	1	100.00
ALWAYS	192	4	4	100.00
CONT_ASSIGN	197	1	1	100.00
CONT_ASSIGN	198	1	1	100.00
CONT_ASSIGN	199	1	1	100.00
CONT_ASSIGN	200	1	1	100.00
CONT_ASSIGN	201	1	1	100.00
CONT_ASSIGN	202	1	1	100.00
CONT_ASSIGN	203	1	1	100.00
CONT_ASSIGN	204	1	1	100.00
CONT_ASSIGN	205	1	1	100.00
CONT_ASSIGN	252	1	0	0.00

111                     
112        1/1            assign  accept_t_req = tl_t_o.a_valid & tl_t_i.a_ready;
           Tests:       T1 T2 T3 
113        1/1            assign  accept_t_rsp = tl_t_i.d_valid & tl_t_o.d_ready;
           Tests:       T1 T2 T3 
114                     
115                       always_ff @(posedge clk_i or negedge rst_ni) begin
116        1/1              if (!rst_ni) begin
           Tests:       T1 T2 T3 
117        1/1                num_req_outstanding <= '0;
           Tests:       T1 T2 T3 
118        1/1                dev_select_outstanding <= '0;
           Tests:       T1 T2 T3 
119        1/1              end else if (accept_t_req) begin
           Tests:       T1 T2 T3 
120        1/1                if (!accept_t_rsp) begin
           Tests:       T1 T2 T3 
121        1/1                  num_req_outstanding <= num_req_outstanding + 1'b1;
           Tests:       T1 T2 T3 
122                           end
                   ==>  MISSING_ELSE
123        1/1                dev_select_outstanding <= dev_select_t;
           Tests:       T1 T2 T3 
124        1/1              end else if (accept_t_rsp) begin
           Tests:       T1 T2 T3 
125        1/1                num_req_outstanding <= num_req_outstanding - 1'b1;
           Tests:       T1 T2 T3 
126                         end
                        MISSING_ELSE
127                       end
128                     
129                       `ASSERT(NotOverflowed_A,
130                               accept_t_req && !accept_t_rsp -> num_req_outstanding <= MaxOutstanding)
131                     
132        1/1            assign hold_all_requests =
           Tests:       T1 T2 T3 
133                           (num_req_outstanding != '0) &
134                           (dev_select_t != dev_select_outstanding);
135                     
136                       // Make N copies of 't' request side with modified reqvalid, call
137                       // them 'u[0]' .. 'u[n-1]'.
138                     
139                       tlul_pkg::tl_h2d_t   tl_u_o [N+1];
140                       tlul_pkg::tl_d2h_t   tl_u_i [N+1];
141                     
142                       // ensure that when a device is not selected, both command
143                       // data integrity can never match
144                       tlul_pkg::tl_a_user_t blanked_auser;
145        1/1            assign blanked_auser = '{
           Tests:       T1 T2 T3 
146                         rsvd: tl_t_o.a_user.rsvd,
147                         instr_type: tl_t_o.a_user.instr_type,
148                         cmd_intg: tlul_pkg::get_bad_cmd_intg(tl_t_o),
149                         data_intg: tlul_pkg::get_bad_data_intg(tlul_pkg::BlankedAData)
150                       };
151                     
152                       // if a host is not selected, or if requests are held off, blank the bus
153                       for (genvar i = 0 ; i < N ; i++) begin : gen_u_o
154                         logic dev_select;
155        2/2              assign dev_select = dev_select_t == NWD'(i) & ~hold_all_requests;
           Tests:       T1 T2 T3  | T1 T2 T3 
156                     
157        2/2              assign tl_u_o[i].a_valid   = tl_t_o.a_valid & dev_select;
           Tests:       T1 T2 T3  | T1 T2 T3 
158        2/2              assign tl_u_o[i].a_opcode  = tl_t_o.a_opcode;
           Tests:       T1 T2 T3  | T1 T2 T3 
159        2/2              assign tl_u_o[i].a_param   = tl_t_o.a_param;
           Tests:       T1 T2 T3  | T1 T2 T3 
160        2/2              assign tl_u_o[i].a_size    = tl_t_o.a_size;
           Tests:       T1 T2 T3  | T1 T2 T3 
161        2/2              assign tl_u_o[i].a_source  = tl_t_o.a_source;
           Tests:       T1 T2 T3  | T1 T2 T3 
162        2/2              assign tl_u_o[i].a_address = tl_t_o.a_address;
           Tests:       T1 T2 T3  | T1 T2 T3 
163        2/2              assign tl_u_o[i].a_mask    = tl_t_o.a_mask;
           Tests:       T1 T2 T3  | T1 T2 T3 
164        2/2              assign tl_u_o[i].a_data    = dev_select ?
           Tests:       T1 T2 T3  | T1 T2 T3 
165                                                      tl_t_o.a_data :
166                                                      tlul_pkg::BlankedAData;
167        2/2              assign tl_u_o[i].a_user    = dev_select ?
           Tests:       T1 T2 T3  | T1 T2 T3 
168                                                      tl_t_o.a_user :
169                                                      blanked_auser;
170                     
171        2/2              assign tl_u_o[i].d_ready   = tl_t_o.d_ready;
           Tests:       T1 T2 T3  | T1 T2 T3 
172                       end
173                     
174                     
175                       tlul_pkg::tl_d2h_t tl_t_p ;
176                     
177                       // for the returning reqready, only look at the device we're addressing
178                       logic hfifo_reqready;
179                       always_comb begin
180        1/1              hfifo_reqready = tl_u_i[N].a_ready; // default to error
           Tests:       T1 T2 T3 
181        1/1              for (int idx = 0 ; idx < N ; idx++) begin
           Tests:       T1 T2 T3 
182                           //if (dev_select_outstanding == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
183        2/2                if (dev_select_t == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
184                         end
185        2/2              if (hold_all_requests) hfifo_reqready = 1'b0;
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
186                       end
187                       // Adding a_valid as a qualifier. This prevents the a_ready from having unknown value
188                       // when the address is unknown and the Host TL-UL FIFO is bypass mode.
189        1/1            assign tl_t_i.a_ready = tl_t_o.a_valid & hfifo_reqready;
           Tests:       T1 T2 T3 
190                     
191                       always_comb begin
192        1/1              tl_t_p = tl_u_i[N];
           Tests:       T1 T2 T3 
193        1/1              for (int idx = 0 ; idx < N ; idx++) begin
           Tests:       T1 T2 T3 
194        2/2                if (dev_select_outstanding == NWD'(idx)) tl_t_p = tl_u_i[idx];
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
195                         end
196                       end
197        1/1            assign tl_t_i.d_valid  = tl_t_p.d_valid ;
           Tests:       T1 T2 T3 
198        1/1            assign tl_t_i.d_opcode = tl_t_p.d_opcode;
           Tests:       T1 T2 T3 
199        1/1            assign tl_t_i.d_param  = tl_t_p.d_param ;
           Tests:       T1 T2 T3 
200        1/1            assign tl_t_i.d_size   = tl_t_p.d_size  ;
           Tests:       T1 T2 T3 
201        1/1            assign tl_t_i.d_source = tl_t_p.d_source;
           Tests:       T1 T2 T3 
202        1/1            assign tl_t_i.d_sink   = tl_t_p.d_sink  ;
           Tests:       T1 T2 T3 
203        1/1            assign tl_t_i.d_data   = tl_t_p.d_data  ;
           Tests:       T1 T2 T3 
204        1/1            assign tl_t_i.d_user   = tl_t_p.d_user  ;
           Tests:       T1 T2 T3 
205        1/1            assign tl_t_i.d_error  = tl_t_p.d_error ;
           Tests:       T1 T2 T3 
206                     
207                       // Instantiate all the device FIFOs
208                       for (genvar i = 0 ; i < N ; i++) begin : gen_dfifo
209                         tlul_fifo_sync #(
210                           .ReqPass(DReqPass[i]),
211                           .RspPass(DRspPass[i]),
212                           .ReqDepth(DReqDepth[i*4+:4]),
213                           .RspDepth(DRspDepth[i*4+:4])
214                         ) fifo_d (
215                           .clk_i,
216                           .rst_ni,
217                           .tl_h_i      (tl_u_o[i]),
218                           .tl_h_o      (tl_u_i[i]),
219                           .tl_d_o      (tl_d_o[i]),
220                           .tl_d_i      (tl_d_i[i]),
221                           .spare_req_i (1'b0),
222                           .spare_req_o (),
223                           .spare_rsp_i (1'b0),
224                           .spare_rsp_o ());
225                       end
226                     
227                       // Instantiate the error responder. It's only needed if a value greater than
228                       // N-1 is actually representable in NWD bits.
229                       if ($clog2(N+1) <= NWD) begin : gen_err_resp
230                         assign tl_u_o[N].d_ready     = tl_t_o.d_ready;
231                         assign tl_u_o[N].a_valid     = tl_t_o.a_valid &
232                                                        (dev_select_t >= NWD'(N)) &
233                                                        ~hold_all_requests;
234                         assign tl_u_o[N].a_opcode    = tl_t_o.a_opcode;
235                         assign tl_u_o[N].a_param     = tl_t_o.a_param;
236                         assign tl_u_o[N].a_size      = tl_t_o.a_size;
237                         assign tl_u_o[N].a_source    = tl_t_o.a_source;
238                         assign tl_u_o[N].a_address   = tl_t_o.a_address;
239                         assign tl_u_o[N].a_mask      = tl_t_o.a_mask;
240                         assign tl_u_o[N].a_data      = tl_t_o.a_data;
241                         assign tl_u_o[N].a_user      = tl_t_o.a_user;
242                         tlul_err_resp err_resp (
243                           .clk_i,
244                           .rst_ni,
245                           .tl_h_i     (tl_u_o[N]),
246                           .tl_h_o     (tl_u_i[N])
247                         );
248                       end else begin : gen_no_err_resp // block: gen_err_resp
249                         assign tl_u_o[N] = '0;
250                         assign tl_u_i[N] = '0;
251                         logic unused_sig;
252        0/1     ==>      assign unused_sig = ^tl_u_o[N];

---

Cond Coverage for Module : tlul_socket_1n

	Total	Covered	Percent
Conditions	44	43	97.73
Logical	44	43	97.73
Non-Logical	0	0
Event	0	0

 LINE       112
 EXPRESSION (tl_t_o.a_valid & tl_t_i.a_ready)
             -------1------   -------2------

-1-	-2-	Status	Tests
0	1	Not Covered
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       113
 EXPRESSION (tl_t_i.d_valid & tl_t_o.d_ready)
             -------1------   -------2------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T3,T42
1	1	Covered	T1,T2,T3

 LINE       132
 EXPRESSION ((num_req_outstanding != '0) & (dev_select_t != dev_select_outstanding))
             -------------1-------------   --------------------2-------------------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T3,T32,T66

 LINE       132
 SUB-EXPRESSION (num_req_outstanding != '0)
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       132
 SUB-EXPRESSION (dev_select_t != dev_select_outstanding)
                --------------------1-------------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       155
 EXPRESSION ((dev_select_t == 1'(0)) & ((~hold_all_requests)))
             -----------1-----------   -----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T3,T32,T66
1	1	Covered	T2,T3,T30

 LINE       155
 SUB-EXPRESSION (dev_select_t == 1'(0))
                -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       155
 EXPRESSION ((dev_select_t == 1'(1)) & ((~hold_all_requests)))
             -----------1-----------   -----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T2,T3,T30
1	0	Covered	T46,T90,T53
1	1	Covered	T1,T2,T3

 LINE       155
 SUB-EXPRESSION (dev_select_t == 1'(1))
                -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       157
 EXPRESSION (tl_t_o.a_valid & gen_u_o[0].dev_select)
             -------1------   ----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T1,T2,T3
1	1	Covered	T2,T30,T43

 LINE       157
 EXPRESSION (tl_t_o.a_valid & gen_u_o[1].dev_select)
             -------1------   ----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T2,T30,T43
1	1	Covered	T1,T2,T3

 LINE       164
 EXPRESSION (gen_u_o[0].dev_select ? tl_t_o.a_data : tlul_pkg::BlankedAData)
             ----------1----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       164
 EXPRESSION (gen_u_o[1].dev_select ? tl_t_o.a_data : tlul_pkg::BlankedAData)
             ----------1----------

-1-	Status	Tests
0	Covered	T2,T3,T30
1	Covered	T1,T2,T3

 LINE       167
 EXPRESSION (gen_u_o[0].dev_select ? tl_t_o.a_user : blanked_auser)
             ----------1----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       167
 EXPRESSION (gen_u_o[1].dev_select ? tl_t_o.a_user : blanked_auser)
             ----------1----------

-1-	Status	Tests
0	Covered	T2,T3,T30
1	Covered	T1,T2,T3

 LINE       183
 EXPRESSION (dev_select_t == 1'(idx))
            ------------1------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       189
 EXPRESSION (tl_t_o.a_valid & hfifo_reqready)
             -------1------   -------2------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       194
 EXPRESSION (dev_select_outstanding == 1'(idx))
            -----------------1-----------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

---

Branch Coverage for Module : tlul_socket_1n

	Line No.	Total	Covered	Percent
Branches		19	18	94.74
TERNARY	164	2	2	100.00
TERNARY	167	2	2	100.00
TERNARY	164	2	2	100.00
TERNARY	167	2	2	100.00
IF	116	5	4	80.00
IF	183	2	2	100.00
IF	185	2	2	100.00
IF	194	2	2	100.00

164            assign tl_u_o[i].a_data    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T2,T3,T30
0	Covered	T1,T2,T3

167            assign tl_u_o[i].a_user    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T2,T3,T30
0	Covered	T1,T2,T3

164            assign tl_u_o[i].a_data    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T2,T3,T30

167            assign tl_u_o[i].a_user    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T2,T3,T30

116            if (!rst_ni) begin
               -1-  
117              num_req_outstanding <= '0;
                 ==>
118              dev_select_outstanding <= '0;
119            end else if (accept_t_req) begin
                        -2-  
120              if (!accept_t_rsp) begin
                 -3-  
121                num_req_outstanding <= num_req_outstanding + 1'b1;
                   ==>
122              end
                 MISSING_ELSE
                 ==>
123              dev_select_outstanding <= dev_select_t;
124            end else if (accept_t_rsp) begin
                        -4-  
125              num_req_outstanding <= num_req_outstanding - 1'b1;
                 ==>
126            end
               MISSING_ELSE
               ==>

Branches:

-1-	-2-	-3-	-4-	Status	Tests
1	-	-	-	Covered	T1,T2,T3
0	1	1	-	Covered	T1,T2,T3
0	1	0	-	Not Covered
0	0	-	1	Covered	T1,T2,T3
0	0	-	0	Covered	T1,T2,T3

183              if (dev_select_t == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
                 -1-                                 
                 ==>
                 MISSING_ELSE
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

185            if (hold_all_requests) hfifo_reqready = 1'b0;
               -1-                         
               ==>
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

194              if (dev_select_outstanding == NWD'(idx)) tl_t_p = tl_u_i[idx];
                 -1-  
                 ==>
                 MISSING_ELSE
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Module : tlul_socket_1n

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	2	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	2	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
NotOverflowed_A	579465855	579140782	0	0
maxN	3728	3728	0	0

NotOverflowed_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	579465855	579140782	0	0
T1	7764	7699	0	0
T2	8970	8894	0	0
T3	6768	6676	0	0
T29	8730	8638	0	0
T30	30090	30028	0	0
T41	1660	1571	0	0
T42	7641	7565	0	0
T43	23138	23066	0	0
T44	8318	8254	0	0
T45	25309	25235	0	0

maxN

Name	Attempts	Real Successes	Failures	Incomplete
Total	3728	3728	0	0
T1	1	1	0	0
T2	1	1	0	0
T3	1	1	0	0
T29	1	1	0	0
T30	1	1	0	0
T41	1	1	0	0
T42	1	1	0	0
T43	1	1	0	0
T44	1	1	0	0
T45	1	1	0	0

Line Coverage for Instance : tb.dut.u_reg.u_socket

	Line No.	Total	Covered	Percent
TOTAL		56	55	98.21
CONT_ASSIGN	112	1	1	100.00
CONT_ASSIGN	113	1	1	100.00
ALWAYS	116	9	9	100.00
CONT_ASSIGN	132	1	1	100.00
CONT_ASSIGN	145	1	1	100.00
CONT_ASSIGN	155	1	1	100.00
CONT_ASSIGN	155	1	1	100.00
CONT_ASSIGN	157	1	1	100.00
CONT_ASSIGN	157	1	1	100.00
CONT_ASSIGN	158	1	1	100.00
CONT_ASSIGN	158	1	1	100.00
CONT_ASSIGN	159	1	1	100.00
CONT_ASSIGN	159	1	1	100.00
CONT_ASSIGN	160	1	1	100.00
CONT_ASSIGN	160	1	1	100.00
CONT_ASSIGN	161	1	1	100.00
CONT_ASSIGN	161	1	1	100.00
CONT_ASSIGN	162	1	1	100.00
CONT_ASSIGN	162	1	1	100.00
CONT_ASSIGN	163	1	1	100.00
CONT_ASSIGN	163	1	1	100.00
CONT_ASSIGN	164	1	1	100.00
CONT_ASSIGN	164	1	1	100.00
CONT_ASSIGN	167	1	1	100.00
CONT_ASSIGN	167	1	1	100.00
CONT_ASSIGN	171	1	1	100.00
CONT_ASSIGN	171	1	1	100.00
ALWAYS	180	6	6	100.00
CONT_ASSIGN	189	1	1	100.00
ALWAYS	192	4	4	100.00
CONT_ASSIGN	197	1	1	100.00
CONT_ASSIGN	198	1	1	100.00
CONT_ASSIGN	199	1	1	100.00
CONT_ASSIGN	200	1	1	100.00
CONT_ASSIGN	201	1	1	100.00
CONT_ASSIGN	202	1	1	100.00
CONT_ASSIGN	203	1	1	100.00
CONT_ASSIGN	204	1	1	100.00
CONT_ASSIGN	205	1	1	100.00
CONT_ASSIGN	252	1	0	0.00

111                     
112        1/1            assign  accept_t_req = tl_t_o.a_valid & tl_t_i.a_ready;
           Tests:       T1 T2 T3 
113        1/1            assign  accept_t_rsp = tl_t_i.d_valid & tl_t_o.d_ready;
           Tests:       T1 T2 T3 
114                     
115                       always_ff @(posedge clk_i or negedge rst_ni) begin
116        1/1              if (!rst_ni) begin
           Tests:       T1 T2 T3 
117        1/1                num_req_outstanding <= '0;
           Tests:       T1 T2 T3 
118        1/1                dev_select_outstanding <= '0;
           Tests:       T1 T2 T3 
119        1/1              end else if (accept_t_req) begin
           Tests:       T1 T2 T3 
120        1/1                if (!accept_t_rsp) begin
           Tests:       T1 T2 T3 
121        1/1                  num_req_outstanding <= num_req_outstanding + 1'b1;
           Tests:       T1 T2 T3 
122                           end
                   ==>  MISSING_ELSE
123        1/1                dev_select_outstanding <= dev_select_t;
           Tests:       T1 T2 T3 
124        1/1              end else if (accept_t_rsp) begin
           Tests:       T1 T2 T3 
125        1/1                num_req_outstanding <= num_req_outstanding - 1'b1;
           Tests:       T1 T2 T3 
126                         end
                        MISSING_ELSE
127                       end
128                     
129                       `ASSERT(NotOverflowed_A,
130                               accept_t_req && !accept_t_rsp -> num_req_outstanding <= MaxOutstanding)
131                     
132        1/1            assign hold_all_requests =
           Tests:       T1 T2 T3 
133                           (num_req_outstanding != '0) &
134                           (dev_select_t != dev_select_outstanding);
135                     
136                       // Make N copies of 't' request side with modified reqvalid, call
137                       // them 'u[0]' .. 'u[n-1]'.
138                     
139                       tlul_pkg::tl_h2d_t   tl_u_o [N+1];
140                       tlul_pkg::tl_d2h_t   tl_u_i [N+1];
141                     
142                       // ensure that when a device is not selected, both command
143                       // data integrity can never match
144                       tlul_pkg::tl_a_user_t blanked_auser;
145        1/1            assign blanked_auser = '{
           Tests:       T1 T2 T3 
146                         rsvd: tl_t_o.a_user.rsvd,
147                         instr_type: tl_t_o.a_user.instr_type,
148                         cmd_intg: tlul_pkg::get_bad_cmd_intg(tl_t_o),
149                         data_intg: tlul_pkg::get_bad_data_intg(tlul_pkg::BlankedAData)
150                       };
151                     
152                       // if a host is not selected, or if requests are held off, blank the bus
153                       for (genvar i = 0 ; i < N ; i++) begin : gen_u_o
154                         logic dev_select;
155        2/2              assign dev_select = dev_select_t == NWD'(i) & ~hold_all_requests;
           Tests:       T1 T2 T3  | T1 T2 T3 
156                     
157        2/2              assign tl_u_o[i].a_valid   = tl_t_o.a_valid & dev_select;
           Tests:       T1 T2 T3  | T1 T2 T3 
158        2/2              assign tl_u_o[i].a_opcode  = tl_t_o.a_opcode;
           Tests:       T1 T2 T3  | T1 T2 T3 
159        2/2              assign tl_u_o[i].a_param   = tl_t_o.a_param;
           Tests:       T1 T2 T3  | T1 T2 T3 
160        2/2              assign tl_u_o[i].a_size    = tl_t_o.a_size;
           Tests:       T1 T2 T3  | T1 T2 T3 
161        2/2              assign tl_u_o[i].a_source  = tl_t_o.a_source;
           Tests:       T1 T2 T3  | T1 T2 T3 
162        2/2              assign tl_u_o[i].a_address = tl_t_o.a_address;
           Tests:       T1 T2 T3  | T1 T2 T3 
163        2/2              assign tl_u_o[i].a_mask    = tl_t_o.a_mask;
           Tests:       T1 T2 T3  | T1 T2 T3 
164        2/2              assign tl_u_o[i].a_data    = dev_select ?
           Tests:       T1 T2 T3  | T1 T2 T3 
165                                                      tl_t_o.a_data :
166                                                      tlul_pkg::BlankedAData;
167        2/2              assign tl_u_o[i].a_user    = dev_select ?
           Tests:       T1 T2 T3  | T1 T2 T3 
168                                                      tl_t_o.a_user :
169                                                      blanked_auser;
170                     
171        2/2              assign tl_u_o[i].d_ready   = tl_t_o.d_ready;
           Tests:       T1 T2 T3  | T1 T2 T3 
172                       end
173                     
174                     
175                       tlul_pkg::tl_d2h_t tl_t_p ;
176                     
177                       // for the returning reqready, only look at the device we're addressing
178                       logic hfifo_reqready;
179                       always_comb begin
180        1/1              hfifo_reqready = tl_u_i[N].a_ready; // default to error
           Tests:       T1 T2 T3 
181        1/1              for (int idx = 0 ; idx < N ; idx++) begin
           Tests:       T1 T2 T3 
182                           //if (dev_select_outstanding == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
183        2/2                if (dev_select_t == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
184                         end
185        2/2              if (hold_all_requests) hfifo_reqready = 1'b0;
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
186                       end
187                       // Adding a_valid as a qualifier. This prevents the a_ready from having unknown value
188                       // when the address is unknown and the Host TL-UL FIFO is bypass mode.
189        1/1            assign tl_t_i.a_ready = tl_t_o.a_valid & hfifo_reqready;
           Tests:       T1 T2 T3 
190                     
191                       always_comb begin
192        1/1              tl_t_p = tl_u_i[N];
           Tests:       T1 T2 T3 
193        1/1              for (int idx = 0 ; idx < N ; idx++) begin
           Tests:       T1 T2 T3 
194        2/2                if (dev_select_outstanding == NWD'(idx)) tl_t_p = tl_u_i[idx];
           Tests:       T1 T2 T3  | T1 T2 T3 
                        MISSING_ELSE
195                         end
196                       end
197        1/1            assign tl_t_i.d_valid  = tl_t_p.d_valid ;
           Tests:       T1 T2 T3 
198        1/1            assign tl_t_i.d_opcode = tl_t_p.d_opcode;
           Tests:       T1 T2 T3 
199        1/1            assign tl_t_i.d_param  = tl_t_p.d_param ;
           Tests:       T1 T2 T3 
200        1/1            assign tl_t_i.d_size   = tl_t_p.d_size  ;
           Tests:       T1 T2 T3 
201        1/1            assign tl_t_i.d_source = tl_t_p.d_source;
           Tests:       T1 T2 T3 
202        1/1            assign tl_t_i.d_sink   = tl_t_p.d_sink  ;
           Tests:       T1 T2 T3 
203        1/1            assign tl_t_i.d_data   = tl_t_p.d_data  ;
           Tests:       T1 T2 T3 
204        1/1            assign tl_t_i.d_user   = tl_t_p.d_user  ;
           Tests:       T1 T2 T3 
205        1/1            assign tl_t_i.d_error  = tl_t_p.d_error ;
           Tests:       T1 T2 T3 
206                     
207                       // Instantiate all the device FIFOs
208                       for (genvar i = 0 ; i < N ; i++) begin : gen_dfifo
209                         tlul_fifo_sync #(
210                           .ReqPass(DReqPass[i]),
211                           .RspPass(DRspPass[i]),
212                           .ReqDepth(DReqDepth[i*4+:4]),
213                           .RspDepth(DRspDepth[i*4+:4])
214                         ) fifo_d (
215                           .clk_i,
216                           .rst_ni,
217                           .tl_h_i      (tl_u_o[i]),
218                           .tl_h_o      (tl_u_i[i]),
219                           .tl_d_o      (tl_d_o[i]),
220                           .tl_d_i      (tl_d_i[i]),
221                           .spare_req_i (1'b0),
222                           .spare_req_o (),
223                           .spare_rsp_i (1'b0),
224                           .spare_rsp_o ());
225                       end
226                     
227                       // Instantiate the error responder. It's only needed if a value greater than
228                       // N-1 is actually representable in NWD bits.
229                       if ($clog2(N+1) <= NWD) begin : gen_err_resp
230                         assign tl_u_o[N].d_ready     = tl_t_o.d_ready;
231                         assign tl_u_o[N].a_valid     = tl_t_o.a_valid &
232                                                        (dev_select_t >= NWD'(N)) &
233                                                        ~hold_all_requests;
234                         assign tl_u_o[N].a_opcode    = tl_t_o.a_opcode;
235                         assign tl_u_o[N].a_param     = tl_t_o.a_param;
236                         assign tl_u_o[N].a_size      = tl_t_o.a_size;
237                         assign tl_u_o[N].a_source    = tl_t_o.a_source;
238                         assign tl_u_o[N].a_address   = tl_t_o.a_address;
239                         assign tl_u_o[N].a_mask      = tl_t_o.a_mask;
240                         assign tl_u_o[N].a_data      = tl_t_o.a_data;
241                         assign tl_u_o[N].a_user      = tl_t_o.a_user;
242                         tlul_err_resp err_resp (
243                           .clk_i,
244                           .rst_ni,
245                           .tl_h_i     (tl_u_o[N]),
246                           .tl_h_o     (tl_u_i[N])
247                         );
248                       end else begin : gen_no_err_resp // block: gen_err_resp
249                         assign tl_u_o[N] = '0;
250                         assign tl_u_i[N] = '0;
251                         logic unused_sig;
252        0/1     ==>      assign unused_sig = ^tl_u_o[N];

---

Cond Coverage for Instance : tb.dut.u_reg.u_socket

	Total	Covered	Percent
Conditions	43	43	100.00
Logical	43	43	100.00
Non-Logical	0	0
Event	0	0

 LINE       112
 EXPRESSION (tl_t_o.a_valid & tl_t_i.a_ready)
             -------1------   -------2------

-1-	-2-	Status	Tests	Exclude Annotation
0	1	Excluded		VC_COV_UNR
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       113
 EXPRESSION (tl_t_i.d_valid & tl_t_o.d_ready)
             -------1------   -------2------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T3,T42
1	1	Covered	T1,T2,T3

 LINE       132
 EXPRESSION ((num_req_outstanding != '0) & (dev_select_t != dev_select_outstanding))
             -------------1-------------   --------------------2-------------------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T1,T2,T3
1	1	Covered	T3,T32,T66

 LINE       132
 SUB-EXPRESSION (num_req_outstanding != '0)
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       132
 SUB-EXPRESSION (dev_select_t != dev_select_outstanding)
                --------------------1-------------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       155
 EXPRESSION ((dev_select_t == 1'(0)) & ((~hold_all_requests)))
             -----------1-----------   -----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T1,T2,T3
1	0	Covered	T3,T32,T66
1	1	Covered	T2,T3,T30

 LINE       155
 SUB-EXPRESSION (dev_select_t == 1'(0))
                -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       155
 EXPRESSION ((dev_select_t == 1'(1)) & ((~hold_all_requests)))
             -----------1-----------   -----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T2,T3,T30
1	0	Covered	T46,T90,T53
1	1	Covered	T1,T2,T3

 LINE       155
 SUB-EXPRESSION (dev_select_t == 1'(1))
                -----------1-----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       157
 EXPRESSION (tl_t_o.a_valid & gen_u_o[0].dev_select)
             -------1------   ----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T1,T2,T3
1	1	Covered	T2,T30,T43

 LINE       157
 EXPRESSION (tl_t_o.a_valid & gen_u_o[1].dev_select)
             -------1------   ----------2----------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T2,T30,T43
1	1	Covered	T1,T2,T3

 LINE       164
 EXPRESSION (gen_u_o[0].dev_select ? tl_t_o.a_data : tlul_pkg::BlankedAData)
             ----------1----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       164
 EXPRESSION (gen_u_o[1].dev_select ? tl_t_o.a_data : tlul_pkg::BlankedAData)
             ----------1----------

-1-	Status	Tests
0	Covered	T2,T3,T30
1	Covered	T1,T2,T3

 LINE       167
 EXPRESSION (gen_u_o[0].dev_select ? tl_t_o.a_user : blanked_auser)
             ----------1----------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T2,T3,T30

 LINE       167
 EXPRESSION (gen_u_o[1].dev_select ? tl_t_o.a_user : blanked_auser)
             ----------1----------

-1-	Status	Tests
0	Covered	T2,T3,T30
1	Covered	T1,T2,T3

 LINE       183
 EXPRESSION (dev_select_t == 1'(idx))
            ------------1------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

 LINE       189
 EXPRESSION (tl_t_o.a_valid & hfifo_reqready)
             -------1------   -------2------

-1-	-2-	Status	Tests
0	1	Covered	T3,T32,T66
1	0	Covered	T1,T2,T3
1	1	Covered	T1,T2,T3

 LINE       194
 EXPRESSION (dev_select_outstanding == 1'(idx))
            -----------------1-----------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T1,T2,T3

---

Branch Coverage for Instance : tb.dut.u_reg.u_socket

	Line No.	Total	Covered	Percent
Branches		18	18	100.00
TERNARY	164	2	2	100.00
TERNARY	167	2	2	100.00
TERNARY	164	2	2	100.00
TERNARY	167	2	2	100.00
IF	116	4	4	100.00
IF	183	2	2	100.00
IF	185	2	2	100.00
IF	194	2	2	100.00

164            assign tl_u_o[i].a_data    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T2,T3,T30
0	Covered	T1,T2,T3

167            assign tl_u_o[i].a_user    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T2,T3,T30
0	Covered	T1,T2,T3

164            assign tl_u_o[i].a_data    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T2,T3,T30

167            assign tl_u_o[i].a_user    = dev_select ?
                                                       -1-  
                                                       ==>  
                                                       ==>  

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T2,T3,T30

116            if (!rst_ni) begin
               -1-  
117              num_req_outstanding <= '0;
                 ==>
118              dev_select_outstanding <= '0;
119            end else if (accept_t_req) begin
                        -2-  
120              if (!accept_t_rsp) begin
                 -3-  
121                num_req_outstanding <= num_req_outstanding + 1'b1;
                   ==>
122              end
                 MISSING_ELSE
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR
123              dev_select_outstanding <= dev_select_t;
124            end else if (accept_t_rsp) begin
                        -4-  
125              num_req_outstanding <= num_req_outstanding - 1'b1;
                 ==>
126            end
               MISSING_ELSE
               ==>

Branches:

-1-	-2-	-3-	-4-	Status	Tests	Exclude Annotation
1	-	-	-	Covered	T1,T2,T3
0	1	1	-	Covered	T1,T2,T3
0	1	0	-	Excluded		VC_COV_UNR
0	0	-	1	Covered	T1,T2,T3
0	0	-	0	Covered	T1,T2,T3

183              if (dev_select_t == NWD'(idx)) hfifo_reqready = tl_u_i[idx].a_ready;
                 -1-                                 
                 ==>
                 MISSING_ELSE
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

185            if (hold_all_requests) hfifo_reqready = 1'b0;
               -1-                         
               ==>
               MISSING_ELSE
               ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

194              if (dev_select_outstanding == NWD'(idx)) tl_t_p = tl_u_i[idx];
                 -1-  
                 ==>
                 MISSING_ELSE
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Instance : tb.dut.u_reg.u_socket

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	2	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	2	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
NotOverflowed_A	579465855	579140782	0	0
maxN	3728	3728	0	0

NotOverflowed_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	579465855	579140782	0	0
T1	7764	7699	0	0
T2	8970	8894	0	0
T3	6768	6676	0	0
T29	8730	8638	0	0
T30	30090	30028	0	0
T41	1660	1571	0	0
T42	7641	7565	0	0
T43	23138	23066	0	0
T44	8318	8254	0	0
T45	25309	25235	0	0

maxN

Name	Attempts	Real Successes	Failures	Incomplete
Total	3728	3728	0	0
T1	1	1	0	0
T2	1	1	0	0
T3	1	1	0	0
T29	1	1	0	0
T30	1	1	0	0
T41	1	1	0	0
T42	1	1	0	0
T43	1	1	0	0
T44	1	1	0	0
T45	1	1	0	0