Unified Coverage Report :: Module :: prim_fifo_sync_cnt

Module : prim_fifo_sync_cnt

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
97.10	100.00	91.30			100.00

Source File(s) :
/workspaces/lowrisc/opentitan/scratch/earlgrey_1_0_0_2024_08_20_RC0/rom_ctrl_64kB-sim-vcs/default/sim-vcs/../src/lowrisc_prim_fifo_0/rtl/prim_fifo_sync_cnt.sv

Module self-instances :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
tb.dut.u_tl_adapter_rom.u_sramreqfifo.gen_normal_fifo.u_fifo_cnt	83.09	100.00	82.61			66.67
tb.dut.u_tl_adapter_rom.u_reqfifo.gen_normal_fifo.u_fifo_cnt	97.10	100.00	91.30			100.00
tb.dut.u_tl_adapter_rom.u_rspfifo.gen_normal_fifo.u_fifo_cnt	97.10	100.00	91.30			100.00

---

Module Instance : tb.dut.u_tl_adapter_rom.u_sramreqfifo.gen_normal_fifo.u_fifo_cnt

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
83.09	100.00	82.61			66.67

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
84.82	100.00	82.61	90.00		66.67

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
89.06	100.00	56.25			100.00	100.00	u_sramreqfifo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
gen_secure_ptrs.u_rptr	90.00			90.00
gen_secure_ptrs.u_wptr	90.00			90.00

---

Module Instance : tb.dut.u_tl_adapter_rom.u_reqfifo.gen_normal_fifo.u_fifo_cnt

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
97.10	100.00	91.30			100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
95.33	100.00	91.30	90.00		100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
92.19	100.00	68.75			100.00	100.00	u_reqfifo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
gen_secure_ptrs.u_rptr	90.00			90.00
gen_secure_ptrs.u_wptr	90.00			90.00

---

Module Instance : tb.dut.u_tl_adapter_rom.u_rspfifo.gen_normal_fifo.u_fifo_cnt

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
97.10	100.00	91.30			100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
95.33	100.00	91.30	90.00		100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
94.79	100.00	79.17			100.00	100.00	u_rspfifo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
gen_secure_ptrs.u_rptr	90.00			90.00
gen_secure_ptrs.u_wptr	90.00			90.00

Line Coverage for Module : prim_fifo_sync_cnt

	Line No.	Total	Covered	Percent
TOTAL		12	12	100.00
CONT_ASSIGN	41	1	1	100.00
CONT_ASSIGN	42	1	1	100.00
CONT_ASSIGN	46	1	1	100.00
CONT_ASSIGN	47	1	1	100.00
CONT_ASSIGN	51	1	1	100.00
CONT_ASSIGN	52	1	1	100.00
CONT_ASSIGN	55	1	1	100.00
CONT_ASSIGN	56	1	1	100.00
CONT_ASSIGN	59	1	1	100.00
CONT_ASSIGN	61	1	1	100.00
CONT_ASSIGN	68	1	1	100.00
CONT_ASSIGN	109	1	1	100.00

40                        // Derive real read and write pointers by truncating the internal 'wrap' pointers.
41         1/1            assign wptr_o = wptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
42         1/1            assign rptr_o = rptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
43                      
44                        // Extract the MSB of the 'wrap' pointers.
45                        logic wptr_wrap_msb, rptr_wrap_msb;
46         1/1            assign wptr_wrap_msb = wptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
47         1/1            assign rptr_wrap_msb = rptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
48                      
49                        // Wrap pointers when they have reached the maximum value and are about to get incremented.
50                        logic wptr_wrap_set, rptr_wrap_set;
51         1/1            assign wptr_wrap_set = incr_wptr_i & (wptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
52         1/1            assign rptr_wrap_set = incr_rptr_i & (rptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
53                      
54                        // When wrapping, invert the MSB and reset all lower bits to zero.
55         1/1            assign wptr_wrap_set_cnt = {~wptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
56         1/1            assign rptr_wrap_set_cnt = {~rptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
57                      
58                        // Full when both 'wrap' counters have a different MSB but all lower bits are equal.
59         1/1            assign full_o = wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW-1){1'b0}}});
           Tests:       T1 T2 T3 
60                        // Empty when both 'wrap' counters are equal in all bits including the MSB.
61         1/1            assign empty_o = wptr_wrap_cnt_q == rptr_wrap_cnt_q;
           Tests:       T1 T2 T3 
62                      
63                        // The current depth is equal to:
64                        // - when full: the maximum depth;
65                        // - when both or none of the 'wrap' pointers are wrapped: the difference of the real pointers;
66                        // - when only one of the two 'wrap' pointers is wrapped: the maximum depth minus the difference
67                        //   of the real pointers.
68         1/1            assign depth_o = full_o                         ? DepthW'(Depth) :
           Tests:       T1 T2 T3 
69                                         wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
70                                         DepthW'(Depth) - DepthW'(rptr_o) + DepthW'(wptr_o);
71                      
72                        if (Secure) begin : gen_secure_ptrs
73                          logic wptr_err;
74                          prim_count #(
75                            .Width(WrapPtrW)
76                          ) u_wptr (
77                            .clk_i,
78                            .rst_ni,
79                            .clr_i,
80                            .set_i(wptr_wrap_set),
81                            .set_cnt_i(wptr_wrap_set_cnt),
82                            .incr_en_i(incr_wptr_i),
83                            .decr_en_i(1'b0),
84                            .step_i(WrapPtrW'(1'b1)),
85                            .commit_i(1'b1),
86                            .cnt_o(wptr_wrap_cnt_q),
87                            .cnt_after_commit_o(),
88                            .err_o(wptr_err)
89                          );
90                      
91                          logic rptr_err;
92                          prim_count #(
93                            .Width(WrapPtrW)
94                          ) u_rptr (
95                            .clk_i,
96                            .rst_ni,
97                            .clr_i,
98                            .set_i(rptr_wrap_set),
99                            .set_cnt_i(rptr_wrap_set_cnt),
100                           .incr_en_i(incr_rptr_i),
101                           .decr_en_i(1'b0),
102                           .step_i(WrapPtrW'(1'b1)),
103                           .commit_i(1'b1),
104                           .cnt_o(rptr_wrap_cnt_q),
105                           .cnt_after_commit_o(),
106                           .err_o(rptr_err)
107                         );
108                     
109        1/1              assign err_o = wptr_err | rptr_err;
           Tests:       T1 T2 T3 

---

Cond Coverage for Module : prim_fifo_sync_cnt

	Total	Covered	Percent
Conditions	23	21	91.30
Logical	23	21	91.30
Non-Logical	0	0
Event	0	0

 LINE       51
 EXPRESSION (incr_wptr_i & (wptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       51
 SUB-EXPRESSION (wptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       52
 EXPRESSION (incr_rptr_i & (rptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       52
 SUB-EXPRESSION (rptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       59
 EXPRESSION (wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW - 1) {1'b0}}}))
            ------------------------------------1-----------------------------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       61
 EXPRESSION (wptr_wrap_cnt_q == rptr_wrap_cnt_q)
            ------------------1-----------------

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

 LINE       68
 EXPRESSION (full_o ? (2'(Depth)) : ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o)))))
             ---1--

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       68
 SUB-EXPRESSION ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o))))
                 ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       68
 SUB-EXPRESSION (wptr_wrap_msb == rptr_wrap_msb)
                ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       109
 EXPRESSION (gen_secure_ptrs.wptr_err | gen_secure_ptrs.rptr_err)
             ------------1-----------   ------------2-----------

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

---

Branch Coverage for Module : prim_fifo_sync_cnt

	Line No.	Total	Covered	Percent
Branches		3	3	100.00
TERNARY	68	3	3	100.00

68           assign depth_o = full_o                         ? DepthW'(Depth) :
                                                             -1-  
                                                             ==>  
69                            wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
                                                             -2-  
                                                             ==>  
                                                             ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T4,T13,T21
0	1	Covered	T1,T2,T3
0	0	Covered	T3,T4,T5

Line Coverage for Instance : tb.dut.u_tl_adapter_rom.u_sramreqfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
TOTAL		12	12	100.00
CONT_ASSIGN	41	1	1	100.00
CONT_ASSIGN	42	1	1	100.00
CONT_ASSIGN	46	1	1	100.00
CONT_ASSIGN	47	1	1	100.00
CONT_ASSIGN	51	1	1	100.00
CONT_ASSIGN	52	1	1	100.00
CONT_ASSIGN	55	1	1	100.00
CONT_ASSIGN	56	1	1	100.00
CONT_ASSIGN	59	1	1	100.00
CONT_ASSIGN	61	1	1	100.00
CONT_ASSIGN	68	1	1	100.00
CONT_ASSIGN	109	1	1	100.00

40                        // Derive real read and write pointers by truncating the internal 'wrap' pointers.
41         1/1            assign wptr_o = wptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
42         1/1            assign rptr_o = rptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
43                      
44                        // Extract the MSB of the 'wrap' pointers.
45                        logic wptr_wrap_msb, rptr_wrap_msb;
46         1/1            assign wptr_wrap_msb = wptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
47         1/1            assign rptr_wrap_msb = rptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
48                      
49                        // Wrap pointers when they have reached the maximum value and are about to get incremented.
50                        logic wptr_wrap_set, rptr_wrap_set;
51         1/1            assign wptr_wrap_set = incr_wptr_i & (wptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
52         1/1            assign rptr_wrap_set = incr_rptr_i & (rptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
53                      
54                        // When wrapping, invert the MSB and reset all lower bits to zero.
55         1/1            assign wptr_wrap_set_cnt = {~wptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
56         1/1            assign rptr_wrap_set_cnt = {~rptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
57                      
58                        // Full when both 'wrap' counters have a different MSB but all lower bits are equal.
59         1/1            assign full_o = wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW-1){1'b0}}});
           Tests:       T1 T2 T3 
60                        // Empty when both 'wrap' counters are equal in all bits including the MSB.
61         1/1            assign empty_o = wptr_wrap_cnt_q == rptr_wrap_cnt_q;
           Tests:       T1 T2 T3 
62                      
63                        // The current depth is equal to:
64                        // - when full: the maximum depth;
65                        // - when both or none of the 'wrap' pointers are wrapped: the difference of the real pointers;
66                        // - when only one of the two 'wrap' pointers is wrapped: the maximum depth minus the difference
67                        //   of the real pointers.
68         1/1            assign depth_o = full_o                         ? DepthW'(Depth) :
           Tests:       T1 T2 T3 
69                                         wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
70                                         DepthW'(Depth) - DepthW'(rptr_o) + DepthW'(wptr_o);
71                      
72                        if (Secure) begin : gen_secure_ptrs
73                          logic wptr_err;
74                          prim_count #(
75                            .Width(WrapPtrW)
76                          ) u_wptr (
77                            .clk_i,
78                            .rst_ni,
79                            .clr_i,
80                            .set_i(wptr_wrap_set),
81                            .set_cnt_i(wptr_wrap_set_cnt),
82                            .incr_en_i(incr_wptr_i),
83                            .decr_en_i(1'b0),
84                            .step_i(WrapPtrW'(1'b1)),
85                            .commit_i(1'b1),
86                            .cnt_o(wptr_wrap_cnt_q),
87                            .cnt_after_commit_o(),
88                            .err_o(wptr_err)
89                          );
90                      
91                          logic rptr_err;
92                          prim_count #(
93                            .Width(WrapPtrW)
94                          ) u_rptr (
95                            .clk_i,
96                            .rst_ni,
97                            .clr_i,
98                            .set_i(rptr_wrap_set),
99                            .set_cnt_i(rptr_wrap_set_cnt),
100                           .incr_en_i(incr_rptr_i),
101                           .decr_en_i(1'b0),
102                           .step_i(WrapPtrW'(1'b1)),
103                           .commit_i(1'b1),
104                           .cnt_o(rptr_wrap_cnt_q),
105                           .cnt_after_commit_o(),
106                           .err_o(rptr_err)
107                         );
108                     
109        1/1              assign err_o = wptr_err | rptr_err;
           Tests:       T1 T2 T3 

---

Cond Coverage for Instance : tb.dut.u_tl_adapter_rom.u_sramreqfifo.gen_normal_fifo.u_fifo_cnt

	Total	Covered	Percent
Conditions	23	19	82.61
Logical	23	19	82.61
Non-Logical	0	0
Event	0	0

 LINE       51
 EXPRESSION (incr_wptr_i & (wptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       51
 SUB-EXPRESSION (wptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       52
 EXPRESSION (incr_rptr_i & (rptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       52
 SUB-EXPRESSION (rptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       59
 EXPRESSION (wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW - 1) {1'b0}}}))
            ------------------------------------1-----------------------------------

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

 LINE       61
 EXPRESSION (wptr_wrap_cnt_q == rptr_wrap_cnt_q)
            ------------------1-----------------

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

 LINE       68
 EXPRESSION (full_o ? (2'(Depth)) : ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o)))))
             ---1--

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

 LINE       68
 SUB-EXPRESSION ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o))))
                 ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       68
 SUB-EXPRESSION (wptr_wrap_msb == rptr_wrap_msb)
                ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       109
 EXPRESSION (gen_secure_ptrs.wptr_err | gen_secure_ptrs.rptr_err)
             ------------1-----------   ------------2-----------

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

---

Branch Coverage for Instance : tb.dut.u_tl_adapter_rom.u_sramreqfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
Branches		3	2	66.67
TERNARY	68	3	2	66.67

68           assign depth_o = full_o                         ? DepthW'(Depth) :
                                                             -1-  
                                                             ==>  
69                            wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
                                                             -2-  
                                                             ==>  
                                                             ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Not Covered
0	1	Covered	T1,T2,T3
0	0	Covered	T3,T4,T5

Line Coverage for Instance : tb.dut.u_tl_adapter_rom.u_reqfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
TOTAL		12	12	100.00
CONT_ASSIGN	41	1	1	100.00
CONT_ASSIGN	42	1	1	100.00
CONT_ASSIGN	46	1	1	100.00
CONT_ASSIGN	47	1	1	100.00
CONT_ASSIGN	51	1	1	100.00
CONT_ASSIGN	52	1	1	100.00
CONT_ASSIGN	55	1	1	100.00
CONT_ASSIGN	56	1	1	100.00
CONT_ASSIGN	59	1	1	100.00
CONT_ASSIGN	61	1	1	100.00
CONT_ASSIGN	68	1	1	100.00
CONT_ASSIGN	109	1	1	100.00

40                        // Derive real read and write pointers by truncating the internal 'wrap' pointers.
41         1/1            assign wptr_o = wptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
42         1/1            assign rptr_o = rptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
43                      
44                        // Extract the MSB of the 'wrap' pointers.
45                        logic wptr_wrap_msb, rptr_wrap_msb;
46         1/1            assign wptr_wrap_msb = wptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
47         1/1            assign rptr_wrap_msb = rptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
48                      
49                        // Wrap pointers when they have reached the maximum value and are about to get incremented.
50                        logic wptr_wrap_set, rptr_wrap_set;
51         1/1            assign wptr_wrap_set = incr_wptr_i & (wptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
52         1/1            assign rptr_wrap_set = incr_rptr_i & (rptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
53                      
54                        // When wrapping, invert the MSB and reset all lower bits to zero.
55         1/1            assign wptr_wrap_set_cnt = {~wptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
56         1/1            assign rptr_wrap_set_cnt = {~rptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
57                      
58                        // Full when both 'wrap' counters have a different MSB but all lower bits are equal.
59         1/1            assign full_o = wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW-1){1'b0}}});
           Tests:       T1 T2 T3 
60                        // Empty when both 'wrap' counters are equal in all bits including the MSB.
61         1/1            assign empty_o = wptr_wrap_cnt_q == rptr_wrap_cnt_q;
           Tests:       T1 T2 T3 
62                      
63                        // The current depth is equal to:
64                        // - when full: the maximum depth;
65                        // - when both or none of the 'wrap' pointers are wrapped: the difference of the real pointers;
66                        // - when only one of the two 'wrap' pointers is wrapped: the maximum depth minus the difference
67                        //   of the real pointers.
68         1/1            assign depth_o = full_o                         ? DepthW'(Depth) :
           Tests:       T1 T2 T3 
69                                         wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
70                                         DepthW'(Depth) - DepthW'(rptr_o) + DepthW'(wptr_o);
71                      
72                        if (Secure) begin : gen_secure_ptrs
73                          logic wptr_err;
74                          prim_count #(
75                            .Width(WrapPtrW)
76                          ) u_wptr (
77                            .clk_i,
78                            .rst_ni,
79                            .clr_i,
80                            .set_i(wptr_wrap_set),
81                            .set_cnt_i(wptr_wrap_set_cnt),
82                            .incr_en_i(incr_wptr_i),
83                            .decr_en_i(1'b0),
84                            .step_i(WrapPtrW'(1'b1)),
85                            .commit_i(1'b1),
86                            .cnt_o(wptr_wrap_cnt_q),
87                            .cnt_after_commit_o(),
88                            .err_o(wptr_err)
89                          );
90                      
91                          logic rptr_err;
92                          prim_count #(
93                            .Width(WrapPtrW)
94                          ) u_rptr (
95                            .clk_i,
96                            .rst_ni,
97                            .clr_i,
98                            .set_i(rptr_wrap_set),
99                            .set_cnt_i(rptr_wrap_set_cnt),
100                           .incr_en_i(incr_rptr_i),
101                           .decr_en_i(1'b0),
102                           .step_i(WrapPtrW'(1'b1)),
103                           .commit_i(1'b1),
104                           .cnt_o(rptr_wrap_cnt_q),
105                           .cnt_after_commit_o(),
106                           .err_o(rptr_err)
107                         );
108                     
109        1/1              assign err_o = wptr_err | rptr_err;
           Tests:       T1 T2 T3 

---

Cond Coverage for Instance : tb.dut.u_tl_adapter_rom.u_reqfifo.gen_normal_fifo.u_fifo_cnt

	Total	Covered	Percent
Conditions	23	21	91.30
Logical	23	21	91.30
Non-Logical	0	0
Event	0	0

 LINE       51
 EXPRESSION (incr_wptr_i & (wptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       51
 SUB-EXPRESSION (wptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       52
 EXPRESSION (incr_rptr_i & (rptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       52
 SUB-EXPRESSION (rptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       59
 EXPRESSION (wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW - 1) {1'b0}}}))
            ------------------------------------1-----------------------------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       61
 EXPRESSION (wptr_wrap_cnt_q == rptr_wrap_cnt_q)
            ------------------1-----------------

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

 LINE       68
 EXPRESSION (full_o ? (2'(Depth)) : ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o)))))
             ---1--

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       68
 SUB-EXPRESSION ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o))))
                 ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       68
 SUB-EXPRESSION (wptr_wrap_msb == rptr_wrap_msb)
                ----------------1---------------

-1-	Status	Tests
0	Covered	T3,T4,T5
1	Covered	T1,T2,T3

 LINE       109
 EXPRESSION (gen_secure_ptrs.wptr_err | gen_secure_ptrs.rptr_err)
             ------------1-----------   ------------2-----------

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

---

Branch Coverage for Instance : tb.dut.u_tl_adapter_rom.u_reqfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
Branches		3	3	100.00
TERNARY	68	3	3	100.00

68           assign depth_o = full_o                         ? DepthW'(Depth) :
                                                             -1-  
                                                             ==>  
69                            wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
                                                             -2-  
                                                             ==>  
                                                             ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T4,T13,T21
0	1	Covered	T1,T2,T3
0	0	Covered	T3,T4,T5

Line Coverage for Instance : tb.dut.u_tl_adapter_rom.u_rspfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
TOTAL		12	12	100.00
CONT_ASSIGN	41	1	1	100.00
CONT_ASSIGN	42	1	1	100.00
CONT_ASSIGN	46	1	1	100.00
CONT_ASSIGN	47	1	1	100.00
CONT_ASSIGN	51	1	1	100.00
CONT_ASSIGN	52	1	1	100.00
CONT_ASSIGN	55	1	1	100.00
CONT_ASSIGN	56	1	1	100.00
CONT_ASSIGN	59	1	1	100.00
CONT_ASSIGN	61	1	1	100.00
CONT_ASSIGN	68	1	1	100.00
CONT_ASSIGN	109	1	1	100.00

40                        // Derive real read and write pointers by truncating the internal 'wrap' pointers.
41         1/1            assign wptr_o = wptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
42         1/1            assign rptr_o = rptr_wrap_cnt_q[PtrW-1:0];
           Tests:       T1 T2 T3 
43                      
44                        // Extract the MSB of the 'wrap' pointers.
45                        logic wptr_wrap_msb, rptr_wrap_msb;
46         1/1            assign wptr_wrap_msb = wptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
47         1/1            assign rptr_wrap_msb = rptr_wrap_cnt_q[WrapPtrW-1];
           Tests:       T1 T2 T3 
48                      
49                        // Wrap pointers when they have reached the maximum value and are about to get incremented.
50                        logic wptr_wrap_set, rptr_wrap_set;
51         1/1            assign wptr_wrap_set = incr_wptr_i & (wptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
52         1/1            assign rptr_wrap_set = incr_rptr_i & (rptr_o == PtrW'(Depth-1));
           Tests:       T1 T2 T3 
53                      
54                        // When wrapping, invert the MSB and reset all lower bits to zero.
55         1/1            assign wptr_wrap_set_cnt = {~wptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
56         1/1            assign rptr_wrap_set_cnt = {~rptr_wrap_msb, {(WrapPtrW-1){1'b0}}};
           Tests:       T1 T2 T3 
57                      
58                        // Full when both 'wrap' counters have a different MSB but all lower bits are equal.
59         1/1            assign full_o = wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW-1){1'b0}}});
           Tests:       T1 T2 T3 
60                        // Empty when both 'wrap' counters are equal in all bits including the MSB.
61         1/1            assign empty_o = wptr_wrap_cnt_q == rptr_wrap_cnt_q;
           Tests:       T1 T2 T3 
62                      
63                        // The current depth is equal to:
64                        // - when full: the maximum depth;
65                        // - when both or none of the 'wrap' pointers are wrapped: the difference of the real pointers;
66                        // - when only one of the two 'wrap' pointers is wrapped: the maximum depth minus the difference
67                        //   of the real pointers.
68         1/1            assign depth_o = full_o                         ? DepthW'(Depth) :
           Tests:       T1 T2 T3 
69                                         wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
70                                         DepthW'(Depth) - DepthW'(rptr_o) + DepthW'(wptr_o);
71                      
72                        if (Secure) begin : gen_secure_ptrs
73                          logic wptr_err;
74                          prim_count #(
75                            .Width(WrapPtrW)
76                          ) u_wptr (
77                            .clk_i,
78                            .rst_ni,
79                            .clr_i,
80                            .set_i(wptr_wrap_set),
81                            .set_cnt_i(wptr_wrap_set_cnt),
82                            .incr_en_i(incr_wptr_i),
83                            .decr_en_i(1'b0),
84                            .step_i(WrapPtrW'(1'b1)),
85                            .commit_i(1'b1),
86                            .cnt_o(wptr_wrap_cnt_q),
87                            .cnt_after_commit_o(),
88                            .err_o(wptr_err)
89                          );
90                      
91                          logic rptr_err;
92                          prim_count #(
93                            .Width(WrapPtrW)
94                          ) u_rptr (
95                            .clk_i,
96                            .rst_ni,
97                            .clr_i,
98                            .set_i(rptr_wrap_set),
99                            .set_cnt_i(rptr_wrap_set_cnt),
100                           .incr_en_i(incr_rptr_i),
101                           .decr_en_i(1'b0),
102                           .step_i(WrapPtrW'(1'b1)),
103                           .commit_i(1'b1),
104                           .cnt_o(rptr_wrap_cnt_q),
105                           .cnt_after_commit_o(),
106                           .err_o(rptr_err)
107                         );
108                     
109        1/1              assign err_o = wptr_err | rptr_err;
           Tests:       T1 T2 T3 

---

Cond Coverage for Instance : tb.dut.u_tl_adapter_rom.u_rspfifo.gen_normal_fifo.u_fifo_cnt

	Total	Covered	Percent
Conditions	23	21	91.30
Logical	23	21	91.30
Non-Logical	0	0
Event	0	0

 LINE       51
 EXPRESSION (incr_wptr_i & (wptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       51
 SUB-EXPRESSION (wptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       52
 EXPRESSION (incr_rptr_i & (rptr_o == 1'((Depth - 1))))
             -----1-----   -------------2-------------

-1-	-2-	Status	Tests
0	1	Covered	T3,T4,T5
1	0	Covered	T3,T4,T5
1	1	Covered	T3,T4,T5

 LINE       52
 SUB-EXPRESSION (rptr_o == 1'((Depth - 1)))
                -------------1-------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T3,T4,T5

 LINE       59
 EXPRESSION (wptr_wrap_cnt_q == (rptr_wrap_cnt_q ^ {1'b1, {(WrapPtrW - 1) {1'b0}}}))
            ------------------------------------1-----------------------------------

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       61
 EXPRESSION (wptr_wrap_cnt_q == rptr_wrap_cnt_q)
            ------------------1-----------------

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

 LINE       68
 EXPRESSION (full_o ? (2'(Depth)) : ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o)))))
             ---1--

-1-	Status	Tests
0	Covered	T1,T2,T3
1	Covered	T4,T13,T21

 LINE       68
 SUB-EXPRESSION ((wptr_wrap_msb == rptr_wrap_msb) ? ((2'(wptr_o) - 2'(rptr_o))) : (((2'(Depth) - 2'(rptr_o)) + 2'(wptr_o))))
                 ----------------1---------------

-1-	Status	Tests
0	Covered	T4,T13,T21
1	Covered	T1,T2,T3

 LINE       68
 SUB-EXPRESSION (wptr_wrap_msb == rptr_wrap_msb)
                ----------------1---------------

-1-	Status	Tests
0	Covered	T4,T13,T21
1	Covered	T1,T2,T3

 LINE       109
 EXPRESSION (gen_secure_ptrs.wptr_err | gen_secure_ptrs.rptr_err)
             ------------1-----------   ------------2-----------

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

---

Branch Coverage for Instance : tb.dut.u_tl_adapter_rom.u_rspfifo.gen_normal_fifo.u_fifo_cnt

	Line No.	Total	Covered	Percent
Branches		3	3	100.00
TERNARY	68	3	3	100.00

68           assign depth_o = full_o                         ? DepthW'(Depth) :
                                                             -1-  
                                                             ==>  
69                            wptr_wrap_msb == rptr_wrap_msb ? DepthW'(wptr_o) - DepthW'(rptr_o) :
                                                             -2-  
                                                             ==>  
                                                             ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T4,T13,T21
0	1	Covered	T1,T2,T3
0	0	Covered	T4,T13,T21