Added clock and gtkwave integration

This commit is contained in:
(Tim) Efthymios Kritikos 2023-02-07 17:52:02 +00:00
parent b749a5610e
commit d8f6c595a2
7 changed files with 718 additions and 1 deletions

2
.gitignore vendored
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@ -1,2 +1,4 @@
*.vvp
*.vpi
*.lx2
*.o

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@ -12,4 +12,4 @@ simulate: ${OBJECTS}
iverilog $^ -o $@
clean:
rm ${OBJECTS} -f
rm ${OBJECTS} hello.vpi -f

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@ -0,0 +1,18 @@
SOURCES=clock.v clock-tb.v
VPP=clock.vpp
.PHONY: run
run: ${VPP}
vvp ${VPP}
.PHONY: wave
wave: ${VPP}
vvp ${VPP} -lxt2
gtkwave test.lx2 gtkwave_savefile.gtkw
${VPP} : ${SOURCES}
iverilog -g2012 $^ -o $@
.PHONY: clean
clean:
rm -f ${VPP} test.lx2

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@ -0,0 +1,28 @@
module tb;
wire clk1;
wire clk2;
wire clk3;
wire clk4;
reg enable;
reg [7:0] delay;
clock_gen u0(enable, clk1);
clock_gen #(.FREQ(100000)) u1(enable, clk2);
clock_gen #(.FREQ(200000)) u2(enable, clk3);
clock_gen #(.FREQ(400000)) u3(enable, clk4);
integer i ;
initial begin
$dumpfile("test.lx2");
$dumpvars(0,u1,u2,u3);
enable <= 0;
for ( i = 0; i < 10; i=i+1) begin
delay = $random;
#(delay) enable <= ~enable;
$display("i=%0d delay=%0d", i, delay);
#50;
end
#50 $finish;
end
endmodule

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@ -0,0 +1,61 @@
`timescale 1ns/1ps
module clock_gen (input enable, output reg clk);
parameter FREQ = 1000; // in HZ
parameter PHASE = 0; // in degrees
parameter DUTY = 50; // in percentage
real clk_pd = 1.0/FREQ * 1000000; // convert to ns
real clk_on = DUTY/100.0 * clk_pd;
real clk_off = (100.0 - DUTY)/100.0 * clk_pd;
real quarter = clk_pd/4;
real start_dly = quarter * PHASE/90;
reg start_clk;
initial begin
$display("FREQ = %0d kHz", FREQ);
$display("PHASE = %0d deg", PHASE);
$display("DUTY = %0d %%", DUTY);
$display("PERIOD = %0.1f ms", clk_pd);
$display("CLK_ON = %0.1f ms", clk_on);
$display("CLK_OFF = %0.1f ms", clk_off);
$display("QUARTER = %0.1f ms", quarter);
$display("START_DLY = %0.1f ms", start_dly);
end
// Initialize variables to zero
initial begin
clk <= 0;
start_clk <= 0;
end
// When clock is enabled, delay driving the clock to one in order
// to achieve the phase effect. start_dly is configured to the
// correct delay for the configured phase. When enable is 0,
// allow enough time to complete the current clock period
always @ (posedge enable or negedge enable) begin
if (enable) begin
#(start_dly) start_clk = 1;
end else begin
#(start_dly) start_clk = 0;
end
end
// Achieve duty cycle by a skewed clock on/off time and let this
// run as long as the clocks are turned on.
always @(posedge start_clk) begin
if (start_clk) begin
clk = 1;
while (start_clk) begin
#(clk_on) clk = 0;
#(clk_off) clk = 1;
end
clk = 0;
end
end
endmodule

581
verilog_iverilog/clock/clock.vpp Executable file
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@ -0,0 +1,581 @@
#! /usr/bin/vvp
:ivl_version "11.0 (stable)";
:ivl_delay_selection "TYPICAL";
:vpi_time_precision - 12;
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/system.vpi";
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/vhdl_sys.vpi";
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/vhdl_textio.vpi";
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/v2005_math.vpi";
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/va_math.vpi";
:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/v2009.vpi";
S_0x5610fda4b6d0 .scope package, "$unit" "$unit" 2 1;
.timescale 0 0;
S_0x5610fda4b860 .scope module, "tb" "tb" 3 1;
.timescale -9 -12;
v0x5610fda78da0_0 .net "clk1", 0 0, v0x5610fda53880_0; 1 drivers
v0x5610fda78e40_0 .net "clk2", 0 0, v0x5610fda76fe0_0; 1 drivers
v0x5610fda78f10_0 .net "clk3", 0 0, v0x5610fda77b40_0; 1 drivers
v0x5610fda79010_0 .net "clk4", 0 0, v0x5610fda786e0_0; 1 drivers
v0x5610fda790e0_0 .var "delay", 7 0;
v0x5610fda791d0_0 .var "enable", 0 0;
v0x5610fda79270_0 .var/i "i", 31 0;
S_0x5610fda44700 .scope module, "u0" "clock_gen" 3 9, 4 3 0, S_0x5610fda4b860;
.timescale -9 -12;
.port_info 0 /INPUT 1 "enable";
.port_info 1 /OUTPUT 1 "clk";
P_0x5610fda0ca60 .param/l "DUTY" 0 4 7, +C4<00000000000000000000000000110010>;
P_0x5610fda0caa0 .param/l "FREQ" 0 4 5, +C4<00000000000000000000001111101000>;
P_0x5610fda0cae0 .param/l "PHASE" 0 4 6, +C4<00000000000000000000000000000000>;
v0x5610fda53880_0 .var "clk", 0 0;
v0x5610fda53920_0 .var/real "clk_off", 0 0;
v0x5610fda42f50_0 .var/real "clk_on", 0 0;
v0x5610fda42ff0_0 .var/real "clk_pd", 0 0;
v0x5610fda3e7e0_0 .net "enable", 0 0, v0x5610fda791d0_0; 1 drivers
v0x5610fda3e880_0 .var/real "quarter", 0 0;
v0x5610fda769f0_0 .var "start_clk", 0 0;
v0x5610fda76ab0_0 .var/real "start_dly", 0 0;
E_0x5610fda468c0 .event posedge, v0x5610fda769f0_0;
E_0x5610fda47160/0 .event negedge, v0x5610fda3e7e0_0;
E_0x5610fda47160/1 .event posedge, v0x5610fda3e7e0_0;
E_0x5610fda47160 .event/or E_0x5610fda47160/0, E_0x5610fda47160/1;
S_0x5610fda76bd0 .scope module, "u1" "clock_gen" 3 10, 4 3 0, S_0x5610fda4b860;
.timescale -9 -12;
.port_info 0 /INPUT 1 "enable";
.port_info 1 /OUTPUT 1 "clk";
P_0x5610fda76db0 .param/l "DUTY" 0 4 7, +C4<00000000000000000000000000110010>;
P_0x5610fda76df0 .param/l "FREQ" 0 4 5, +C4<00000000000000011000011010100000>;
P_0x5610fda76e30 .param/l "PHASE" 0 4 6, +C4<00000000000000000000000000000000>;
v0x5610fda76fe0_0 .var "clk", 0 0;
v0x5610fda770c0_0 .var/real "clk_off", 0 0;
v0x5610fda77180_0 .var/real "clk_on", 0 0;
v0x5610fda77250_0 .var/real "clk_pd", 0 0;
v0x5610fda77310_0 .net "enable", 0 0, v0x5610fda791d0_0; alias, 1 drivers
v0x5610fda77400_0 .var/real "quarter", 0 0;
v0x5610fda774a0_0 .var "start_clk", 0 0;
v0x5610fda77560_0 .var/real "start_dly", 0 0;
E_0x5610fda2f6d0 .event posedge, v0x5610fda774a0_0;
S_0x5610fda77680 .scope module, "u2" "clock_gen" 3 11, 4 3 0, S_0x5610fda4b860;
.timescale -9 -12;
.port_info 0 /INPUT 1 "enable";
.port_info 1 /OUTPUT 1 "clk";
P_0x5610fda77890 .param/l "DUTY" 0 4 7, +C4<00000000000000000000000000110010>;
P_0x5610fda778d0 .param/l "FREQ" 0 4 5, +C4<00000000000000110000110101000000>;
P_0x5610fda77910 .param/l "PHASE" 0 4 6, +C4<00000000000000000000000000000000>;
v0x5610fda77b40_0 .var "clk", 0 0;
v0x5610fda77c20_0 .var/real "clk_off", 0 0;
v0x5610fda77ce0_0 .var/real "clk_on", 0 0;
v0x5610fda77db0_0 .var/real "clk_pd", 0 0;
v0x5610fda77e70_0 .net "enable", 0 0, v0x5610fda791d0_0; alias, 1 drivers
v0x5610fda77fb0_0 .var/real "quarter", 0 0;
v0x5610fda78070_0 .var "start_clk", 0 0;
v0x5610fda78130_0 .var/real "start_dly", 0 0;
E_0x5610fda77ae0 .event posedge, v0x5610fda78070_0;
S_0x5610fda78250 .scope module, "u3" "clock_gen" 3 12, 4 3 0, S_0x5610fda4b860;
.timescale -9 -12;
.port_info 0 /INPUT 1 "enable";
.port_info 1 /OUTPUT 1 "clk";
P_0x5610fda78430 .param/l "DUTY" 0 4 7, +C4<00000000000000000000000000110010>;
P_0x5610fda78470 .param/l "FREQ" 0 4 5, +C4<00000000000001100001101010000000>;
P_0x5610fda784b0 .param/l "PHASE" 0 4 6, +C4<00000000000000000000000000000000>;
v0x5610fda786e0_0 .var "clk", 0 0;
v0x5610fda787c0_0 .var/real "clk_off", 0 0;
v0x5610fda78880_0 .var/real "clk_on", 0 0;
v0x5610fda78950_0 .var/real "clk_pd", 0 0;
v0x5610fda78a10_0 .net "enable", 0 0, v0x5610fda791d0_0; alias, 1 drivers
v0x5610fda78b00_0 .var/real "quarter", 0 0;
v0x5610fda78bc0_0 .var "start_clk", 0 0;
v0x5610fda78c80_0 .var/real "start_dly", 0 0;
E_0x5610fda78660 .event posedge, v0x5610fda78bc0_0;
.scope S_0x5610fda44700;
T_0 ;
%pushi/real 2097152000, 4075; load=1000.00
%store/real v0x5610fda42ff0_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda42ff0_0;
%mul/wr;
%store/real v0x5610fda42f50_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda42ff0_0;
%mul/wr;
%store/real v0x5610fda53920_0;
%load/real v0x5610fda42ff0_0;
%pushi/vec4 4, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda3e880_0;
%load/real v0x5610fda3e880_0;
%pushi/vec4 0, 0, 32;
%cvt/rv/s;
%mul/wr;
%pushi/vec4 90, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda76ab0_0;
%end;
.thread T_0, $init;
.scope S_0x5610fda44700;
T_1 ;
%vpi_call/w 4 18 "$display", "FREQ = %0d kHz", P_0x5610fda0caa0 {0 0 0};
%vpi_call/w 4 19 "$display", "PHASE = %0d deg", P_0x5610fda0cae0 {0 0 0};
%vpi_call/w 4 20 "$display", "DUTY = %0d %%", P_0x5610fda0ca60 {0 0 0};
%vpi_call/w 4 22 "$display", "PERIOD = %0.1f ms", v0x5610fda42ff0_0 {0 0 0};
%vpi_call/w 4 23 "$display", "CLK_ON = %0.1f ms", v0x5610fda42f50_0 {0 0 0};
%vpi_call/w 4 24 "$display", "CLK_OFF = %0.1f ms", v0x5610fda53920_0 {0 0 0};
%vpi_call/w 4 25 "$display", "QUARTER = %0.1f ms", v0x5610fda3e880_0 {0 0 0};
%vpi_call/w 4 26 "$display", "START_DLY = %0.1f ms", v0x5610fda76ab0_0 {0 0 0};
%end;
.thread T_1;
.scope S_0x5610fda44700;
T_2 ;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda53880_0, 0;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda769f0_0, 0;
%end;
.thread T_2;
.scope S_0x5610fda44700;
T_3 ;
%wait E_0x5610fda47160;
%load/vec4 v0x5610fda3e7e0_0;
%flag_set/vec4 8;
%jmp/0xz T_3.0, 8;
%load/real v0x5610fda76ab0_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda769f0_0, 0, 1;
%jmp T_3.1;
T_3.0 ;
%load/real v0x5610fda76ab0_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda769f0_0, 0, 1;
T_3.1 ;
%jmp T_3;
.thread T_3;
.scope S_0x5610fda44700;
T_4 ;
%wait E_0x5610fda468c0;
%load/vec4 v0x5610fda769f0_0;
%flag_set/vec4 8;
%jmp/0xz T_4.0, 8;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda53880_0, 0, 1;
T_4.2 ;
%load/vec4 v0x5610fda769f0_0;
%flag_set/vec4 8;
%jmp/0xz T_4.3, 8;
%load/real v0x5610fda42f50_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda53880_0, 0, 1;
%load/real v0x5610fda53920_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda53880_0, 0, 1;
%jmp T_4.2;
T_4.3 ;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda53880_0, 0, 1;
T_4.0 ;
%jmp T_4;
.thread T_4;
.scope S_0x5610fda76bd0;
T_5 ;
%pushi/real 1342177280, 4069; load=10.0000
%store/real v0x5610fda77250_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda77250_0;
%mul/wr;
%store/real v0x5610fda77180_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda77250_0;
%mul/wr;
%store/real v0x5610fda770c0_0;
%load/real v0x5610fda77250_0;
%pushi/vec4 4, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda77400_0;
%load/real v0x5610fda77400_0;
%pushi/vec4 0, 0, 32;
%cvt/rv/s;
%mul/wr;
%pushi/vec4 90, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda77560_0;
%end;
.thread T_5, $init;
.scope S_0x5610fda76bd0;
T_6 ;
%vpi_call/w 4 18 "$display", "FREQ = %0d kHz", P_0x5610fda76df0 {0 0 0};
%vpi_call/w 4 19 "$display", "PHASE = %0d deg", P_0x5610fda76e30 {0 0 0};
%vpi_call/w 4 20 "$display", "DUTY = %0d %%", P_0x5610fda76db0 {0 0 0};
%vpi_call/w 4 22 "$display", "PERIOD = %0.1f ms", v0x5610fda77250_0 {0 0 0};
%vpi_call/w 4 23 "$display", "CLK_ON = %0.1f ms", v0x5610fda77180_0 {0 0 0};
%vpi_call/w 4 24 "$display", "CLK_OFF = %0.1f ms", v0x5610fda770c0_0 {0 0 0};
%vpi_call/w 4 25 "$display", "QUARTER = %0.1f ms", v0x5610fda77400_0 {0 0 0};
%vpi_call/w 4 26 "$display", "START_DLY = %0.1f ms", v0x5610fda77560_0 {0 0 0};
%end;
.thread T_6;
.scope S_0x5610fda76bd0;
T_7 ;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda76fe0_0, 0;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda774a0_0, 0;
%end;
.thread T_7;
.scope S_0x5610fda76bd0;
T_8 ;
%wait E_0x5610fda47160;
%load/vec4 v0x5610fda77310_0;
%flag_set/vec4 8;
%jmp/0xz T_8.0, 8;
%load/real v0x5610fda77560_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda774a0_0, 0, 1;
%jmp T_8.1;
T_8.0 ;
%load/real v0x5610fda77560_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda774a0_0, 0, 1;
T_8.1 ;
%jmp T_8;
.thread T_8;
.scope S_0x5610fda76bd0;
T_9 ;
%wait E_0x5610fda2f6d0;
%load/vec4 v0x5610fda774a0_0;
%flag_set/vec4 8;
%jmp/0xz T_9.0, 8;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda76fe0_0, 0, 1;
T_9.2 ;
%load/vec4 v0x5610fda774a0_0;
%flag_set/vec4 8;
%jmp/0xz T_9.3, 8;
%load/real v0x5610fda77180_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda76fe0_0, 0, 1;
%load/real v0x5610fda770c0_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda76fe0_0, 0, 1;
%jmp T_9.2;
T_9.3 ;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda76fe0_0, 0, 1;
T_9.0 ;
%jmp T_9;
.thread T_9;
.scope S_0x5610fda77680;
T_10 ;
%pushi/real 1342177280, 4068; load=5.00000
%store/real v0x5610fda77db0_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda77db0_0;
%mul/wr;
%store/real v0x5610fda77ce0_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda77db0_0;
%mul/wr;
%store/real v0x5610fda77c20_0;
%load/real v0x5610fda77db0_0;
%pushi/vec4 4, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda77fb0_0;
%load/real v0x5610fda77fb0_0;
%pushi/vec4 0, 0, 32;
%cvt/rv/s;
%mul/wr;
%pushi/vec4 90, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda78130_0;
%end;
.thread T_10, $init;
.scope S_0x5610fda77680;
T_11 ;
%vpi_call/w 4 18 "$display", "FREQ = %0d kHz", P_0x5610fda778d0 {0 0 0};
%vpi_call/w 4 19 "$display", "PHASE = %0d deg", P_0x5610fda77910 {0 0 0};
%vpi_call/w 4 20 "$display", "DUTY = %0d %%", P_0x5610fda77890 {0 0 0};
%vpi_call/w 4 22 "$display", "PERIOD = %0.1f ms", v0x5610fda77db0_0 {0 0 0};
%vpi_call/w 4 23 "$display", "CLK_ON = %0.1f ms", v0x5610fda77ce0_0 {0 0 0};
%vpi_call/w 4 24 "$display", "CLK_OFF = %0.1f ms", v0x5610fda77c20_0 {0 0 0};
%vpi_call/w 4 25 "$display", "QUARTER = %0.1f ms", v0x5610fda77fb0_0 {0 0 0};
%vpi_call/w 4 26 "$display", "START_DLY = %0.1f ms", v0x5610fda78130_0 {0 0 0};
%end;
.thread T_11;
.scope S_0x5610fda77680;
T_12 ;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda77b40_0, 0;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda78070_0, 0;
%end;
.thread T_12;
.scope S_0x5610fda77680;
T_13 ;
%wait E_0x5610fda47160;
%load/vec4 v0x5610fda77e70_0;
%flag_set/vec4 8;
%jmp/0xz T_13.0, 8;
%load/real v0x5610fda78130_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda78070_0, 0, 1;
%jmp T_13.1;
T_13.0 ;
%load/real v0x5610fda78130_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda78070_0, 0, 1;
T_13.1 ;
%jmp T_13;
.thread T_13;
.scope S_0x5610fda77680;
T_14 ;
%wait E_0x5610fda77ae0;
%load/vec4 v0x5610fda78070_0;
%flag_set/vec4 8;
%jmp/0xz T_14.0, 8;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda77b40_0, 0, 1;
T_14.2 ;
%load/vec4 v0x5610fda78070_0;
%flag_set/vec4 8;
%jmp/0xz T_14.3, 8;
%load/real v0x5610fda77ce0_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda77b40_0, 0, 1;
%load/real v0x5610fda77c20_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda77b40_0, 0, 1;
%jmp T_14.2;
T_14.3 ;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda77b40_0, 0, 1;
T_14.0 ;
%jmp T_14;
.thread T_14;
.scope S_0x5610fda78250;
T_15 ;
%pushi/real 1342177280, 4067; load=2.50000
%store/real v0x5610fda78950_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda78950_0;
%mul/wr;
%store/real v0x5610fda78880_0;
%pushi/real 1073741824, 4065; load=0.500000
%load/real v0x5610fda78950_0;
%mul/wr;
%store/real v0x5610fda787c0_0;
%load/real v0x5610fda78950_0;
%pushi/vec4 4, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda78b00_0;
%load/real v0x5610fda78b00_0;
%pushi/vec4 0, 0, 32;
%cvt/rv/s;
%mul/wr;
%pushi/vec4 90, 0, 32;
%cvt/rv/s;
%div/wr;
%store/real v0x5610fda78c80_0;
%end;
.thread T_15, $init;
.scope S_0x5610fda78250;
T_16 ;
%vpi_call/w 4 18 "$display", "FREQ = %0d kHz", P_0x5610fda78470 {0 0 0};
%vpi_call/w 4 19 "$display", "PHASE = %0d deg", P_0x5610fda784b0 {0 0 0};
%vpi_call/w 4 20 "$display", "DUTY = %0d %%", P_0x5610fda78430 {0 0 0};
%vpi_call/w 4 22 "$display", "PERIOD = %0.1f ms", v0x5610fda78950_0 {0 0 0};
%vpi_call/w 4 23 "$display", "CLK_ON = %0.1f ms", v0x5610fda78880_0 {0 0 0};
%vpi_call/w 4 24 "$display", "CLK_OFF = %0.1f ms", v0x5610fda787c0_0 {0 0 0};
%vpi_call/w 4 25 "$display", "QUARTER = %0.1f ms", v0x5610fda78b00_0 {0 0 0};
%vpi_call/w 4 26 "$display", "START_DLY = %0.1f ms", v0x5610fda78c80_0 {0 0 0};
%end;
.thread T_16;
.scope S_0x5610fda78250;
T_17 ;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda786e0_0, 0;
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda78bc0_0, 0;
%end;
.thread T_17;
.scope S_0x5610fda78250;
T_18 ;
%wait E_0x5610fda47160;
%load/vec4 v0x5610fda78a10_0;
%flag_set/vec4 8;
%jmp/0xz T_18.0, 8;
%load/real v0x5610fda78c80_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda78bc0_0, 0, 1;
%jmp T_18.1;
T_18.0 ;
%load/real v0x5610fda78c80_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda78bc0_0, 0, 1;
T_18.1 ;
%jmp T_18;
.thread T_18;
.scope S_0x5610fda78250;
T_19 ;
%wait E_0x5610fda78660;
%load/vec4 v0x5610fda78bc0_0;
%flag_set/vec4 8;
%jmp/0xz T_19.0, 8;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda786e0_0, 0, 1;
T_19.2 ;
%load/vec4 v0x5610fda78bc0_0;
%flag_set/vec4 8;
%jmp/0xz T_19.3, 8;
%load/real v0x5610fda78880_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda786e0_0, 0, 1;
%load/real v0x5610fda787c0_0;
%pushi/real 2097152000, 4075; load=1000.00
%mul/wr;
%cvt/vr 64;
%muli 1, 0, 64;
%ix/vec4 4;
%delayx 4;
%pushi/vec4 1, 0, 1;
%store/vec4 v0x5610fda786e0_0, 0, 1;
%jmp T_19.2;
T_19.3 ;
%pushi/vec4 0, 0, 1;
%store/vec4 v0x5610fda786e0_0, 0, 1;
T_19.0 ;
%jmp T_19;
.thread T_19;
.scope S_0x5610fda4b860;
T_20 ;
%vpi_call/w 3 15 "$dumpfile", "test.lx2" {0 0 0};
%vpi_call/w 3 16 "$dumpvars", 32'sb00000000000000000000000000000000, S_0x5610fda76bd0, S_0x5610fda77680, S_0x5610fda78250 {0 0 0};
%pushi/vec4 0, 0, 1;
%assign/vec4 v0x5610fda791d0_0, 0;
%pushi/vec4 0, 0, 32;
%store/vec4 v0x5610fda79270_0, 0, 32;
T_20.0 ;
%load/vec4 v0x5610fda79270_0;
%cmpi/s 10, 0, 32;
%jmp/0xz T_20.1, 5;
%vpi_func 3 20 "$random" 32 {0 0 0};
%pad/s 8;
%store/vec4 v0x5610fda790e0_0, 0, 8;
%load/vec4 v0x5610fda790e0_0;
%pad/u 64;
%muli 1000, 0, 64;
%ix/vec4 4;
%delayx 4;
%load/vec4 v0x5610fda791d0_0;
%inv;
%assign/vec4 v0x5610fda791d0_0, 0;
%vpi_call/w 3 22 "$display", "i=%0d delay=%0d", v0x5610fda79270_0, v0x5610fda790e0_0 {0 0 0};
%delay 50000, 0;
%load/vec4 v0x5610fda79270_0;
%addi 1, 0, 32;
%store/vec4 v0x5610fda79270_0, 0, 32;
%jmp T_20.0;
T_20.1 ;
%delay 50000, 0;
%vpi_call/w 3 26 "$finish" {0 0 0};
%end;
.thread T_20;
# The file index is used to find the file name in the following table.
:file_names 5;
"N/A";
"<interactive>";
"-";
"clock-tb.v";
"clock.v";

View File

@ -0,0 +1,27 @@
[*]
[*] GTKWave Analyzer v3.3.104 (w)1999-2020 BSI
[*] Tue Feb 7 17:50:40 2023
[*]
[dumpfile] "/home/user/UNI_DATA/COMS30046_2022_TB-2/projects/playground/verilog_iverilog/clock/test.lx2"
[dumpfile_mtime] "Tue Feb 7 17:49:38 2023"
[dumpfile_size] 4777
[savefile] "/home/user/UNI_DATA/COMS30046_2022_TB-2/projects/playground/verilog_iverilog/clock/gtkwave_savefile.gtkw"
[timestart] 0
[size] 1342 1059
[pos] -1 -1
*-17.808613 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
[treeopen] tb.
[sst_width] 221
[signals_width] 102
[sst_expanded] 1
[sst_vpaned_height] 313
@28
tb.u1.clk[0]
tb.u1.enable[0]
tb.u2.clk[0]
tb.u2.enable[0]
tb.u3.clk[0]
@29
tb.u3.enable[0]
[pattern_trace] 1
[pattern_trace] 0