fix some verilator warnings

This commit is contained in:
Raphael Jacquot 2019-02-04 20:36:47 +01:00
parent 355539aaaf
commit 713689b0f9
6 changed files with 609 additions and 10 deletions

7
.gitignore vendored
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@ -1,3 +1,8 @@
saturn_core.json
rom_tb
saturn_core.json
obj_dir/Vsaturn_core.cpp
obj_dir/Vsaturn_core.h
obj_dir/Vsaturn_core.mk
obj_dir/Vsaturn_core__Syms.cpp
obj_dir/Vsaturn_core__Syms.h
obj_dir/Vsaturn_core_classes.mk

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@ -2,4 +2,4 @@
#yosys -p "synth_ecp5 -top mask_gen -json mask_gen.json" mask_gen.v
#nextpnr-ecp5 --gui --um-85k --speed 6 --freq 5 --json mask_gen.json --save mask_gen.ecp5
yosys -p "synth_ecp5 -top saturn_core -json saturn_core.json" saturn_core.v
nextpnr-ecp5 --gui --um-85k --speed 6 --freq 5 --lpf ulx3s_v20.lpf --json saturn_core.json --save saturn_core.ecp5
nextpnr-ecp5 --gui --um-85k --speed 6 --freq 5 --lpf ulx3s_v20.lpf --textcfg empty_lfe5u-85f.config --json saturn_core.json --save saturn_core.ecp5

534
empty_lfe5u-85f.config Normal file
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@ -0,0 +1,534 @@
.device LFE5U-85F
.tile CIB_R10C3:PVT_COUNT2
unknown: F2B0
unknown: F3B0
unknown: F5B0
unknown: F11B0
unknown: F13B0
.tile CIB_R5C125:CIB_PLL1
enum: CIB.JA3MUX 0
enum: CIB.JB3MUX 0
.tile CIB_R5C1:CIB_PLL1
enum: CIB.JA3MUX 0
enum: CIB.JB3MUX 0
.tile CIB_R94C123:CIB_PLL3
enum: CIB.JA3MUX 0
enum: CIB.JB3MUX 0
.tile CIB_R94C3:CIB_PLL3
enum: CIB.JA3MUX 0
enum: CIB.JB3MUX 0
.tile CIB_R94C46:VCIB_DCU0
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C47:VCIB_DCUA
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C48:VCIB_DCUB
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C49:VCIB_DCUC
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C50:VCIB_DCUD
enum: CIB.JA1MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C51:VCIB_DCUF
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C52:VCIB_DCU3
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C53:VCIB_DCU2
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C54:VCIB_DCUG
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C55:VCIB_DCUH
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C56:VCIB_DCUI
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C57:VCIB_DCU1
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
.tile CIB_R94C6:CIB_EFB0
enum: CIB.JB3MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C71:VCIB_DCU0
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C72:VCIB_DCUA
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C73:VCIB_DCUB
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C74:VCIB_DCUC
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C75:VCIB_DCUD
enum: CIB.JA1MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C76:VCIB_DCUF
enum: CIB.JA1MUX 0
enum: CIB.JA3MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC2MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C77:VCIB_DCU3
enum: CIB.JA5MUX 0
enum: CIB.JA7MUX 0
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JC0MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC6MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C78:VCIB_DCU2
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C79:VCIB_DCUG
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C7:CIB_EFB1
enum: CIB.JA3MUX 0
enum: CIB.JA4MUX 0
enum: CIB.JA5MUX 0
enum: CIB.JA6MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB4MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB6MUX 0
enum: CIB.JC3MUX 0
enum: CIB.JC4MUX 0
enum: CIB.JC5MUX 0
enum: CIB.JD3MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD5MUX 0
.tile CIB_R94C80:VCIB_DCUH
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C81:VCIB_DCUI
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JB7MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
enum: CIB.JD4MUX 0
enum: CIB.JD6MUX 0
.tile CIB_R94C82:VCIB_DCU1
enum: CIB.JB1MUX 0
enum: CIB.JB3MUX 0
enum: CIB.JB5MUX 0
enum: CIB.JD0MUX 0
enum: CIB.JD2MUX 0
.tile MIB_R22C67:CMUX_UL_0
arc: G_DCS0CLK0 G_VPFN0000
.tile MIB_R22C68:CMUX_UR_0
arc: G_DCS0CLK1 G_VPFN0000
.tile MIB_R70C67:CMUX_LL_0
arc: G_DCS1CLK0 G_VPFN0000
.tile MIB_R70C68:CMUX_LR_0
arc: G_DCS1CLK1 G_VPFN0000
.tile MIB_R95C101:PICB0
unknown: F0B1
.tile MIB_R95C102:PICB1
unknown: F0B1
.tile MIB_R95C103:PICB0
unknown: F0B1
.tile MIB_R95C104:PICB1
unknown: F0B1
.tile MIB_R95C105:PICB0
unknown: F0B1
.tile MIB_R95C106:PICB1
unknown: F0B1
.tile MIB_R95C107:PICB0
unknown: F0B1
.tile MIB_R95C108:PICB1
unknown: F0B1
.tile MIB_R95C110:PICB0
unknown: F0B1
.tile MIB_R95C111:PICB1
unknown: F0B1
.tile MIB_R95C112:PICB0
unknown: F0B1
.tile MIB_R95C113:PICB1
unknown: F0B1
.tile MIB_R95C114:PICB0
unknown: F0B1
.tile MIB_R95C115:PICB1
unknown: F0B1
.tile MIB_R95C116:PICB0
unknown: F0B1
.tile MIB_R95C117:PICB1
unknown: F0B1
.tile MIB_R95C119:PICB0
unknown: F0B1
.tile MIB_R95C120:PICB1
unknown: F0B1
.tile MIB_R95C121:PICB0
unknown: F0B1
.tile MIB_R95C122:PICB1
unknown: F0B1
.tile MIB_R95C4:EFB0_PICB0
unknown: F54B1
unknown: F56B1
unknown: F82B1
unknown: F94B1
.tile MIB_R95C96:PICB0
unknown: F0B1
.tile MIB_R95C97:PICB1
unknown: F0B1
.tile MIB_R95C98:PICB0
unknown: F0B1
.tile MIB_R95C99:PICB1
unknown: F0B1

7
run
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@ -1,4 +1,11 @@
#!/bin/bash
verilator -Wall -cc saturn_core.v
VERILATOR_STATUS=$?
if [ "VERILATOR_STATUS" != "0" ]
then
echo "verilator fail"
exit
fi
#iverilog -v -Wall -DSIM -o mask_gen_tb mask_gen.v
iverilog -v -Wall -DSIM -o rom_tb saturn_core.v
IVERILOG_STATUS=$?

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@ -14309,22 +14309,68 @@
"saturn_core": {
"attributes": {
"top": 1,
"src": "saturn_core.v:40"
"src": "saturn_core.v:49"
},
"ports": {
"clk_25mhz": {
"direction": "input",
"bits": [ 2 ]
},
"btn": {
"direction": "input",
"bits": [ 3, 4, 5, 6, 7, 8, 9 ]
},
"wifi_gpio0": {
"direction": "output",
"bits": [ "1" ]
}
},
"cells": {
},
"netnames": {
"btn": {
"hide_name": 0,
"bits": [ 3, 4, 5, 6, 7, 8, 9 ],
"attributes": {
"src": "saturn_core.v:51"
}
},
"calc_rom.clk": {
"hide_name": 0,
"bits": [ 2 ],
"attributes": {
"src": "saturn_core.v:157|saturn_core.v:12",
"unused_bits": "0"
}
},
"clk": {
"hide_name": 0,
"bits": [ 2 ],
"attributes": {
"src": "saturn_core.v:54",
"unused_bits": "0"
}
},
"clk_25mhz": {
"hide_name": 0,
"bits": [ 2 ],
"attributes": {
"src": "saturn_core.v:48"
"src": "saturn_core.v:50"
}
},
"reset": {
"hide_name": 0,
"bits": [ 4 ],
"attributes": {
"src": "saturn_core.v:55",
"unused_bits": "0"
}
},
"wifi_gpio0": {
"hide_name": 0,
"bits": [ "1" ],
"attributes": {
"src": "saturn_core.v:52"
}
}
}

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@ -1,3 +1,5 @@
`default_nettype none //
/**************************************************************************************************
*
*
@ -20,7 +22,6 @@ reg [3:0] rom [0:(2**20)-1];
initial
begin
if ( ROM_FILENAME != "" )
$readmemh( ROM_FILENAME, rom);
end
@ -116,7 +117,7 @@ reg [3:0] runstate;
reg [31:0] decstate;
// memory access
reg rom_clock;
//reg rom_clock;
reg [19:0] rom_address;
reg rom_enable;
wire[3:0] rom_nibble;
@ -175,6 +176,7 @@ begin
rstk_ptr <= 7;
PC <= 0;
saved_PC <= 0;
P <= 0;
ST <= 0;
HST <= 0;
@ -251,7 +253,7 @@ begin
if (runstate == READ_ROM_CLK)
begin
//$display("READ_ROM_CLK");
rom_clock <= 1'b1;
// rom_clock <= 1'b1;
runstate <= READ_ROM_STR;
end
@ -263,7 +265,7 @@ begin
//$display("PC: %h | read => %h", PC, rom_nibble);
PC <= PC + 1;
rom_enable <= 1'b0;
rom_clock <= 1'b0;
// rom_clock <= 1'b0;
runstate <= READ_ROM_VAL;
end
@ -771,7 +773,7 @@ endtask
READ_ROM_VAL:
begin
//$display("decstate %h | nibble %h", decstate, nibble);
jump_base[load_ctr*4+:4] = nibble;
jump_base[load_ctr*4+:4] <= nibble;
`ifdef SIM
$write("%1h", nibble);
`endif
@ -867,6 +869,11 @@ task decode_a_fs;
endtask
*/
end
/ Verilator lint_off UNUSED
wire [N-1:0] unused;
assign unused = { };
/ Verilator lint_on UNUSED
endmodule
`ifdef SIM