57 lines
1.4 KiB
Systemverilog
57 lines
1.4 KiB
Systemverilog
`timescale 1ns / 1ps
|
|
|
|
module Test_ImmExtend ();
|
|
logic [ 1:0] imm_src;
|
|
logic [31:0] instr;
|
|
logic [31:0] imm_ext;
|
|
|
|
ImmExtend DUT (
|
|
.imm_src(imm_src),
|
|
.instr (instr[31:7]),
|
|
.imm_ext(imm_ext)
|
|
);
|
|
|
|
logic [7:0] mem[16*4];
|
|
|
|
typedef struct packed {
|
|
bit [1:0] imm_src;
|
|
bit [31:0] assert_imm_ext_value;
|
|
} instr_info_t;
|
|
|
|
instr_info_t [5:0] instr_info;
|
|
typedef logic [31:0] instr_t;
|
|
function static instr_t get_instr(int i);
|
|
return {mem[i*4], mem[i*4+1], mem[i*4+2], mem[i*4+3]};
|
|
endfunction
|
|
|
|
initial begin
|
|
$dumpfile("test-imm-extend.vcd");
|
|
$dumpvars(1, DUT);
|
|
|
|
$readmemh("../fw/test/test-imm.mem", mem);
|
|
instr_info = '{
|
|
// instr_info_t'{2'h3, 32'hFFFF_FFE2},
|
|
instr_info_t'{2'h3, 32'h0000_07E6},
|
|
instr_info_t'{2'h2, 32'h0000_0008},
|
|
instr_info_t'{2'h1, 32'h0000_07FA},
|
|
instr_info_t'{2'h0, 32'hFFFF_FFFF},
|
|
instr_info_t'{2'h0, 32'h0000_0000},
|
|
instr_info_t'{2'h0, 32'h0000_0001}
|
|
};
|
|
|
|
#1;
|
|
assert (mem[0] !== 8'dx)
|
|
else $error("Test firmware not loaded");
|
|
|
|
for (int i = 0; i < 6; i++) begin
|
|
instr = get_instr(i);
|
|
imm_src = instr_info[i].imm_src;
|
|
#1;
|
|
assert (instr_info[i].assert_imm_ext_value == imm_ext)
|
|
else $error("Failed at instruction %d", i + 1);
|
|
#1;
|
|
end
|
|
$finish;
|
|
end
|
|
endmodule
|