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lab-08: gate level model for 32x32-bit register file

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Gate level implementation for the following components:
- DECODER_5x32
- MUX32_32x1
- REGISTER_FILE_32x32

Additional tests added in register file testbench.
This commit is contained in:
Yuri Tatishchev 2024-10-19 18:28:15 -07:00
parent 3091103f81
commit eca53c1104
Signed by: CaZzzer
GPG Key ID: E0EBF441EA424369
1 changed files with 24 additions and 5 deletions
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29
TESTBENCH/register_file_tb.v
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@ -68,24 +68,43 @@ no_of_pass = 0;
// Write cycle
for(i=0;i<32; i = i + 1)
begin
#10 DATA_REG=i; READ=1'b0; WRITE=1'b1; ADDR_W = i;
#10 DATA_REG = i * 10; READ=1'b0; WRITE=1'b1; ADDR_W = i;
end
#5 READ=1'b0; WRITE=1'b0;
// test of write data
for(i=0;i<32; i = i + 1)
begin
#5 READ=1'b1; WRITE=1'b0; ADDR_R1 = i; ADDR_R2 = i;
#5 READ=1'b1; WRITE=1'b0; ADDR_R1 = i; ADDR_R2 = i % 7;
#5 no_of_test = no_of_test + 1;
if (DATA_R1 !== i)
$write("[TEST @ %0dns] Read %1b, Write %1b, expecting %8h, got %8h [FAILED]\n", $time, READ, WRITE, i, DATA_R1);
else
if (DATA_R1 !== i * 10)
$write("[TEST @ %0dns] Read %1b, Write %1b, expecting %8h, got %8h [FAILED]\n", $time, READ, WRITE, i * 10, DATA_R1);
else if (DATA_R2 !== (i % 7) * 10)
$write("[TEST @ %0dns] Read %1b, Write %1b, expecting %8h, got %8h [FAILED]\n", $time, READ, WRITE, (i % 7) * 10, DATA_R2);
else
no_of_pass = no_of_pass + 1;
result[ridx] = DATA_R1; ridx=ridx+1;
result[ridx] = DATA_R1; ridx=ridx+1;
end
// Testing read and write at the same time
for(i=2;i<16; i = i + 1)
begin
#5 DATA_REG = 20; READ=1'b1; WRITE=1'b1; ADDR_W = i + 1; ADDR_R1 = i; ADDR_R2 = i * 2;
#5 no_of_test = no_of_test + 1;
if (DATA_R1 !== 20)
$write("[TEST @ %0dns] Read %1b, Write %1b, expecting %8h, got %8h [FAILED]\n", $time, READ, WRITE, 20, DATA_R1);
else if (DATA_R2 !== i * 20)
$write("[TEST @ %0dns] Read %1b, Write %1b, expecting %8h, got %8h [FAILED]\n", $time, READ, WRITE, i * 20, DATA_R2);
else
no_of_pass = no_of_pass + 1;
result[ridx] = DATA_R1; ridx=ridx+1;
result[ridx] = DATA_R1; ridx=ridx+1;
end
// TODO: Read and write from the same address at the same time?
#5 READ=1'b0; WRITE=1'b0; // No op