simulation5 - STORE

Simulation Results

SW

We conducted a simulation using the instructions provided in the file sw.mif and the testbench tb_top to evaluate the pipeline's functionality.

Also, a 32-bit data memory was introduced. The data memory is initialized with the contents of the file data.mif.

The obtained result matches the expected outcome, which can be verified below.

Instructions Tested

The simulation included testing the following instructions:

addi x7,x0,-1
sw x7,0(x0)
lw x9,0(x0)

Registers/Memory State after each instruction

The following information is extracted from the simulation log and can be interpreted as demonstrated in the example below:

tt: Register [x] written with value: [hhhhhhhh] | [dddddddd]
tt: Memory [x] read with value: [hhhhhhhh] | [dddddddd]
tt: Memory [x] written with value: [hhhhhhhh] | [dddddddd]

In the above example, tt represents the simulation time, x represents the register/memory address number, hhhhhhhh represents the hexadecimal value stored in the register/memory slot, and dddddddd represents the same value in decimal.

---

45: Memory [  0] written with value: [ffffffff] | [4294967295]
45: Register [ 7] written with value: [ffffffff] | [4294967295]
55: Memory [  0] read with value: [xxxxxxxx] | [         x]
55: Memory [  0] read with value: [ffffaa80] | [4294945408]
60: Memory [  0] read with value: [ffffffff] | [4294967295]
65: Register [ 9] written with value: [ffffffff] | [4294967295]

SB, SH

• sb-sh.mif

Instructions Tested

addi x7,x0,0
sb x7,2(x0)
lw x9,0(x0)
sh x7,2(x0)
lw x8,0(x0)

Registers/Memory State after each instruction

45: Memory [  2] written with value: [00000000] | [         0]
45: Register [ 7] written with value: [00000000] | [         0]
55: Memory [  0] read with value: [xxxxxxxx] | [         x]
55: Memory [  0] read with value: [0000ffff] | [     65535]
60: Memory [  0] read with value: [ff00aa80] | [4278233728]
65: Memory [  2] written with value: [00000000] | [         0]
65: Register [ 9] written with value: [ff00aa80] | [4278233728]
75: Memory [  0] read with value: [ff00aa80] | [4278233728]
75: Memory [  0] read with value: [0000ffff] | [     65535]
80: Memory [  0] read with value: [0000aa80] | [     43648]
85: Register [ 8] written with value: [0000aa80] | [     43648]