5 5 2 3 B # # v1: v2: This program gives you some practice w shift, and rotate operators main: .global .data .word .word .text .set .ent lw $s1, v1 12 main 0xFEEDABEE noreorder main ## $s1 v1 =

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This code illustrates a MIPS assembly program focusing on bitwise operations, shifts, and rotations. Below is the transcription and explanation:

```assembly
# This program gives you some practice working with bitwise,
# shift, and rotate operators

    .global main

    .data
v1: .word 12
v2: .word 0xFEEDABEE

    .text
    .set noreorder
    .ent main

main:
    lw $s1, v1           ## $s1 = v1
    lw $s2, v2           ## $s2 = v2

    ## $t0 = v2 with highest 12 bits cleared (set to 0), other bits staying the same
    ## $t1 = v2 with lower 1 byte set to 1, other bits staying the same
    ## $t2 = v1 multiplied by 4 *without* using a multiply instruction
    ## $t3 = v2 divided by 7 *without* using a multiply instruction
    ## $t4 = remainder of v1 divided by 5
    ## $t5 = v2 with the lowest 6 bits flipped (inverted) and the upper 26 bits staying the same
    ## $t6 = 0x1401FED0 without using any pseudo-instructions (i.e., shouldn't use "li $t6, 0xABCD1357")

# This code simply loops infinitely
spin: j spin
    nop

    .end main
```

### Explanation of Operations:

- **Loading Values**: 
  - `$s1` is loaded with the value from `v1` (12).
  - `$s2` is loaded with the value from `v2` (0xFEEDABEE).

- **Bitwise Operations**:
  - `$t0` operation clears the highest 12 bits of `v2`.
  - `$t1` sets the lower byte of `v2` to 1 while keeping the rest unchanged.
  - `$t5` flips the lowest 6 bits of `v2` and retains the upper 26 bits.

- **Arithmetic Operations**:
  - `$t2` computes `v1` * 4 without direct multiplication.
  - `$t3` divides `v2` by 7 without using a direct division instruction.
Transcribed Image Text:This code illustrates a MIPS assembly program focusing on bitwise operations, shifts, and rotations. Below is the transcription and explanation: ```assembly # This program gives you some practice working with bitwise, # shift, and rotate operators .global main .data v1: .word 12 v2: .word 0xFEEDABEE .text .set noreorder .ent main main: lw $s1, v1 ## $s1 = v1 lw $s2, v2 ## $s2 = v2 ## $t0 = v2 with highest 12 bits cleared (set to 0), other bits staying the same ## $t1 = v2 with lower 1 byte set to 1, other bits staying the same ## $t2 = v1 multiplied by 4 *without* using a multiply instruction ## $t3 = v2 divided by 7 *without* using a multiply instruction ## $t4 = remainder of v1 divided by 5 ## $t5 = v2 with the lowest 6 bits flipped (inverted) and the upper 26 bits staying the same ## $t6 = 0x1401FED0 without using any pseudo-instructions (i.e., shouldn't use "li $t6, 0xABCD1357") # This code simply loops infinitely spin: j spin nop .end main ``` ### Explanation of Operations: - **Loading Values**: - `$s1` is loaded with the value from `v1` (12). - `$s2` is loaded with the value from `v2` (0xFEEDABEE). - **Bitwise Operations**: - `$t0` operation clears the highest 12 bits of `v2`. - `$t1` sets the lower byte of `v2` to 1 while keeping the rest unchanged. - `$t5` flips the lowest 6 bits of `v2` and retains the upper 26 bits. - **Arithmetic Operations**: - `$t2` computes `v1` * 4 without direct multiplication. - `$t3` divides `v2` by 7 without using a direct division instruction.
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