Program:

$.$data

num$1$: $.$half $0$xabcd # $16-$bit halfword for logic operations to be applied

nmask: $.$half $0$x$000$f # $4-$bit nibble mask

bmask: $.$half $0$x$00$ff # $8-$bit byte mask

$.$text

# Register Usage Plan:

# $t$0-$ Temporary register

# $t$1-$ Nibble A

# $t$2-$ Nibble B

# $t$3-$ Nibble C

# $t$4-$ Nibble D

# $t$5-$ Byte AB

# $t$6-$ Byte CD

# $t$7-$ Result of nibble sum

# $t$8-$ Result of byte subtraction

# $t$9-$ Final result

# Load data values into registers

lw $t$1,$ num$1$ # Load num$1$ into $t$1$

lw $t$2,$ nmask # Load nmask into $t$2$

lw $t$5,$ bmask # Load bmask into $t$5$

# Extract nibble D

and $t$4,$ $t$1,$ $t$2$ # Extract nibble D $($mask applied$)$

# Extract nibble C

srl $t$3,$ $t$1,8$ # Shift right to get nibble C in the lowest bits

and $t$3,$ $t$3,$ $t$2$ # Extract nibble C $($mask applied$)$

# Extract nibble B

srl $t$2,$ $t$1,12$ # Shift right to get nibble B in the lowest bits

and $t$2,$ $t$2,$ $t$2$ # Extract nibble B $($mask applied$)$

# Extract nibble A

srl $t$1,$ $t$1,16$ # Shift right to get nibble A in the lowest bits

and $t$1,$ $t$1,$ $t$2$ # Extract nibble A $($mask applied$)$

# Add the nibbles

add $t$7,$ $t$1,$ $t$2$ # Add A and B

add $t$7,$ $t$7,$ $t$3$ # Add A $+$ B $+$ C

add $t$7,$ $t$7,$ $t$4$ # Add A $+$ B $+$ C $+$ D

# Extract Byte CD

and $t$6,$ $t$1,$ $t$5$ # Extract CD $($mask applied to num$1)$

# Extract Byte AB

srl $t$5,$ $t$1,8$ # Shift right to get AB in the lowest bits

and $t$5,$ $t$5,$ $t$5$ # Extract AB $($mask applied$)$

# Align Byte CD

srl $t$6,$ $t$6,8$ # Shift right to align CD in the lower order byte position

# Subtract Byte CD from Byte AB

sub $t$8,$ $t$5,$ $t$6$

# Add nibble sum and byte subtraction result

add $t$9,$ $t$7,$ $t$8$

Error:

Error in D:$\backslash$riscv$2.$asm line $40$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $41$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $42$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $45$ column $9$: $"$$t$6"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $48$ column $9$: $"$$t$5"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $49$ column $9$: $"$$t$5"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $52$ column $9$: $"$$t$6"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $55$ column $9$: $"$$t$8"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $58$ column $9$: $"$$t$9"$: operand is of incorrect type

Assemble: operation completed with errors.

Assemble: assembling D:$\backslash$riscv$2.$asm

Error in D:$\backslash$riscv$2.$asm line $20$ column $5$: $"$lh$"$: Too few or incorrectly formatted operands. Expected: lh t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $21$ column $5$: $"$lh$"$: Too few or incorrectly formatted operands. Expected: lh t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $22$ column $5$: $"$lh$"$: Too few or incorrectly formatted operands. Expected: lh t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $25$ column $9$: $"$$t$4"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $28$ column $9$: $"$$t$3"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $29$ column $9$: $"$$t$3"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $32$ column $9$: $"$$t$2"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $33$ column $9$: $"$$t$2"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $36$ column $9$: $"$$t$1"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $37$ column $9$: $"$$t$1"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $40$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $41$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $42$ column $9$: $"$$t$7"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $45$ column $9$: $"$$t$6"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $48$ column $9$: $"$$t$5"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $49$ column $9$: $"$$t$5"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $52$ column $9$: $"$$t$6"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $55$ column $9$: $"$$t$8"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $58$ column $9$: $"$$t$9"$: operand is of incorrect type

Assemble: operation completed with errors.

Assemble: assembling D:$\backslash$riscv$2.$asm

Error in D:$\backslash$riscv$2.$asm line $20$ column $5$: $"$lw$"$: Too few or incorrectly formatted operands. Expected: lw t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $21$ column $5$: $"$lw$"$: Too few or incorrectly formatted operands. Expected: lw t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $22$ column $5$: $"$lw$"$: Too few or incorrectly formatted operands. Expected: lw t$1,-100($t$2)$

Error in D:$\backslash$riscv$2.$asm line $25$ column $9$: $"$$t$4"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $28$ column $9$: $"$$t$3"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $29$ column $9$: $"$$t$3"$: operand is of incorrect type

Error in D:$\backslash$riscv$2.$asm line $32$ column $9$: $"$$t$2"$: operand is of incorrect type

Error in D:$\backslash$ri

Solution: please provide the correct program