Write an assembly program that :

Load AL by an arbitrary number, if there is parity even, transfer 80H to the Port 0, and if there is parity odd, transfer 01H to the Port 0.

Convert the Assembly Program to Machine Code.

in the machine code, you forgot

MOV P0, #01H
after the 74 03 ; JE EVEN

You are correct, thank you for pointing that out. Here is the corrected machine code:

B0 A5 ; MOV AL, 10100101b
8A C3 ; MOV BL, AL
24 01 ; AND BL, 00000001b
80 F3 00 ; CMP BL, 0
74 03 ; JE EVEN
D3 1E 01 ; MOV P0, #01H
EB 02 ; JMP DONE
D3 1E 80 ; EVEN: MOV P0, #80H
F4 ; DONE: HLT

Sure! Here's the assembly program:

```
MOV AL, 27H ; Load AL by an arbitrary number (27H)
MOV BL, AL ; Move the value of AL to BL for parity check
AND BL, 1 ; Perform bitwise AND with 1 to extract the least significant bit

CMP BL, 0 ; Compare the least significant bit with 0
JE EVEN ; Jump to EVEN if BL = 0 (even parity)
JMP ODD ; Jump to ODD if BL = 1 (odd parity)

EVEN:
MOV AL, 80H ; If parity is even, load AL with 80H (hexadecimal)
JMP OUT ; Jump to OUT to transfer AL value to Port 0

ODD:
MOV AL, 01H ; If parity is odd, load AL with 01H (hexadecimal)

OUT:
OUT 0, AL ; Transfer the value of AL to Port 0

HLT ; Halt the program

```

And here's the equivalent machine code:

```
B0 27 ; MOV AL, 27H
88 D8 ; MOV BL, AL
24 01 ; AND BL, 1
3C 00 ; CMP BL, 0
74 06 ; JE EVEN
EB 02 ; JMP ODD
B0 80 ; EVEN: MOV AL, 80H
EB 01 ; JMP OUT
B0 01 ; ODD: MOV AL, 01H
E6 00 ; OUT 0, AL
F4 ; HLT
```

Please note that the actual machine code may vary depending on the specific assembler or assembler directives being used.

To write an assembly program to accomplish the given task, you can follow these steps:

1. Start by loading the arbitrary number into the AL register.
2. Perform the parity check on the data in the AL register.
3. If the parity is even, transfer the value 80H to Port 0.
4. If the parity is odd, transfer the value 01H to Port 0.
5. End the program.

Here is an example assembly program that implements the given logic:

```assembly
DATA SEGMENT
NUMBER DB 123 ; Arbitrary number to load into AL
DATA ENDS

CODE SEGMENT
ASSUME DS:DATA, CS:CODE

MAIN:
MOV AX, DATA ; Initialize data segment
MOV DS, AX

MOV AL, NUMBER ; Load arbitrary number into AL
XOR AH, AH ; Clear AH register

MOV BL, AL ; Make a copy of the number

XOR BH, BH ; Clear BH register
MOV CX, 8 ; Set counter for parity check loop

PARITY_CHECK:
SHR BL, 1 ; Shift Copy of number to the right

JC ODD ; Jump to ODD if Carry Flag is set (parity is odd)

LOOP PARITY_CHECK ; Continue loop until CX(Counter) becomes zero

EVEN:
MOV AL, 80H ; Assign 80H to AL register for transferring to Port 0
JMP TRANSFER

ODD:
MOV AL, 01H ; Assign 01H to AL register for transferring to Port 0

TRANSFER:
; Transfer AL contents to Port 0
; You need to write the specific instructions based on your system architecture
; For example, you may use "OUT" or "MOV" instructions.

END_PROGRAM:
MOV AH, 4CH ; Set exit function code
INT 21H ; Terminate the program

CODE ENDS
END MAIN
```

To convert this assembly program into machine code, you need to use an assembler specific to your assembly language. Assemblers like NASM or MASM can be used to assemble the assembly program into machine code.

Here is an example of the machine code generated by the assembler for the above assembly program:

```machine code
B8 0020 8E D8 8A E0 32 F3 72 F4 B0 80 EB 0A B0 01 C0 EF 02 B4 4C CD 21
```

Please note that the generated machine code can vary depending on your assembler and architecture.

Assembly Program:

MOV AL, 10100101b ; Load AL by an arbitrary number
MOV BL, AL ; Copy AL to BL
AND BL, 00000001b ; Mask the least significant bit
CMP BL, 0 ; Check if the least significant bit is 0
JE EVEN ; If 0, jump to EVEN
MOV P0, #01H ; If not 0, transfer 01H to Port 0 and exit
JMP DONE

EVEN:
MOV P0, #80H ; Transfer 80H to Port 0 and exit

DONE:
HLT ; End the program

Machine Code:
B0 A5 ; MOV AL, 10100101b
8A C3 ; MOV BL, AL
24 01 ; AND BL, 00000001b
80 F3 00 ; CMP BL, 0
74 03 ; JE EVEN
74 01 ; JMP DONE
D3 1E 00 ; EVEN: MOV P0, #80H
F4 ; DONE: HLT