ASCII TO BINARY
AIM:
To write an assembly language program for the code conversion of ASCII code to binary Code.
APPARATUS REQUIRED:
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ALGORITHM:
1. Start the program
2. Set HL pair as pointer for ASCII array.
3. Set D register as counter for number of data in the array.
4. Set BC pair as pointer for Binary array.
5. Increment the HL Pair and move a data of ASCII to accumulator.
6. Call the subroutine BIN to find the binary value.
7. The binary value is stored in the specified memory location.
8. Increment the BC register pair.
9. Decrement the D register.
10. Stop the program.
PROGRAM:
| Address | Label | Opcode | Mnemonics | Operand | Comments |
| 4200 | | 21,00,42 | LXI | H, 4200H | Load the array of ASCII data |
| 4203 | | 56 | MOV | D, M | Move the content of HL pair to D reg |
| 4204 | | 01,00,43 | LXI | B, 4300H | Load the address location in which binary results are stored |
| 4207 | LOOP | 23 | INX | H | Increment the HL pair. |
| 4208 | | 7E | MOV | A, M | Move the content of HL to A reg |
| 4209 | | CD, 13,42 | CALL | BIN | Call the subroutine |
| 420C | | 02 | STAX | B | Store the result in B reg |
| 420D | | 03 | INX | B | Increment the BC reg pair |
| 420E | | 15 | DCR | D | |
| 420F | | C2, 07,42 | JNZ | LOOP | Check for zero |
| 4212 | | 76 | HLT | | Stop the process |
| 4213 | BIN | D6, 30 | SUI | 30H | Subtract the content of A reg with 30H |
| 4215 | | FE, 0A | CPI | 0AH | Compare the content of A reg with 0AH |
| 4217 | | D8 | RC | | Carry is present return to main program. |
| 4218 | | D6, 07 | SUI | 07H | No carry subtract the content of A reg with 07H |
| 421A | | C9 | RET | | Return to main program. |
INPUT: OUTPUT:
4200-07 4300-01
4201-31 4301-0b
4202-42 4302-05
4203-35 4303-0f
4204-46 4304-0C
4205-43 4305-09
4206-39 4306-08
4207-38
RESULT:
Thus the assembly language program for ASCII to Binary Code conversion is executed and the results are verified.
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