The counter is stored in 8E00H. The first set of numbers is stored from 8E01H onward, and the second set starts from 8F01H. The sum of numbers in corresponding positions is finally placed in the address of the first set of numbers.
Mnemonics:
LXI H, 8E00H
LXI D, 8F01H
MOV C, M
INX H
LOOP:
LDAX D
ADD M
MOV M, A
DCR C
INX H
INX D
JNZ LOOP
HLT
Observation table:
Mnemonics:
LXI H, 8E00H
LXI D, 8F01H
MOV C, M
INX H
LOOP:
LDAX D
ADD M
MOV M, A
DCR C
INX H
INX D
JNZ LOOP
HLT
Observation table:
|
Memory Address
|
Content Before
|
Content After
|
|
8E00
|
03H
|
03H
|
|
8E01
|
12
|
23
|
|
8E02
|
10
|
25
|
|
8E03
|
09
|
20
|
|
8F01
|
11
|
11
|
|
8F02
|
15
|
15
|
|
8F03
|
11
|
11
|
©Dixit Bhatta 2013
The program is for demimal or hexadecimal? As for decimal addition we need to give DAA instruction after ADD instruction.
ReplyDeleteWhen I executed the program it works hexadecimal multibyte addition.
Thank you.
Good point
Delete