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8086 program to multiply two 16-bit numbers
In this program we will see how to multiply two 16-bit numbers.
Problem Statement
Write 8086 Assembly language program to multiply two 16-bit number stored in memory location 3000H – 3001H and 3002H – 3003H.
Discussion
We can do multiplication in 8086 with MUL instruction. For 16-bit data the result may exceed the range, the higher order 16-bit values are stored at DX register.
We are taking two numbers BCAD * FE2D = 1BADA
Input
|
Address |
Data |
|---|---|
| … |
… |
|
3000 |
AD |
|
3001 |
BC |
|
3002 |
2D |
|
3003 |
FE |
| … |
… |
Flow Diagram

Program

Output
|
Address |
Data |
|---|---|
| … |
… |
|
3004 |
69 |
|
3005 |
D0 |
|
3006 |
54 |
|
3007 |
BB |
| … |
… |
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