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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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