CODEWITHSUNDEEP
assemblyx86emulation
Pooria Khodaveissi
Pooria Khodaveissi

Reputation: 395

What does exactly "scan_num" function in "emu8086.inc" do?

I'm working with emu8086, in a source code I've found this line at the top:

include 'emu8086.inc'

and this line in the end:

DEFINE_SCAN_NUM

I know that scan num is a part of emu8086.inc, and I opened up the inc file with an editor but still can't figure out what does exactly scan_function do?

Upvotes: 1

Views: 5779

Answers (2)

PhantomNaz9
PhantomNaz9

Reputation: 11

To use scan_num, we need to declare DEFINE_SCAN_NUM before END. And scan_num procedure helps us to take input from keyboard.

Upvotes: 1

ninjalj
ninjalj

Reputation: 43698

It reads a number between -32767 and 32767 and returns it into CX, using BIOS functions for keyboard input and display of the number.

(Actually, it will accept the - sign at any position, not only at the start).

Upvotes: 4

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