Mail Archives: djgpp/1999/01/26/22:33:18
From: | Mike_and_Beth <mandbx AT wco DOT com>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | _asm undeclared
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Date: | Tue, 26 Jan 1999 19:30:50 -0800
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Organization: | Verio Northern California's Usenet News Service
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Lines: | 46
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Message-ID: | <36AE886A.98E@wco.com>
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NNTP-Posting-Host: | venus175.wco.com
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Mime-Version: | 1.0
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X-Mailer: | Mozilla 3.04Gold (Win95; I)
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Reply-To: | djgpp AT delorie DOT com
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I'm just starting to learn asm - What else am I missng for this to work
other than not being able to comprehend the autoConversion stuff in the
FAQ ?
I also saw something about 16BIT and 32 BIT modes, I was loaned a book
that uses specifically 16 BIT code examples. Should I get a different
book for 32 BIT and skip 16 ?
/* sample asm program */
#include <stdio.h>
void swapIntegers(int num_1, int num_2);
int main(void)
{
int n1 = 24;
int n2 = 48;
printf("num1 = %d and num2 = %d [ prior to swap ]\n",n1,n2 );
swapIntegers(n1,n2);
printf("num1 = %d and num2 = %d [ after the swap ]\n",n1,n2 );
puts("\n\t\tBye!\n");
return 0;
}
void swapIntegers(int num_1, int num_2)
{
_asm
{
mov AX, num_1
mov BX, num_2
mov num_2, AX
mov num_1, BX
}
}
This example is right out of the book.
Thanks,
Mike Purtell
mandbx AT wco DOT com
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