1
00:00:00,820 --> 00:00:10,000
The Netwide assembler Nasm is an 80 x 86 assembler designed for portability and modularity.

2
00:00:10,030 --> 00:00:19,540
It supports a range of object file formats, including Linux and NetBSD FreeBSD a dot out elf coff Microsoft

3
00:00:19,540 --> 00:00:24,310
16 bit object file and win 32 and others.

4
00:00:24,340 --> 00:00:30,650
It will also output plain binary files, so its syntax is designed to be simple and easy to understand.

5
00:00:30,670 --> 00:00:34,240
So similar to Intel's but less complex.

6
00:00:34,240 --> 00:00:44,290
So it supports Pentium P6, MKs 3D now SE and SSI two Opcodes plus it has a macro capability, which

7
00:00:44,290 --> 00:00:44,860
is good.

8
00:00:45,010 --> 00:00:47,440
You will use that next lectures.

9
00:00:47,650 --> 00:00:53,920
And let's ask a question to ourselves why yet another assembler?

10
00:00:53,950 --> 00:01:04,300
The Netwide assembler grew out of an idea on pump lanc, ESM x86 or possibly altalink that ESM, which

11
00:01:04,300 --> 00:01:12,820
was essentially that there didn't seem to be a good 386 series assembler around and that maybe someone

12
00:01:12,820 --> 00:01:14,410
ought to write one.

13
00:01:14,410 --> 00:01:16,360
So I wrote the.

14
00:01:17,260 --> 00:01:20,300
I compared this assemblers 1 to 3.

15
00:01:20,320 --> 00:01:21,460
These five assemblers.

16
00:01:21,460 --> 00:01:25,390
Actually, the six is an assembly between each other.

17
00:01:25,420 --> 00:01:29,810
So let's start from the a86.

18
00:01:29,830 --> 00:01:33,810
So A86 is good, but not free.

19
00:01:33,820 --> 00:01:40,300
And in particular, you don't get any 32 bit capability until you pay and it is thus only two.

20
00:01:40,450 --> 00:01:43,060
We have also gas here.

21
00:01:43,150 --> 00:01:51,370
Gas is free and ports over Dos and Unix, but it's not very good since it's designed to be back end

22
00:01:51,370 --> 00:01:55,240
to GCC which always feeds it correct code.

23
00:01:55,240 --> 00:01:57,980
So it's error checking is minimal.

24
00:01:58,000 --> 00:02:05,140
Also, its syntax is horrible from the point of view of anyone trying to actually write anything in

25
00:02:05,140 --> 00:02:05,260
it.

26
00:02:05,260 --> 00:02:07,840
Plus you can't write 16 bit code in it.

27
00:02:08,110 --> 00:02:11,020
You can actually, but you can't write it properly.

28
00:02:11,020 --> 00:02:20,780
And we also have s 86 as 86 is a Linux and Linux specific and my version at least doesn't seem to have

29
00:02:20,780 --> 00:02:23,270
much or any documentation.

30
00:02:23,870 --> 00:02:24,340
Um.

31
00:02:24,390 --> 00:02:28,550
Masm is not very good and it's expensive.

32
00:02:28,550 --> 00:02:34,400
Like all the Microsoft uh, things here and it runs only under Dos here.

33
00:02:35,000 --> 00:02:43,610
Um, and we also have TSM, which is better, better than MSM, but still strives for MSM compatibility,

34
00:02:43,640 --> 00:02:49,520
which means millions of directives and tons of red tape.

35
00:02:49,520 --> 00:02:57,050
And its syntax is essentially a msmes with the contradictions and quirks that entails, although it

36
00:02:57,050 --> 00:03:00,830
sorts out some of those by means of idle mode.

37
00:03:00,830 --> 00:03:02,990
And it's expensive too.

38
00:03:02,990 --> 00:03:04,580
And it's only.

39
00:03:05,230 --> 00:03:06,100
Those only here.