Motorola M68CPU32BUG Instrukcja Użytkownika Pobierz pdf (Strona 5)

Part 3: Compiling a program using the Windows AS32 assembler.

In your Unix account create an appropriate directory structure for the experiments. For

example have a main ‘COEN311’ directory with subdirectories for each experiment

(EXP1, EXP2 etc.). In the subdirectory for the ﬁrst experiment create an ASCII text ﬁle

(use any of the available text editors such as ‘nedit’, ‘vi’, ‘emacs’. Alternatively a Windows

text editor such as Microsoft Notepad may be used, save the ﬁle in your U:\ in an appro-

priately named folder) containing the following:

* Experiment 1

* Name: Ted Obuchowicz, put your name here

* Date: August 31, 2009

ORG $3000

CLR.L D1

CLR.L D2

CLR.L D3

CLR.L D4

MOVE.B #$01,D1

MOVE.B #$02,D2

MOVE.B #$03,D3

START

ADD D1,D1

ADD D2,D2

ADD D2,D3

MULS D1,D3

DIVS D2,D1

SUB D0,D0

BEQ START

END

Save this program under the ﬁlename “exp1.asm”.

The AxIDE assembler is somewhat quirky. Here a few hints which will prevent assembly

errors:

• lines containing only comments should begin in column 1 as in:

* Experiment 1

* T. Obuchowicz

* July 27, 2006

* comments should become in column 1, this will cause an error

1 2 3 4 5 6 7 8 9 10 ... 34 35

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Motorola M68CPU32BUG Instrukcja Użytkownika Strona 5