Chapter 3 (g) Addressing Modes
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Transcript of Chapter 3 (g) Addressing Modes
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8/12/2019 Chapter 3 (g) Addressing Modes
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7/16/2014
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ADD D CC 68000
A , :
.
.
.
.
ADD D A C68000 :
.
() :
.
.
(A) .
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1.0 DC ADD 68000
.
,
.
,
.
.
1.1 DAA DC
D
D (D0D7)
. 0, 3
D0 1020 4 D0 1020 4
D3 1034 88A D3 1034 8
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3
1.1 DAA DC
. 3
D3 6789 ABCD D3
.
D6 D6
. 0, 4
D0 0123 4567 D0
D4 0056 7800 D4
1.2 ADD DC
D
A (A0A7) .
. 3, 0
A0 0020 0000 A0 0004 88A
A3 0004 88A A3 0004 88A
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2.0 DC ADD
, .
,
.
,
.
:
A
A
A
2.1 AD DC
D
/
/
. 0, (0)
D0 1043 834 D0 1043 834
1000 55 02 1000 10 43
1002 3 00 1002 83 4
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2.1 ADD DC /
/
. (4)
A4 0040 0406 A4
0040 0406 12 34 0040 0406
0040 0408 56 78 0040 0408
. ()
A6 0040 0400 A60040 0400 22 7C
0040 0402 00 40
2.1 ADD DC
/
/
. 4, ()
D4 0056 7800 D4A6 0040 0400 A6
0040 0400 22 7C 0040 0400
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2.2 C DC D
+
* + 1
* + 2
* + 4
/
/
. (5)+, (0)
D0 0000 D0 0000 4567
A5 0000 1000 A5 0000 1002
0000 1000 45 67 0000 1000 45 67
2.2 C DC
/
/
. (4)+
A4 0040 0406 A40040 0406 12 34 0040 0406
. ()+
A6 0040 0400 A6
0040 0400 22 7C 0040 0400
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2.2 C DC /
/
. 4, ()+
D4 0056 7800 D4
A6 0040 0400 A6
0040 0400 22 7C 0040 0400
2.3 DC DC D
* 1
* 2* 4
/
/
. (0), ()
D0 0000 0143 D0 0000 0143
A7 0000 1002 A7 0000 1000
0000 1000 83 47 0000 1000 01 43
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2.3 DC DC /
/
. (3)
A3 0123 4567 A3
0123 4567 12 34 0123 4567
. 4, (4)
D4 0056 7800 D4
A4 0040 0406 A40040 0404 00 04 0040 0406
3.0 DA DAA ADD
. ,
.
,
.
.
, .
/
/
. #$5, 0
D0 0123 4567 D0 0123 456C
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C 1
C .
2
A68.
3
(.) ( .), ?
$400400 * $400400
. #$5,1
.1 #$400500,1
. 1,2
. 1,2
. (2)+,1
. 1,2
. 2,(1)
. #$4,1
. 1,(1)
#11
. 0