Figure 210. stack operation – Intel 80C188XL User Manual

Page 45

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background image

OVERVIEW OF THE 80C186 FAMILY ARCHITECTURE

2-16

Figure 2-10. Stack Operation

A1013-0A

1060

1062

105E

105B

105A

1058

1056

1054

1052

1050

22

00

44

66

88

AA

34

45

89

CD

33

11

55

77

99

BB

12

67

AB

EF

Not presently

on stack

Bottom of stack

POP AX
POP BX

TOS

SS

SP

BB

AA

10

50

1060

1062

105E

105B

105A

1058

1056

1054

1052

1050

22

00

44

66

88

AA

34

45

89

CD

33

11

55

77

99

BB

12

67

AB

EF

12

34

1060

1062

105E

105B

105A

1058

1056

1054

1052

1050

22

00

44

66

88

AA

01

45

89

CD

33

11

55

77

99

BB

23

67

AB

EF

00

0A

10

50

TOS

SS

SP

00

06

10

50

TOS

SS

SP

00

08

10

50

PUSH AX

Existing

Stack

Stack operation for code sequence

PUSH AX

POP AX
POP BX

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