MSM80C154S/83C154S/85C154HVS
346
87. PUSH data address (Push memory onto stack)
1
1
0
0
0
0
0
0
7
0
Instruction code
Data address
Operations
Number of bytes
Number of cycles
Flags
(PSW)
Description
Example PUSH P1
Instruction code
:
Byte 1
a
7
a
6
a
5
a
4
a
3
a
2
a
1
a
0
7
0
Byte 2
(SP)
←
(SP)+1
((SP))
←
(data address)
:
C
AC
F0
RS1 RS0 OV
F1
P
:
:
:
The stack pointer is incremented by 1, and the specified data
address contents are pushed in the stack addressed by the
stack pointer.
:
1 1 0 0 0 0 0 0
7
0
Byte 1
Port 1(90H)
1 1 0 1 0 1 0 1
7
0
2
2
1 0 0 1 0 0 0 0
7
0
Byte 2
Before execution
Port 1(90H)
1 1 0 1 0 1 0 1
7
0
After execution
:
Stack pointer
0 0 0 1 0 0 0 0
7
0
Stack pointer
0 0 0 1 0 0 0 1
7
0
11H (Stack)
0 0 0 0 0 0 0 0
7
0
11H (Stack)
1 1 0 1 0 1 0 1
7
0
Summary of Contents for MSM85C154HVS
Page 1: ...MSM80C154S MSM83C154S MSM85C154HVS USER S MANUAL...
Page 8: ...1 INTRODUCTION...
Page 9: ...MSM80C154S 83C154S 85C154HVS 2...
Page 15: ...MSM80C154S 83C154S 85C154HVS 8...
Page 16: ...2 SYSTEM CONFIGURATION...
Page 17: ...MSM80C154S 83C154S 85C154HVS 10...
Page 48: ...3 CONTROL...
Page 49: ...MSM80C154S 83C154S 85C154HVS 42...
Page 60: ...4 INTERNAL SPECIFICATIONS...
Page 61: ...MSM80C154S 83C154S 85C154HVS 54...
Page 197: ...MSM80C154S 83C154S 85C154HVS 190 5 INPUT OUTPUT PORTS...
Page 198: ...INPUT OUTPUT PORTS 191...
Page 220: ...INPUT OUTPUT PORTS 213...
Page 221: ...MSM80C154 83C154 85C154 214 6 ELECTRICAL CHARACTERISTICS...
Page 222: ...ELECTRICAL CHARACTERISTICS 215...
Page 236: ...7 DESCRIPTION OF INSTRUCTIONS...
Page 237: ...MSM80C154S 83C154S 85C154HVS 230...
