Instruction formats and opcodes instruction fields, Pop d3 – Freescale Semiconductor StarCore SC140 User Manual
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SC140 DSP Core Reference Manual
POP
Status and Conditions that Affect Instruction
Status and Conditions Changed By Instruction
Example
pop d3
Instruction Formats and Opcodes
Instruction Fields
Register Address
Bit Name
Description
SR[18]
EXP
Determines which stack pointer used, and which execution working
mode .
Register Address
Bit Name
Description
Ln
L
Pops of extensions restore the Ln bit in the destination register. Pops to
data registers clear the Ln bit.
Register/Memory Address
Before
After
SR
$00E00000
NSP
$00000010
$00000008
$0000000C
$2E03FF4E
L3:D3
$0:$002E03FF4E
Instruction
Words
Cycles
1
Note 1: An extra cycle is added if the shadow SP is not valid when the POP instruction is executed. See
Section 5.5.4, “Shadow Stack Pointer Registers,”
Type
Opcode
15
8
7
0
POP
De
1
1
4
1
0
0
1
E
E
E
0
0
0
1
E
0
0
E
1
15
8
7
0
POP
Do
1
1
4
1
0
0
1
e
e
e
1
0
0
1
e
0
0
e
1