Instruction formats and opcodes, Trap – Freescale Semiconductor StarCore SC140 User Manual
Page 727
TRAP
SC140 DSP Core Reference Manual
A-413
Status and Conditions Changed by Instruction
Example 1
trap
Instruction Formats and Opcodes
Register Address
Bit Name
Description
SR[18]
EXP
Set
SR[0]
C
Cleared
SR[1]
T
Cleared
SR[5:4]
S[1:0]
Cleared
SR[31]
SLF
Cleared
SR[30:27]
LF[3:0]
Cleared
SR[23:21]
I[2:0]
Set interrupt priority level to 111.
Register/Memory Address
Before
After
ESP
$0000 8030
$0000 8038
VBA
$8000 0000
($8034)
$00E0 0000
($8030)
$0000 0014
PC
$0000 0012
$8000 0000
SR
$00E0 0000
$00E4 0000
Instruction
Words
Cycles
Type
Opcode
15
8
7
0
TRAP
1
5
4
1
0
0
1
1
1
1
0
0
1
1
1
1
1
1
0