dsp56000 Freescale Semiconductor, Inc, dsp56000 Datasheet - Page 405

• Manufacturer Part Number: dsp56000
• Description: 24-bit Digital Signal Processor Family Manual
• Manufacturer: Freescale Semiconductor, Inc

n
source operand S. Absolute short and I/O short addressing modes may also be used.
Restrictions: A JSSET instruction used within a DO loop cannot specify the loop
address (LA) as its target.
A JSSET located at LA, LA–1, or LA–2 of a DO loop, cannot specify the program control-
ler registers SR, SP, SSH, SSL, LA, or LC as its target.
JSSET SSH or JSSET SSL cannot follow an instruction that changes the SP.
A JSSET instruction cannot be repeated using the REP instruction.
Example:
Explanation of Example: In this example, program execution is transferred to the sub-
routine at absolute address P:$0100 in program memory if bit 23 of Y memory location
Y:$003F is a one. If the specified bit is not set, no jump is taken and the program counter
(PC) is incremented by 1.
Condition Codes:
For destination operand A or B:
For other source operands:
The condition codes are not affected.
MOTOROLA
JSSET
th
bit. All address register indirect addressing modes may be used to reference the
JSSET #$17,Y:<$3F,$100
S —Computed according to the definition. See Notes on page A-143.
L — Set if data limiting has occurred. See Notes on page A-143.
E — Not affected
U — Not affected
N — Not affected
Z — Not affected
V — Not affected
C — Not affected
15
LF
:
:
DM
14
13
T
Freescale Semiconductor, Inc.
**
12
For More Information On This Product,
MR
INSTRUCTION DESCRIPTIONS
S1
11
INSTRUCTION SET DETAILS
Jump to Subroutine if Bit Set
S0
10
Go to: www.freescale.com
I1
9
;go to sub. at P:$0100 if bit 23 in Y:$3F is set
I0
8
S
7
6
L
E
5
U
4
CCR
N
3
Z
2
V
1
JSSET
C
0
A - 139