Motorola DSP56000 Manual page 404

JSSET
Operation:
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx PC
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx PC
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx PC
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx PC
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx
else PC+1 PC
If S[n]=1,
then SP+1 SP; PC SSH; SR SSL; xxxx PC
else PC+1 PC
Description: Jump to the subroutine at the 16-bit absolute address in program memory
specified in the instruction's 24-bit extension word if the n
set. The bit to be tested is selected by an immediate bit number from 0–23. If the n
of the source operand S is set, the address of the instruction immediately following the
JSSET instruction (PC) and the system status register (SR) are pushed onto the system
stack. Program execution then continues at the specified absolute address in the instruc-
tion's 24-bit extension word. If the specified memory bit is not set, the program counter
(PC) is incremented, and the extension word is ignored. However, the address register
specified in the effective address field is always updated independently of the state of the
A - 138
INSTRUCTION DESCRIPTIONS
Jump to Subroutine if Bit Set
SSL; xxxx PC
PC
INSTRUCTION SET DETAILS
JSSET
Assembler Syntax
JSSET #n,X:ea,xxxx
JSSET #n,X:aa,xxxx
JSSET #n,X:pp,xxxx
JSSET #n,Y:ea,xxxx
JSSET #n,Y:aa,xxxx
JSSET #n,Y:pp,xxxx
JSSET #n,S,xxxx
th
bit of the source operand S is
th
bit
MOTOROLA