Motorola DSP56000 Manual page 391

JSCLR
Instruction Format:
JSCLR #n,X:ea,xxxx
JSCLR #n,Y:ea,xxxx
Opcode:
23
0 0 0 0
Instruction Fields:
#n=bit number=bbbbb,
ea=6-bit Effective Address=MMMRRR,
xxxx=16-bit Absolute Address in extension word
Effective
Addressing Mode
(Rn)-Nn
(Rn)+Nn
(Rn)-
(Rn)+
(Rn)
(Rn+Nn)
-(Rn)
where "rrr" refers to an address register R0-R7
Timing: 6+jx oscillator clock cycles
Memory: 2 program words
MOTOROLA
INSTRUCTION DESCRIPTIONS
Jump to Subroutine if Bit Clear
16 15
1 0 1 1 0 1 M
ABSOLUTE ADDRESS EXTENSION
M M M R R R
0 0 0 r r r
0 0 1 r r r
0 1 0 r r r
0 1 1 r r r
1 0 0 r r r
1 0 1 r r r
1 1 1 r r r
INSTRUCTION SET DETAILS
8 7
M M R R R 1 S
Memory SpaceS
X Memory 0
Y Memory 1
JSCLR
0
0 b b b b b
Bit Number bbbbb
00000
•
•
•
10111
A - 125