INSTRUCTION DESCRIPTIONS
A - 56
INSTRUCTION SET DETAILS
MOTOROLA
Operation:
Assembler Syntax:
D[n]
➞
C;
BSET
#n,X:ea
1
➞
D[n]
D[n]
➞
C;
BSET
#n,X:aa
1
➞
D[n]
D[n]
➞
C;
BSET
#n,X:pp
1
➞
D[n]
D[n]
➞
C;
BSET
#n,Y:ea
1
➞
D[n]
D[n]
➞
C;
BSET
#n,Y:aa
1
➞
D[n]
D[n]
➞
C;
BSET
#n,Y:pp
1
➞
D[n]
D[n]
➞
C;
BSET
#n,D
1
➞
D[n]
Description: Test the n
th
bit of the destination operand D, set it, and store the result in
the destination location. The state of the n
th
bit is stored in the carry bit C of the condition
code register. The bit to be tested is selected by an immediate bit number from 0–23.
This instruction performs a read-modify-write operation on the destination location using
two destination accesses before releasing the bus. This instruction provides a test-and-
set capability which is useful for synchronizing multiple processors using a shared mem-
ory. This instruction can use all memory alterable addressing modes.
Example:
:
BSET
#$0,X:<<$FFE5
;test and clear bit 14 in I/O Port B Data Reg.
:
BSET
Bit Test and Set
Before Execution
After Execution
X:$FFE5
X:$FFE5
$000000
SR
SR
$0300
$0300
$000001
Summary of Contents for DSP56K
Page 12: ...xii LIST of TABLES MOTOROLA List of Tables Continued Table Page Number Title Number ...
Page 13: ...MOTOROLA DSP56K FAMILY INTRODUCTION 1 1 SECTION 1 DSP56K FAMILY INTRODUCTION ...
Page 31: ...MOTOROLA DATA ARITHMETIC LOGIC UNIT 3 1 SECTION 3 DATA ARITHMETIC LOGIC UNIT ...
Page 50: ...DATA ALU SUMMARY 3 20 DATA ARITHMETIC LOGIC UNIT MOTOROLA ...
Page 51: ...MOTOROLA ADDRESS GENERATION UNIT 4 1 SECTION 4 ADDRESS GENERATION UNIT ...
Page 77: ...MOTOROLA PROGRAM CONTROL UNIT 5 1 SECTION 5 PROGRAM CONTROL UNIT ...
Page 124: ...INSTRUCTION GROUPS 6 30 INSTRUCTION SET INTRODUCTION MOTOROLA ...
Page 125: ...MOTOROLA PROCESSING STATES 7 1 SECTION 7 PROCESSING STATES STOP WAIT EXCEPTION NORMAL RESET ...
Page 167: ...STOP PROCESSING STATE MOTOROLA PROCESSING STATES 7 43 ...
Page 168: ...STOP PROCESSING STATE 7 44 PROCESSING STATES MOTOROLA ...
Page 169: ...MOTOROLA PORT A 8 1 SECTION 8 PORT A ...
Page 176: ...PORT A INTERFACE 8 8 PORT A MOTOROLA ...
Page 177: ...MOTOROLA PLL CLOCK OSCILLATOR 9 1 SECTION 9 PLL CLOCK OSCILLATOR x x d Φ VCO ...
Page 191: ...10 2 ON CHIP EMULATION OnCE MOTOROLA SECTION 10 ON CHIP EMULATION OnCE ...
Page 218: ...USING THE OnCE MOTOROLA ON CHIP EMULATION OnCE 10 29 ...
Page 604: ...INSTRUCTION ENCODING A 338 INSTRUCTION SET DETAILS MOTOROLA ...
Page 605: ...MOTOROLA BENCHMARK PROGRAMS B 1 APPENDIX B BENCHMARK PROGRAMS T T T T T P1 P3 P2 P4 T T T ...
Page 609: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 5 ...
Page 611: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 7 ...
Page 613: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 9 ...
Page 615: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 11 ...