dsp56800 Freescale Semiconductor, Inc, dsp56800 Datasheet - Page 394

• Manufacturer Part Number: dsp56800
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

TSTW
Instruction Fields:
Timing:
Memory:
A-164
Operation
TSTW
Refer to the preceding Instruction Fields table
Refer to the preceding Instruction Fields table
(except HWS)
X:(Rn+xxxx)
X:(R2+xx)
Operands
X:(Rn)+N
X:(Rn+N)
X:(SP-xx)
DDDDD
X:(Rn)+
X:(Rn)-
X:<<pp
X:xxxx
X:(Rn)
(Rn)-
X:aa
Test Register or Memory
DSP56800 Family Manual
C
2
2
4
6
4
4
2
2
4
2
W
1
1
1
2
1
1
1
1
2
1
Test 16-bit word in register. All registers allowed except
HWS. Limiting performed if an accumulator is specified
and the extension register is in use.
Test a word in memory using appropriate addressing
mode.
X:aa represents a 6-bit absolute address. Refer to Abso-
lute Short Address (Direct Addressing): <aa> on page
4-22.
X:<<pp represents a 6-bit absolute I/O address. Refer to
I/O Short Address (Direct Addressing): <pp> on page
4-23.
Test and decrement AGU register
Comments
Freescale Semiconductor
TSTW