122-32000 Parallax Inc, 122-32000 Datasheet - Page 405
122-32000
Manufacturer Part Number
122-32000
Description
MANUAL PROPELLER
Manufacturer
Parallax Inc
Specifications of 122-32000
Accessory Type
Manual
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
Propeller Education (PE) Kit
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Explanation
SUBS
SValue1 register.
If the
effect is specified, the C flag is set (1) if the subtraction resulted in a signed underflow. The
result is written to SValue1 unless the
SUBSX
Instruction: Subtract signed value plus C from another signed value.
SUBSX
Result: Difference of signed SValue1, and signed SValue2 plus C flag, is stored in SValue1.
Explanation
SUBSX
SValue1, and stores the result into the SValue1 register. Use the
or
bit subtractions, for example.
If the
(SValue2 + C) equals zero (use
effect is specified, the C flag is set (1) if the subtraction resulted in a signed underflow. The
result is written to SValue1 unless the
Note that in a multi-long signed operation, the first instruction is unsigned (ex:
middle instructions are unsigned, extended (ex:
extended (ex:
–INSTR– ZCRI –CON–
110111 001i 1111 ddddddddd sssssssss
SUBX
•
•
subtracts the signed SValue2 from the signed SValue1 and stores the result into the
WZ
WZ
(Subtract Signed, Extended) subtracts the signed value of SValue2 plus C from
SValue1,
(with the
SValue1
and is the destination in which to write the result.
SValue2
SValue1.
effect is specified, the Z flag is set (1) if SValue1 − SValue2 equals zero. If the
effect is specified, the Z flag is set (1) if Z was previously set and SValue1 −
SUBSX
(d-field) is the register containing the value to subtract SValue2 plus C from,
(s-field) is a register or a 9-bit literal whose value plus C is subtracted from
〈
#
WC
〉
, and optionally
).
SValue2
–DEST–
WC
–SRC–
5: Assembly Language Reference –
WZ
and
NR
NR
, effect) to perform multi-long, signed subtractions; 64-
effect is specified.
WZ
effect is specified.
on preceding
Z & (Result = 0)
Z Result
SUBX
), and the last instruction is signed,
SUB
Signed Underflow
or
Propeller Manual v1.0 · Page 405
C Result
SUBSX
SUBX
instruction). If the
instruction after a
Result
Written
SUB
Clocks
), any
4
SUB
WC
WC
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