Advanced Function Instruction
7-6
FUN 27 D P
NEG
NEGATION
(Take the negative value)
FUN 27 D P
NEG
D : Register to be negated
D may combine with V, Z, P0~P9 to serve indirect address
application
WY WM WS TMR CTR HR OR SR ROR DR XR
Range
Ope-
rand
WY0
∣
WY240
WM0
∣
WM1896
WS0
∣
WS984
T0
∣
T255
C0
∣
C255
R0
∣
R3839
R3904
∣
R3967
R3968
∣
R4167
R5000
∣
R8071
D0
∣
D4095
V、Z
P0~P9
D ○ ○ ○ ○ ○ ○ ○ ○* ○* ○ ○
z When operation control "EN" = 1 or "EN↑" ( P instruction) from 0 to 1, negate (ie. calculate 2's complement)
the value of the content of the register specified by D, and store it back in the original D register.
z If the value of the content of D is negative, then the negation operation will make it positive.
R 0
X0
EN
27P
NEG
z The instruction at left negates the value of the R0
register, and stores it back to R0.
D
R0
12345
)3039H
Ø
X0＝
D R0 −12345 )CFC7H
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