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Chapter 3 Functions
3.2 Functions
Bit Not TeST
Test inverted bit
[ Flag Change ]
[ Description Example ]
[ Function ]
[ Selectable src ]
BNTST BNTST
[ Syntax ]
BNTST src
Conditions
Z : The flag is set when
src
is 0; otherwise cleared.
C : The flag is set when
src
is 0; otherwise cleared.
BNTST flag
BNTST 4,Ram:8[SB]
BNTST 16,Ram:16[SB]
BNTST [A0]
[ Related Instructions ] BCLR,BSET,BNOT,BTST,BTSTC,BTSTS
src
bit,R0 bit,R1 bit,R2 bit,R3
bit,A0 bit,A1 [A0] [A1]
base:8[A0] base:8[A1] bit,base:8[SB] bit,base:8[FB]
base:16[A0] base:16[A1] bit,base:16[SB]
bit,base:16
C
bit,base:11[SB]
[ Operation ]
Z src
______
C src
UIOBSZDC
[ Instruction Code/Number of Cycles ]
Page=
157
• This instruction transfers inverted
src
to the Z flag and inverted
src
to the C flag.
Flag
Change
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