Renesas Renasas Single-Chip Microcomputer SH7086 Manual de usuario Pagina 76

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Chapter 3 Functions
3.2 Functions
Bit TeST
Test bit
[ Flag Change ]
[ Function ]
[ Related Instructions ] BCLR,BSET,BNOT,BNTST,BTSTC,BTSTS
[ Selectable src ]
BTST BTST
[ Syntax ]
BTST (:format) src
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]
*1
*1 This
src
can only be selected when in S format.
[ Description Example ]
BTST flag
BTST 4,Ram:8[SB]
BTST 16,Ram:16[SB]
BTST [A0]
G , S (Can be specified)
[ Operation ]
______
Z src
C src
UIOBSZDC
Conditions
Z : The flag is set when
src
is 0; otherwise cleared.
C : The flag is set when
src
is 1; otherwise cleared.
This instruction transfers inverted
src
to the Z flag and non-inverted
src
to the C flag.
Change
[ Instruction Code/Number of Cycles ]
Page=
160
Flag
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