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3
3-28
M32R-FPU Software Manual (Rev.1.01)
BTSTBTST
INSTRUCTIONS
3.2 Instruction description
bit operation Instructions
Bit test
[M32R-FPU Extended Instruction]
[Mnemonic]
BTST #bitpos,Rsrc
[Function]
Remove the bit specified by the register.
C = Rsrc >> ( 7-bitpos ) ) &1;
[Description]
Take out the bit specified as bitpos within the Rsrc lower eight bits and sets it in the condition
bit (C). bitpos becomes 0 to 7, MSB becomes 0 and LSB becomes 7.
[EIT occurrence]
None
[Encoding]
bitpos
0000
BTST #bitpos,Rsrc
src1111
0
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