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Frozen
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The XTheadBs extension is stable.
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The XTheadBs ISA extension provides instructions to access a single bit in a register.
Extension version: 1.0.
The table below gives an overview of the instructions:
| RV32 | RV64 | Mnemonic | Instruction |
|---|---|---|---|
Y |
Y |
th.tst rd, rs1, imm6 |
The XTheadBs extension’s availability can be probed via the
th.sxstatus.THEADISAEE bit (bit 22).
The XTheadBs extension is available if and only if this bit is 1.
Refer to [xtheadsxstatus] for more information about the th.sxstatus CSR.