diff options
| author | Clifford Wolf <clifford@clifford.at> | 2019-12-05 16:37:08 -0800 |
|---|---|---|
| committer | Andrew Waterman <andrew@sifive.com> | 2020-10-22 17:00:11 -0700 |
| commit | 672c50ca1605949aaa82992746ba7011f571aa89 (patch) | |
| tree | 7773d9bc757a52aaef0a76cf6753e66807bc2331 /riscv/insns/shfli.h | |
| parent | 147aef1628dca043e4b3de8a3b586f07ab46ae46 (diff) | |
| download | spike-672c50ca1605949aaa82992746ba7011f571aa89.zip spike-672c50ca1605949aaa82992746ba7011f571aa89.tar.gz spike-672c50ca1605949aaa82992746ba7011f571aa89.tar.bz2 | |
[riscv-bitmanip] Bugfixes in RV32B impl of CRC, SRO, [UN]SHFL
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'riscv/insns/shfli.h')
| -rw-r--r-- | riscv/insns/shfli.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/riscv/insns/shfli.h b/riscv/insns/shfli.h index 964638e..59fbcff 100644 --- a/riscv/insns/shfli.h +++ b/riscv/insns/shfli.h @@ -1,7 +1,7 @@ require_extension('B'); require(SHAMT < (xlen/2)); reg_t x = RS1; -int shamt = SHAMT & (xlen-1); +int shamt = SHAMT & ((xlen-1) >> 1); if (shamt & 16) x = (x & 0xFFFF00000000FFFFLL) | ((x & 0x0000FFFF00000000LL) >> 16) | ((x & 0x00000000FFFF0000LL) << 16); if (shamt & 8) x = (x & 0xFF0000FFFF0000FFLL) | ((x & 0x00FF000000FF0000LL) >> 8) | ((x & 0x0000FF000000FF00LL) << 8); if (shamt & 4) x = (x & 0xF00FF00FF00FF00FLL) | ((x & 0x0F000F000F000F00LL) >> 4) | ((x & 0x00F000F000F000F0LL) << 4); |