diff options
author | Philipp Tomsich <philipp.tomsich@vrull.eu> | 2021-09-11 16:00:11 +0200 |
---|---|---|
committer | Alistair Francis <alistair.francis@wdc.com> | 2021-10-07 08:41:33 +1000 |
commit | d7a4fcb03433edefd19b7db3c4d20ed750b5833b (patch) | |
tree | ba8bcb1edd5a8edc309fc2782a44b216a881a98d /target/riscv/bitmanip_helper.c | |
parent | 16c38f36f5cb42bbfe7b9cd4bb29206a3ecab760 (diff) |
target/riscv: Add orc.b instruction for Zbb, removing gorc/gorci
The 1.0.0 version of Zbb does not contain gorc/gorci. Instead, a
orc.b instruction (equivalent to the orc.b pseudo-instruction built on
gorci from pre-0.93 draft-B) is available, mainly targeting
string-processing workloads.
This commit adds the new orc.b instruction and removed gorc/gorci.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911140016.834071-12-philipp.tomsich@vrull.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/bitmanip_helper.c')
-rw-r--r-- | target/riscv/bitmanip_helper.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/target/riscv/bitmanip_helper.c b/target/riscv/bitmanip_helper.c index 73be5a81c7..bb48388fcd 100644 --- a/target/riscv/bitmanip_helper.c +++ b/target/riscv/bitmanip_helper.c @@ -64,32 +64,6 @@ target_ulong HELPER(grevw)(target_ulong rs1, target_ulong rs2) return do_grev(rs1, rs2, 32); } -static target_ulong do_gorc(target_ulong rs1, - target_ulong rs2, - int bits) -{ - target_ulong x = rs1; - int i, shift; - - for (i = 0, shift = 1; shift < bits; i++, shift <<= 1) { - if (rs2 & shift) { - x |= do_swap(x, adjacent_masks[i], shift); - } - } - - return x; -} - -target_ulong HELPER(gorc)(target_ulong rs1, target_ulong rs2) -{ - return do_gorc(rs1, rs2, TARGET_LONG_BITS); -} - -target_ulong HELPER(gorcw)(target_ulong rs1, target_ulong rs2) -{ - return do_gorc(rs1, rs2, 32); -} - target_ulong HELPER(clmul)(target_ulong rs1, target_ulong rs2) { target_ulong result = 0; |