aboutsummaryrefslogtreecommitdiff
path: root/riscv/insns/rolw.h
diff options
context:
space:
mode:
authorClifford Wolf <clifford@clifford.at>2019-08-11 14:48:11 +0200
committerAndrew Waterman <andrew@sifive.com>2020-10-22 17:00:11 -0700
commit70d7081acb5be54ea7fa4c3f9ef9a6134a43519e (patch)
tree6bf1c33283d13b4b197047f225d45cd253ceaccf /riscv/insns/rolw.h
parentf1c24eff543e6f41980993f41ae1ab5ab80a7340 (diff)
downloadriscv-isa-sim-70d7081acb5be54ea7fa4c3f9ef9a6134a43519e.zip
riscv-isa-sim-70d7081acb5be54ea7fa4c3f9ef9a6134a43519e.tar.gz
riscv-isa-sim-70d7081acb5be54ea7fa4c3f9ef9a6134a43519e.tar.bz2
[riscv-bitmanip] Add bitmanip instructions
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'riscv/insns/rolw.h')
-rw-r--r--riscv/insns/rolw.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/riscv/insns/rolw.h b/riscv/insns/rolw.h
new file mode 100644
index 0000000..6d66a50
--- /dev/null
+++ b/riscv/insns/rolw.h
@@ -0,0 +1,5 @@
+require_rv64;
+require_extension('B');
+int shamt = RS2 & 31;
+int rshamt = -shamt & 31;
+WRITE_RD(sext32((RS1 << shamt) | (zext32(RS1) >> rshamt)));