From: lkcl <lkcl@web>
Date: Fri, 25 Dec 2020 22:04:07 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: convert-csv-opcode-to-binary~880
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2f9db9087a562bcb7aea28bcf8a22071cd939b0c;p=libreriscv.git

---

diff --git a/openpower/sv/bitmanip.mdwn b/openpower/sv/bitmanip.mdwn
index 833cbdbfc..c2e5d1ed0 100644
--- a/openpower/sv/bitmanip.mdwn
+++ b/openpower/sv/bitmanip.mdwn
@@ -74,3 +74,23 @@ uint_xlen_t sz = 1LL << sz_log2; uint_xlen_t mask = (1LL << sz) - 1; for (int i
 r |= ((rs1 >> pos) & mask) << i; }return r;
 uint_xlen_t xperm_n (uint_xlen_t rs1, uint_xlen_t rs2) { return xperm(rs1, rs2, 2); } uint_xlen_t xperm_b (uint_xlen_t rs1, uint_xlen_t rs2) { return xperm(rs1, rs2, 3); } uint_xlen_t xperm_h (uint_xlen_t rs1, uint_xlen_t rs2) { return xperm(rs1, rs2, 4); } uint_xlen_t xperm_w (uint_xlen_t rs1, uint_xlen_t rs2) { return xperm(rs1, rs2, 5); }
 ```
+
+# gorc
+
+```
+uint32_t gorc32(uint32_t rs1, uint32_t rs2) { uint32_t x = rs1;
+}
+int shamt = rs2 & 31;
+if (shamt & 1) x |= ((x & 0x55555555) << 1) | ((x & 0xAAAAAAAA) >> 1); if (shamt & 2) x |= ((x & 0x33333333) << 2) | ((x & 0xCCCCCCCC) >> 2); if (shamt & 4) x |= ((x & 0x0F0F0F0F) << 4) | ((x & 0xF0F0F0F0) >> 4); if (shamt & 8) x |= ((x & 0x00FF00FF) << 8) | ((x & 0xFF00FF00) >> 8); if (shamt & 16) x |= ((x & 0x0000FFFF) << 16) | ((x & 0xFFFF0000) >> 16); return x;
+uint64_t gorc64(uint64_t rs1, uint64_t rs2) { uint64_t x = rs1;
+}
+int shamt = rs2 & 63;
+if (shamt & 1) x |= ((x & 0x5555555555555555LL) << 1) |
+((x & 0xAAAAAAAAAAAAAAAALL) >> 1); if (shamt & 2) x |= ((x & 0x3333333333333333LL) << 2) |
+((x & 0xCCCCCCCCCCCCCCCCLL) >> 2); if (shamt & 4) x |= ((x & 0x0F0F0F0F0F0F0F0FLL) << 4) |
+((x & 0xF0F0F0F0F0F0F0F0LL) >> 4); if (shamt & 8) x |= ((x & 0x00FF00FF00FF00FFLL) << 8) |
+((x & 0xFF00FF00FF00FF00LL) >> 8); if (shamt & 16) x |= ((x & 0x0000FFFF0000FFFFLL) << 16) |
+((x & 0xFFFF0000FFFF0000LL) >> 16); if (shamt & 32) x |= ((x & 0x00000000FFFFFFFFLL) << 32) |
+return x;
+((x & 0xFFFFFFFF00000000LL) >> 32);
+```