From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 26 Oct 2018 03:16:12 +0000 (+0100)
Subject: add to_elwidth function, not complete: needs to use source elwidths
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a62839128d8a73b95d725dc284383745ea6c5936;p=riscv-isa-sim.git

add to_elwidth function, not complete: needs to use source elwidths
---

diff --git a/riscv/sv.cc b/riscv/sv.cc
index 955cf46..0012649 100644
--- a/riscv/sv.cc
+++ b/riscv/sv.cc
@@ -12,6 +12,18 @@ int get_bitwidth(uint8_t elwidth, int xlen)
   }
 }
 
+/*
+int to_elwidth(uint8_t bitwidth, int xlen)
+{
+  switch (bitwidth) {
+      case xlen: return 0;
+      case 8: return 1;
+      case 16: return 2;
+      default: return 3;
+  }
+}
+*/
+
 sv_insn_t::sv_insn_t(processor_t *pr, bool _sv_enabled,
             insn_bits_t bits, unsigned int f, int _xlen,
             uint64_t &p_rd, uint64_t &p_rs1, uint64_t &p_rs2, uint64_t &p_rs3,
diff --git a/riscv/sv_reg.h b/riscv/sv_reg.h
index 08fa686..6908189 100644
--- a/riscv/sv_reg.h
+++ b/riscv/sv_reg.h
@@ -7,6 +7,7 @@
 #define zext_bwid(x,wid) (((reg_t)(x) << (64-wid)) >> (64-wid))
 
 extern int get_bitwidth(uint8_t elwidth, int xlen);
+//extern int to_elwidth(uint8_t bitwidth, int xlen);
 
 
 class sv_sreg_t;