From: Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU>
Date: Mon, 27 Dec 2010 22:28:45 +0000 (-0800)
Subject: [sim] cleaned up handling of link register
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=53e36319bc38b17d1cc98037322391f0606e8239;p=riscv-isa-sim.git

[sim] cleaned up handling of link register
---

diff --git a/riscv/decode.h b/riscv/decode.h
index 903eef5..189e184 100644
--- a/riscv/decode.h
+++ b/riscv/decode.h
@@ -173,6 +173,7 @@ private:
 #define RS1 R[insn.rtype.rs1]
 #define RS2 R[insn.rtype.rs2]
 #define RD do_writeback(R,insn.rtype.rd)
+#define RA do_writeback(R,1)
 #define FRS1 FR[insn.ftype.rs1]
 #define FRS2 FR[insn.ftype.rs2]
 #define FRS3 FR[insn.ftype.rs3]
diff --git a/riscv/insns/jal.h b/riscv/insns/jal.h
index 7a70307..bca7241 100644
--- a/riscv/insns/jal.h
+++ b/riscv/insns/jal.h
@@ -1,2 +1,2 @@
-R[1] = npc;
+RA = npc;
 npc = JUMP_TARGET;