From 748406cf9b74d0cd0537768d68cbae926394ea5b Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 18 Sep 2011 19:45:38 +0300
Subject: [PATCH] drc: fix $ra evicting on JAL

hopefully for good this time
---
 libpcsxcore/new_dynarec/new_dynarec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 05c54eec..573d0cdb 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -690,6 +690,10 @@ void lsn(u_char hsn[], int i, int *preferred_reg)
     hsn[RHASH]=1;
     hsn[RHTBL]=1;
   }
+  // due to the way JAL is currently done we need DS not to evict $ra
+  if(i>0&&itype[i-1]==UJUMP&&rt1[i-1]==31) {
+    hsn[31]=0;
+  }
   // Coprocessor load/store needs FTEMP, even if not declared
   if(itype[i]==C1LS||itype[i]==C2LS) {
     hsn[FTEMP]=0;
-- 
2.39.5