From cf4813f4ab37dfbc16c7e87bf27592d63d5a6f34 Mon Sep 17 00:00:00 2001
From: niravthakkar <thakkarniravb@gmail.com>
Date: Fri, 9 Dec 2016 19:24:55 +0530
Subject: [PATCH] Added SS-b support in C

---
 dynasm/dasm_s390x.h | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/dynasm/dasm_s390x.h b/dynasm/dasm_s390x.h
index 69e4fc14..e99dc39e 100644
--- a/dynasm/dasm_s390x.h
+++ b/dynasm/dasm_s390x.h
@@ -24,7 +24,7 @@ enum {
   DASM_REL_PC, DASM_LABEL_PC,
   DASM_DISP12, DASM_DISP20,
   DASM_IMM16, DASM_IMM32,
-  DASM_LEN8R,
+  DASM_LEN8R,DASM_LEN4HR,DASM_LEN4LR,
   DASM__MAX
 };
 
@@ -289,6 +289,14 @@ void dasm_put(Dst_DECL, int start, ...)
       CK(n >= 1 && n <= 256, RANGE_I);
       b[pos++] = n;
       break;
+    case DASM_LEN4HR:
+      CK(n >= 1 && n <= 128, RANGE_I);
+      b[pos++] = n;
+      break;
+    case DASM_LEN4LR:
+      CK(n >= 1 && n <= 128, RANGE_I);
+      b[pos++] = n;
+      break;
     }
   }
 stop:
@@ -370,6 +378,8 @@ int dasm_link(Dst_DECL, size_t * szp)
         case DASM_DISP20:
         case DASM_DISP12:
         case DASM_LEN8R:
+        case DASM_LEN4HR:
+        case DASM_LEN4LR:
           pos++;
           break;
         }
@@ -467,6 +477,12 @@ int dasm_encode(Dst_DECL, void *buffer)
         case DASM_LEN8R:
           cp[-1] |= (n - 1) & 0xff;
           break;
+        case DASM_LEN4HR:
+          cp[-1] |= (n - 1) & 0xf0;
+          break;
+        case DASM_LEN4LR:
+          cp[-1] |= (n - 1) & 0xof;
+          break;
         default:
           *cp++ = ins;
           break;