--- binutils-2.25.1.orig/gas/config/tc-sh.c
+++ binutils-2.25.1/gas/config/tc-sh.c
@@ -1730,6 +1730,11 @@
 		goto fail;
 	      break;
 
+	    case A_IND_0:
+	      if (user->type != A_IND_N || user->reg != 0)
+		goto fail;
+	      break;
+
 	    case A_REG_N:
 	    case A_INC_N:
 	    case A_DEC_N:
--- binutils-2.25.1.orig/opcodes/sh-dis.c
+++ binutils-2.25.1/opcodes/sh-dis.c
@@ -703,6 +703,9 @@
 	    case AS_DEC_N:
 	      fprintf_fn (stream, "@-r%d", rn);
 	      break;
+	    case A_IND_0:
+	      fprintf_fn (stream, "@r0");
+	      break;
 	    case A_IND_N:
 	    case AS_IND_N:
 	      fprintf_fn (stream, "@r%d", rn);
--- binutils-2.25.1.orig/opcodes/sh-opc.h
+++ binutils-2.25.1/opcodes/sh-opc.h
@@ -112,6 +112,7 @@
     A_IMM,
     A_INC_M,
     A_INC_N,
+    A_IND_0,
     A_IND_M,
     A_IND_N,
     A_IND_R0_REG_M,
@@ -410,6 +411,8 @@
 /* 10001111i8p1.... bf.s <bdisp8>       */{"bf.s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}, arch_sh2_up},
 
 /* 10001111i8p1.... bf/s <bdisp8>       */{"bf/s",{A_BDISP8},{HEX_8,HEX_F,BRANCH_8}, arch_sh2_up},
+
+/* 0010nnnnmmmm0011 cas.l <REG_M>,<REG_N>,@R0*/{"cas.l",{A_REG_M,A_REG_N,A_IND_0},{HEX_2,REG_N,REG_M,HEX_3}, arch_sh2_up},
 
 /* 0000000010001000 clrdmxy             */{"clrdmxy",{0},{HEX_0,HEX_0,HEX_8,HEX_8}, arch_sh4al_dsp_up},