diff --git a/gas/ChangeLog b/gas/ChangeLog
index dc7cb01582..342768f5c9 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* config/tc-arc.h (MAX_FLAG_NAME_LENGTH): Increase to 7.
+	* testsuite/gas/arc/nps400-2.d: New file.
+	* testsuite/gas/arc/nps400-2.s: New file.
+
 2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* config/tc-arc.c (struct arc_opcode_hash_entry_iterator): New
diff --git a/gas/config/tc-arc.h b/gas/config/tc-arc.h
index 7c193fec9d..076afeae34 100644
--- a/gas/config/tc-arc.h
+++ b/gas/config/tc-arc.h
@@ -211,7 +211,7 @@ extern int tc_arc_regname_to_dw2regnum (char *regname);
 #define NOP_OPCODE_S   0x000078E0
 #define NOP_OPCODE_L   0x264A7000 /* mov 0,0.  */
 
-#define MAX_FLAG_NAME_LENGTH 3
+#define MAX_FLAG_NAME_LENGTH 7
 
 struct arc_flags
 {
diff --git a/gas/testsuite/gas/arc/nps400-2.d b/gas/testsuite/gas/arc/nps400-2.d
new file mode 100644
index 0000000000..966907e9da
--- /dev/null
+++ b/gas/testsuite/gas/arc/nps400-2.d
@@ -0,0 +1,18 @@
+#as: -mcpu=nps400
+#objdump: -dr
+
+.*: +file format .*arc.*
+
+Disassembly of section .text:
+
+[0-9a-f]+ <.*>:
+   0:	3e6f 7004           	schd\.rw
+   4:	3e6f 7084           	schd\.rd
+   8:	3e6f 7044           	schd\.wft
+   c:	3e6f 7144           	schd\.wft\.ie1
+  10:	3e6f 7244           	schd\.wft\.ie2
+  14:	3e6f 7344           	schd\.wft\.ie12
+  18:	3e6f 703f           	sync\.rd
+  1c:	3e6f 707f           	sync\.wr
+  20:	3a6f 10bf           	hwschd\.off	r10
+  24:	3e6f 7503           	hwschd\.restore	0,r20
diff --git a/gas/testsuite/gas/arc/nps400-2.s b/gas/testsuite/gas/arc/nps400-2.s
new file mode 100644
index 0000000000..de4c83910e
--- /dev/null
+++ b/gas/testsuite/gas/arc/nps400-2.s
@@ -0,0 +1,16 @@
+        .text
+        ;; schd
+        schd.rw
+        schd.rd
+        schd.wft
+        schd.wft.ie1
+        schd.wft.ie2
+        schd.wft.ie12
+
+        ;; sync
+        sync.rd
+        sync.wr
+
+        ;; hwschd
+        hwschd.off      r10
+        hwschd.restore  0, r20
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 294a688f5f..a91544e0be 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,9 @@
+2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+	* arc-nps400-tbl.h: Add schd, sync, and hwschd instructions.
+	* arc-opc.c (arc_flag_operands): Add new flags.
+	(arc_flag_classes): Add new classes.
+
 2016-04-07  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* arc-opc.c (arc_opcodes): Extend comment to discus table layout.
diff --git a/opcodes/arc-nps400-tbl.h b/opcodes/arc-nps400-tbl.h
index dc7b066151..58d479fdd8 100644
--- a/opcodes/arc-nps400-tbl.h
+++ b/opcodes/arc-nps400-tbl.h
@@ -123,3 +123,20 @@
 
 /* crc32<.r> 0,limm,u6		00111 110 01 110100 R 111 uuuuuu 111110 */
 { "crc32", 0x3e74703e, 0xffff703f, ARC_OPCODE_NPS400, BITOP, NONE, { ZA, LIMM, UIMM6_20 }, { C_NPS_R }},
+
+/****                  Pipeline Control Instructions                  ****/
+
+/* schd<.rw|.rd> */
+{ "schd", 0x3e6f7004, 0xffffff7f, ARC_OPCODE_NPS400, CONTROL, NONE, { 0 }, { C_NPS_SCHD_RW }},
+
+/* schd.wft.<.ie1|.ie2|.ie12> */
+{ "schd", 0x3e6f7044, 0xfffffcff, ARC_OPCODE_NPS400, CONTROL, NONE, { 0 }, { C_NPS_SCHD_TRIG, C_NPS_SCHD_IE }},
+
+/* sync<.rd|.wr> */
+{ "sync", 0x3e6f703f, 0xffffffbf, ARC_OPCODE_NPS400, CONTROL, NONE, { 0 }, { C_NPS_SYNC }},
+
+/* hwscd.off B */
+{ "hwschd", 0x386f00bf, 0xf8ff8fff, ARC_OPCODE_NPS400, CONTROL, NONE, { RB }, { C_NPS_HWS_OFF }},
+
+/* hwscd.restore 0,C */
+{ "hwschd", 0x3e6f7003, 0xfffff03f, ARC_OPCODE_NPS400, CONTROL, NONE, { ZA, RC }, { C_NPS_HWS_RESTORE }},
diff --git a/opcodes/arc-opc.c b/opcodes/arc-opc.c
index 69c65fc017..d667a78d65 100644
--- a/opcodes/arc-opc.c
+++ b/opcodes/arc-opc.c
@@ -1003,6 +1003,37 @@ const struct arc_flag_operand arc_flag_operands[] =
 
 #define F_NPS_R     (F_NPS_FLAG + 1)
   { "r",  1, 1, 15, 1 },
+
+#define F_NPS_RW     (F_NPS_R + 1)
+  { "rw", 0, 1, 7, 1 },
+
+#define F_NPS_RD     (F_NPS_RW + 1)
+  { "rd", 1, 1, 7, 1 },
+
+#define F_NPS_WFT     (F_NPS_RD + 1)
+  { "wft", 0, 0, 0, 1 },
+
+#define F_NPS_IE1     (F_NPS_WFT + 1)
+  { "ie1", 1, 2, 8, 1 },
+
+#define F_NPS_IE2     (F_NPS_IE1 + 1)
+  { "ie2", 2, 2, 8, 1 },
+
+#define F_NPS_IE12     (F_NPS_IE2 + 1)
+  { "ie12", 3, 2, 8, 1 },
+
+#define F_NPS_SYNC_RD     (F_NPS_IE12 + 1)
+  { "rd", 0, 1, 6, 1 },
+
+#define F_NPS_SYNC_WR     (F_NPS_SYNC_RD + 1)
+  { "wr", 1, 1, 6, 1 },
+
+#define F_NPS_HWS_OFF     (F_NPS_SYNC_WR + 1)
+  { "off", 0, 0, 0, 1 },
+
+#define F_NPS_HWS_RESTORE     (F_NPS_HWS_OFF + 1)
+  { "restore", 0, 0, 0, 1 },
+
 };
 
 const unsigned arc_num_flag_operands = ARRAY_SIZE (arc_flag_operands);
@@ -1084,6 +1115,25 @@ const struct arc_flag_class arc_flag_classes[] =
 
 #define C_NPS_R     (C_NPS_F + 1)
   { F_CLASS_OPTIONAL, { F_NPS_R, F_NULL}},
+
+#define C_NPS_SCHD_RW     (C_NPS_R + 1)
+  { F_CLASS_REQUIRED, { F_NPS_RW, F_NPS_RD, F_NULL}},
+
+#define C_NPS_SCHD_TRIG     (C_NPS_SCHD_RW + 1)
+  { F_CLASS_REQUIRED, { F_NPS_WFT, F_NULL}},
+
+#define C_NPS_SCHD_IE     (C_NPS_SCHD_TRIG + 1)
+  { F_CLASS_OPTIONAL, { F_NPS_IE1, F_NPS_IE2, F_NPS_IE12, F_NULL}},
+
+#define C_NPS_SYNC     (C_NPS_SCHD_IE + 1)
+  { F_CLASS_REQUIRED, { F_NPS_SYNC_RD, F_NPS_SYNC_WR, F_NULL}},
+
+#define C_NPS_HWS_OFF     (C_NPS_SYNC + 1)
+  { F_CLASS_REQUIRED, { F_NPS_HWS_OFF, F_NULL}},
+
+#define C_NPS_HWS_RESTORE     (C_NPS_HWS_OFF + 1)
+  { F_CLASS_REQUIRED, { F_NPS_HWS_RESTORE, F_NULL}},
+
 };
 
 /* The operands table.