Add Score test files

31 files changed, 2247 insertions, 0 deletions

diff --git a/gas/testsuite/gas/score/addi.d b/gas/testsuite/gas/score/addi.d
new file mode 100644
index 0000000..148ecd7
--- /dev/null
+++ b/gas/testsuite/gas/score/addi.d
@@ -0,0 +1,33 @@
+#as:
+#objdump: -d
+#source: addi.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+   0:	84008003 	addi.c		r0, 1
+   4:	84008003 	addi.c		r0, 1
+   8:	85e08021 	addi.c		r15, 16
+   c:	85e08021 	addi.c		r15, 16
+  10:	85e18001 	addi.c		r15, 16384
+  14:	85e18001 	addi.c		r15, 16384
+  18:	6818      	addei!		r8, 3
+  1a:	6818      	addei!		r8, 3
+  1c:	6f78      	addei!		r15, 15
+  1e:	0000      	nop!
+  20:	85e1ffff 	addi.c		r15, 32767
+	...
+  30:	8403ffff 	addi.c		r0, -1
+  34:	8403ffff 	addi.c		r0, -1
+  38:	85e3ffe1 	addi.c		r15, -16
+  3c:	85e3ffe1 	addi.c		r15, -16
+  40:	85e38001 	addi.c		r15, -16384
+  44:	85e38001 	addi.c		r15, -16384
+  48:	6898      	subei!		r8, 3
+  4a:	6898      	subei!		r8, 3
+  4c:	6ff8      	subei!		r15, 15
+  4e:	0000      	nop!
+  50:	85e1ffff 	addi.c		r15, 32767
+#pass
diff --git a/gas/testsuite/gas/score/addi.s b/gas/testsuite/gas/score/addi.s
new file mode 100644
index 0000000..e87620e
--- /dev/null
+++ b/gas/testsuite/gas/score/addi.s
@@ -0,0 +1,37 @@
+/*
+ * test relax
+ * addi <-> addei! : for addei : register number must be in 0-15, offset : 4b, only 16b -> 32b
+ *   (1)addi rD, simm16 : rD = rD + simm16, -32768 <= simm16 <= 32767
+ *   (2)addei! rD, imm4 : rD = rD + 2**imm4
+ * addi <-> subei! : for addei : register number must be in 0-15, offset : 4b, only 16b -> 32b
+ *   (1)addi rD, simm16 : rD = rD + simm16, -32768 <= simm16 <= 32767
+ *   (2)subei! rD, imm4 : rD = rD + 2**imm4
+	
+ * Author: ligang
+ */
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16, sign
+.align 4
+	
+  \insn16 r0, 0                  #16b -> 32b
+  \insn32 r0, \sign * 1         
+
+  \insn16 r15, 4                 #16b -> 32b
+  \insn32 r15, \sign * 16
+
+  \insn16 r15, 14                #16b -> 32b
+  \insn32 r15, \sign * 1024 * 16
+
+  \insn16 r8, 3                  #No transform
+  \insn16 r8, 3                  #No transform
+
+  \insn16 r15, 15                #No transform. Because 2**15 = 32768, extend range of addi
+  \insn32 r15, 0x7FFF
+
+.endm
+
+.text
+
+  tran1632 "addi.c", "addei!", 1
+  tran1632 "addi.c", "subei!", -1
diff --git a/gas/testsuite/gas/score/b.d b/gas/testsuite/gas/score/b.d
new file mode 100644
index 0000000..ae2b07a
--- /dev/null
+++ b/gas/testsuite/gas/score/b.d
@@ -0,0 +1,18 @@
+#as:
+#objdump: -d
+#source: b.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <L1>:
+   0:	4f00      	b!		0x0 <L1>
+   2:	4fff      	b!		0x0 <L1>
+   4:	4ffe      	b!		0x0 <L1>
+   6:	4ffd      	b!		0x0 <L1>
+   8:	4ffc      	b!		0x0 <L1>
+   a:	4ffb      	b!		0x0 <L1>
+   c:	93ffbff4 	b		0x0 <L1>
+  10:	8254e010 	add		r18, r20, r24
+#pass
diff --git a/gas/testsuite/gas/score/b.s b/gas/testsuite/gas/score/b.s
new file mode 100644
index 0000000..002347c
--- /dev/null
+++ b/gas/testsuite/gas/score/b.s
@@ -0,0 +1,30 @@
+/*
+ * test relax
+ * b <-> b! : jump range must be in 8 bit, only 32b -> 16b
+	
+ * Author: ligang
+ */
+
+.macro tran insn32, insn16
+/* This block transform 32b instruction to 16b. */
+.align 4
+
+  \insn32               #32b -> 16b
+  \insn16
+
+  \insn32               #32b -> 16b
+  \insn32               #32b -> 16b
+
+  \insn16      
+  \insn32               #32b -> 16b
+
+  \insn32               #No transform
+  add r18, r20, r24
+
+.endm
+
+L1:
+	
+  tran "b L1", "b! L1"
+  #tran "b 0x8", "b! 0x8"
+ 
diff --git a/gas/testsuite/gas/score/bittst.d b/gas/testsuite/gas/score/bittst.d
new file mode 100644
index 0000000..0bb6651
--- /dev/null
+++ b/gas/testsuite/gas/score/bittst.d
@@ -0,0 +1,36 @@
+#as:
+#objdump: -d
+#source: bittst.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	6016      	bittst!		r0, 0x2
+   2:	6016      	bittst!		r0, 0x2
+   4:	6f26      	bittst!		r15, 0x4
+   6:	6f26      	bittst!		r15, 0x4
+   8:	6f0e      	bittst!		r15, 0x1
+   a:	6f0e      	bittst!		r15, 0x1
+   c:	6f1e      	bittst!		r15, 0x3
+   e:	6f1e      	bittst!		r15, 0x3
+  10:	6816      	bittst!		r8, 0x2
+  12:	6816      	bittst!		r8, 0x2
+  14:	800f842d 	bittst.c	r15, 0x1
+  18:	801a902d 	bittst.c	r26, 0x4
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	8000882d 	bittst.c	r0, 0x2
+  24:	8014882d 	bittst.c	r20, 0x2
+  28:	81ef902d 	bittst.c	r15, 0x4
+  2c:	8019902d 	bittst.c	r25, 0x4
+  30:	81ef842d 	bittst.c	r15, 0x1
+  34:	8019842d 	bittst.c	r25, 0x1
+  38:	680e      	bittst!		r8, 0x1
+  3a:	680e      	bittst!		r8, 0x1
+  3c:	6626      	bittst!		r6, 0x4
+  3e:	6626      	bittst!		r6, 0x4
+  40:	671e      	bittst!		r7, 0x3
+  42:	671e      	bittst!		r7, 0x3
+#pass
diff --git a/gas/testsuite/gas/score/bittst.s b/gas/testsuite/gas/score/bittst.s
new file mode 100644
index 0000000..b6657b9
--- /dev/null
+++ b/gas/testsuite/gas/score/bittst.s
@@ -0,0 +1,59 @@
+/*
+ * test relax
+ * bittst.c <-> bittst! : register number must be in 0-15
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+
+  \insn32 r0, 2         #32b -> 16b
+  \insn16 r0, 2
+
+  \insn32 r15, 4        #32b -> 16b
+  \insn16 r15, 4
+
+  \insn32 r15, 1        #32b -> 16b
+  \insn16 r15, 1
+
+  \insn16 r15, 3
+  \insn32 r15, 3        #32b -> 16b
+
+  \insn32 r8,  2        #32b -> 16b
+  \insn32 r8,  2        #32b -> 16b
+
+  \insn32 r15, 1        #No transform
+  \insn32 r26, 4
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, 2         #16b -> 32b
+  \insn32 r20, 2         
+
+  \insn16 r15, 4        #16b -> 32b
+  \insn32 r25, 4
+
+  \insn16 r15, 1        #16b -> 32b
+  \insn32 r25, 1
+
+  \insn16 r8, 1         #No transform
+  \insn16 r8, 1         #No transform
+	
+  \insn16 r6, 4         #No transform
+  \insn32 r6, 4         #32b -> 16b
+
+  \insn32 r7, 3         #32b -> 16b
+  \insn16 r7, 3         #No transform
+	
+.endm
+
+.text
+
+  tran3216 "bittst.c", "bittst!"
+  tran1632 "bittst.c", "bittst!"
+	
diff --git a/gas/testsuite/gas/score/br.d b/gas/testsuite/gas/score/br.d
new file mode 100644
index 0000000..273632f
--- /dev/null
+++ b/gas/testsuite/gas/score/br.d
@@ -0,0 +1,49 @@
+#as:
+#objdump: -d
+#source: br.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+   0:	0f04      	br!		r0
+   2:	0f04      	br!		r0
+   4:	0ff4      	br!		r15
+   6:	0ff4      	br!		r15
+   8:	0f34      	br!		r3
+   a:	0f34      	br!		r3
+   c:	0f54      	br!		r5
+   e:	0f54      	br!		r5
+  10:	8003bc08 	br		r3
+  14:	801fbc08 	br		r31
+	...
+  20:	0f0c      	brl!		r0
+  22:	0f0c      	brl!		r0
+  24:	0ffc      	brl!		r15
+  26:	0ffc      	brl!		r15
+  28:	0f3c      	brl!		r3
+  2a:	0f3c      	brl!		r3
+  2c:	0f5c      	brl!		r5
+  2e:	0f5c      	brl!		r5
+  30:	8003bc09 	brl		r3
+  34:	801fbc09 	brl		r31
+	...
+  40:	8000bc08 	br		r0
+  44:	8017bc08 	br		r23
+  48:	800fbc08 	br		r15
+  4c:	801bbc08 	br		r27
+  50:	0f64      	br!		r6
+  52:	0f64      	br!		r6
+  54:	0f34      	br!		r3
+  56:	0f34      	br!		r3
+	...
+  60:	8000bc09 	brl		r0
+  64:	8017bc09 	brl		r23
+  68:	800fbc09 	brl		r15
+  6c:	801bbc09 	brl		r27
+  70:	0f6c      	brl!		r6
+  72:	0f6c      	brl!		r6
+  74:	0f3c      	brl!		r3
+  76:	0f3c      	brl!		r3
+#pass
diff --git a/gas/testsuite/gas/score/br.s b/gas/testsuite/gas/score/br.s
new file mode 100644
index 0000000..e60e058
--- /dev/null
+++ b/gas/testsuite/gas/score/br.s
@@ -0,0 +1,53 @@
+/*
+ * test relax
+ * br <-> br!   : register number must be in 0-15
+ * brl <-> brl! : register number must be in 0-15
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0      #32b -> 16b
+  \insn16 r0
+
+  \insn32 r15     #32b -> 16b
+  \insn16 r15
+
+  \insn32 r3      #32b -> 16b
+  \insn32 r3      #32b -> 16b
+
+  \insn16 r5      
+  \insn32 r5      #32b -> 16b
+
+  \insn32 r3      #No transform
+  \insn32 r31     #No transform
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0        #16b -> 32b
+  \insn32 r23    
+
+  \insn16 r15       #16b -> 32b
+  \insn32 r27     
+
+  \insn16 r6        #No transform
+  \insn32 r6
+
+  \insn16 r3        #No transform
+  \insn16 r3
+
+.endm
+
+  tran3216 "br", "br!"
+  tran3216 "brl", "brl!"
+
+  tran1632 "br", "br!"
+  tran1632 "brl", "brl!"
+
diff --git a/gas/testsuite/gas/score/ldi.d b/gas/testsuite/gas/score/ldi.d
new file mode 100644
index 0000000..edd806d
--- /dev/null
+++ b/gas/testsuite/gas/score/ldi.d
@@ -0,0 +1,29 @@
+#as:
+#objdump: -d
+#source: ldi.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	5200      	ldiu!		r2, 0
+   2:	5200      	ldiu!		r2, 0
+   4:	53ff      	ldiu!		r3, 255
+   6:	53ff      	ldiu!		r3, 255
+   8:	5409      	ldiu!		r4, 9
+   a:	5409      	ldiu!		r4, 9
+   c:	53ff      	ldiu!		r3, 255
+   e:	53ff      	ldiu!		r3, 255
+  10:	85188006 	ldi		r8, 0x3\(3\)
+  14:	87388006 	ldi		r25, 0x3\(3\)
+	...
+  20:	84588000 	ldi		r2, 0x0\(0\)
+  24:	87388000 	ldi		r25, 0x0\(0\)
+  28:	847881fe 	ldi		r3, 0xff\(255\)
+  2c:	86f88002 	ldi		r23, 0x1\(1\)
+  30:	5fff      	ldiu!		r15, 255
+  32:	5fff      	ldiu!		r15, 255
+  34:	5803      	ldiu!		r8, 3
+  36:	5803      	ldiu!		r8, 3
+#pass
diff --git a/gas/testsuite/gas/score/ldi.s b/gas/testsuite/gas/score/ldi.s
new file mode 100644
index 0000000..d180da3
--- /dev/null
+++ b/gas/testsuite/gas/score/ldi.s
@@ -0,0 +1,53 @@
+/*
+ * test relax
+ * ldi <-> ldiu! : for ldiu! : register number must be in 0-15, simm16:	[0-255]
+ *   (1)ldi rD, simm16 : rD = simm16
+ *   (2)ldiu! rD, imm8 : rD = ZE(imm8)
+ 	
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+	
+  \insn32 r2, 0                  #32b -> 16b
+  \insn16 r2, 0
+
+  \insn32 r3, 255                #32b -> 16b
+  \insn16 r3, 255
+
+  \insn32 r4, 9                  #32b -> 16b
+  \insn32 r4, 9                  #32b -> 16b
+
+  \insn16 r3, 255
+  \insn32 r3, 255                #32b -> 16b
+	
+  \insn32 r8, 3                  #No transform
+  \insn32 r25, 3                 #No transform
+
+	
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+	
+  \insn16 r2, 0                  #16b -> 32b
+  \insn32 r25, 0  
+
+  \insn16 r3, 255                #16b -> 32b
+  \insn32 r23, 1  
+
+  \insn16 r15, 255               #No transform
+  \insn32 r15, 255
+
+  \insn16 r8, 3                  #No transform
+  \insn16 r8, 3                  #No transform
+
+.endm
+
+.text
+
+  tran3216 "ldi", "ldiu!"
+  tran1632 "ldi", "ldiu!"
diff --git a/gas/testsuite/gas/score/ls32ls16.d b/gas/testsuite/gas/score/ls32ls16.d
new file mode 100644
index 0000000..8ff8e10
--- /dev/null
+++ b/gas/testsuite/gas/score/ls32ls16.d
@@ -0,0 +1,144 @@
+#as:
+#objdump: -d
+#source: ls32ls16.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+	...
+  10:	2038      	lw!		r0, \[r3\]
+  12:	2038      	lw!		r0, \[r3\]
+  14:	23f8      	lw!		r3, \[r15\]
+  16:	23f8      	lw!		r3, \[r15\]
+  18:	2f88      	lw!		r15, \[r8\]
+  1a:	2f88      	lw!		r15, \[r8\]
+  1c:	c0888000 	lw		r4, \[r8, 0\]
+  20:	c3338000 	lw		r25, \[r19, 0\]
+  24:	2578      	lw!		r5, \[r7\]
+  26:	2578      	lw!		r5, \[r7\]
+  28:	2238      	lw!		r2, \[r3\]
+  2a:	2238      	lw!		r2, \[r3\]
+	...
+  40:	2039      	lh!		r0, \[r3\]
+  42:	2039      	lh!		r0, \[r3\]
+  44:	23f9      	lh!		r3, \[r15\]
+  46:	23f9      	lh!		r3, \[r15\]
+  48:	2f89      	lh!		r15, \[r8\]
+  4a:	2f89      	lh!		r15, \[r8\]
+  4c:	c4888000 	lh		r4, \[r8, 0\]
+  50:	c7338000 	lh		r25, \[r19, 0\]
+  54:	2579      	lh!		r5, \[r7\]
+  56:	2579      	lh!		r5, \[r7\]
+  58:	2239      	lh!		r2, \[r3\]
+  5a:	2239      	lh!		r2, \[r3\]
+	...
+ 110:	203b      	lbu!		r0, \[r3\]
+ 112:	203b      	lbu!		r0, \[r3\]
+ 114:	23fb      	lbu!		r3, \[r15\]
+ 116:	23fb      	lbu!		r3, \[r15\]
+ 118:	2f8b      	lbu!		r15, \[r8\]
+ 11a:	2f8b      	lbu!		r15, \[r8\]
+ 11c:	d8888000 	lbu		r4, \[r8, 0\]
+ 120:	db338000 	lbu		r25, \[r19, 0\]
+ 124:	257b      	lbu!		r5, \[r7\]
+ 126:	257b      	lbu!		r5, \[r7\]
+ 128:	223b      	lbu!		r2, \[r3\]
+ 12a:	223b      	lbu!		r2, \[r3\]
+	...
+ 210:	203c      	sw!		r0, \[r3\]
+ 212:	203c      	sw!		r0, \[r3\]
+ 214:	23fc      	sw!		r3, \[r15\]
+ 216:	23fc      	sw!		r3, \[r15\]
+ 218:	2f8c      	sw!		r15, \[r8\]
+ 21a:	2f8c      	sw!		r15, \[r8\]
+ 21c:	d0888000 	sw		r4, \[r8, 0\]
+ 220:	d3338000 	sw		r25, \[r19, 0\]
+ 224:	257c      	sw!		r5, \[r7\]
+ 226:	257c      	sw!		r5, \[r7\]
+ 228:	223c      	sw!		r2, \[r3\]
+ 22a:	223c      	sw!		r2, \[r3\]
+ 22c:	0000      	nop!
+ 22e:	0000      	nop!
+ 230:	203d      	sh!		r0, \[r3\]
+ 232:	203d      	sh!		r0, \[r3\]
+ 234:	23fd      	sh!		r3, \[r15\]
+ 236:	23fd      	sh!		r3, \[r15\]
+ 238:	2f8d      	sh!		r15, \[r8\]
+ 23a:	2f8d      	sh!		r15, \[r8\]
+ 23c:	d4888000 	sh		r4, \[r8, 0\]
+ 240:	d7338000 	sh		r25, \[r19, 0\]
+ 244:	257d      	sh!		r5, \[r7\]
+ 246:	257d      	sh!		r5, \[r7\]
+ 248:	223d      	sh!		r2, \[r3\]
+ 24a:	223d      	sh!		r2, \[r3\]
+ 24c:	0000      	nop!
+ 24e:	0000      	nop!
+ 250:	203f      	sb!		r0, \[r3\]
+ 252:	203f      	sb!		r0, \[r3\]
+ 254:	23ff      	sb!		r3, \[r15\]
+ 256:	23ff      	sb!		r3, \[r15\]
+ 258:	2f8f      	sb!		r15, \[r8\]
+ 25a:	2f8f      	sb!		r15, \[r8\]
+ 25c:	dc888000 	sb		r4, \[r8, 0\]
+ 260:	df338000 	sb		r25, \[r19, 0\]
+ 264:	257f      	sb!		r5, \[r7\]
+ 266:	257f      	sb!		r5, \[r7\]
+ 268:	223f      	sb!		r2, \[r3\]
+ 26a:	223f      	sb!		r2, \[r3\]
+ 26c:	0000      	nop!
+ 26e:	0000      	nop!
+ 270:	c0038000 	lw		r0, \[r3, 0\]
+ 274:	c257800a 	lw		r18, \[r23, 10\]
+ 278:	c1e08000 	lw		r15, \[r0, 0\]
+ 27c:	c23a800a 	lw		r17, \[r26, 10\]
+ 280:	2688      	lw!		r6, \[r8\]
+ 282:	2688      	lw!		r6, \[r8\]
+ 284:	2378      	lw!		r3, \[r7\]
+ 286:	2378      	lw!		r3, \[r7\]
+	...
+ 290:	c4038000 	lh		r0, \[r3, 0\]
+ 294:	c657800a 	lh		r18, \[r23, 10\]
+ 298:	c5e08000 	lh		r15, \[r0, 0\]
+ 29c:	c63a800a 	lh		r17, \[r26, 10\]
+ 2a0:	2689      	lh!		r6, \[r8\]
+ 2a2:	2689      	lh!		r6, \[r8\]
+ 2a4:	2379      	lh!		r3, \[r7\]
+ 2a6:	2379      	lh!		r3, \[r7\]
+	...
+ 2b0:	d8038000 	lbu		r0, \[r3, 0\]
+ 2b4:	da57800a 	lbu		r18, \[r23, 10\]
+ 2b8:	d9e08000 	lbu		r15, \[r0, 0\]
+ 2bc:	da3a800a 	lbu		r17, \[r26, 10\]
+ 2c0:	268b      	lbu!		r6, \[r8\]
+ 2c2:	268b      	lbu!		r6, \[r8\]
+ 2c4:	237b      	lbu!		r3, \[r7\]
+ 2c6:	237b      	lbu!		r3, \[r7\]
+	...
+ 2d0:	d0038000 	sw		r0, \[r3, 0\]
+ 2d4:	d257800a 	sw		r18, \[r23, 10\]
+ 2d8:	d1e08000 	sw		r15, \[r0, 0\]
+ 2dc:	d23a800a 	sw		r17, \[r26, 10\]
+ 2e0:	268c      	sw!		r6, \[r8\]
+ 2e2:	268c      	sw!		r6, \[r8\]
+ 2e4:	237c      	sw!		r3, \[r7\]
+ 2e6:	237c      	sw!		r3, \[r7\]
+	...
+ 2f0:	d4038000 	sh		r0, \[r3, 0\]
+ 2f4:	d657800a 	sh		r18, \[r23, 10\]
+ 2f8:	d5e08000 	sh		r15, \[r0, 0\]
+ 2fc:	d63a800a 	sh		r17, \[r26, 10\]
+ 300:	268d      	sh!		r6, \[r8\]
+ 302:	268d      	sh!		r6, \[r8\]
+ 304:	237d      	sh!		r3, \[r7\]
+ 306:	237d      	sh!		r3, \[r7\]
+	...
+ 310:	dc038000 	sb		r0, \[r3, 0\]
+ 314:	de57800a 	sb		r18, \[r23, 10\]
+ 318:	dde08000 	sb		r15, \[r0, 0\]
+ 31c:	de3a800a 	sb		r17, \[r26, 10\]
+ 320:	268f      	sb!		r6, \[r8\]
+ 322:	268f      	sb!		r6, \[r8\]
+ 324:	237f      	sb!		r3, \[r7\]
+ 326:	237f      	sb!		r3, \[r7\]
diff --git a/gas/testsuite/gas/score/ls32ls16.s b/gas/testsuite/gas/score/ls32ls16.s
new file mode 100644
index 0000000..387d41d
--- /dev/null
+++ b/gas/testsuite/gas/score/ls32ls16.s
@@ -0,0 +1,70 @@
+/*
+ * test relax
+ * lw <-> lw!   : register number must be in 0-15, offset == 0
+ * lh <-> lh!   : register number must be in 0-15, offset == 0
+ * lbu <-> lbu! : register number must be in 0-15, offset == 0
+ * sw <-> sw!   : register number must be in 0-15, offset == 0
+ * sh <-> sh!   : register number must be in 0-15, offset == 0
+ * sb <-> sb!   : register number must be in 0-15, offset == 0
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0, [r3, 0]     #32b -> 16b
+  \insn16 r0, [r3]
+
+  \insn32 r3, [r15, 0]    #32b -> 16b
+  \insn16 r3, [r15]
+
+  \insn32 r15, [r8, 0]    #32b -> 16b
+  \insn16 r15, [r8]
+
+  \insn32 r4, [r8, 0]     #No transform
+  \insn32 r25, [r19, 0]
+
+  \insn32 r5, [r7, 0]     #32b -> 16b
+  \insn32 r5, [r7, 0]     #32b -> 16b
+
+  \insn16 r2, [r3]  
+  \insn32 r2, [r3, 0]     #32b -> 16b
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, [r3]        #16b -> 32b
+  \insn32 r18, [r23, 10]     
+
+  \insn16 r15, [r0]       #16b -> 32b
+  \insn32 r17, [r26, 10]     
+
+  \insn16 r6, [r8]        #No transform
+  \insn16 r6, [r8]        #No transform
+
+  \insn16 r3, [r7]        #No transform
+  \insn32 r3, [r7, 0]
+
+.endm
+.space 1
+  tran3216 "lw", "lw!"
+.fill 10, 1
+  tran3216 "lh", "lh!"
+.org 0x101
+  tran3216 "lbu", "lbu!"
+.org 0x203
+  tran3216 "sw", "sw!"
+  tran3216 "sh", "sh!"
+  tran3216 "sb", "sb!"
+
+  tran1632 "lw", "lw!"
+  tran1632 "lh", "lh!"
+  tran1632 "lbu", "lbu!"
+  tran1632 "sw", "sw!"
+  tran1632 "sh", "sh!"
+  tran1632 "sb", "sb!"
diff --git a/gas/testsuite/gas/score/ls32ls16p.d b/gas/testsuite/gas/score/ls32ls16p.d
new file mode 100644
index 0000000..aa1d3a6
--- /dev/null
+++ b/gas/testsuite/gas/score/ls32ls16p.d
@@ -0,0 +1,135 @@
+#as:
+#objdump: -d
+#source: ls32ls16p.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+   0:	7320      	lwp!		r3, 16
+   2:	7320      	lwp!		r3, 16
+   4:	7460      	lwp!		r4, 48
+   6:	7460      	lwp!		r4, 48
+   8:	7790      	lwp!		r7, 72
+   a:	7790      	lwp!		r7, 72
+   c:	7840      	lwp!		r8, 32
+   e:	7840      	lwp!		r8, 32
+  10:	c0a28080 	lw		r5, \[r2, 128\]
+  14:	c0a28080 	lw		r5, \[r2, 128\]
+  18:	c0c68020 	lw		r6, \[r6, 32\]
+  1c:	c0c68020 	lw		r6, \[r6, 32\]
+  20:	7321      	lhp!		r3, 8
+  22:	7321      	lhp!		r3, 8
+  24:	7461      	lhp!		r4, 24
+  26:	7461      	lhp!		r4, 24
+  28:	7791      	lhp!		r7, 36
+  2a:	7791      	lhp!		r7, 36
+  2c:	7841      	lhp!		r8, 16
+  2e:	7841      	lhp!		r8, 16
+  30:	c4a28040 	lh		r5, \[r2, 64\]
+  34:	c4a28040 	lh		r5, \[r2, 64\]
+  38:	c4c68010 	lh		r6, \[r6, 16\]
+  3c:	c4c68010 	lh		r6, \[r6, 16\]
+  40:	7323      	lbup!		r3, 4
+  42:	7323      	lbup!		r3, 4
+  44:	7463      	lbup!		r4, 12
+  46:	7463      	lbup!		r4, 12
+  48:	7793      	lbup!		r7, 18
+  4a:	7793      	lbup!		r7, 18
+  4c:	7843      	lbup!		r8, 8
+  4e:	7843      	lbup!		r8, 8
+  50:	d8a28020 	lbu		r5, \[r2, 32\]
+  54:	d8a28020 	lbu		r5, \[r2, 32\]
+  58:	d8c68008 	lbu		r6, \[r6, 8\]
+  5c:	d8c68008 	lbu		r6, \[r6, 8\]
+  60:	7324      	swp!		r3, 16
+  62:	7324      	swp!		r3, 16
+  64:	7464      	swp!		r4, 48
+  66:	7464      	swp!		r4, 48
+  68:	7794      	swp!		r7, 72
+  6a:	7794      	swp!		r7, 72
+  6c:	7844      	swp!		r8, 32
+  6e:	7844      	swp!		r8, 32
+  70:	d0a28080 	sw		r5, \[r2, 128\]
+  74:	d0a28080 	sw		r5, \[r2, 128\]
+  78:	d0c68020 	sw		r6, \[r6, 32\]
+  7c:	d0c68020 	sw		r6, \[r6, 32\]
+  80:	7325      	shp!		r3, 8
+  82:	7325      	shp!		r3, 8
+  84:	7465      	shp!		r4, 24
+  86:	7465      	shp!		r4, 24
+  88:	7795      	shp!		r7, 36
+  8a:	7795      	shp!		r7, 36
+  8c:	7845      	shp!		r8, 16
+  8e:	7845      	shp!		r8, 16
+  90:	d4a28040 	sh		r5, \[r2, 64\]
+  94:	d4a28040 	sh		r5, \[r2, 64\]
+  98:	d4c68010 	sh		r6, \[r6, 16\]
+  9c:	d4c68010 	sh		r6, \[r6, 16\]
+  a0:	7327      	sbp!		r3, 4
+  a2:	7327      	sbp!		r3, 4
+  a4:	7467      	sbp!		r4, 12
+  a6:	7467      	sbp!		r4, 12
+  a8:	7797      	sbp!		r7, 18
+  aa:	7797      	sbp!		r7, 18
+  ac:	7847      	sbp!		r8, 8
+  ae:	7847      	sbp!		r8, 8
+  b0:	dca28020 	sb		r5, \[r2, 32\]
+  b4:	dca28020 	sb		r5, \[r2, 32\]
+  b8:	dcc68008 	sb		r6, \[r6, 8\]
+  bc:	dcc68008 	sb		r6, \[r6, 8\]
+  c0:	c002800c 	lw		r0, \[r2, 12\]
+  c4:	c00580ff 	lw		r0, \[r5, 255\]
+  c8:	c1e28000 	lw		r15, \[r2, 0\]
+  cc:	c1e480ff 	lw		r15, \[r4, 255\]
+  d0:	7410      	lwp!		r4, 8
+  d2:	7410      	lwp!		r4, 8
+  d4:	7710      	lwp!		r7, 8
+  d6:	7740      	lwp!		r7, 32
+	...
+  e0:	c402800c 	lh		r0, \[r2, 12\]
+  e4:	c40580ff 	lh		r0, \[r5, 255\]
+  e8:	c5e28000 	lh		r15, \[r2, 0\]
+  ec:	c5e480ff 	lh		r15, \[r4, 255\]
+  f0:	7421      	lhp!		r4, 8
+  f2:	7421      	lhp!		r4, 8
+  f4:	7721      	lhp!		r7, 8
+  f6:	7741      	lhp!		r7, 16
+	...
+ 100:	d802800c 	lbu		r0, \[r2, 12\]
+ 104:	d80580ff 	lbu		r0, \[r5, 255\]
+ 108:	d9e28000 	lbu		r15, \[r2, 0\]
+ 10c:	d9e480ff 	lbu		r15, \[r4, 255\]
+ 110:	7443      	lbup!		r4, 8
+ 112:	7443      	lbup!		r4, 8
+ 114:	7743      	lbup!		r7, 8
+ 116:	7743      	lbup!		r7, 8
+	...
+ 120:	d002800c 	sw		r0, \[r2, 12\]
+ 124:	d00580ff 	sw		r0, \[r5, 255\]
+ 128:	d1e28000 	sw		r15, \[r2, 0\]
+ 12c:	d1e480ff 	sw		r15, \[r4, 255\]
+ 130:	7414      	swp!		r4, 8
+ 132:	7414      	swp!		r4, 8
+ 134:	7714      	swp!		r7, 8
+ 136:	7744      	swp!		r7, 32
+	...
+ 140:	d402800c 	sh		r0, \[r2, 12\]
+ 144:	d40580ff 	sh		r0, \[r5, 255\]
+ 148:	d5e28000 	sh		r15, \[r2, 0\]
+ 14c:	d5e480ff 	sh		r15, \[r4, 255\]
+ 150:	7425      	shp!		r4, 8
+ 152:	7425      	shp!		r4, 8
+ 154:	7725      	shp!		r7, 8
+ 156:	7745      	shp!		r7, 16
+	...
+ 160:	dc02800c 	sb		r0, \[r2, 12\]
+ 164:	dc0580ff 	sb		r0, \[r5, 255\]
+ 168:	dde28000 	sb		r15, \[r2, 0\]
+ 16c:	dde480ff 	sb		r15, \[r4, 255\]
+ 170:	7447      	sbp!		r4, 8
+ 172:	7447      	sbp!		r4, 8
+ 174:	7747      	sbp!		r7, 8
+ 176:	7747      	sbp!		r7, 8
+#pass
diff --git a/gas/testsuite/gas/score/ls32ls16p.s b/gas/testsuite/gas/score/ls32ls16p.s
new file mode 100644
index 0000000..72aa612
--- /dev/null
+++ b/gas/testsuite/gas/score/ls32ls16p.s
@@ -0,0 +1,68 @@
+/*
+ * test relax
+ * lw <-> lwp!  : rs = r2, offset & 0x3 == 0, offset >> 2 : 5b
+ * lh <-> lhp!  : rs = r2, offset & 0x1 == 0, offset >> 1 : 5b
+ * lbu <-> lbu! : rs = r2, offset != 0, offset : 5b
+ * sw <-> swp!  : rs = r2, offset & 0x3 == 0, offset >> 2 : 5b
+ * sh <-> shp!  : rs = r2, offset & 0x1 == 0, offset >> 1 : 5b
+ * sb <-> sb!   : rs = r2, offset != 0, offset : 5b
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16, shift
+.align 4
+
+  \insn32 r3, [r2, 0x4 << \shift]     #32b -> 16b
+  \insn16 r3, 0x4 << \shift
+
+  \insn32 r4, [r2, 0xC << \shift]      #32b -> 16b
+  \insn16 r4, 0xC << \shift
+
+  \insn32 r7, [r2, 0x12 << \shift]     #32b -> 16b
+  \insn32 r7, [r2, 0x12 << \shift]     #32b -> 16b
+
+  \insn16 r8, 0x8 << \shift
+  \insn32 r8, [r2, 0x8 << \shift]      #32b -> 16b
+
+  \insn32 r5, [r2, 0x20 << \shift]     #No transform
+  \insn32 r5, [r2, 0x20 << \shift]     #No transform
+
+  \insn32 r6, [r6, 0x8 << \shift]      #No transform
+  \insn32 r6, [r6, 0x8 << \shift]      #No transform
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16, shift
+.align 4
+
+  \insn16 r0, 0xC                      #16b -> 32b
+  \insn32 r0, [r5, 0xFF]       
+
+  \insn16 r15, 0x0                     #16b -> 32b
+  \insn32 r15, [r4, 0xFF]       
+ 
+  \insn16 r4, 0x8                      #No transform
+  \insn16 r4, 0x8                      #No transform
+
+  \insn16 r7, 0x8                      #No transform
+  \insn32 r7, [r2, 0x8 << \shift]
+
+.endm
+
+  tran3216 "lw", "lwp!", 2
+  tran3216 "lh", "lhp!", 1
+  tran3216 "lbu", "lbup!", 0
+  tran3216 "sw", "swp!", 2
+  tran3216 "sh", "shp!", 1
+  tran3216 "sb", "sbp!", 0
+
+  tran1632 "lw", "lwp!", 2
+  tran1632 "lh", "lhp!", 1
+  tran1632 "lbu", "lbup!", 0
+  tran1632 "sw", "swp!", 2
+  tran1632 "sh", "shp!", 1
+  tran1632 "sb", "sbp!", 0
+
diff --git a/gas/testsuite/gas/score/move.d b/gas/testsuite/gas/score/move.d
new file mode 100644
index 0000000..0bec506
--- /dev/null
+++ b/gas/testsuite/gas/score/move.d
@@ -0,0 +1,60 @@
+#as:
+#objdump: -d
+#source: move.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+   0:	00f3      	mv!		r0, r15
+   2:	00f3      	mv!		r0, r15
+   4:	0ff3      	mv!		r15, r15
+   6:	0ff3      	mv!		r15, r15
+   8:	0353      	mv!		r3, r5
+   a:	0353      	mv!		r3, r5
+   c:	0673      	mv!		r6, r7
+   e:	0673      	mv!		r6, r7
+  10:	810abc56 	mv		r8, r10
+  14:	82b7bc56 	mv		r21, r23
+	...
+  20:	800fbc56 	mv		r0, r15
+  24:	82fbbc56 	mv		r23, r27
+  28:	0283      	mv!		r2, r8
+  2a:	0283      	mv!		r2, r8
+  2c:	0283      	mv!		r2, r8
+  2e:	0283      	mv!		r2, r8
+  30:	0f02      	mhfl!		r31, r0
+  32:	0f02      	mhfl!		r31, r0
+  34:	00f2      	mhfl!		r16, r15
+  36:	00f2      	mhfl!		r16, r15
+  38:	0752      	mhfl!		r23, r5
+  3a:	0752      	mhfl!		r23, r5
+  3c:	0a72      	mhfl!		r26, r7
+  3e:	0a72      	mhfl!		r26, r7
+  40:	838abc56 	mv		gp, r10
+  44:	82b7bc56 	mv		r21, r23
+	...
+  50:	83e0bc56 	mv		r31, r0
+  54:	82fbbc56 	mv		r23, r27
+  58:	0682      	mhfl!		r22, r8
+  5a:	0682      	mhfl!		r22, r8
+  5c:	07f2      	mhfl!		r23, r15
+  5e:	07f2      	mhfl!		r23, r15
+  60:	00f1      	mlfh!		r0, r31
+  62:	00f1      	mlfh!		r0, r31
+  64:	0f01      	mlfh!		r15, r16
+  66:	0f01      	mlfh!		r15, r16
+  68:	0571      	mlfh!		r5, r23
+  6a:	0571      	mlfh!		r5, r23
+  6c:	07a1      	mlfh!		r7, r26
+  6e:	07a1      	mlfh!		r7, r26
+  70:	815cbc56 	mv		r10, gp
+  74:	82b7bc56 	mv		r21, r23
+	...
+  80:	801fbc56 	mv		r0, r31
+  84:	82fbbc56 	mv		r23, r27
+  88:	0861      	mlfh!		r8, r22
+  8a:	0861      	mlfh!		r8, r22
+  8c:	0f71      	mlfh!		r15, r23
+  8e:	0f71      	mlfh!		r15, r23
diff --git a/gas/testsuite/gas/score/move.s b/gas/testsuite/gas/score/move.s
new file mode 100644
index 0000000..3a4623e
--- /dev/null
+++ b/gas/testsuite/gas/score/move.s
@@ -0,0 +1,98 @@
+/*
+ * test relax
+ * mv <-> mv!   : for mv! : register number must be in 0-15
+ * mv <-> mhfl! : for mhfl! : rD must be in 16-31, rS must be in 0-15
+ * mv <-> mlfh! : for mhfl! : rD must be in 0-15, rS must be in 16-31
+
+ * Author: ligang
+ */
+
+/* This block test mv -> mv! */
+.align 4
+
+  mv  r0, r15      #32b -> 16b
+  mv! r0, r15
+
+  mv  r15, r15     #32b -> 16b
+  mv! r15, r15
+
+  mv  r3, r5       #32b -> 16b
+  mv  r3, r5       #32b -> 16b
+
+  mv! r6, r7
+  mv  r6, r7       #32b -> 16b
+
+  mv  r8, r10      #No transform
+  mv  r21, r23
+
+/* This block test mv! -> mv */
+.align 4
+
+  mv! r0, r15      #16b -> 32b      
+  mv  r23, r27
+
+  mv! r2, r8       #No transform      
+  mv! r2, r8       #No transform
+
+  mv! r2, r8       #No transform      
+  mv  r2, r8       
+
+/* This block test mv -> mhfl! */
+.align 4
+
+  mv    r31, r0        #32b -> 16b
+  mhfl! r31, r0
+
+  mv    r16, r15       #32b -> 16b
+  mv!   r16, r15
+
+  mv    r23, r5        #32b -> 16b
+  mv    r23, r5        #32b -> 16b
+
+  mhfl! r26, r7
+  mv    r26, r7        #32b -> 16b
+
+  mv    r28, r10       #No transform
+  mv    r21, r23
+
+/* This block test mhfl! -> mv */
+.align 4
+
+  mhfl! r31, r0       #16b -> 32b      
+  mv    r23, r27
+
+  mhfl! r22, r8       #No transform      
+  mhfl! r22, r8       #No transform
+
+  mhfl! r23, r15      #No transform      
+  mv    r23, r15       
+
+/* This block test mv -> mlfh! */
+.align 4
+
+  mv    r0, r31        #32b -> 16b
+  mlfh! r0, r31
+
+  mv    r15, r16       #32b -> 16b
+  mv!   r15, r16
+
+  mv    r5, r23        #32b -> 16b
+  mv    r5, r23        #32b -> 16b
+
+  mlfh! r7, r26
+  mv    r7, r26        #32b -> 16b
+
+  mv    r10, r28       #No transform
+  mv    r21, r23
+
+/* This block test mhfl! -> mv */
+.align 4
+
+  mlfh! r0, r31       #16b -> 32b      
+  mv    r23, r27
+
+  mlfh! r8, r22       #No transform      
+  mlfh! r8, r22       #No transform
+
+  mlfh! r15, r23      #No transform      
+  mv    r15, r23       
diff --git a/gas/testsuite/gas/score/nop.d b/gas/testsuite/gas/score/nop.d
new file mode 100644
index 0000000..83e98b7
--- /dev/null
+++ b/gas/testsuite/gas/score/nop.d
@@ -0,0 +1,15 @@
+#as:
+#objdump: -d
+#source: nop.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+	...
+   c:	80008000 	nop
+  10:	8254e010 	add		r18, r20, r24
+	...
+  28:	80008000 	nop
+  2c:	8254e026 	xor		r18, r20, r24
diff --git a/gas/testsuite/gas/score/nop.s b/gas/testsuite/gas/score/nop.s
new file mode 100644
index 0000000..2695552
--- /dev/null
+++ b/gas/testsuite/gas/score/nop.s
@@ -0,0 +1,38 @@
+/*
+ * test relax
+ * nop <-> nop!
+	
+ * Author: ligang
+ */
+
+.macro tran insn32, insn16
+/* This block transform 32b instruction to 16b. */
+.align 4
+	
+  \insn32               #32b -> 16b
+  \insn16
+
+  \insn32               #32b -> 16b
+  \insn32               #32b -> 16b
+
+  \insn16      
+  \insn32               #32b -> 16b
+
+  \insn32               #No transform
+  add r18, r20, r24
+
+/* This block transform 16b instruction to 32b. */
+.align 4
+	
+  \insn16               #No transform
+  \insn32
+
+  \insn16               #No transform
+  \insn16
+
+  \insn16               #16b -> 32b
+  xor r18, r20, r24
+	
+.endm
+
+  tran "nop", "nop!"
diff --git a/gas/testsuite/gas/score/postlw.d b/gas/testsuite/gas/score/postlw.d
new file mode 100644
index 0000000..25867f4
--- /dev/null
+++ b/gas/testsuite/gas/score/postlw.d
@@ -0,0 +1,32 @@
+#as:
+#objdump: -d
+#source: postlw.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	27fa      	pop!		r23, \[r7\]
+   2:	27fa      	pop!		r23, \[r7\]
+   4:	202a      	pop!		r0, \[r2\]
+   6:	202a      	pop!		r0, \[r2\]
+   8:	2f0a      	pop!		r15, \[r0\]
+   a:	2f0a      	pop!		r15, \[r0\]
+   c:	2f7a      	pop!		r15, \[r7\]
+   e:	2f7a      	pop!		r15, \[r7\]
+  10:	29ba      	pop!		r25, \[r3\]
+  12:	29ba      	pop!		r25, \[r3\]
+  14:	9f0d8020 	lw		r24, \[r13\]\+, 4
+  18:	9ee78028 	lw		r23, \[r7\]\+, 5
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	9c078020 	lw		r0, \[r7\]\+, 4
+  24:	9f2d8020 	lw		r25, \[r13\]\+, 4
+  28:	9f208020 	lw		r25, \[r0\]\+, 4
+  2c:	9e578020 	lw		r18, \[r23\]\+, 4
+  30:	263a      	pop!		r6, \[r3\]
+  32:	263a      	pop!		r6, \[r3\]
+  34:	237a      	pop!		r3, \[r7\]
+  36:	237a      	pop!		r3, \[r7\]
+#pass
diff --git a/gas/testsuite/gas/score/postlw.s b/gas/testsuite/gas/score/postlw.s
new file mode 100644
index 0000000..499ea94
--- /dev/null
+++ b/gas/testsuite/gas/score/postlw.s
@@ -0,0 +1,54 @@
+/*
+ * test relax
+ * post lw <-> pop! : offset == 4
+ * syntax:	
+   lw rD, [rA]+, simm12 : rD and rA can be 0-31
+   pop! rD, [rAg0] : rAg0 must be in 0-7, rD can be 0-31
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r23, [r7]+, 4    #32b -> 16b
+  \insn16 r23, [r7]
+
+  \insn32 r0, [r2]+, 4     #32b -> 16b
+  \insn16 r0, [r2]
+
+  \insn32 r15, [r0]+, 4    #32b -> 16b
+  \insn16 r15, [r0]
+
+  \insn16 r15, [r7]
+  \insn32 r15, [r7]+, 4    #32b -> 16b
+	
+  \insn32 r25, [r3]+, 4    #32b -> 16b
+  \insn32 r25, [r3]+, 4    #32b -> 16b
+
+  \insn32 r24, [r13]+, 4   #No transform
+  \insn32 r23, [r7]+, 5    #No transform
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, [r7]         #16b -> 32b
+  \insn32 r25, [r13]+, 4
+
+  \insn16 r25, [r0]        #16b -> 32b
+  \insn32 r18, [r23]+, 4
+
+  \insn16 r6, [r3]         #No transform
+  \insn16 r6, [r3]         #No transform
+
+  \insn16 r3, [r7]         #No transform
+  \insn32 r3, [r7]+, 4
+
+.endm
+
+  tran3216 "lw", "pop!"
+  tran1632 "lw", "pop!"
diff --git a/gas/testsuite/gas/score/presw.d b/gas/testsuite/gas/score/presw.d
new file mode 100644
index 0000000..cc4092f
--- /dev/null
+++ b/gas/testsuite/gas/score/presw.d
@@ -0,0 +1,32 @@
+#as:
+#objdump: -d
+#source: presw.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <.text>:
+   0:	202e      	push!		r0, \[r2\]
+   2:	202e      	push!		r0, \[r2\]
+   4:	27fe      	push!		r23, \[r7\]
+   6:	27fe      	push!		r23, \[r7\]
+   8:	2f0e      	push!		r15, \[r0\]
+   a:	2f0e      	push!		r15, \[r0\]
+   c:	2f7e      	push!		r15, \[r7\]
+   e:	2f7e      	push!		r15, \[r7\]
+  10:	29be      	push!		r25, \[r3\]
+  12:	29be      	push!		r25, \[r3\]
+  14:	8f0dffe4 	sw		r24, \[r13, -4\]\+
+  18:	8ee7ffdc 	sw		r23, \[r7, -5\]\+
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	8c07ffe4 	sw		r0, \[r7, -4\]\+
+  24:	8f2dffe4 	sw		r25, \[r13, -4\]\+
+  28:	8f20ffe4 	sw		r25, \[r0, -4\]\+
+  2c:	8e57ffe4 	sw		r18, \[r23, -4\]\+
+  30:	263e      	push!		r6, \[r3\]
+  32:	263e      	push!		r6, \[r3\]
+  34:	237e      	push!		r3, \[r7\]
+  36:	237e      	push!		r3, \[r7\]
+#pass
diff --git a/gas/testsuite/gas/score/presw.s b/gas/testsuite/gas/score/presw.s
new file mode 100644
index 0000000..bcc11d1
--- /dev/null
+++ b/gas/testsuite/gas/score/presw.s
@@ -0,0 +1,54 @@
+/*
+ * test relax
+ * pre sw <-> push! : offset == -4
+ * syntax:	
+   sw rD, [rA, simm12]+ : rD and rA can be 0-31
+   push! rD, [rAg0] : rAg0 must be in 0-7, rD can be 0-31
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0, [r2, -4]+     #32b -> 16b
+  \insn16 r0, [r2]
+
+  \insn32 r23, [r7, -4]+    #32b -> 16b
+  \insn16 r23, [r7]
+
+  \insn32 r15, [r0, -4]+    #32b -> 16b
+  \insn16 r15, [r0]
+
+  \insn16 r15, [r7]
+  \insn32 r15, [r7, -4]+    #32b -> 16b
+	
+  \insn32 r25, [r3, -4]+    #32b -> 16b
+  \insn32 r25, [r3, -4]+    #32b -> 16b
+
+  \insn32 r24, [r13, -4]+   #No transform
+  \insn32 r23, [r7, -5]+    #No transform
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, [r7]         #16b -> 32b
+  \insn32 r25, [r13, -4]+
+
+  \insn16 r25, [r0]        #16b -> 32b
+  \insn32 r18, [r23, -4]+
+
+  \insn16 r6, [r3]         #No transform
+  \insn16 r6, [r3]         #No transform
+
+  \insn16 r3, [r7]         #No transform
+  \insn32 r3, [r7, -4]+
+
+.endm
+
+  tran3216 "sw", "push!"
+  tran1632 "sw", "push!"
diff --git a/gas/testsuite/gas/score/rD_rA.d b/gas/testsuite/gas/score/rD_rA.d
new file mode 100644
index 0000000..3a31869
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA.d
@@ -0,0 +1,90 @@
+#as:
+#objdump: -d
+#source: rD_rA.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	2076      	not!		r0, r7
+   2:	2076      	not!		r0, r7
+   4:	2f46      	not!		r15, r4
+   6:	2f46      	not!		r15, r4
+   8:	2ff6      	not!		r15, r15
+   a:	2ff6      	not!		r15, r15
+   c:	2f36      	not!		r15, r3
+   e:	2f36      	not!		r15, r3
+  10:	2826      	not!		r8, r2
+  12:	2826      	not!		r8, r2
+  14:	81e58025 	not.c		r15, r5
+  18:	83578025 	not.c		r26, r23
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	2072      	neg!		r0, r7
+  22:	2072      	neg!		r0, r7
+  24:	2f42      	neg!		r15, r4
+  26:	2f42      	neg!		r15, r4
+  28:	2ff2      	neg!		r15, r15
+  2a:	2ff2      	neg!		r15, r15
+  2c:	2f32      	neg!		r15, r3
+  2e:	2f32      	neg!		r15, r3
+  30:	2822      	neg!		r8, r2
+  32:	2822      	neg!		r8, r2
+  34:	81e0941f 	neg.c		r15, r5
+  38:	8340dc1f 	neg.c		r26, r23
+  3c:	0000      	nop!
+  3e:	0000      	nop!
+  40:	2073      	cmp!		r0, r7
+  42:	2073      	cmp!		r0, r7
+  44:	2f43      	cmp!		r15, r4
+  46:	2f43      	cmp!		r15, r4
+  48:	2ff3      	cmp!		r15, r15
+  4a:	2ff3      	cmp!		r15, r15
+  4c:	2f33      	cmp!		r15, r3
+  4e:	2f33      	cmp!		r15, r3
+  50:	2823      	cmp!		r8, r2
+  52:	2823      	cmp!		r8, r2
+  54:	806f9419 	cmp.c		r15, r5
+  58:	807adc19 	cmp.c		r26, r23
+  5c:	0000      	nop!
+  5e:	0000      	nop!
+  60:	80008825 	not.c		r0, r0
+  64:	82958025 	not.c		r20, r21
+  68:	81ef9025 	not.c		r15, r15
+  6c:	83358025 	not.c		r25, r21
+  70:	81ef8c25 	not.c		r15, r15
+  74:	83368025 	not.c		r25, r22
+  78:	2836      	not!		r8, r3
+  7a:	2836      	not!		r8, r3
+  7c:	2626      	not!		r6, r2
+  7e:	2626      	not!		r6, r2
+  80:	2746      	not!		r7, r4
+  82:	2746      	not!		r7, r4
+	...
+  90:	8000881f 	neg.c		r0, r2
+  94:	8280d41f 	neg.c		r20, r21
+  98:	81ef901f 	neg.c		r15, r4
+  9c:	8320d41f 	neg.c		r25, r21
+  a0:	81ef8c1f 	neg.c		r15, r3
+  a4:	8320d81f 	neg.c		r25, r22
+  a8:	2832      	neg!		r8, r3
+  aa:	2832      	neg!		r8, r3
+  ac:	2622      	neg!		r6, r2
+  ae:	2622      	neg!		r6, r2
+  b0:	2742      	neg!		r7, r4
+  b2:	2742      	neg!		r7, r4
+	...
+  c0:	80608819 	cmp.c		r0, r2
+  c4:	8074d419 	cmp.c		r20, r21
+  c8:	806f9019 	cmp.c		r15, r4
+  cc:	8079d419 	cmp.c		r25, r21
+  d0:	806f8c19 	cmp.c		r15, r3
+  d4:	8079d819 	cmp.c		r25, r22
+  d8:	2833      	cmp!		r8, r3
+  da:	2833      	cmp!		r8, r3
+  dc:	2623      	cmp!		r6, r2
+  de:	2623      	cmp!		r6, r2
+  e0:	2743      	cmp!		r7, r4
+  e2:	2743      	cmp!		r7, r4
+#pass
diff --git a/gas/testsuite/gas/score/rD_rA.s b/gas/testsuite/gas/score/rD_rA.s
new file mode 100644
index 0000000..0f1c0d4
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA.s
@@ -0,0 +1,66 @@
+/*
+ * test relax
+ * not.c <-> not! : register number must be in 0-15
+ * neg.c <-> neg! : register number must be in 0-15
+ * cmp.c <-> cmp! : register number must be in 0-15
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0, r7          #32b -> 16b
+  \insn16 r0, r7
+
+  \insn32 r15, r4         #32b -> 16b
+  \insn16 r15, r4
+
+  \insn32 r15, r15        #32b -> 16b
+  \insn16 r15, r15
+
+  \insn16 r15, r3
+  \insn32 r15, r3         #32b -> 16b
+
+  \insn32 r8,  r2         #32b -> 16b
+  \insn32 r8,  r2         #32b -> 16b
+	
+  \insn32 r15, r5         #No transform
+  \insn32 r26, r23
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+	
+  \insn16 r0, r2         #16b -> 32b
+  \insn32 r20, r21
+	
+  \insn16 r15, r4        #16b -> 32b
+  \insn32 r25, r21
+	
+  \insn16 r15, r3        #16b -> 32b
+  \insn32 r25, r22
+
+  \insn16 r8, r3         #No transform
+  \insn16 r8, r3         #No transform
+	
+  \insn16 r6, r2         #No transform
+  \insn32 r6, r2         #32b -> 16b
+	
+  \insn32 r7, r4         #32b -> 16b
+  \insn16 r7, r4         #No transform
+	
+.endm
+		
+.text
+	
+  tran3216 "not.c", "not!"
+  tran3216 "neg.c", "neg!"
+  tran3216 "cmp.c", "cmp!"
+
+  tran1632 "not.c", "not!"
+  tran1632 "neg.c", "neg!"
+  tran1632 "cmp.c", "cmp!"
diff --git a/gas/testsuite/gas/score/rD_rA_BN.d b/gas/testsuite/gas/score/rD_rA_BN.d
new file mode 100644
index 0000000..505e458
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA_BN.d
@@ -0,0 +1,144 @@
+#as:
+#objdump: -d
+#source: rD_rA_BN.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	6014      	bitclr!		r0, 0x2
+   2:	6014      	bitclr!		r0, 0x2
+   4:	6f24      	bitclr!		r15, 0x4
+   6:	6f24      	bitclr!		r15, 0x4
+   8:	6f0c      	bitclr!		r15, 0x1
+   a:	6f0c      	bitclr!		r15, 0x1
+   c:	6f1c      	bitclr!		r15, 0x3
+   e:	6f1c      	bitclr!		r15, 0x3
+  10:	681c      	bitclr!		r8, 0x3
+  12:	681c      	bitclr!		r8, 0x3
+  14:	81ef8429 	bitclr.c	r15, r15, 0x1
+  18:	83579029 	bitclr.c	r26, r23, 0x4
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	6015      	bitset!		r0, 0x2
+  22:	6015      	bitset!		r0, 0x2
+  24:	6f25      	bitset!		r15, 0x4
+  26:	6f25      	bitset!		r15, 0x4
+  28:	6f0d      	bitset!		r15, 0x1
+  2a:	6f0d      	bitset!		r15, 0x1
+  2c:	6f1d      	bitset!		r15, 0x3
+  2e:	6f1d      	bitset!		r15, 0x3
+  30:	681d      	bitset!		r8, 0x3
+  32:	681d      	bitset!		r8, 0x3
+  34:	81ef842b 	bitset.c	r15, r15, 0x1
+  38:	8357902b 	bitset.c	r26, r23, 0x4
+  3c:	0000      	nop!
+  3e:	0000      	nop!
+  40:	6017      	bittgl!		r0, 0x2
+  42:	6017      	bittgl!		r0, 0x2
+  44:	6f27      	bittgl!		r15, 0x4
+  46:	6f27      	bittgl!		r15, 0x4
+  48:	6f0f      	bittgl!		r15, 0x1
+  4a:	6f0f      	bittgl!		r15, 0x1
+  4c:	6f1f      	bittgl!		r15, 0x3
+  4e:	6f1f      	bittgl!		r15, 0x3
+  50:	681f      	bittgl!		r8, 0x3
+  52:	681f      	bittgl!		r8, 0x3
+  54:	81ef842f 	bittgl.c	r15, r15, 0x1
+  58:	8357902f 	bittgl.c	r26, r23, 0x4
+  5c:	0000      	nop!
+  5e:	0000      	nop!
+  60:	6011      	slli!		r0, 2
+  62:	6011      	slli!		r0, 2
+  64:	6f21      	slli!		r15, 4
+  66:	6f21      	slli!		r15, 4
+  68:	6f09      	slli!		r15, 1
+  6a:	6f09      	slli!		r15, 1
+  6c:	6f19      	slli!		r15, 3
+  6e:	6f19      	slli!		r15, 3
+  70:	6819      	slli!		r8, 3
+  72:	6819      	slli!		r8, 3
+  74:	81ef8471 	slli.c		r15, r15, 1
+  78:	83579071 	slli.c		r26, r23, 4
+  7c:	0000      	nop!
+  7e:	0000      	nop!
+  80:	6013      	srli!		r0, 2
+  82:	6013      	srli!		r0, 2
+  84:	6f23      	srli!		r15, 4
+  86:	6f23      	srli!		r15, 4
+  88:	6f0b      	srli!		r15, 1
+  8a:	6f0b      	srli!		r15, 1
+  8c:	6f1b      	srli!		r15, 3
+  8e:	6f1b      	srli!		r15, 3
+  90:	681b      	srli!		r8, 3
+  92:	681b      	srli!		r8, 3
+  94:	81ef8475 	srli.c		r15, r15, 1
+  98:	83579075 	srli.c		r26, r23, 4
+  9c:	0000      	nop!
+  9e:	0000      	nop!
+  a0:	80008829 	bitclr.c	r0, r0, 0x2
+  a4:	82958829 	bitclr.c	r20, r21, 0x2
+  a8:	81ef9029 	bitclr.c	r15, r15, 0x4
+  ac:	83359029 	bitclr.c	r25, r21, 0x4
+  b0:	81ef8429 	bitclr.c	r15, r15, 0x1
+  b4:	83368429 	bitclr.c	r25, r22, 0x1
+  b8:	681c      	bitclr!		r8, 0x3
+  ba:	681c      	bitclr!		r8, 0x3
+  bc:	6624      	bitclr!		r6, 0x4
+  be:	6624      	bitclr!		r6, 0x4
+  c0:	6914      	bitclr!		r9, 0x2
+  c2:	6914      	bitclr!		r9, 0x2
+	...
+  d0:	8000882b 	bitset.c	r0, r0, 0x2
+  d4:	8295882b 	bitset.c	r20, r21, 0x2
+  d8:	81ef902b 	bitset.c	r15, r15, 0x4
+  dc:	8335902b 	bitset.c	r25, r21, 0x4
+  e0:	81ef842b 	bitset.c	r15, r15, 0x1
+  e4:	8336842b 	bitset.c	r25, r22, 0x1
+  e8:	681d      	bitset!		r8, 0x3
+  ea:	681d      	bitset!		r8, 0x3
+  ec:	6625      	bitset!		r6, 0x4
+  ee:	6625      	bitset!		r6, 0x4
+  f0:	6915      	bitset!		r9, 0x2
+  f2:	6915      	bitset!		r9, 0x2
+	...
+ 100:	8000882f 	bittgl.c	r0, r0, 0x2
+ 104:	8295882f 	bittgl.c	r20, r21, 0x2
+ 108:	81ef902f 	bittgl.c	r15, r15, 0x4
+ 10c:	8335902f 	bittgl.c	r25, r21, 0x4
+ 110:	81ef842f 	bittgl.c	r15, r15, 0x1
+ 114:	8336842f 	bittgl.c	r25, r22, 0x1
+ 118:	681f      	bittgl!		r8, 0x3
+ 11a:	681f      	bittgl!		r8, 0x3
+ 11c:	6627      	bittgl!		r6, 0x4
+ 11e:	6627      	bittgl!		r6, 0x4
+ 120:	6917      	bittgl!		r9, 0x2
+ 122:	6917      	bittgl!		r9, 0x2
+	...
+ 130:	80008871 	slli.c		r0, r0, 2
+ 134:	82958871 	slli.c		r20, r21, 2
+ 138:	81ef9071 	slli.c		r15, r15, 4
+ 13c:	83359071 	slli.c		r25, r21, 4
+ 140:	81ef8471 	slli.c		r15, r15, 1
+ 144:	83368471 	slli.c		r25, r22, 1
+ 148:	6819      	slli!		r8, 3
+ 14a:	6819      	slli!		r8, 3
+ 14c:	6621      	slli!		r6, 4
+ 14e:	6621      	slli!		r6, 4
+ 150:	6911      	slli!		r9, 2
+ 152:	6911      	slli!		r9, 2
+	...
+ 160:	80008875 	srli.c		r0, r0, 2
+ 164:	82958875 	srli.c		r20, r21, 2
+ 168:	81ef9075 	srli.c		r15, r15, 4
+ 16c:	83359075 	srli.c		r25, r21, 4
+ 170:	81ef8475 	srli.c		r15, r15, 1
+ 174:	83368475 	srli.c		r25, r22, 1
+ 178:	681b      	srli!		r8, 3
+ 17a:	681b      	srli!		r8, 3
+ 17c:	6623      	srli!		r6, 4
+ 17e:	6623      	srli!		r6, 4
+ 180:	6913      	srli!		r9, 2
+ 182:	6913      	srli!		r9, 2
+#pass
diff --git a/gas/testsuite/gas/score/rD_rA_BN.s b/gas/testsuite/gas/score/rD_rA_BN.s
new file mode 100644
index 0000000..224438f
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA_BN.s
@@ -0,0 +1,73 @@
+/*
+ * test relax
+ * bitclr.c <-> bitclr! : register number must be in 0-15
+ * bitset.c <-> bitset! : register number must be in 0-15
+ * bittgl.c <-> bittgl! : register number must be in 0-15
+ * slli.c <-> slli!     : register number must be in 0-15
+ * srli.c <-> srli!     : register number must be in 0-15
+
+ * Author: ligang
+ */
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0, r0, 2          #32b -> 16b
+  \insn16 r0, 2
+
+  \insn32 r15, r15, 4        #32b -> 16b
+  \insn16 r15, 4
+
+  \insn32 r15, r15, 1        #32b -> 16b
+  \insn16 r15, 1
+
+  \insn16 r15, 3
+  \insn32 r15, r15, 3        #32b -> 16b
+
+  \insn32 r8, r8, 3          #32b -> 16b
+  \insn32 r8, r8, 3          #32b -> 16b
+	
+  \insn32 r15, r15, 1        #No transform
+  \insn32 r26, r23, 4
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, 2         #16b -> 32b
+  \insn32 r20, r21, 2
+	
+  \insn16 r15, 4        #16b -> 32b
+  \insn32 r25, r21, 4
+
+  \insn16 r15, 1        #16b -> 32b
+  \insn32 r25, r22, 1
+
+  \insn16 r8, 3         #No transform
+  \insn16 r8, 3         #No transform
+	
+  \insn16 r6, 4         #No transform
+  \insn32 r6, r6, 4     #32b -> 16b
+
+  \insn32 r9, r9, 2     #32b -> 16b
+  \insn16 r9, 2         #No transform  
+	
+.endm
+		
+.text
+
+  tran3216 "bitclr.c", "bitclr!"
+  tran3216 "bitset.c", "bitset!"
+  tran3216 "bittgl.c", "bittgl!"
+  tran3216 "slli.c", "slli!"
+  tran3216 "srli.c", "srli!"
+
+  tran1632 "bitclr.c", "bitclr!"
+  tran1632 "bitset.c", "bitset!"
+  tran1632 "bittgl.c", "bittgl!"
+  tran1632 "slli.c", "slli!"
+  tran1632 "srli.c", "srli!"
+	
diff --git a/gas/testsuite/gas/score/rD_rA_rB.d b/gas/testsuite/gas/score/rD_rA_rB.d
new file mode 100644
index 0000000..d897ebc
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA_rB.d
@@ -0,0 +1,252 @@
+#as:
+#objdump: -d
+#source: rD_rA_rB.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	2020      	add!		r0, r2
+   2:	2020      	add!		r0, r2
+   4:	2540      	add!		r5, r4
+   6:	2540      	add!		r5, r4
+   8:	2f40      	add!		r15, r4
+   a:	2f40      	add!		r15, r4
+   c:	2f30      	add!		r15, r3
+   e:	2f30      	add!		r15, r3
+  10:	2830      	add!		r8, r3
+  12:	2830      	add!		r8, r3
+  14:	81ef9811 	add.c		r15, r15, r6
+  18:	83579011 	add.c		r26, r23, r4
+  1c:	0000      	nop!
+  1e:	0000      	nop!
+  20:	0029      	addc!		r0, r2
+  22:	0029      	addc!		r0, r2
+  24:	0549      	addc!		r5, r4
+  26:	0549      	addc!		r5, r4
+  28:	0f49      	addc!		r15, r4
+  2a:	0f49      	addc!		r15, r4
+  2c:	0f39      	addc!		r15, r3
+  2e:	0f39      	addc!		r15, r3
+  30:	0839      	addc!		r8, r3
+  32:	0839      	addc!		r8, r3
+  34:	81ef9813 	addc.c		r15, r15, r6
+  38:	83579013 	addc.c		r26, r23, r4
+  3c:	0000      	nop!
+  3e:	0000      	nop!
+  40:	2021      	sub!		r0, r2
+  42:	2021      	sub!		r0, r2
+  44:	2541      	sub!		r5, r4
+  46:	2541      	sub!		r5, r4
+  48:	2f41      	sub!		r15, r4
+  4a:	2f41      	sub!		r15, r4
+  4c:	2f31      	sub!		r15, r3
+  4e:	2f31      	sub!		r15, r3
+  50:	2831      	sub!		r8, r3
+  52:	2831      	sub!		r8, r3
+  54:	81ef9815 	sub.c		r15, r15, r6
+  58:	83579015 	sub.c		r26, r23, r4
+  5c:	0000      	nop!
+  5e:	0000      	nop!
+  60:	2024      	and!		r0, r2
+  62:	2024      	and!		r0, r2
+  64:	2544      	and!		r5, r4
+  66:	2544      	and!		r5, r4
+  68:	2f44      	and!		r15, r4
+  6a:	2f44      	and!		r15, r4
+  6c:	2f34      	and!		r15, r3
+  6e:	2f34      	and!		r15, r3
+  70:	2834      	and!		r8, r3
+  72:	2834      	and!		r8, r3
+  74:	81ef9821 	and.c		r15, r15, r6
+  78:	83579021 	and.c		r26, r23, r4
+  7c:	0000      	nop!
+  7e:	0000      	nop!
+  80:	2025      	or!		r0, r2
+  82:	2025      	or!		r0, r2
+  84:	2545      	or!		r5, r4
+  86:	2545      	or!		r5, r4
+  88:	2f45      	or!		r15, r4
+  8a:	2f45      	or!		r15, r4
+  8c:	2f35      	or!		r15, r3
+  8e:	2f35      	or!		r15, r3
+  90:	2835      	or!		r8, r3
+  92:	2835      	or!		r8, r3
+  94:	81ef9823 	or.c		r15, r15, r6
+  98:	83579023 	or.c		r26, r23, r4
+  9c:	0000      	nop!
+  9e:	0000      	nop!
+  a0:	2027      	xor!		r0, r2
+  a2:	2027      	xor!		r0, r2
+  a4:	2547      	xor!		r5, r4
+  a6:	2547      	xor!		r5, r4
+  a8:	2f47      	xor!		r15, r4
+  aa:	2f47      	xor!		r15, r4
+  ac:	2f37      	xor!		r15, r3
+  ae:	2f37      	xor!		r15, r3
+  b0:	2837      	xor!		r8, r3
+  b2:	2837      	xor!		r8, r3
+  b4:	81ef9827 	xor.c		r15, r15, r6
+  b8:	83579027 	xor.c		r26, r23, r4
+  bc:	0000      	nop!
+  be:	0000      	nop!
+  c0:	002b      	sra!		r0, r2
+  c2:	002b      	sra!		r0, r2
+  c4:	054b      	sra!		r5, r4
+  c6:	054b      	sra!		r5, r4
+  c8:	0f4b      	sra!		r15, r4
+  ca:	0f4b      	sra!		r15, r4
+  cc:	0f3b      	sra!		r15, r3
+  ce:	0f3b      	sra!		r15, r3
+  d0:	083b      	sra!		r8, r3
+  d2:	083b      	sra!		r8, r3
+  d4:	81ef9837 	sra.c		r15, r15, r6
+  d8:	83579037 	sra.c		r26, r23, r4
+  dc:	0000      	nop!
+  de:	0000      	nop!
+  e0:	002a      	srl!		r0, r2
+  e2:	002a      	srl!		r0, r2
+  e4:	054a      	srl!		r5, r4
+  e6:	054a      	srl!		r5, r4
+  e8:	0f4a      	srl!		r15, r4
+  ea:	0f4a      	srl!		r15, r4
+  ec:	0f3a      	srl!		r15, r3
+  ee:	0f3a      	srl!		r15, r3
+  f0:	083a      	srl!		r8, r3
+  f2:	083a      	srl!		r8, r3
+  f4:	81ef9835 	srl.c		r15, r15, r6
+  f8:	83579035 	srl.c		r26, r23, r4
+  fc:	0000      	nop!
+  fe:	0000      	nop!
+ 100:	0028      	sll!		r0, r2
+ 102:	0028      	sll!		r0, r2
+ 104:	0548      	sll!		r5, r4
+ 106:	0548      	sll!		r5, r4
+ 108:	0f48      	sll!		r15, r4
+ 10a:	0f48      	sll!		r15, r4
+ 10c:	0f38      	sll!		r15, r3
+ 10e:	0f38      	sll!		r15, r3
+ 110:	0838      	sll!		r8, r3
+ 112:	0838      	sll!		r8, r3
+ 114:	81ef9831 	sll.c		r15, r15, r6
+ 118:	83579031 	sll.c		r26, r23, r4
+ 11c:	0000      	nop!
+ 11e:	0000      	nop!
+ 120:	80008811 	add.c		r0, r0, r2
+ 124:	82958811 	add.c		r20, r21, r2
+ 128:	81ef9011 	add.c		r15, r15, r4
+ 12c:	83359011 	add.c		r25, r21, r4
+ 130:	81ef8c11 	add.c		r15, r15, r3
+ 134:	83368c11 	add.c		r25, r22, r3
+ 138:	2870      	add!		r8, r7
+ 13a:	2870      	add!		r8, r7
+ 13c:	2640      	add!		r6, r4
+ 13e:	2640      	add!		r6, r4
+ 140:	2740      	add!		r7, r4
+ 142:	2740      	add!		r7, r4
+	...
+ 150:	80008813 	addc.c		r0, r0, r2
+ 154:	82958813 	addc.c		r20, r21, r2
+ 158:	81ef9013 	addc.c		r15, r15, r4
+ 15c:	83359013 	addc.c		r25, r21, r4
+ 160:	81ef8c13 	addc.c		r15, r15, r3
+ 164:	83368c13 	addc.c		r25, r22, r3
+ 168:	0879      	addc!		r8, r7
+ 16a:	0879      	addc!		r8, r7
+ 16c:	0649      	addc!		r6, r4
+ 16e:	0649      	addc!		r6, r4
+ 170:	0749      	addc!		r7, r4
+ 172:	0749      	addc!		r7, r4
+	...
+ 180:	80008815 	sub.c		r0, r0, r2
+ 184:	82958815 	sub.c		r20, r21, r2
+ 188:	81ef9015 	sub.c		r15, r15, r4
+ 18c:	83359015 	sub.c		r25, r21, r4
+ 190:	81ef8c15 	sub.c		r15, r15, r3
+ 194:	83368c15 	sub.c		r25, r22, r3
+ 198:	2871      	sub!		r8, r7
+ 19a:	2871      	sub!		r8, r7
+ 19c:	2641      	sub!		r6, r4
+ 19e:	2641      	sub!		r6, r4
+ 1a0:	2741      	sub!		r7, r4
+ 1a2:	2741      	sub!		r7, r4
+	...
+ 1b0:	80008821 	and.c		r0, r0, r2
+ 1b4:	82958821 	and.c		r20, r21, r2
+ 1b8:	81ef9021 	and.c		r15, r15, r4
+ 1bc:	83359021 	and.c		r25, r21, r4
+ 1c0:	81ef8c21 	and.c		r15, r15, r3
+ 1c4:	83368c21 	and.c		r25, r22, r3
+ 1c8:	2874      	and!		r8, r7
+ 1ca:	2874      	and!		r8, r7
+ 1cc:	2644      	and!		r6, r4
+ 1ce:	2644      	and!		r6, r4
+ 1d0:	2744      	and!		r7, r4
+ 1d2:	2744      	and!		r7, r4
+	...
+ 1e0:	80008823 	or.c		r0, r0, r2
+ 1e4:	82958823 	or.c		r20, r21, r2
+ 1e8:	81ef9023 	or.c		r15, r15, r4
+ 1ec:	83359023 	or.c		r25, r21, r4
+ 1f0:	81ef8c23 	or.c		r15, r15, r3
+ 1f4:	83368c23 	or.c		r25, r22, r3
+ 1f8:	2875      	or!		r8, r7
+ 1fa:	2875      	or!		r8, r7
+ 1fc:	2645      	or!		r6, r4
+ 1fe:	2645      	or!		r6, r4
+ 200:	2745      	or!		r7, r4
+ 202:	2745      	or!		r7, r4
+	...
+ 210:	80008827 	xor.c		r0, r0, r2
+ 214:	82958827 	xor.c		r20, r21, r2
+ 218:	81ef9027 	xor.c		r15, r15, r4
+ 21c:	83359027 	xor.c		r25, r21, r4
+ 220:	81ef8c27 	xor.c		r15, r15, r3
+ 224:	83368c27 	xor.c		r25, r22, r3
+ 228:	2877      	xor!		r8, r7
+ 22a:	2877      	xor!		r8, r7
+ 22c:	2647      	xor!		r6, r4
+ 22e:	2647      	xor!		r6, r4
+ 230:	2747      	xor!		r7, r4
+ 232:	2747      	xor!		r7, r4
+	...
+ 240:	80008837 	sra.c		r0, r0, r2
+ 244:	82958837 	sra.c		r20, r21, r2
+ 248:	81ef9037 	sra.c		r15, r15, r4
+ 24c:	83359037 	sra.c		r25, r21, r4
+ 250:	81ef8c37 	sra.c		r15, r15, r3
+ 254:	83368c37 	sra.c		r25, r22, r3
+ 258:	087b      	sra!		r8, r7
+ 25a:	087b      	sra!		r8, r7
+ 25c:	064b      	sra!		r6, r4
+ 25e:	064b      	sra!		r6, r4
+ 260:	074b      	sra!		r7, r4
+ 262:	074b      	sra!		r7, r4
+	...
+ 270:	80008835 	srl.c		r0, r0, r2
+ 274:	82958835 	srl.c		r20, r21, r2
+ 278:	81ef9035 	srl.c		r15, r15, r4
+ 27c:	83359035 	srl.c		r25, r21, r4
+ 280:	81ef8c35 	srl.c		r15, r15, r3
+ 284:	83368c35 	srl.c		r25, r22, r3
+ 288:	087a      	srl!		r8, r7
+ 28a:	087a      	srl!		r8, r7
+ 28c:	064a      	srl!		r6, r4
+ 28e:	064a      	srl!		r6, r4
+ 290:	074a      	srl!		r7, r4
+ 292:	074a      	srl!		r7, r4
+	...
+ 2a0:	80008831 	sll.c		r0, r0, r2
+ 2a4:	82958831 	sll.c		r20, r21, r2
+ 2a8:	81ef9031 	sll.c		r15, r15, r4
+ 2ac:	83359031 	sll.c		r25, r21, r4
+ 2b0:	81ef8c31 	sll.c		r15, r15, r3
+ 2b4:	83368c31 	sll.c		r25, r22, r3
+ 2b8:	0878      	sll!		r8, r7
+ 2ba:	0878      	sll!		r8, r7
+ 2bc:	0648      	sll!		r6, r4
+ 2be:	0648      	sll!		r6, r4
+ 2c0:	0748      	sll!		r7, r4
+ 2c2:	0748      	sll!		r7, r4
+#pass
diff --git a/gas/testsuite/gas/score/rD_rA_rB.s b/gas/testsuite/gas/score/rD_rA_rB.s
new file mode 100644
index 0000000..1a72b13
--- /dev/null
+++ b/gas/testsuite/gas/score/rD_rA_rB.s
@@ -0,0 +1,86 @@
+/*
+ * test relax
+ * add.c  <-> add!  : register number must be in 0-15
+ * addc.c <-> addc! : register number must be in 0-15
+ * sub.c  <-> sub!  : register number must be in 0-15
+ * and.c  <-> and!  : register number must be in 0-15
+ * or.c   <-> or!   : register number must be in 0-15
+ * xor.c  <-> xor!  : register number must be in 0-15
+ * sra.c  <-> sra!  : register number must be in 0-15
+ * srl.c  <-> srl!  : register number must be in 0-15
+ * sll.c  <-> sll!  : register number must be in 0-15
+
+ * Author: ligang
+ */
+
+
+/* This macro transform 32b instruction to 16b. */
+.macro tran3216 insn32, insn16
+.align 4
+
+  \insn32 r0, r0, r2          #32b -> 16b
+  \insn16 r0, r2
+
+  \insn32 r5, r5, r4          #32b -> 16b
+  \insn16 r5, r4
+
+  \insn32 r15, r15, r4        #32b -> 16b
+  \insn16 r15, r4
+
+  \insn16 r15, r3
+  \insn32 r15, r15, r3        #32b -> 16b
+
+  \insn32 r8, r8, r3          #32b -> 16b
+  \insn32 r8, r8, r3          #32b -> 16b
+	
+  \insn32 r15, r15, r6        #No transform
+  \insn32 r26, r23, r4
+
+.endm
+
+/* This macro transform 16b instruction to 32b. */
+.macro tran1632 insn32, insn16
+.align 4
+
+  \insn16 r0, r2         #16b -> 32b
+  \insn32 r20, r21, r2
+
+  \insn16 r15, r4        #16b -> 32b
+  \insn32 r25, r21, r4
+	
+  \insn16 r15, r3        #16b -> 32b
+  \insn32 r25, r22, r3
+
+  \insn16 r8, r7         #No transform
+  \insn16 r8, r7         #No transform
+		
+  \insn16 r6, r4         #No transform
+  \insn32 r6, r6, r4
+	
+  \insn32 r7, r7, r4     #32b -> 16b
+  \insn16 r7, r4         #No transform
+	
+.endm
+		
+.text
+	
+  tran3216 "add.c", "add!"
+  tran3216 "addc.c", "addc!"
+  tran3216 "sub.c", "sub!"
+  tran3216 "and.c", "and!"
+  tran3216 "or.c", "or!"
+  tran3216 "xor.c", "xor!"
+  tran3216 "sra.c", "sra!"
+  tran3216 "srl.c", "srl!"
+  tran3216 "sll.c", "sll!"	
+
+  tran1632 "add.c", "add!"
+  tran1632 "addc.c", "addc!"
+  tran1632 "sub.c", "sub!"
+  tran1632 "and.c", "and!"
+  tran1632 "or.c", "or!"
+  tran1632 "xor.c", "xor!"
+  tran1632 "sra.c", "sra!"
+  tran1632 "srl.c", "srl!"
+  tran1632 "sll.c", "sll!"	
+
diff --git a/gas/testsuite/gas/score/relax.exp b/gas/testsuite/gas/score/relax.exp
new file mode 100644
index 0000000..6a8f2b8
--- /dev/null
+++ b/gas/testsuite/gas/score/relax.exp
@@ -0,0 +1,20 @@
+# test relax
+
+if [istarget score-*-*] then {
+    run_dump_test "ldi"
+    run_dump_test "nop"
+    run_dump_test "tcond"
+    run_dump_test "ls32ls16"
+    run_dump_test "ls32ls16p"
+    run_dump_test "postlw"
+    run_dump_test "presw"
+    run_dump_test "rD_rA_rB"
+    run_dump_test "bittst"
+    run_dump_test "addi"
+    run_dump_test "br"
+    run_dump_test "b"
+    run_dump_test "move"
+    run_dump_test "rD_rA_BN"
+    run_dump_test "rD_rA"
+}
+
diff --git a/gas/testsuite/gas/score/tcond.d b/gas/testsuite/gas/score/tcond.d
new file mode 100644
index 0000000..04460cf
--- /dev/null
+++ b/gas/testsuite/gas/score/tcond.d
@@ -0,0 +1,264 @@
+#as:
+#objdump: -d
+#source: tcond.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+00000000 <\.text>:
+   0:	0f05      	tset!
+   2:	0f05      	tset!
+   4:	0f05      	tset!
+   6:	0f05      	tset!
+   8:	0f05      	tset!
+   a:	0f05      	tset!
+   c:	8000bc54 	tset
+  10:	8254e010 	add		r18, r20, r24
+	...
+  20:	0f05      	tset!
+  22:	0f05      	tset!
+  24:	0f05      	tset!
+  26:	0f05      	tset!
+  28:	8000bc54 	tset
+  2c:	8254e026 	xor		r18, r20, r24
+  30:	0005      	tcs!
+  32:	0005      	tcs!
+  34:	0005      	tcs!
+  36:	0005      	tcs!
+  38:	0005      	tcs!
+  3a:	0005      	tcs!
+  3c:	80008054 	tcs
+  40:	8254e010 	add		r18, r20, r24
+	...
+  50:	0005      	tcs!
+  52:	0005      	tcs!
+  54:	0005      	tcs!
+  56:	0005      	tcs!
+  58:	80008054 	tcs
+  5c:	8254e026 	xor		r18, r20, r24
+  60:	0105      	tcc!
+  62:	0105      	tcc!
+  64:	0105      	tcc!
+  66:	0105      	tcc!
+  68:	0105      	tcc!
+  6a:	0105      	tcc!
+  6c:	80008454 	tcc
+  70:	8254e010 	add		r18, r20, r24
+	...
+  80:	0105      	tcc!
+  82:	0105      	tcc!
+  84:	0105      	tcc!
+  86:	0105      	tcc!
+  88:	80008454 	tcc
+  8c:	8254e026 	xor		r18, r20, r24
+  90:	0205      	tgtu!
+  92:	0205      	tgtu!
+  94:	0205      	tgtu!
+  96:	0205      	tgtu!
+  98:	0205      	tgtu!
+  9a:	0205      	tgtu!
+  9c:	80008854 	tgtu
+  a0:	8254e010 	add		r18, r20, r24
+	...
+  b0:	0205      	tgtu!
+  b2:	0205      	tgtu!
+  b4:	0205      	tgtu!
+  b6:	0205      	tgtu!
+  b8:	80008854 	tgtu
+  bc:	8254e026 	xor		r18, r20, r24
+  c0:	0305      	tleu!
+  c2:	0305      	tleu!
+  c4:	0305      	tleu!
+  c6:	0305      	tleu!
+  c8:	0305      	tleu!
+  ca:	0305      	tleu!
+  cc:	80008c54 	tleu
+  d0:	8254e010 	add		r18, r20, r24
+	...
+  e0:	0305      	tleu!
+  e2:	0305      	tleu!
+  e4:	0305      	tleu!
+  e6:	0305      	tleu!
+  e8:	80008c54 	tleu
+  ec:	8254e026 	xor		r18, r20, r24
+  f0:	0405      	teq!
+  f2:	0405      	teq!
+  f4:	0405      	teq!
+  f6:	0405      	teq!
+  f8:	0405      	teq!
+  fa:	0405      	teq!
+  fc:	80009054 	teq
+ 100:	8254e010 	add		r18, r20, r24
+	...
+ 110:	0405      	teq!
+ 112:	0405      	teq!
+ 114:	0405      	teq!
+ 116:	0405      	teq!
+ 118:	80009054 	teq
+ 11c:	8254e026 	xor		r18, r20, r24
+ 120:	0505      	tne!
+ 122:	0505      	tne!
+ 124:	0505      	tne!
+ 126:	0505      	tne!
+ 128:	0505      	tne!
+ 12a:	0505      	tne!
+ 12c:	80009454 	tne
+ 130:	8254e010 	add		r18, r20, r24
+	...
+ 140:	0505      	tne!
+ 142:	0505      	tne!
+ 144:	0505      	tne!
+ 146:	0505      	tne!
+ 148:	80009454 	tne
+ 14c:	8254e026 	xor		r18, r20, r24
+ 150:	0605      	tgt!
+ 152:	0605      	tgt!
+ 154:	0605      	tgt!
+ 156:	0605      	tgt!
+ 158:	0605      	tgt!
+ 15a:	0605      	tgt!
+ 15c:	80009854 	tgt
+ 160:	8254e010 	add		r18, r20, r24
+	...
+ 170:	0605      	tgt!
+ 172:	0605      	tgt!
+ 174:	0605      	tgt!
+ 176:	0605      	tgt!
+ 178:	80009854 	tgt
+ 17c:	8254e026 	xor		r18, r20, r24
+ 180:	0705      	tle!
+ 182:	0705      	tle!
+ 184:	0705      	tle!
+ 186:	0705      	tle!
+ 188:	0705      	tle!
+ 18a:	0705      	tle!
+ 18c:	80009c54 	tle
+ 190:	8254e010 	add		r18, r20, r24
+	...
+ 1a0:	0705      	tle!
+ 1a2:	0705      	tle!
+ 1a4:	0705      	tle!
+ 1a6:	0705      	tle!
+ 1a8:	80009c54 	tle
+ 1ac:	8254e026 	xor		r18, r20, r24
+ 1b0:	0805      	tge!
+ 1b2:	0805      	tge!
+ 1b4:	0805      	tge!
+ 1b6:	0805      	tge!
+ 1b8:	0805      	tge!
+ 1ba:	0805      	tge!
+ 1bc:	8000a054 	tge
+ 1c0:	8254e010 	add		r18, r20, r24
+	...
+ 1d0:	0805      	tge!
+ 1d2:	0805      	tge!
+ 1d4:	0805      	tge!
+ 1d6:	0805      	tge!
+ 1d8:	8000a054 	tge
+ 1dc:	8254e026 	xor		r18, r20, r24
+ 1e0:	0905      	tlt!
+ 1e2:	0905      	tlt!
+ 1e4:	0905      	tlt!
+ 1e6:	0905      	tlt!
+ 1e8:	0905      	tlt!
+ 1ea:	0905      	tlt!
+ 1ec:	8000a454 	tlt
+ 1f0:	8254e010 	add		r18, r20, r24
+	...
+ 200:	0905      	tlt!
+ 202:	0905      	tlt!
+ 204:	0905      	tlt!
+ 206:	0905      	tlt!
+ 208:	8000a454 	tlt
+ 20c:	8254e026 	xor		r18, r20, r24
+ 210:	0a05      	tmi!
+ 212:	0a05      	tmi!
+ 214:	0a05      	tmi!
+ 216:	0a05      	tmi!
+ 218:	0a05      	tmi!
+ 21a:	0a05      	tmi!
+ 21c:	8000a854 	tmi
+ 220:	8254e010 	add		r18, r20, r24
+	...
+ 230:	0a05      	tmi!
+ 232:	0a05      	tmi!
+ 234:	0a05      	tmi!
+ 236:	0a05      	tmi!
+ 238:	8000a854 	tmi
+ 23c:	8254e026 	xor		r18, r20, r24
+ 240:	0b05      	tpl!
+ 242:	0b05      	tpl!
+ 244:	0b05      	tpl!
+ 246:	0b05      	tpl!
+ 248:	0b05      	tpl!
+ 24a:	0b05      	tpl!
+ 24c:	8000ac54 	tpl
+ 250:	8254e010 	add		r18, r20, r24
+	...
+ 260:	0b05      	tpl!
+ 262:	0b05      	tpl!
+ 264:	0b05      	tpl!
+ 266:	0b05      	tpl!
+ 268:	8000ac54 	tpl
+ 26c:	8254e026 	xor		r18, r20, r24
+ 270:	0c05      	tvs!
+ 272:	0c05      	tvs!
+ 274:	0c05      	tvs!
+ 276:	0c05      	tvs!
+ 278:	0c05      	tvs!
+ 27a:	0c05      	tvs!
+ 27c:	8000b054 	tvs
+ 280:	8254e010 	add		r18, r20, r24
+	...
+ 290:	0c05      	tvs!
+ 292:	0c05      	tvs!
+ 294:	0c05      	tvs!
+ 296:	0c05      	tvs!
+ 298:	8000b054 	tvs
+ 29c:	8254e026 	xor		r18, r20, r24
+ 2a0:	0d05      	tvc!
+ 2a2:	0d05      	tvc!
+ 2a4:	0d05      	tvc!
+ 2a6:	0d05      	tvc!
+ 2a8:	0d05      	tvc!
+ 2aa:	0d05      	tvc!
+ 2ac:	8000b454 	tvc
+ 2b0:	8254e010 	add		r18, r20, r24
+	...
+ 2c0:	0d05      	tvc!
+ 2c2:	0d05      	tvc!
+ 2c4:	0d05      	tvc!
+ 2c6:	0d05      	tvc!
+ 2c8:	8000b454 	tvc
+ 2cc:	8254e026 	xor		r18, r20, r24
+ 2d0:	0e05      	tcnz!
+ 2d2:	0e05      	tcnz!
+ 2d4:	0e05      	tcnz!
+ 2d6:	0e05      	tcnz!
+ 2d8:	0e05      	tcnz!
+ 2da:	0e05      	tcnz!
+ 2dc:	8000b854 	tcnz
+ 2e0:	8254e010 	add		r18, r20, r24
+	...
+ 2f0:	0e05      	tcnz!
+ 2f2:	0e05      	tcnz!
+ 2f4:	0e05      	tcnz!
+ 2f6:	0e05      	tcnz!
+ 2f8:	8000b854 	tcnz
+ 2fc:	8254e026 	xor		r18, r20, r24
+ 300:	6062      	sdbbp!		12
+ 302:	6062      	sdbbp!		12
+ 304:	6062      	sdbbp!		12
+ 306:	6062      	sdbbp!		12
+ 308:	6062      	sdbbp!		12
+ 30a:	6062      	sdbbp!		12
+ 30c:	800c8006 	sdbbp		12
+ 310:	8254e010 	add		r18, r20, r24
+	...
+ 320:	6062      	sdbbp!		12
+ 322:	6062      	sdbbp!		12
+ 324:	6062      	sdbbp!		12
+ 326:	6062      	sdbbp!		12
+ 328:	800c8006 	sdbbp		12
+ 32c:	8254e026 	xor		r18, r20, r24
diff --git a/gas/testsuite/gas/score/tcond.s b/gas/testsuite/gas/score/tcond.s
new file mode 100644
index 0000000..fe89bad
--- /dev/null
+++ b/gas/testsuite/gas/score/tcond.s
@@ -0,0 +1,55 @@
+/*
+ * test relax
+ * Tcond <-> Tcond!
+ * sdbbp <-> sdbbp!
+	
+ * Author: ligang
+ */
+
+.macro tran insn32, insn16
+/* This block transform 32b instruction to 16b. */
+.align 4
+	
+  \insn32               #32b -> 16b
+  \insn16
+
+  \insn32               #32b -> 16b
+  \insn32               #32b -> 16b
+
+  \insn16      
+  \insn32               #32b -> 16b
+
+  \insn32               #No transform
+  add r18, r20, r24
+
+/* This block transform 16b instruction to 32b. */
+.align 4
+	
+  \insn16               #No transform
+  \insn32
+
+  \insn16               #No transform
+  \insn16
+
+  \insn16               #16b -> 32b
+  xor r18, r20, r24
+	
+.endm
+
+  tran "tset", "tset!"
+  tran "tcs",  "tcs!"
+  tran "tcc",  "tcc!"
+  tran "tgtu", "tgtu!"
+  tran "tleu", "tleu!"
+  tran "teq",  "teq!"
+  tran "tne",  "tne!"
+  tran "tgt",  "tgt!"
+  tran "tle",  "tle!"
+  tran "tge",  "tge!"
+  tran "tlt",  "tlt!"
+  tran "tmi",  "tmi!"
+  tran "tpl",  "tpl!"
+  tran "tvs",  "tvs!"
+  tran "tvc",  "tvc!"
+  tran "tcnz", "tcnz!"
+  tran "sdbbp 12", "sdbbp! 12"