Add support for 48 and 64 bit ARC instructions.

gas	* config/tc-arc.c (parse_opcode_flags): New function.
	(find_opcode_match): Move flag parsing code out to new function.
	Ignore operands marked IGNORE.
	(build_fake_opcode_hash_entry): New function.
	(find_special_case_long_opcode): New function.
	(find_special_case): Lookup long opcodes.
	* testsuite/gas/arc/nps400-7.d: New file.
	* testsuite/gas/arc/nps400-7.s: New file.

include	* opcode/arc.h (MAX_INSN_ARGS): Increase to 16.
	(struct arc_long_opcode): New structure.
	(arc_long_opcodes): Declare.
	(arc_num_long_opcodes): Declare.

opcodes	* arc-dis.c (struct arc_operand_iterator): New structure.
	(find_format_from_table): All the old content from find_format,
	with some minor adjustments, and parameter renaming.
	(find_format_long_instructions): New function.
	(find_format): Rewritten.
	(arc_insn_length): Add LSB parameter.
	(extract_operand_value): New function.
	(operand_iterator_next): New function.
	(print_insn_arc): Use new functions to find opcode, and iterator
	over operands.
	* arc-opc.c (insert_nps_3bit_dst_short): New function.
	(extract_nps_3bit_dst_short): New function.
	(insert_nps_3bit_src2_short): New function.
	(extract_nps_3bit_src2_short): New function.
	(insert_nps_bitop1_size): New function.
	(extract_nps_bitop1_size): New function.
	(insert_nps_bitop2_size): New function.
	(extract_nps_bitop2_size): New function.
	(insert_nps_bitop_mod4_msb): New function.
	(extract_nps_bitop_mod4_msb): New function.
	(insert_nps_bitop_mod4_lsb): New function.
	(extract_nps_bitop_mod4_lsb): New function.
	(insert_nps_bitop_dst_pos3_pos4): New function.
	(extract_nps_bitop_dst_pos3_pos4): New function.
	(insert_nps_bitop_ins_ext): New function.
	(extract_nps_bitop_ins_ext): New function.
	(arc_operands): Add new operands.
	(arc_long_opcodes): New global array.
	(arc_num_long_opcodes): New global.
	* arc-nps400-tbl.h: Add comments referencing arc_long_opcodes.

2 files changed, 73 insertions, 0 deletions

diff --git a/gas/testsuite/gas/arc/nps400-7.d b/gas/testsuite/gas/arc/nps400-7.d
new file mode 100644
index 0000000..8e47d19
--- /dev/null
+++ b/gas/testsuite/gas/arc/nps400-7.d
@@ -0,0 +1,32 @@
+#as: -mcpu=nps400
+#objdump: -dr
+
+.*: +file format .*arc.*
+
+Disassembly of section .text:
+
+[0-9a-f]+ <.*>:
+   0:	5823 0224 10c5      	mrgb	r0,r0,r1,0x4,0x5,0x3,0x8,0x6,0x2
+   6:	5a23 8224 10c5      	mrgb.cl	r2,r2,r1,0x4,0x5,0x3,0x8,0x6,0x2
+   c:	5940 0e04 10c2      	mov2b	r1,r1,r2,0x4,0x3,0x2,0x8,0x1,0x6
+  12:	5940 8e04 10c2      	mov2b.cl	r1,r2,0x4,0x3,0x2,0x8,0x1,0x6
+  18:	5b81 01cf f945      	ext4b	r3,r3,r12,0x1c,0x5,0xa,0x1e,0x1f
+  1e:	5aa1 81cf f945      	ext4b.cl	r2,r13,0x1c,0x5,0xa,0x1e,0x1f
+  24:	5b82 01cf f945      	ins4b	r3,r3,r12,0x5,0xa,0x1e,0x1f,0x1c
+  2a:	5aa2 81cf f945      	ins4b.cl	r2,r13,0x5,0xa,0x1e,0x1f,0x1c
+  30:	5e90 5280 d953 8446 	mov3b	r14,r14,r12,0x1,0,0x6,0x7,0x3,0x2,0x14,0x2,0x15
+  38:	5990 0c60 e281 9201 	mov3b	r1,r1,r12,0x4,0x1,0x1,0x3,0,0x10,0x3,0x3,0x8
+  40:	5e90 39c0 8c34 204e 	mov3b	r14,r14,r12,0x8,0x2,0xe,0x8,0x1,0x2,0xe,0,0x3
+  48:	5990 14a0 b621 b1a1 	mov3b	r1,r1,r12,0xc,0x3,0x1,0x3,0x2,0xd,0x5,0x1,0x2
+  50:	5831 3180 e800 0421 	mov3bcl	r0,r1,0x1,0,0x1,0,0x1,0x1,0xc,0x3,0
+  58:	5831 7fe0 d23b 0845 	mov3bcl	r0,r1,0x2,0x1,0x5,0x16,0x2,0x2,0x1f,0x2,0x3
+  60:	5831 7bc0 bdfb 8cc9 	mov3bcl	r0,r1,0x3,0x2,0x9,0x17,0x3,0x6,0x1e,0x1,0x1f
+  68:	5831 7bc0 87ec 13cb 	mov3bcl	r0,r1,0x4,0x3,0xb,0x18,0,0x1e,0x1e,0,0x1e
+  70:	58d0 38c3 3671 2814 	mov4b	r0,r0,r14,0xa,0x3,0x14,0x2,0x2,0,0x6,0x1,0x7,0xe,0,0x3
+  78:	58d0 e3e2 58b6 048b 	mov4b	r0,r0,r14,0x1,0,0xb,0xc,0x3,0x4,0x1f,0x2,0xb,0x18,0x1,0x2
+  80:	58d0 2068 e3fa 97c8 	mov4b	r0,r0,r14,0x5,0x1,0x8,0x15,0,0x1e,0x3,0x3,0x1f,0x8,0x2,0x8
+  88:	58d0 91a4 8deb 3ecd 	mov4b	r0,r0,r14,0xf,0x2,0xd,0x16,0x1,0x16,0xd,0,0x1e,0x4,0x3,0x4
+  90:	5cb1 1064 7231 0441 	mov4bcl	r12,r13,0x1,0x1,0x1,0x2,0x2,0x2,0x3,0x3,0x3,0x4,0,0x4
+  98:	5dd1 9064 1c31 0441 	mov4bcl	r13,r14,0x1,0x2,0x1,0x2,0x3,0x2,0x3,0,0x3,0x4,0x1,0x4
+  a0:	5a71 1064 a631 0441 	mov4bcl	r2,r3,0x1,0x3,0x1,0x2,0,0x2,0x3,0x1,0x3,0x4,0x2,0x4
+  a8:	5951 9064 c831 0441 	mov4bcl	r1,r2,0x1,0,0x1,0x2,0x1,0x2,0x3,0x2,0x3,0x4,0x3,0x4
diff --git a/gas/testsuite/gas/arc/nps400-7.s b/gas/testsuite/gas/arc/nps400-7.s
new file mode 100644
index 0000000..d02712b
--- /dev/null
+++ b/gas/testsuite/gas/arc/nps400-7.s
@@ -0,0 +1,41 @@
+        .text
+
+        ;; mrgb
+        mrgb		r0,r0,r1,4,5,3,8,6,2
+        mrgb.cl		r2,r2,r1,4,5,3,8,6,2
+
+        ;; mov2b
+        mov2b		r1,r1,r2,4,3,2,8,1,6
+        mov2b.cl	r1,r2,4,3,2,8,1,6
+
+        ;; ext4b
+        ext4b		r3,r3,r12,28,5,10,30,31
+        ext4b.cl	r2,r13,28,5,10,30,31
+
+        ;; ins4b
+        ins4b		r3,r3,r12,5,10,30,31,28
+        ins4b.cl	r2,r13,5,10,30,31,28
+
+        ;; mov3b
+        mov3b   r14,r14,r12, 1,0,6,  7,3,2,  20,2,21
+        mov3b   r1,r1,r12,   4,1,1,  3,0,16, 3,3,8
+        mov3b   r14,r14,r12, 8,2,14, 8,1,2,  14,0,3
+        mov3b   r1,r1,r12,   12,3,1, 3,2,13, 5,1,2
+
+        ;; mov3bcl
+        mov3bcl    r0,r1,  1,0,1,  0,1,1,   12,3,0
+        mov3b.cl   r0,r1,  2,1,5,  22,2,2,  31,2,3
+        mov3bcl    r0,r1,  3,2,9,  23,3,6,  30,1,31
+        mov3b.cl   r0,r1,  4,3,11, 24,0,30, 30,0,30
+
+        ;; mov4b
+        mov4b   r0,r0,r14,  10,3,20, 2,2,0,   6,1,7,   14,0,3
+        mov4b   r0,r0,r14,  1,0,11,  12,3,4,  31,2,11, 24,1,2
+        mov4b   r0,r0,r14,  5,1,8,   21,0,30, 3,3,31,  8,2,8
+        mov4b   r0,r0,r14,  15,2,13, 22,1,22, 13,0,30, 4,3,4
+
+        ;; mov4bl
+        mov4bcl    r12,r13,1,1,1,2,2,2,3,3,3,4,0,4
+        mov4b.cl   r13,r14,1,2,1,2,3,2,3,0,3,4,1,4
+        mov4bcl    r2,r3,  1,3,1,2,0,2,3,1,3,4,2,4
+        mov4b.cl   r1,r2,  1,0,1,2,1,2,3,2,3,4,3,4