gas/doc/riscv: Fixed misaligned instruction table

gas/
	* doc/c-riscv.texi: Fixed misaligned instruction table.

Author: Nelson Chu

gas/doc/c-riscv.texi

@@ -556,45 +556,45 @@ with the @samp{.insn} pseudo directive:
 @table @code
 @item R type: .insn r opcode7, funct3, funct7, rd, rs1, rs2
 @verbatim
-+-------+-----+-----+-------+----+---------+
++--------+-----+-----+--------+----+---------+
 | funct7 | rs2 | rs1 | funct3 | rd | opcode7 |
-+-------+-----+-----+-------+----+---------+
-31      25    20    15      12   7        0
++--------+-----+-----+--------+----+---------+
+31       25    20    15       12   7         0
 @end verbatim
 
 @item R type with 4 register operands: .insn r opcode7, funct3, funct2, rd, rs1, rs2, rs3
 @itemx R4 type: .insn r4 opcode7, funct3, funct2, rd, rs1, rs2, rs3
 @verbatim
-+-----+-------+-----+-----+-------+----+---------+
++-----+--------+-----+-----+--------+----+---------+
 | rs3 | funct2 | rs2 | rs1 | funct3 | rd | opcode7 |
-+-----+-------+-----+-----+-------+----+---------+
-31    27      25    20    15      12   7         0
++-----+--------+-----+-----+--------+----+---------+
+31    27       25    20    15       12   7         0
 @end verbatim
 
 @item I type: .insn i opcode7, funct3, rd, rs1, simm12
 @itemx I type: .insn i opcode7, funct3, rd, simm12(rs1)
 @verbatim
-+--------------+-----+-------+----+---------+
++--------------+-----+--------+----+---------+
 | simm12[11:0] | rs1 | funct3 | rd | opcode7 |
-+--------------+-----+-------+----+---------+
-31             20    15      12   7         0
++--------------+-----+--------+----+---------+
+31             20    15       12   7         0
 @end verbatim
 
 @item S type: .insn s opcode7, funct3, rs2, simm12(rs1)
 @verbatim
-+--------------+-----+-----+-------+-------------+---------+
++--------------+-----+-----+--------+-------------+---------+
 | simm12[11:5] | rs2 | rs1 | funct3 | simm12[4:0] | opcode7 |
-+--------------+-----+-----+-------+-------------+---------+
-31             25    20    15      12            7         0
++--------------+-----+-----+--------+-------------+---------+
+31             25    20    15       12            7         0
 @end verbatim
 
 @item B type: .insn s opcode7, funct3, rs1, rs2, symbol
 @itemx SB type: .insn sb opcode7, funct3, rs1, rs2, symbol
 @verbatim
-+-----------------+-----+-----+-------+----------------+---------+
++-----------------+-----+-----+--------+----------------+---------+
 | simm12[12|10:5] | rs2 | rs1 | funct3 | simm12[4:1|11] | opcode7 |
-+-----------------+-----+-----+-------+----------------+---------+
-31                25    20    15      12               7         0
++-----------------+-----+-----+--------+----------------+---------+
+31                25    20    15       12               7         0
 @end verbatim
 
 @item U type: .insn u opcode7, rd, simm20
@@ -616,74 +616,74 @@ with the @samp{.insn} pseudo directive:
 
 @item CR type: .insn cr opcode2, funct4, rd, rs2
 @verbatim
-+-------+--------+-----+---------+
++--------+--------+-----+---------+
 | funct4 | rd/rs1 | rs2 | opcode2 |
-+-------+--------+-----+---------+
-15      12       7     2        0
++--------+--------+-----+---------+
+15       12       7     2        0
 @end verbatim
 
 @item CI type: .insn ci opcode2, funct3, rd, simm6
 @verbatim
-+-------+----------+--------+------------+---------+
++--------+----------+--------+------------+---------+
 | funct3 | simm6[5] | rd/rs1 | simm6[4:0] | opcode2 |
-+-------+----------+--------+------------+---------+
-15      13         12       7            2         0
++--------+----------+--------+------------+---------+
+15       13         12       7            2         0
 @end verbatim
 
 @item CIW type: .insn ciw opcode2, funct3, rd', uimm8
 @verbatim
-+-------+------------+-----+---------+
++--------+------------+-----+---------+
 | funct3 | uimm8[7:0] | rd' | opcode2 |
-+-------+-------- ---+-----+---------+
-15      13           5     2         0
++--------+-------- ---+-----+---------+
+15       13           5     2         0
 @end verbatim
 
 @item CSS type: .insn css opcode2, funct3, rd, uimm6
 @verbatim
-+-------+------------+----+---------+
++--------+------------+----+---------+
 | funct3 | uimm6[5:0] | rd | opcode2 |
-+-------+------------+----+---------+
-15      13           7    2         0
++--------+------------+----+---------+
+15       13           7    2         0
 @end verbatim
 
 @item CL type: .insn cl opcode2, funct3, rd', uimm5(rs1')
 @verbatim
-+-------+------------+------+------------+------+---------+
++--------+------------+------+------------+------+---------+
 | funct3 | uimm5[4:2] | rs1' | uimm5[1:0] |  rd' | opcode2 |
-+-------+------------+------+------------+------+---------+
-15      13           10     7            5      2         0
++--------+------------+------+------------+------+---------+
+15       13           10     7            5      2         0
 @end verbatim
 
 @item CS type: .insn cs opcode2, funct3, rs2', uimm5(rs1')
 @verbatim
-+-------+------------+------+------------+------+---------+
++--------+------------+------+------------+------+---------+
 | funct3 | uimm5[4:2] | rs1' | uimm5[1:0] | rs2' | opcode2 |
-+-------+------------+------+------------+------+---------+
-15      13           10     7            5      2         0
++--------+------------+------+------------+------+---------+
+15       13           10     7            5      2         0
 @end verbatim
 
 @item CA type: .insn ca opcode2, funct6, funct2, rd', rs2'
 @verbatim
-+-- ----+----------+-------+------+---------+
++--------+----------+--------+------+---------+
 | funct6 | rd'/rs1' | funct2 | rs2' | opcode2 |
-+-------+----------+-------+------+---------+
-15      10         7       5      2         0
++--------+----------+--------+------+---------+
+15       10         7        5      2         0
 @end verbatim
 
 @item CB type: .insn cb opcode2, funct3, rs1', symbol
 @verbatim
-+-------+--------------+------+------------------+---------+
++--------+--------------+------+------------------+---------+
 | funct3 | simm8[8|4:3] | rs1' | simm8[7:6|2:1|5] | opcode2 |
-+-------+--------------+------+------------------+---------+
-15      13             10     7                  2         0
++--------+--------------+------+------------------+---------+
+15       13             10     7                  2         0
 @end verbatim
 
 @item CJ type: .insn cj opcode2, funct3, symbol
 @verbatim
-+-------+-------------------------------+---------+
++--------+-------------------------------+---------+
 | funct3 | simm11[11|4|9:8|10|6|7|3:1|5] | opcode2 |
-+-------+-------------------------------+---------+
-15      13                              2         0
++--------+-------------------------------+---------+
+15       13                              2         0
 @end verbatim