[mirror_qemu.git] / target / riscv / insn32.decode

#
# RISC-V translation routines for the RVXI Base Integer Instruction Set.
#
# Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de
#                    Bastian Koppelmann, kbastian@mail.uni-paderborn.de
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2 or later, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program.  If not, see <http://www.gnu.org/licenses/>.

# Fields:
%rs3       27:5
%rs2       20:5
%rs1       15:5
%rd        7:5

%sh10    20:10
%csr    20:12
%rm     12:3

# immediates:
%imm_i    20:s12
%imm_s    25:s7 7:5
%imm_b    31:s1 7:1 25:6 8:4     !function=ex_shift_1
%imm_j    31:s1 12:8 20:1 21:10  !function=ex_shift_1
%imm_u    12:s20                 !function=ex_shift_12

# Argument sets:
&b    imm rs2 rs1
&i    imm rs1 rd
&r    rd rs1 rs2
&shift     shamt rs1 rd
&atomic    aq rl rs2 rs1 rd

# Formats 32:
@r       .......   ..... ..... ... ..... ....... &r                %rs2 %rs1 %rd
@i       ............    ..... ... ..... ....... &i      imm=%imm_i     %rs1 %rd
@b       .......   ..... ..... ... ..... ....... &b      imm=%imm_b %rs2 %rs1
@s       .......   ..... ..... ... ..... .......         imm=%imm_s %rs2 %rs1
@u       ....................      ..... .......         imm=%imm_u          %rd
@j       ....................      ..... .......         imm=%imm_j          %rd

@sh      ......  ...... .....  ... ..... ....... &shift  shamt=%sh10      %rs1 %rd
@csr     ............   .....  ... ..... .......               %csr     %rs1 %rd

@atom_ld ..... aq:1 rl:1 ..... ........ ..... ....... &atomic rs2=0     %rs1 %rd
@atom_st ..... aq:1 rl:1 ..... ........ ..... ....... &atomic %rs2      %rs1 %rd

@r4_rm   ..... ..  ..... ..... ... ..... ....... %rs3 %rs2 %rs1 %rm %rd
@r_rm    .......   ..... ..... ... ..... ....... %rs2 %rs1 %rm %rd
@r2_rm   .......   ..... ..... ... ..... ....... %rs1 %rm %rd
@r2      .......   ..... ..... ... ..... ....... %rs1 %rd

@sfence_vma ....... ..... .....   ... ..... ....... %rs2 %rs1
@sfence_vm  ....... ..... .....   ... ..... ....... %rs1


# *** Privileged Instructions ***
ecall      000000000000     00000 000 00000 1110011
ebreak     000000000001     00000 000 00000 1110011
uret       0000000    00010 00000 000 00000 1110011
sret       0001000    00010 00000 000 00000 1110011
hret       0010000    00010 00000 000 00000 1110011
mret       0011000    00010 00000 000 00000 1110011
wfi        0001000    00101 00000 000 00000 1110011
sfence_vma 0001001    ..... ..... 000 00000 1110011 @sfence_vma
sfence_vm  0001000    00100 ..... 000 00000 1110011 @sfence_vm

# *** RV32I Base Instruction Set ***
lui      ....................       ..... 0110111 @u
auipc    ....................       ..... 0010111 @u
jal      ....................       ..... 1101111 @j
jalr     ............     ..... 000 ..... 1100111 @i
beq      ....... .....    ..... 000 ..... 1100011 @b
bne      ....... .....    ..... 001 ..... 1100011 @b
blt      ....... .....    ..... 100 ..... 1100011 @b
bge      ....... .....    ..... 101 ..... 1100011 @b
bltu     ....... .....    ..... 110 ..... 1100011 @b
bgeu     ....... .....    ..... 111 ..... 1100011 @b
lb       ............     ..... 000 ..... 0000011 @i
lh       ............     ..... 001 ..... 0000011 @i
lw       ............     ..... 010 ..... 0000011 @i
lbu      ............     ..... 100 ..... 0000011 @i
lhu      ............     ..... 101 ..... 0000011 @i
sb       .......  .....   ..... 000 ..... 0100011 @s
sh       .......  .....   ..... 001 ..... 0100011 @s
sw       .......  .....   ..... 010 ..... 0100011 @s
addi     ............     ..... 000 ..... 0010011 @i
slti     ............     ..... 010 ..... 0010011 @i
sltiu    ............     ..... 011 ..... 0010011 @i
xori     ............     ..... 100 ..... 0010011 @i
ori      ............     ..... 110 ..... 0010011 @i
andi     ............     ..... 111 ..... 0010011 @i
slli     00.... ......    ..... 001 ..... 0010011 @sh
srli     00.... ......    ..... 101 ..... 0010011 @sh
srai     01.... ......    ..... 101 ..... 0010011 @sh
add      0000000 .....    ..... 000 ..... 0110011 @r
sub      0100000 .....    ..... 000 ..... 0110011 @r
sll      0000000 .....    ..... 001 ..... 0110011 @r
slt      0000000 .....    ..... 010 ..... 0110011 @r
sltu     0000000 .....    ..... 011 ..... 0110011 @r
xor      0000000 .....    ..... 100 ..... 0110011 @r
srl      0000000 .....    ..... 101 ..... 0110011 @r
sra      0100000 .....    ..... 101 ..... 0110011 @r
or       0000000 .....    ..... 110 ..... 0110011 @r
and      0000000 .....    ..... 111 ..... 0110011 @r
fence    ---- pred:4 succ:4 ----- 000 ----- 0001111
fence_i  ---- ----   ----   ----- 001 ----- 0001111
csrrw    ............     ..... 001 ..... 1110011 @csr
csrrs    ............     ..... 010 ..... 1110011 @csr
csrrc    ............     ..... 011 ..... 1110011 @csr
csrrwi   ............     ..... 101 ..... 1110011 @csr
csrrsi   ............     ..... 110 ..... 1110011 @csr
csrrci   ............     ..... 111 ..... 1110011 @csr

# *** RV32M Standard Extension ***
mul      0000001 .....  ..... 000 ..... 0110011 @r
mulh     0000001 .....  ..... 001 ..... 0110011 @r
mulhsu   0000001 .....  ..... 010 ..... 0110011 @r
mulhu    0000001 .....  ..... 011 ..... 0110011 @r
div      0000001 .....  ..... 100 ..... 0110011 @r
divu     0000001 .....  ..... 101 ..... 0110011 @r
rem      0000001 .....  ..... 110 ..... 0110011 @r
remu     0000001 .....  ..... 111 ..... 0110011 @r

# *** RV32A Standard Extension ***
lr_w       00010 . . 00000 ..... 010 ..... 0101111 @atom_ld
sc_w       00011 . . ..... ..... 010 ..... 0101111 @atom_st
amoswap_w  00001 . . ..... ..... 010 ..... 0101111 @atom_st
amoadd_w   00000 . . ..... ..... 010 ..... 0101111 @atom_st
amoxor_w   00100 . . ..... ..... 010 ..... 0101111 @atom_st
amoand_w   01100 . . ..... ..... 010 ..... 0101111 @atom_st
amoor_w    01000 . . ..... ..... 010 ..... 0101111 @atom_st
amomin_w   10000 . . ..... ..... 010 ..... 0101111 @atom_st
amomax_w   10100 . . ..... ..... 010 ..... 0101111 @atom_st
amominu_w  11000 . . ..... ..... 010 ..... 0101111 @atom_st
amomaxu_w  11100 . . ..... ..... 010 ..... 0101111 @atom_st

# *** RV32F Standard Extension ***
flw        ............   ..... 010 ..... 0000111 @i
fsw        .......  ..... ..... 010 ..... 0100111 @s
fmadd_s    ..... 00 ..... ..... ... ..... 1000011 @r4_rm
fmsub_s    ..... 00 ..... ..... ... ..... 1000111 @r4_rm
fnmsub_s   ..... 00 ..... ..... ... ..... 1001011 @r4_rm
fnmadd_s   ..... 00 ..... ..... ... ..... 1001111 @r4_rm
fadd_s     0000000  ..... ..... ... ..... 1010011 @r_rm
fsub_s     0000100  ..... ..... ... ..... 1010011 @r_rm
fmul_s     0001000  ..... ..... ... ..... 1010011 @r_rm
fdiv_s     0001100  ..... ..... ... ..... 1010011 @r_rm
fsqrt_s    0101100  00000 ..... ... ..... 1010011 @r2_rm
fsgnj_s    0010000  ..... ..... 000 ..... 1010011 @r
fsgnjn_s   0010000  ..... ..... 001 ..... 1010011 @r
fsgnjx_s   0010000  ..... ..... 010 ..... 1010011 @r
fmin_s     0010100  ..... ..... 000 ..... 1010011 @r
fmax_s     0010100  ..... ..... 001 ..... 1010011 @r
fcvt_w_s   1100000  00000 ..... ... ..... 1010011 @r2_rm
fcvt_wu_s  1100000  00001 ..... ... ..... 1010011 @r2_rm
fmv_x_w    1110000  00000 ..... 000 ..... 1010011 @r2
feq_s      1010000  ..... ..... 010 ..... 1010011 @r
flt_s      1010000  ..... ..... 001 ..... 1010011 @r
fle_s      1010000  ..... ..... 000 ..... 1010011 @r
fclass_s   1110000  00000 ..... 001 ..... 1010011 @r2
fcvt_s_w   1101000  00000 ..... ... ..... 1010011 @r2_rm
fcvt_s_wu  1101000  00001 ..... ... ..... 1010011 @r2_rm
fmv_w_x    1111000  00000 ..... 000 ..... 1010011 @r2

# *** RV32D Standard Extension ***
fld        ............   ..... 011 ..... 0000111 @i
fsd        ....... .....  ..... 011 ..... 0100111 @s
fmadd_d    ..... 01 ..... ..... ... ..... 1000011 @r4_rm
fmsub_d    ..... 01 ..... ..... ... ..... 1000111 @r4_rm
fnmsub_d   ..... 01 ..... ..... ... ..... 1001011 @r4_rm
fnmadd_d   ..... 01 ..... ..... ... ..... 1001111 @r4_rm
fadd_d     0000001  ..... ..... ... ..... 1010011 @r_rm
fsub_d     0000101  ..... ..... ... ..... 1010011 @r_rm
fmul_d     0001001  ..... ..... ... ..... 1010011 @r_rm
fdiv_d     0001101  ..... ..... ... ..... 1010011 @r_rm
fsqrt_d    0101101  00000 ..... ... ..... 1010011 @r2_rm
fsgnj_d    0010001  ..... ..... 000 ..... 1010011 @r
fsgnjn_d   0010001  ..... ..... 001 ..... 1010011 @r
fsgnjx_d   0010001  ..... ..... 010 ..... 1010011 @r
fmin_d     0010101  ..... ..... 000 ..... 1010011 @r
fmax_d     0010101  ..... ..... 001 ..... 1010011 @r
fcvt_s_d   0100000  00001 ..... ... ..... 1010011 @r2_rm
fcvt_d_s   0100001  00000 ..... ... ..... 1010011 @r2_rm
feq_d      1010001  ..... ..... 010 ..... 1010011 @r
flt_d      1010001  ..... ..... 001 ..... 1010011 @r
fle_d      1010001  ..... ..... 000 ..... 1010011 @r
fclass_d   1110001  00000 ..... 001 ..... 1010011 @r2
fcvt_w_d   1100001  00000 ..... ... ..... 1010011 @r2_rm
fcvt_wu_d  1100001  00001 ..... ... ..... 1010011 @r2_rm
fcvt_d_w   1101001  00000 ..... ... ..... 1010011 @r2_rm
fcvt_d_wu  1101001  00001 ..... ... ..... 1010011 @r2_rm
Commit	Line	Data
2a53cff4 BK	1	#
	2	# RISC-V translation routines for the RVXI Base Integer Instruction Set.
	3	#
	4	# Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de
	5	# Bastian Koppelmann, kbastian@mail.uni-paderborn.de
	6	#
	7	# This program is free software; you can redistribute it and/or modify it
	8	# under the terms and conditions of the GNU General Public License,
	9	# version 2 or later, as published by the Free Software Foundation.
	10	#
	11	# This program is distributed in the hope it will be useful, but WITHOUT
	12	# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	# more details.
	15	#
	16	# You should have received a copy of the GNU General Public License along with
	17	# this program. If not, see <http://www.gnu.org/licenses/>.
	18
	19	# Fields:
6f0e74ff	20	%rs3 27:5
3cca75a6 BK	21	%rs2 20:5
3cca75a6 BK	22	%rs1 15:5
2a53cff4 BK	23	%rd 7:5
2a53cff4 BK	24
b73a987b	25	%sh10 20:10
771fbe15	26	%csr 20:12
6f0e74ff	27	%rm 12:3
b73a987b	28
2a53cff4	29	# immediates:
3cca75a6	30	%imm_i 20:s12
c1000d4e	31	%imm_s 25:s7 7:5
3cca75a6 BK	32	%imm_b 31:s1 7:1 25:6 8:4 !function=ex_shift_1
3cca75a6 BK	33	%imm_j 31:s1 12:8 20:1 21:10 !function=ex_shift_1
2a53cff4 BK	34	%imm_u 12:s20 !function=ex_shift_12
2a53cff4 BK	35
3cca75a6 BK	36	# Argument sets:
3cca75a6 BK	37	&b imm rs2 rs1
7a50d3e2	38	&i imm rs1 rd
f2ab1728	39	&r rd rs1 rs2
b73a987b	40	&shift shamt rs1 rd
3b77c289	41	&atomic aq rl rs2 rs1 rd
3cca75a6	42
2a53cff4	43	# Formats 32:
f2ab1728	44	@r ....... ..... ..... ... ..... ....... &r %rs2 %rs1 %rd
7a50d3e2	45	@i ............ ..... ... ..... ....... &i imm=%imm_i %rs1 %rd
3cca75a6	46	@b ....... ..... ..... ... ..... ....... &b imm=%imm_b %rs2 %rs1
c1000d4e	47	@s ....... ..... ..... ... ..... ....... imm=%imm_s %rs2 %rs1
2a53cff4	48	@u .................... ..... ....... imm=%imm_u %rd
3cca75a6	49	@j .................... ..... ....... imm=%imm_j %rd
2a53cff4	50
b73a987b	51	@sh ...... ...... ..... ... ..... ....... &shift shamt=%sh10 %rs1 %rd
771fbe15	52	@csr ............ ..... ... ..... ....... %csr %rs1 %rd
b73a987b	53
3b77c289 BK	54	@atom_ld ..... aq:1 rl:1 ..... ........ ..... ....... &atomic rs2=0 %rs1 %rd
	55	@atom_st ..... aq:1 rl:1 ..... ........ ..... ....... &atomic %rs2 %rs1 %rd
	56
6f0e74ff BK	57	@r4_rm ..... .. ..... ..... ... ..... ....... %rs3 %rs2 %rs1 %rm %rd
	58	@r_rm ....... ..... ..... ... ..... ....... %rs2 %rs1 %rm %rd
	59	@r2_rm ....... ..... ..... ... ..... ....... %rs1 %rm %rd
	60	@r2 ....... ..... ..... ... ..... ....... %rs1 %rd
	61
4ba79c47 BK	62	@sfence_vma ....... ..... ..... ... ..... ....... %rs2 %rs1
	63	@sfence_vm ....... ..... ..... ... ..... ....... %rs1
	64
	65
	66	# * Privileged Instructions *
	67	ecall 000000000000 00000 000 00000 1110011
	68	ebreak 000000000001 00000 000 00000 1110011
	69	uret 0000000 00010 00000 000 00000 1110011
	70	sret 0001000 00010 00000 000 00000 1110011
	71	hret 0010000 00010 00000 000 00000 1110011
	72	mret 0011000 00010 00000 000 00000 1110011
	73	wfi 0001000 00101 00000 000 00000 1110011
	74	sfence_vma 0001001 ..... ..... 000 00000 1110011 @sfence_vma
	75	sfence_vm 0001000 00100 ..... 000 00000 1110011 @sfence_vm
	76
2a53cff4 BK	77	# * RV32I Base Instruction Set *
	78	lui .................... ..... 0110111 @u
	79	auipc .................... ..... 0010111 @u
3cca75a6 BK	80	jal .................... ..... 1101111 @j
	81	jalr ............ ..... 000 ..... 1100111 @i
	82	beq ....... ..... ..... 000 ..... 1100011 @b
	83	bne ....... ..... ..... 001 ..... 1100011 @b
	84	blt ....... ..... ..... 100 ..... 1100011 @b
	85	bge ....... ..... ..... 101 ..... 1100011 @b
	86	bltu ....... ..... ..... 110 ..... 1100011 @b
	87	bgeu ....... ..... ..... 111 ..... 1100011 @b
c1000d4e BK	88	lb ............ ..... 000 ..... 0000011 @i
	89	lh ............ ..... 001 ..... 0000011 @i
	90	lw ............ ..... 010 ..... 0000011 @i
	91	lbu ............ ..... 100 ..... 0000011 @i
	92	lhu ............ ..... 101 ..... 0000011 @i
	93	sb ....... ..... ..... 000 ..... 0100011 @s
	94	sh ....... ..... ..... 001 ..... 0100011 @s
	95	sw ....... ..... ..... 010 ..... 0100011 @s
b73a987b BK	96	addi ............ ..... 000 ..... 0010011 @i
	97	slti ............ ..... 010 ..... 0010011 @i
	98	sltiu ............ ..... 011 ..... 0010011 @i
	99	xori ............ ..... 100 ..... 0010011 @i
	100	ori ............ ..... 110 ..... 0010011 @i
	101	andi ............ ..... 111 ..... 0010011 @i
	102	slli 00.... ...... ..... 001 ..... 0010011 @sh
	103	srli 00.... ...... ..... 101 ..... 0010011 @sh
	104	srai 01.... ...... ..... 101 ..... 0010011 @sh
	105	add 0000000 ..... ..... 000 ..... 0110011 @r
	106	sub 0100000 ..... ..... 000 ..... 0110011 @r
	107	sll 0000000 ..... ..... 001 ..... 0110011 @r
	108	slt 0000000 ..... ..... 010 ..... 0110011 @r
	109	sltu 0000000 ..... ..... 011 ..... 0110011 @r
	110	xor 0000000 ..... ..... 100 ..... 0110011 @r
	111	srl 0000000 ..... ..... 101 ..... 0110011 @r
	112	sra 0100000 ..... ..... 101 ..... 0110011 @r
	113	or 0000000 ..... ..... 110 ..... 0110011 @r
	114	and 0000000 ..... ..... 111 ..... 0110011 @r
0c865e85 BK	115	fence ---- pred:4 succ:4 ----- 000 ----- 0001111
0c865e85 BK	116	fence_i ---- ---- ---- ----- 001 ----- 0001111
771fbe15 BK	117	csrrw ............ ..... 001 ..... 1110011 @csr
	118	csrrs ............ ..... 010 ..... 1110011 @csr
	119	csrrc ............ ..... 011 ..... 1110011 @csr
	120	csrrwi ............ ..... 101 ..... 1110011 @csr
	121	csrrsi ............ ..... 110 ..... 1110011 @csr
	122	csrrci ............ ..... 111 ..... 1110011 @csr
d2e2c1e4 BK	123
	124	# * RV32M Standard Extension *
	125	mul 0000001 ..... ..... 000 ..... 0110011 @r
	126	mulh 0000001 ..... ..... 001 ..... 0110011 @r
	127	mulhsu 0000001 ..... ..... 010 ..... 0110011 @r
	128	mulhu 0000001 ..... ..... 011 ..... 0110011 @r
	129	div 0000001 ..... ..... 100 ..... 0110011 @r
	130	divu 0000001 ..... ..... 101 ..... 0110011 @r
	131	rem 0000001 ..... ..... 110 ..... 0110011 @r
	132	remu 0000001 ..... ..... 111 ..... 0110011 @r
3b77c289 BK	133
	134	# * RV32A Standard Extension *
	135	lr_w 00010 . . 00000 ..... 010 ..... 0101111 @atom_ld
	136	sc_w 00011 . . ..... ..... 010 ..... 0101111 @atom_st
	137	amoswap_w 00001 . . ..... ..... 010 ..... 0101111 @atom_st
	138	amoadd_w 00000 . . ..... ..... 010 ..... 0101111 @atom_st
	139	amoxor_w 00100 . . ..... ..... 010 ..... 0101111 @atom_st
	140	amoand_w 01100 . . ..... ..... 010 ..... 0101111 @atom_st
	141	amoor_w 01000 . . ..... ..... 010 ..... 0101111 @atom_st
	142	amomin_w 10000 . . ..... ..... 010 ..... 0101111 @atom_st
	143	amomax_w 10100 . . ..... ..... 010 ..... 0101111 @atom_st
	144	amominu_w 11000 . . ..... ..... 010 ..... 0101111 @atom_st
	145	amomaxu_w 11100 . . ..... ..... 010 ..... 0101111 @atom_st
6f0e74ff BK	146
	147	# * RV32F Standard Extension *
	148	flw ............ ..... 010 ..... 0000111 @i
	149	fsw ....... ..... ..... 010 ..... 0100111 @s
	150	fmadd_s ..... 00 ..... ..... ... ..... 1000011 @r4_rm
	151	fmsub_s ..... 00 ..... ..... ... ..... 1000111 @r4_rm
	152	fnmsub_s ..... 00 ..... ..... ... ..... 1001011 @r4_rm
	153	fnmadd_s ..... 00 ..... ..... ... ..... 1001111 @r4_rm
	154	fadd_s 0000000 ..... ..... ... ..... 1010011 @r_rm
	155	fsub_s 0000100 ..... ..... ... ..... 1010011 @r_rm
	156	fmul_s 0001000 ..... ..... ... ..... 1010011 @r_rm
	157	fdiv_s 0001100 ..... ..... ... ..... 1010011 @r_rm
	158	fsqrt_s 0101100 00000 ..... ... ..... 1010011 @r2_rm
	159	fsgnj_s 0010000 ..... ..... 000 ..... 1010011 @r
	160	fsgnjn_s 0010000 ..... ..... 001 ..... 1010011 @r
	161	fsgnjx_s 0010000 ..... ..... 010 ..... 1010011 @r
	162	fmin_s 0010100 ..... ..... 000 ..... 1010011 @r
	163	fmax_s 0010100 ..... ..... 001 ..... 1010011 @r
	164	fcvt_w_s 1100000 00000 ..... ... ..... 1010011 @r2_rm
	165	fcvt_wu_s 1100000 00001 ..... ... ..... 1010011 @r2_rm
	166	fmv_x_w 1110000 00000 ..... 000 ..... 1010011 @r2
	167	feq_s 1010000 ..... ..... 010 ..... 1010011 @r
	168	flt_s 1010000 ..... ..... 001 ..... 1010011 @r
	169	fle_s 1010000 ..... ..... 000 ..... 1010011 @r
	170	fclass_s 1110000 00000 ..... 001 ..... 1010011 @r2
	171	fcvt_s_w 1101000 00000 ..... ... ..... 1010011 @r2_rm
	172	fcvt_s_wu 1101000 00001 ..... ... ..... 1010011 @r2_rm
	173	fmv_w_x 1111000 00000 ..... 000 ..... 1010011 @r2
97f8b493 BK	174
	175	# * RV32D Standard Extension *
	176	fld ............ ..... 011 ..... 0000111 @i
	177	fsd ....... ..... ..... 011 ..... 0100111 @s
	178	fmadd_d ..... 01 ..... ..... ... ..... 1000011 @r4_rm
	179	fmsub_d ..... 01 ..... ..... ... ..... 1000111 @r4_rm
	180	fnmsub_d ..... 01 ..... ..... ... ..... 1001011 @r4_rm
	181	fnmadd_d ..... 01 ..... ..... ... ..... 1001111 @r4_rm
	182	fadd_d 0000001 ..... ..... ... ..... 1010011 @r_rm
	183	fsub_d 0000101 ..... ..... ... ..... 1010011 @r_rm
	184	fmul_d 0001001 ..... ..... ... ..... 1010011 @r_rm
	185	fdiv_d 0001101 ..... ..... ... ..... 1010011 @r_rm
	186	fsqrt_d 0101101 00000 ..... ... ..... 1010011 @r2_rm
	187	fsgnj_d 0010001 ..... ..... 000 ..... 1010011 @r
	188	fsgnjn_d 0010001 ..... ..... 001 ..... 1010011 @r
	189	fsgnjx_d 0010001 ..... ..... 010 ..... 1010011 @r
	190	fmin_d 0010101 ..... ..... 000 ..... 1010011 @r
	191	fmax_d 0010101 ..... ..... 001 ..... 1010011 @r
	192	fcvt_s_d 0100000 00001 ..... ... ..... 1010011 @r2_rm
	193	fcvt_d_s 0100001 00000 ..... ... ..... 1010011 @r2_rm
	194	feq_d 1010001 ..... ..... 010 ..... 1010011 @r
	195	flt_d 1010001 ..... ..... 001 ..... 1010011 @r
	196	fle_d 1010001 ..... ..... 000 ..... 1010011 @r
	197	fclass_d 1110001 00000 ..... 001 ..... 1010011 @r2
	198	fcvt_w_d 1100001 00000 ..... ... ..... 1010011 @r2_rm
	199	fcvt_wu_d 1100001 00001 ..... ... ..... 1010011 @r2_rm
	200	fcvt_d_w 1101001 00000 ..... ... ..... 1010011 @r2_rm
	201	fcvt_d_wu 1101001 00001 ..... ... ..... 1010011 @r2_rm