2 # RISC-V translation routines for the RVXI Base Integer Instruction Set.
4 # Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de
5 # Bastian Koppelmann, kbastian@mail.uni-paderborn.de
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.
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
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/>.
21 %rs1_3 7:3 !function=ex_rvc_register
22 %rs2_3 2:3 !function=ex_rvc_register
27 %nzuimm_ciw 7:4 11:2 5:1 6:1 !function=ex_shift_2
28 %uimm_cl_d 5:2 10:3 !function=ex_shift_3
29 %uimm_cl_w 5:1 10:3 6:1 !function=ex_shift_2
30 %imm_cb 12:s1 5:2 2:1 10:2 3:2 !function=ex_shift_1
31 %imm_cj 12:s1 8:1 9:2 6:1 7:1 2:1 11:1 3:3 !function=ex_shift_1
34 %uimm_6bit_ld 2:3 12:1 5:2 !function=ex_shift_3
35 %uimm_6bit_lw 2:2 12:1 4:3 !function=ex_shift_2
36 %uimm_6bit_sd 7:3 10:3 !function=ex_shift_3
37 %uimm_6bit_sw 7:2 9:4 !function=ex_shift_2
39 %imm_addi16sp 12:s1 3:2 5:1 2:1 6:1 !function=ex_shift_4
40 %imm_lui 12:s1 2:5 !function=ex_shift_12
43 # Argument sets imported from insn32.decode:
47 &s imm rs1 rs2 !extern
49 &b imm rs2 rs1 !extern
51 &shift shamt rs1 rd !extern
66 &caddi16sp_lui imm_lui imm_addi16sp rd
67 &cflwsp_ldsp uimm_flwsp uimm_ldsp rd
68 &cfswsp_sdsp uimm_fswsp uimm_sdsp rs2
71 @cr .... ..... ..... .. &r rs2=%rs2_5 rs1=%rd %rd
72 @ci ... . ..... ..... .. &i imm=%imm_ci rs1=%rd %rd
73 @ciw ... ........ ... .. &ciw nzuimm=%nzuimm_ciw rd=%rs2_3
74 @cl_d ... ... ... .. ... .. &i imm=%uimm_cl_d rs1=%rs1_3 rd=%rs2_3
75 @cl_w ... ... ... .. ... .. &i imm=%uimm_cl_w rs1=%rs1_3 rd=%rs2_3
76 @cl ... ... ... .. ... .. &cl rs1=%rs1_3 rd=%rs2_3
77 @cs ... ... ... .. ... .. &cs rs1=%rs1_3 rs2=%rs2_3
78 @cs_2 ... ... ... .. ... .. &r rs2=%rs2_3 rs1=%rs1_3 rd=%rs1_3
79 @cs_d ... ... ... .. ... .. &s imm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3
80 @cs_w ... ... ... .. ... .. &s imm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3
81 @cj ... ........... .. &j imm=%imm_cj
82 @cb_z ... ... ... .. ... .. &b imm=%imm_cb rs1=%rs1_3 rs2=0
84 @c_ldsp ... . ..... ..... .. &i imm=%uimm_6bit_ld rs1=2 %rd
85 @c_lwsp ... . ..... ..... .. &i imm=%uimm_6bit_lw rs1=2 %rd
86 @c_sdsp ... . ..... ..... .. &s imm=%uimm_6bit_sd rs1=2 rs2=%rs2_5
87 @c_swsp ... . ..... ..... .. &s imm=%uimm_6bit_sw rs1=2 rs2=%rs2_5
88 @c_li ... . ..... ..... .. &i imm=%imm_ci rs1=0 %rd
90 @c_addi16sp_lui ... . ..... ..... .. &caddi16sp_lui %imm_lui %imm_addi16sp %rd
91 @c_flwsp_ldsp ... . ..... ..... .. &cflwsp_ldsp uimm_flwsp=%uimm_6bit_lw \
92 uimm_ldsp=%uimm_6bit_ld %rd
93 @c_fswsp_sdsp ... . ..... ..... .. &cfswsp_sdsp uimm_fswsp=%uimm_6bit_sw \
94 uimm_sdsp=%uimm_6bit_sd rs2=%rs2_5
96 @c_shift ... . .. ... ..... .. \
97 &shift rd=%rs1_3 rs1=%rs1_3 shamt=%nzuimm_6bit
98 @c_shift2 ... . .. ... ..... .. \
99 &shift rd=%rd rs1=%rd shamt=%nzuimm_6bit
101 @c_andi ... . .. ... ..... .. &i imm=%imm_ci rs1=%rs1_3 rd=%rs1_3
103 # *** RV64C Standard Extension (Quadrant 0) ***
104 c_addi4spn 000 ........ ... 00 @ciw
105 fld 001 ... ... .. ... 00 @cl_d
106 lw 010 ... ... .. ... 00 @cl_w
107 c_flw_ld 011 --- ... -- ... 00 @cl #Note: Must parse uimm manually
108 fsd 101 ... ... .. ... 00 @cs_d
109 sw 110 ... ... .. ... 00 @cs_w
110 c_fsw_sd 111 --- ... -- ... 00 @cs #Note: Must parse uimm manually
112 # *** RV64C Standard Extension (Quadrant 1) ***
113 addi 000 . ..... ..... 01 @ci
114 c_jal_addiw 001 . ..... ..... 01 @ci #Note: parse rd and/or imm manually
115 addi 010 . ..... ..... 01 @c_li
116 c_addi16sp_lui 011 . ..... ..... 01 @c_addi16sp_lui # shares opc with C.LUI
117 c_srli 100 . 00 ... ..... 01 @c_shift
118 c_srai 100 . 01 ... ..... 01 @c_shift
119 andi 100 . 10 ... ..... 01 @c_andi
120 sub 100 0 11 ... 00 ... 01 @cs_2
121 xor 100 0 11 ... 01 ... 01 @cs_2
122 or 100 0 11 ... 10 ... 01 @cs_2
123 and 100 0 11 ... 11 ... 01 @cs_2
124 c_subw 100 1 11 ... 00 ... 01 @cs_2
125 c_addw 100 1 11 ... 01 ... 01 @cs_2
126 jal 101 ........... 01 @cj rd=0 # C.J
127 beq 110 ... ... ..... 01 @cb_z
128 bne 111 ... ... ..... 01 @cb_z
130 # *** RV64C Standard Extension (Quadrant 2) ***
131 c_slli 000 . ..... ..... 10 @c_shift2
132 fld 001 . ..... ..... 10 @c_ldsp
133 lw 010 . ..... ..... 10 @c_lwsp
134 c_flwsp_ldsp 011 . ..... ..... 10 @c_flwsp_ldsp #C.LDSP:RV64;C.FLWSP:RV32
135 c_jr_mv 100 0 ..... ..... 10 @cr
136 c_ebreak_jalr_add 100 1 ..... ..... 10 @cr
137 fsd 101 ...... ..... 10 @c_sdsp
138 sw 110 . ..... ..... 10 @c_swsp
139 c_fswsp_sdsp 111 . ..... ..... 10 @c_fswsp_sdsp #C.SDSP:RV64;C.FSWSP:RV32