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60 lines
2.5 KiB
Plaintext
60 lines
2.5 KiB
Plaintext
#
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# RISC-V translation routines for the RVXI Base Integer Instruction Set.
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#
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# Copyright (c) 2018 Peer Adelt, peer.adelt@hni.uni-paderborn.de
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# Bastian Koppelmann, kbastian@mail.uni-paderborn.de
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms and conditions of the GNU General Public License,
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# version 2 or later, as published by the Free Software Foundation.
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#
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# This program is distributed in the hope it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program. If not, see <http://www.gnu.org/licenses/>.
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# Fields:
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%rs2 20:5
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%rs1 15:5
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%rd 7:5
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# immediates:
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%imm_i 20:s12
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%imm_s 25:s7 7:5
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%imm_b 31:s1 7:1 25:6 8:4 !function=ex_shift_1
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%imm_j 31:s1 12:8 20:1 21:10 !function=ex_shift_1
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%imm_u 12:s20 !function=ex_shift_12
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# Argument sets:
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&b imm rs2 rs1
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# Formats 32:
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@i ............ ..... ... ..... ....... imm=%imm_i %rs1 %rd
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@b ....... ..... ..... ... ..... ....... &b imm=%imm_b %rs2 %rs1
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@s ....... ..... ..... ... ..... ....... imm=%imm_s %rs2 %rs1
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@u .................... ..... ....... imm=%imm_u %rd
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@j .................... ..... ....... imm=%imm_j %rd
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# *** RV32I Base Instruction Set ***
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lui .................... ..... 0110111 @u
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auipc .................... ..... 0010111 @u
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jal .................... ..... 1101111 @j
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jalr ............ ..... 000 ..... 1100111 @i
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beq ....... ..... ..... 000 ..... 1100011 @b
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bne ....... ..... ..... 001 ..... 1100011 @b
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blt ....... ..... ..... 100 ..... 1100011 @b
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bge ....... ..... ..... 101 ..... 1100011 @b
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bltu ....... ..... ..... 110 ..... 1100011 @b
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bgeu ....... ..... ..... 111 ..... 1100011 @b
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lb ............ ..... 000 ..... 0000011 @i
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lh ............ ..... 001 ..... 0000011 @i
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lw ............ ..... 010 ..... 0000011 @i
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lbu ............ ..... 100 ..... 0000011 @i
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lhu ............ ..... 101 ..... 0000011 @i
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sb ....... ..... ..... 000 ..... 0100011 @s
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sh ....... ..... ..... 001 ..... 0100011 @s
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sw ....... ..... ..... 010 ..... 0100011 @s
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