tx79.decode (2959B)
1 # Toshiba C790's instruction set 2 # 3 # Copyright (C) 2021 Philippe Mathieu-Daudé 4 # 5 # SPDX-License-Identifier: LGPL-2.1-or-later 6 # 7 # Toshiba Appendix B C790-Specific Instruction Set Details 8 9 ########################################################################### 10 # Named attribute sets. These are used to make nice(er) names 11 # when creating helpers common to those for the individual 12 # instruction patterns. 13 14 &r rs rt rd sa 15 16 &i base rt offset 17 18 ########################################################################### 19 # Named instruction formats. These are generally used to 20 # reduce the amount of duplication between instruction patterns. 21 22 @rs_rt_rd ...... rs:5 rt:5 rd:5 ..... ...... &r sa=0 23 @rt_rd ...... ..... rt:5 rd:5 ..... ...... &r sa=0 rs=0 24 @rs ...... rs:5 ..... .......... ...... &r sa=0 rt=0 rd=0 25 @rd ...... .......... rd:5 ..... ...... &r sa=0 rs=0 rt=0 26 27 @ldst ...... base:5 rt:5 offset:16 &i 28 29 ########################################################################### 30 31 MFHI1 011100 0000000000 ..... 00000 010000 @rd 32 MTHI1 011100 ..... 0000000000 00000 010001 @rs 33 MFLO1 011100 0000000000 ..... 00000 010010 @rd 34 MTLO1 011100 ..... 0000000000 00000 010011 @rs 35 36 # MMI0 37 38 PSUBW 011100 ..... ..... ..... 00001 001000 @rs_rt_rd 39 PCGTW 011100 ..... ..... ..... 00010 001000 @rs_rt_rd 40 PSUBH 011100 ..... ..... ..... 00101 001000 @rs_rt_rd 41 PCGTH 011100 ..... ..... ..... 00110 001000 @rs_rt_rd 42 PSUBB 011100 ..... ..... ..... 01001 001000 @rs_rt_rd 43 PCGTB 011100 ..... ..... ..... 01010 001000 @rs_rt_rd 44 PEXTLW 011100 ..... ..... ..... 10010 001000 @rs_rt_rd 45 PPACW 011100 ..... ..... ..... 10011 001000 @rs_rt_rd 46 PEXTLH 011100 ..... ..... ..... 10110 001000 @rs_rt_rd 47 PEXTLB 011100 ..... ..... ..... 11010 001000 @rs_rt_rd 48 49 # MMI1 50 51 PCEQW 011100 ..... ..... ..... 00010 101000 @rs_rt_rd 52 PCEQH 011100 ..... ..... ..... 00110 101000 @rs_rt_rd 53 PCEQB 011100 ..... ..... ..... 01010 101000 @rs_rt_rd 54 PEXTUW 011100 ..... ..... ..... 10010 101000 @rs_rt_rd 55 56 # MMI2 57 58 PCPYLD 011100 ..... ..... ..... 01110 001001 @rs_rt_rd 59 PAND 011100 ..... ..... ..... 10010 001001 @rs_rt_rd 60 PXOR 011100 ..... ..... ..... 10011 001001 @rs_rt_rd 61 PROT3W 011100 00000 ..... ..... 11111 001001 @rt_rd 62 63 # MMI3 64 65 PCPYUD 011100 ..... ..... ..... 01110 101001 @rs_rt_rd 66 POR 011100 ..... ..... ..... 10010 101001 @rs_rt_rd 67 PNOR 011100 ..... ..... ..... 10011 101001 @rs_rt_rd 68 PCPYH 011100 00000 ..... ..... 11011 101001 @rt_rd 69 70 # SPECIAL 71 72 LQ 011110 ..... ..... ................ @ldst 73 SQ 011111 ..... ..... ................ @ldst