diff options
Diffstat (limited to 'target/riscv/insn16.decode')
| -rw-r--r-- | target/riscv/insn16.decode | 35 |
1 files changed, 3 insertions, 32 deletions
diff --git a/target/riscv/insn16.decode b/target/riscv/insn16.decode index 3c79edf1c9..433c0e8c68 100644 --- a/target/riscv/insn16.decode +++ b/target/riscv/insn16.decode @@ -50,30 +50,12 @@ &u imm rd !extern &shift shamt rs1 rd !extern -# Argument sets: -&cl rs1 rd -&cl_dw uimm rs1 rd -&ciw nzuimm rd -&cs rs1 rs2 -&cs_dw uimm rs1 rs2 -&cb imm rs1 -&cr rd rs2 -&c_shift shamt rd - -&c_ld uimm rd -&c_sd uimm rs2 - -&caddi16sp_lui imm_lui imm_addi16sp rd -&cflwsp_ldsp uimm_flwsp uimm_ldsp rd -&cfswsp_sdsp uimm_fswsp uimm_sdsp rs2 # Formats 16: @cr .... ..... ..... .. &r rs2=%rs2_5 rs1=%rd %rd @ci ... . ..... ..... .. &i imm=%imm_ci rs1=%rd %rd @cl_d ... ... ... .. ... .. &i imm=%uimm_cl_d rs1=%rs1_3 rd=%rs2_3 @cl_w ... ... ... .. ... .. &i imm=%uimm_cl_w rs1=%rs1_3 rd=%rs2_3 -@cl ... ... ... .. ... .. &cl rs1=%rs1_3 rd=%rs2_3 -@cs ... ... ... .. ... .. &cs rs1=%rs1_3 rs2=%rs2_3 @cs_2 ... ... ... .. ... .. &r rs2=%rs2_3 rs1=%rs1_3 rd=%rs1_3 @cs_d ... ... ... .. ... .. &s imm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3 @cs_w ... ... ... .. ... .. &s imm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3 @@ -91,10 +73,6 @@ @c_addi4spn ... . ..... ..... .. &i imm=%nzuimm_ciw rs1=2 rd=%rs2_3 @c_addi16sp ... . ..... ..... .. &i imm=%imm_addi16sp rs1=2 rd=2 -@c_flwsp_ldsp ... . ..... ..... .. &cflwsp_ldsp uimm_flwsp=%uimm_6bit_lw \ - uimm_ldsp=%uimm_6bit_ld %rd -@c_fswsp_sdsp ... . ..... ..... .. &cfswsp_sdsp uimm_fswsp=%uimm_6bit_sw \ - uimm_sdsp=%uimm_6bit_sd rs2=%rs2_5 @c_shift ... . .. ... ..... .. \ &shift rd=%rs1_3 rs1=%rs1_3 shamt=%shimm_6bit @@ -103,7 +81,7 @@ @c_andi ... . .. ... ..... .. &i imm=%imm_ci rs1=%rs1_3 rd=%rs1_3 -# *** RV64C Standard Extension (Quadrant 0) *** +# *** RV32/64C Standard Extension (Quadrant 0) *** { # Opcode of all zeros is illegal; rd != 0, nzuimm == 0 is reserved. illegal 000 000 000 00 --- 00 @@ -111,14 +89,11 @@ } fld 001 ... ... .. ... 00 @cl_d lw 010 ... ... .. ... 00 @cl_w -c_flw_ld 011 --- ... -- ... 00 @cl #Note: Must parse uimm manually fsd 101 ... ... .. ... 00 @cs_d sw 110 ... ... .. ... 00 @cs_w -c_fsw_sd 111 --- ... -- ... 00 @cs #Note: Must parse uimm manually -# *** RV64C Standard Extension (Quadrant 1) *** +# *** RV32/64C Standard Extension (Quadrant 1) *** addi 000 . ..... ..... 01 @ci -c_jal_addiw 001 . ..... ..... 01 @ci #Note: parse rd and/or imm manually addi 010 . ..... ..... 01 @c_li { addi 011 . 00010 ..... 01 @c_addi16sp @@ -131,17 +106,14 @@ sub 100 0 11 ... 00 ... 01 @cs_2 xor 100 0 11 ... 01 ... 01 @cs_2 or 100 0 11 ... 10 ... 01 @cs_2 and 100 0 11 ... 11 ... 01 @cs_2 -c_subw 100 1 11 ... 00 ... 01 @cs_2 -c_addw 100 1 11 ... 01 ... 01 @cs_2 jal 101 ........... 01 @cj rd=0 # C.J beq 110 ... ... ..... 01 @cb_z bne 111 ... ... ..... 01 @cb_z -# *** RV64C Standard Extension (Quadrant 2) *** +# *** RV32/64C Standard Extension (Quadrant 2) *** slli 000 . ..... ..... 10 @c_shift2 fld 001 . ..... ..... 10 @c_ldsp lw 010 . ..... ..... 10 @c_lwsp -c_flwsp_ldsp 011 . ..... ..... 10 @c_flwsp_ldsp #C.LDSP:RV64;C.FLWSP:RV32 { jalr 100 0 ..... 00000 10 @c_jalr rd=0 # C.JR addi 100 0 ..... ..... 10 @c_mv @@ -153,4 +125,3 @@ c_flwsp_ldsp 011 . ..... ..... 10 @c_flwsp_ldsp #C.LDSP:RV64;C.FLWSP:RV32 } fsd 101 ...... ..... 10 @c_sdsp sw 110 . ..... ..... 10 @c_swsp -c_fswsp_sdsp 111 . ..... ..... 10 @c_fswsp_sdsp #C.SDSP:RV64;C.FSWSP:RV32 |