use ieee.std_logic_1164.all;
package decode_types is
- type ppc_insn_t is (PPC_ILLEGAL, PPC_ADD, PPC_ADDC, PPC_ADDE,
- PPC_ADDEX, PPC_ADDI, PPC_ADDIC, PPC_ADDIC_RC, PPC_ADDIS,
- PPC_ADDME, PPC_ADDPCIS, PPC_ADDZE, PPC_AND, PPC_ANDC,
- PPC_ANDI_RC, PPC_ANDIS_RC, PPC_ATTN, PPC_B, PPC_BC,
- PPC_BCCTR, PPC_BCLR, PPC_BCTAR, PPC_BPERM,
- PPC_CMP, PPC_CMPB, PPC_CMPEQB, PPC_CMPI, PPC_CMPL, PPC_CMPLI,
- PPC_CMPRB, PPC_CNTLZD, PPC_CNTLZW, PPC_CNTTZD, PPC_CNTTZW,
- PPC_CRAND, PPC_CRANDC, PPC_CREQV, PPC_CRNAND, PPC_CRNOR,
- PPC_CROR, PPC_CRORC, PPC_CRXOR, PPC_DARN, PPC_DCBF, PPC_DCBST,
- PPC_DCBT, PPC_DCBTST, PPC_DCBZ, PPC_DIV,
- PPC_EQV, PPC_EXTSB, PPC_EXTSH, PPC_EXTSW,
- PPC_EXTSWSLI, PPC_ICBI, PPC_ICBT, PPC_ISEL, PPC_ISYNC,
- PPC_LBARX, PPC_LBZ, PPC_LBZU, PPC_LBZUX, PPC_LBZX, PPC_LD,
- PPC_LDARX, PPC_LDBRX, PPC_LDU, PPC_LDUX, PPC_LDX, PPC_LHA,
- PPC_LHARX, PPC_LHAU, PPC_LHAUX, PPC_LHAX, PPC_LHBRX, PPC_LHZ,
- PPC_LHZU, PPC_LHZUX, PPC_LHZX, PPC_LWA, PPC_LWARX, PPC_LWAUX,
- PPC_LWAX, PPC_LWBRX, PPC_LWZ, PPC_LWZU, PPC_LWZUX, PPC_LWZX,
- PPC_MADDHD, PPC_MADDHDU, PPC_MADDLD, PPC_MCRF, PPC_MCRXR,
- PPC_MCRXRX, PPC_MFCR, PPC_MFOCRF, PPC_MFSPR, PPC_MFTB,
- PPC_MOD, PPC_MTCRF,
- PPC_MFCTR, PPC_MTCTR, PPC_MFLR, PPC_MTLR, PPC_MTOCRF,
- PPC_MTSPR, PPC_MULHD, PPC_MULHDU, PPC_MULHW, PPC_MULHWU,
- PPC_MULLD, PPC_MULLI, PPC_MULLW, PPC_NAND, PPC_NEG, PPC_NOR, PPC_NOP,
- PPC_OR, PPC_ORC, PPC_ORI, PPC_ORIS, PPC_POPCNTB, PPC_POPCNTD,
- PPC_POPCNTW, PPC_PRTYD, PPC_PRTYW, PPC_RLDCL, PPC_RLDCR,
- PPC_RLDIC, PPC_RLDICL, PPC_RLDICR, PPC_RLDIMI, PPC_RLWIMI,
- PPC_RLWINM, PPC_RLWNM, PPC_SETB, PPC_SLD, PPC_SLW, PPC_SRAD,
- PPC_SRADI, PPC_SRAW, PPC_SRAWI, PPC_SRD, PPC_SRW, PPC_STB,
- PPC_STBCX, PPC_STBU, PPC_STBUX, PPC_STBX, PPC_STD, PPC_STDBRX,
- PPC_STDCX, PPC_STDU, PPC_STDUX, PPC_STDX, PPC_STH, PPC_STHBRX,
- PPC_STHCX, PPC_STHU, PPC_STHUX, PPC_STHX, PPC_STW, PPC_STWBRX,
- PPC_STWCX, PPC_STWU, PPC_STWUX, PPC_STWX, PPC_SUBF, PPC_SUBFC,
- PPC_SUBFE, PPC_SUBFIC, PPC_SUBFME, PPC_SUBFZE, PPC_SYNC, PPC_TD,
- PPC_TDI, PPC_TW, PPC_TWI, PPC_XOR, PPC_XORI, PPC_XORIS,
- PPC_SIM_CONFIG);
-
- type insn_type_t is (OP_ILLEGAL, OP_NOP, OP_ADD, OP_ADDE, OP_ADDEX, OP_ADDME,
- OP_ADDPCIS, OP_AND, OP_ANDC, OP_ATTN, OP_B, OP_BC,
- OP_BCCTR, OP_BCLR, OP_BCTAR, OP_BPERM, OP_CMP,
- OP_CMPB, OP_CMPEQB, OP_CMPL, OP_CMPRB,
- OP_CNTLZD, OP_CNTLZW, OP_CNTTZD, OP_CNTTZW, OP_CRAND,
- OP_CRANDC, OP_CREQV, OP_CRNAND, OP_CRNOR, OP_CROR, OP_CRORC,
- OP_CRXOR, OP_DARN, OP_DCBF, OP_DCBST, OP_DCBT, OP_DCBTST,
- OP_DCBZ, OP_DIV, OP_EQV, OP_EXTSB, OP_EXTSH,
- OP_EXTSW, OP_EXTSWSLI, OP_ICBI, OP_ICBT, OP_ISEL, OP_ISYNC,
- OP_LOAD, OP_STORE, OP_MADDHD, OP_MADDHDU, OP_MADDLD, OP_MCRF,
- OP_MCRXR, OP_MCRXRX, OP_MFCR, OP_MFOCRF, OP_MFSPR, OP_MOD,
- OP_MTCRF, OP_MTOCRF, OP_MTSPR, OP_MUL_L64,
- OP_MUL_H64, OP_MUL_H32, OP_NAND, OP_NEG, OP_NOR, OP_OR,
- OP_ORC, OP_POPCNTB, OP_POPCNTD, OP_POPCNTW, OP_PRTYD,
- OP_PRTYW, OP_RLDCL, OP_RLDCR, OP_RLDIC, OP_RLDICL, OP_RLDICR,
- OP_RLDIMI, OP_RLWIMI, OP_RLWINM, OP_RLWNM, OP_SETB, OP_SLD,
- OP_SLW, OP_SRAD, OP_SRADI, OP_SRAW, OP_SRAWI, OP_SRD, OP_SRW,
- OP_SUBF, OP_SUBFE, OP_SUBFME, OP_SYNC, OP_TD, OP_TDI, OP_TW,
- OP_TWI, OP_XOR, OP_SIM_CONFIG);
-
- type input_reg_a_t is (NONE, RA, RA_OR_ZERO, RS);
- type input_reg_b_t is (NONE, RB, RS, CONST_UI, CONST_SI, CONST_SI_HI, CONST_UI_HI, CONST_LI, CONST_BD, CONST_DS);
- type input_reg_c_t is (NONE, RS);
- type output_reg_a_t is (NONE, RT, RA);
- type constant_a_t is (NONE, SH, SH32, FXM, BO, BF, TOO, BC);
- type constant_b_t is (NONE, MB, ME, MB32, BI, L, BFA);
- type constant_c_t is (NONE, ME32, BH);
- type rc_t is (NONE, ONE, RC);
-
- constant SH_OFFSET : integer := 0;
- constant MB_OFFSET : integer := 1;
- constant ME_OFFSET : integer := 1;
- constant SH32_OFFSET : integer := 0;
- constant MB32_OFFSET : integer := 1;
- constant ME32_OFFSET : integer := 2;
-
- constant FXM_OFFSET : integer := 0;
-
- constant BO_OFFSET : integer := 0;
- constant BI_OFFSET : integer := 1;
- constant BH_OFFSET : integer := 2;
-
- constant BF_OFFSET : integer := 0;
- constant L_OFFSET : integer := 1;
-
- constant TOO_OFFSET : integer := 0;
-
- type unit_t is (NONE, ALU, LDST, MUL, DIV);
- type length_t is (NONE, is1B, is2B, is4B, is8B);
-
- type decode_rom_t is record
- unit : unit_t;
- insn_type : insn_type_t;
- input_reg_a : input_reg_a_t;
- input_reg_b : input_reg_b_t;
- input_reg_c : input_reg_c_t;
- output_reg_a : output_reg_a_t;
-
- const_a : constant_a_t;
- const_b : constant_b_t;
- const_c : constant_c_t;
-
- input_cr : std_ulogic;
- output_cr : std_ulogic;
-
- input_carry : std_ulogic;
- output_carry : std_ulogic;
-
- -- load/store signals
- length : length_t;
- byte_reverse : std_ulogic;
- sign_extend : std_ulogic;
- update : std_ulogic;
- reserve : std_ulogic;
-
- -- multiplier signals
- mul_32bit : std_ulogic;
- mul_signed : std_ulogic;
-
- rc : rc_t;
- lr : std_ulogic;
-
- sgl_pipe : std_ulogic;
- end record;
- constant decode_rom_init : decode_rom_t := (unit => NONE,
- insn_type => OP_ILLEGAL, input_reg_a => NONE,
- input_reg_b => NONE, input_reg_c => NONE,
- output_reg_a => NONE, const_a => NONE, const_b => NONE,
- const_c => NONE, input_cr => '0', output_cr => '0',
- input_carry => '0', output_carry => '0',
- length => NONE, byte_reverse => '0', sign_extend => '0',
- update => '0', reserve => '0', mul_32bit => '0',
- mul_signed => '0', rc => NONE, lr => '0', sgl_pipe => '0');
+ type insn_type_t is (OP_ILLEGAL, OP_NOP, OP_ADD,
+ OP_AND, OP_ATTN, OP_B, OP_BC, OP_BCREG,
+ OP_BPERM, OP_CMP, OP_CMPB, OP_CMPEQB, OP_CMPRB,
+ OP_CNTZ, OP_CROP,
+ OP_DARN, OP_DCBF, OP_DCBST, OP_DCBT, OP_DCBTST,
+ OP_DCBZ, OP_DIV, OP_DIVE, OP_EXTS, OP_EXTSWSLI,
+ OP_FPOP, OP_FPOP_I,
+ OP_ICBI, OP_ICBT, OP_ISEL, OP_ISYNC,
+ OP_LOAD, OP_STORE,
+ OP_MCRXRX, OP_MFCR, OP_MFMSR, OP_MFSPR, OP_MOD,
+ OP_MTCRF, OP_MTMSRD, OP_MTSPR, OP_MUL_L64,
+ OP_MUL_H64, OP_MUL_H32, OP_OR,
+ OP_POPCNT, OP_PRTY, OP_RFID,
+ OP_RLC, OP_RLCL, OP_RLCR, OP_SC, OP_SETB,
+ OP_SHL, OP_SHR,
+ OP_SYNC, OP_TLBIE, OP_TRAP,
+ OP_XOR,
+ OP_BCD, OP_ADDG6S,
+ OP_FETCH_FAILED
+ );
+ type input_reg_a_t is (NONE, RA, RA_OR_ZERO, SPR, CIA, FRA);
+ type input_reg_b_t is (NONE, RB, CONST_UI, CONST_SI, CONST_SI_HI, CONST_UI_HI, CONST_LI, CONST_BD,
+ CONST_DXHI4, CONST_DS, CONST_DQ, CONST_M1, CONST_SH, CONST_SH32, SPR, FRB);
+ type input_reg_c_t is (NONE, RS, RCR, FRC, FRS);
+ type output_reg_a_t is (NONE, RT, RA, SPR, FRT);
+ type rc_t is (NONE, ONE, RC);
+ type carry_in_t is (ZERO, CA, OV, ONE);
+
+ constant SH_OFFSET : integer := 0;
+ constant MB_OFFSET : integer := 1;
+ constant ME_OFFSET : integer := 1;
+ constant SH32_OFFSET : integer := 0;
+ constant MB32_OFFSET : integer := 1;
+ constant ME32_OFFSET : integer := 2;
+
+ constant FXM_OFFSET : integer := 0;
+
+ constant BO_OFFSET : integer := 0;
+ constant BI_OFFSET : integer := 1;
+ constant BH_OFFSET : integer := 2;
+
+ constant BF_OFFSET : integer := 0;
+ constant L_OFFSET : integer := 1;
+
+ constant TOO_OFFSET : integer := 0;
+
+ type unit_t is (NONE, ALU, LDST, FPU);
+ type facility_t is (NONE, FPU);
+ type length_t is (NONE, is1B, is2B, is4B, is8B);
+
+ type repeat_t is (NONE, -- instruction is not repeated
+ DRSE, -- double RS, endian twist
+ DRTE, -- double RT, endian twist
+ DUPD); -- update-form load
+
+ type decode_rom_t is record
+ unit : unit_t;
+ facility : facility_t;
+ insn_type : insn_type_t;
+ input_reg_a : input_reg_a_t;
+ input_reg_b : input_reg_b_t;
+ input_reg_c : input_reg_c_t;
+ output_reg_a : output_reg_a_t;
+
+ input_cr : std_ulogic;
+ output_cr : std_ulogic;
+
+ invert_a : std_ulogic;
+ invert_out : std_ulogic;
+ input_carry : carry_in_t;
+ output_carry : std_ulogic;
+
+ -- load/store signals
+ length : length_t;
+ byte_reverse : std_ulogic;
+ sign_extend : std_ulogic;
+ update : std_ulogic;
+ reserve : std_ulogic;
+
+ -- multiplier and ALU signals
+ is_32bit : std_ulogic;
+ is_signed : std_ulogic;
+
+ rc : rc_t;
+ lr : std_ulogic;
+
+ sgl_pipe : std_ulogic;
+ repeat : repeat_t;
+ end record;
+ constant decode_rom_init : decode_rom_t := (unit => NONE, facility => NONE,
+ insn_type => OP_ILLEGAL, input_reg_a => NONE,
+ input_reg_b => NONE, input_reg_c => NONE,
+ output_reg_a => NONE, input_cr => '0', output_cr => '0',
+ invert_a => '0', invert_out => '0', input_carry => ZERO, output_carry => '0',
+ length => NONE, byte_reverse => '0', sign_extend => '0',
+ update => '0', reserve => '0', is_32bit => '0',
+ is_signed => '0', rc => NONE, lr => '0', sgl_pipe => '0', repeat => NONE);
end decode_types;
projects / microwatt.git / blobdiff