m8051.vhd

another 8051 core porocesssor vhdl source code

   end component;
   
   component m3s023bo
      port( SFRDAT : out std_logic_vector (7 downto 0);  FA : in 
            std_logic_vector (6 downto 0);  PORTA, PORTB, PORTC, PORTD, SP, DPL
            , DPH, PCON, TCON, TMOD, TLA, TLB, THA, THB, SCON, SBUF, IE, IP, 
            PSWDAT, ACCDAT, BREG, MSIZ : in std_logic_vector (7 downto 0));
   end component;
   
   component m3s025bo
      port( OPC : out std_logic_vector (7 downto 0);  OPLOAD : out std_logic;  
            IROMD : in std_logic_vector (7 downto 0);  STATD : in 
            std_logic_vector (1 downto 1);  PCON : in std_logic_vector (0 
            downto 0);  CLEAR, RST, DIV2CK, NX1, INTA, LCYC, DLM : in std_logic
            );
   end component;
   
   component m3s028bo
      port( SCON, SBUF : out std_logic_vector (7 downto 0);  RITI, RXDO, TXDO :
            out std_logic;  DI : in std_logic_vector (0 downto 0);  RAMDI : in 
            std_logic_vector (7 downto 0);  PCON : in std_logic_vector (7 
            downto 7);  SFRW : in std_logic_vector (11 downto 10);  LOV1, S_EN,
            T_EN, STATE12, DIV2CK1, NX1, NX2, CLEAR : in std_logic);
   end component;
   
   component m3s001bo
      port( STATD : out std_logic_vector (6 downto 1);  CYC : out 
            std_logic_vector (3 downto 1);  LCYC, DIV2CK1, DIV2CK2, S_EN, T_EN,
            STATE12 : out std_logic;  RST, GOCYC2, MULDIV, NX1, NX2 : in 
            std_logic;  PCON : in std_logic_vector (0 downto 0));
   end component;
   
   component NAND2_1
      port( Z : out std_logic;  A0, A1 : in std_logic);
   end component;
   
   component NOR2_1
      port( Z : out std_logic;  A0, A1 : in std_logic);
   end component;
   
   component BUF_4
      port( Z : out std_logic;  A : in std_logic);
   end component;
   
   component NOR2B1_1
      port( Z : out std_logic;  A0, A1 : in std_logic);
   end component;
   
   component OAI21_1
      port( Z : out std_logic;  A1, A2, B : in std_logic);
   end component;
   
   component NOR3_1
      port( Z : out std_logic;  A0, A1, A2 : in std_logic);
   end component;
   
   component INV_1
      port( Z : out std_logic;  A : in std_logic);
   end component;
   
   component MUXI21_1
      port( Z : out std_logic;  A0, A1, S : in std_logic);
   end component;
   
   component MUX21_1
      port( Z : out std_logic;  A0, A1, S : in std_logic);
   end component;
   
   component BUF_2
      port( Z : out std_logic;  A : in std_logic);
   end component;
   
   component OA21_1
      port( Z : out std_logic;  A1, A2, B : in std_logic);
   end component;
   
   component AND2_1
      port( Z : out std_logic;  A0, A1 : in std_logic);
   end component;
   
   component DFF_SB_1
      port( Q, QB : out std_logic;  D, CLK, SB : in std_logic);
   end component;
   
   component BUF_6
      port( Z : out std_logic;  A : in std_logic);
   end component;
   
   component DFFQ_4
      port( Q : out std_logic;  D, CLK : in std_logic);
   end component;
   
   component DFF_1
      port( Q, QB : out std_logic;  D, CLK : in std_logic);
   end component;
   
   component DFFQ_1
      port( Q : out std_logic;  D, CLK : in std_logic);
   end component;
   
   signal ALUDAT_7_port, ALUDAT_6_port, ALUDAT_2_port, CPRDDM_6_port, 
      ALUC_2_port, PCADD_4_port, SFRW_16_port, SFRDAT_4_port, 
      STACK_DATA_11_port, TCON_0_port, PORTC_1_port, OAI_3_port, FAb_4_port, 
      PROGRAM_COUNT_9_port, CPRDDM_2_port, ACC0, PSWC_2_port, ALUC_12_port, 
      LOGDI, JMPADPTR, OPC_1_port, IMMDAT_3_port, DPL_4_port, 
      PROGRAM_COUNT_0_port, IACK_3_port, SFRW_3_port, SBUF_6_port, 
      PSWDAT_7_port, PCONx7x, THA_1_port, MOEI, XOFFb, Mb_13_port, THB_2_port, 
      TLB_0_port, IP_2_port, TLA_3_port, ALUC_6_port, CODAT_1_port, 
      STATD_1_port, DPL_0_port, NMULAB, BIT_POSN_2_port, ALUC_16_port, 
      MOVX_2_port, SFRW_21_port, DIV2CK2, C_TRUE, SFRW_12_port, SFRDAT_0_port, 
      OAI_7_port, FAb_0_port, PORTC_5_port, STACK_DATA_15_port, TCON_4_port, 
      PCADD_9_port, STATD_5_port, IDLEb, PSWDAT_3_port, DLMR, PCONx3x, 
      TLB_4_port, TLA_7_port, THB_6_port, IP_6_port, THA_5_port, 
      BIT_POSN_0_port, DAAH, OPC_7_port, OPC_5_port, SFRW_7_port, 
      PROGRAM_COUNT_13_port, SBUF_2_port, SFRW_5_port, IMMDAT_7_port, 
      VECTOR_ADDR_4_port, LOV1, PROGRAM_COUNT_4_port, CYC_2_port, SBUF_0_port, 
      PROGRAM_COUNT_11_port, EXT_ROM, IMMDAT_5_port, PROGRAM_COUNT_6_port, 
      ALUC_14_port, SFRW_19_port, PSWDAT_1_port, LDLM87, TLB_6_port, IP_4_port,
      TLA_5_port, CPRDDM_4_port, CPRDDM_0_port, ALUC_4_port, PCADD_2_port, 
      SFRW_10_port, THB_4_port, THA_7_port, Mb_15_port, MOVX_0_port, 
      SFRDAT_2_port, OAI_5_port, FAb_2_port, PORTC_7_port, DPL_2_port, 
      TCON_6_port, ALUC_10_port, MULDIV, PSWDAT_5_port, PCONx5x, Mb_11_port, 
      THB_0_port, THA_3_port, TLB_2_port, TLA_1_port, IP_0_port, ALUC_9_port, 
      OPC_3_port, STATD_3_port, IMMDAT_1_port, PROGRAM_COUNT_15_port, 
      PROGRAM_COUNT_2_port, IACK_1_port, SFRW_1_port, VECTOR_ADDR_2_port, 
      SBUF_4_port, ALUC_0_port, S_EN, ACLDAT_5_port, PCADD_6_port, PSWC_0_port,
      DPL_6_port, MOVX_4_port, SFRW_8_port, STACK_DATA_13_port, TCON_2_port, 
      PORTC_3_port, SFRDAT_6_port, OAI_1_port, FAb_6_port, n_377, ADDR_11BIT, 
      SFRW_14_port, RDAT_3_port, TMOD_6_port, PORTD_0_port, Mb_3_port, 
      REGADD_5_port, DPH_6_port, MSIZ_1_port, TMPDAT_0_port, ACCDAT_5_port, 
      SPC_1_port, STACK_DATA_4_port, TMPADD_1_port, RAMDI_1_port, IROMD_2_port,
      SCON_2_port, ACCADD_4_port, BREG_5_port, SP_1_port, PORTA_4_port, 
      PORTB_7_port, IE_1_port, STACK_DATA_0_port, ALUDAT_5_port, ALUDAT_4_port,
      ACLDAT_8_port, ACLDAT_1_port, REGADD_1_port, MSIZ_5_port, OV, 
      TMPDAT_4_port, ACCADD_9_port, DPH_2_port, RXDO, DLMb, TMOD_2_port, 
      PORTD_4_port, Mb_7_port, RMW, RDAT_7_port, ACCADD_0_port, BREG_1_port, 
      IE_5_port, PORTA_0_port, PORTB_3_port, GOCYC2, ACCDAT_1_port, 
      REGADD_8_port, SP_5_port, SCON_6_port, JBC, IROMD_6_port, 
      STACK_DATA_9_port, TMPDAT_6_port, ACCDAT_3_port, PCADD_12_port, 
      RAMDI_5_port, SCON_4_port, IROMD_4_port, PCADD_10_port, RAMDI_7_port, 
      LCYC, PORTA_2_port, PORTB_1_port, ACCADD_2_port, BREG_3_port, IE_7_port, 
      REGADD_3_port, SP_7_port, TMOD_0_port, PORTD_6_port, Mb_5_port, 
      RDAT_5_port, STACK_DATA_2_port, ALUDAT_1_port, ALUDAT_0_port, 
      ACLDAT_7_port, ACLDAT_3_port, MSIZ_7_port, TMPDAT_2_port, ACCADD_6_port, 
      BREG_7_port, DPH_0_port, SP_3_port, STATE12, IE_3_port, ACCDAT_7_port, 
      SPC_3_port, PORTA_6_port, PORTB_5_port, Mb_8_port, TMPADD_3_port, 
      RAMDI_3_port, SCON_0_port, IROMD_0_port, DPH_4_port, MSIZ_3_port, BBIT, 
      REGADD_7_port, STACK_DATA_6_port, ACLDAT_6_port, TMPDAT_3_port, 
      ACCADD_7_port, BREG_6_port, RDAT_1_port, TMOD_4_port, PORTD_2_port, 
      Mb_1_port, CJNE, SP_2_port, Mb_9_port, PORTB_4_port, ACCDAT_6_port, 
      SPC_2_port, TMPADD_2_port, PORTA_7_port, IE_2_port, RAMDI_2_port, TXDO, 
      SCON_1_port, IROMD_1_port, MSIZ_2_port, T_EN, DLMSTQx0x, DAA, DPH_5_port,
      STACK_DATA_7_port, OPLOAD, REGADD_6_port, TMPDAT_7_port, ACCDAT_2_port, 
      RDAT_0_port, CLEAR, TMOD_5_port, IROMD_5_port, PORTD_3_port, Mb_0_port, 
      SCON_5_port, PCADD_11_port, RAMDI_6_port, RESINT, PORTA_3_port, IE_6_port
      , ACCADD_3_port, BREG_2_port, SP_6_port, PORTB_0_port, DIV2CK1, 
      RDAT_4_port, PORTD_7_port, Mb_4_port, TMOD_1_port, ACLDAT_2_port, 
      REGADD_2_port, STACK_DATA_3_port, REGADD_0_port, DPH_1_port, MSIZ_6_port,
      ALUDAT_3_port, ACLDAT_9_port, ACLDAT_0_port, PAR, STACK_DATA_1_port, 
      TMPDAT_5_port, ACCADD_8_port, DAAL, DPH_3_port, MSIZ_4_port, EITHER_RET, 
      PORTD_5_port, Mb_6_port, RDAT_6_port, TMOD_3_port, EXPMEM, PORTB_2_port, 
      IE_4_port, ACCDAT_0_port, NDIVAB, PORTA_1_port, ACCADD_1_port, 
      BREG_0_port, SP_4_port, STACK_DATA_8_port, SCON_7_port, REGADD_9_port, 
      IROMD_7_port, RAMDI_4_port, ACLDAT_4_port, RDAT_2_port, TMOD_7_port, 
      MSIZ_0_port, PORTD_1_port, Mb_2_port, DPH_7_port, STACK_DATA_5_port, INTA
      , CPRDDM_7_port, CPRDDM_5_port, ACO, TMPDAT_1_port, ACCDAT_4_port, 
      SPC_0_port, TMPADD_0_port, REGADD_4_port, RAMDI_0_port, IROMD_3_port, 
      SCON_3_port, ACCADD_5_port, BREG_4_port, REGADD_10_port, SP_0_port, 
      PORTA_5_port, ALUC_11_port, PCONx4x, THB_1_port, THA_2_port, PORTB_6_port
      , IE_0_port, Mb_10_port, ALUC_8_port, OPC_2_port, STATD_2_port, 
      PSWDAT_4_port, PROGRAM_COUNT_14_port, TLB_3_port, TLA_0_port, IP_1_port, 
      VECTOR_ADDR_3_port, IACK_0_port, IMMDAT_0_port, PROGRAM_COUNT_3_port, 
      SFRW_0_port, WEP, SBUF_5_port, ALUC_1_port, PSWC_1_port, SFRW_9_port, 
      DPL_7_port, CPRDDM_3_port, CPRDDM_1_port, BIT_POSN_1_port, ALUC_15_port, 
      PCADD_7_port, RETI, PORTC_2_port, STACK_DATA_12_port, TCON_3_port, IMMB3,
      SFRW_15_port, SFRDAT_7_port, OPC_6_port, SFRW_4_port, OAI_0_port, 
      FAb_7_port, IMMDAT_4_port, SBUF_1_port, PROGRAM_COUNT_10_port, 
      PROGRAM_COUNT_7_port, EXT_PROG_EN, SFRW_18_port, PSWDAT_0_port, 
      TLB_7_port, TLA_4_port, IP_5_port, ALUC_5_port, PCADD_3_port, 
      SFRW_11_port, STATD_6_port, SFRDAT_3_port, Mb_14_port, THB_5_port, 
      THA_6_port, OAI_4_port, FAb_3_port, MOVX_1_port, TCON_7_port, 
      PORTC_6_port, ALUC_7_port, CODAT_2_port, DPL_3_port, DLMSTB, CO, 
      CODAT_0_port, DPL_1_port, SFRDAT_1_port, OAI_6_port, FAb_1_port, 
      ALUC_17_port, PCADD_8_port, PCADD_1_port, SFRW_20_port, MOVX_3_port, 
      SFRW_13_port, STACK_DATA_14_port, TCON_5_port, PORTC_4_port, 
      PSWDAT_2_port, TLB_5_port, TLA_6_port, IP_7_port, ALUC_3_port, 
      PCADD_5_port, OPC_4_port, SFRW_6_port, STATD_4_port, PCONx2x, THA_4_port,
      THB_7_port, IMMDAT_6_port, CYC_3_port, SBUF_3_port, PROGRAM_COUNT_12_port
      , PROGRAM_COUNT_5_port, SFRW_17_port, STACK_DATA_10_port, TCON_1_port, 
      PORTC_0_port, PROGRAM_COUNT_8_port, SFRDAT_5_port, OAI_2_port, FAb_5_port
      , DPL_5_port, ALUC_13_port, OPC_0_port, IACK_2_port, RITI, DLMSTBI, 
      SFRW_2_port, IMMDAT_2_port, VECTOR_ADDR_1_port, PROGRAM_COUNT_1_port, 
      PCONx6x, THB_3_port, SBUF_7_port, THA_0_port, Mb_12_port, PSWDAT_6_port, 
      TLB_1_port, TLA_2_port, IP_3_port, n4030, n4031, NALENb, n4033, n4034, 
      n4035, n4036, n4037, n4038, n4039, n4040, n4041, n4042, n4043, n4044, 
      n4045, n4046, n4047, n4048, n4049, n4050, n4051, n4052, n4053, n4054, 
      n4055, n4056, n4057, n4058, n4059, n4060, n4061, n4062, n4063, n4064, 
      n4065, n4066, n4067, n4068, n4069, n4070, n4071, n4072, n4073, n4074,