URL
https://opencores.org/ocsvn/w11/w11/trunk
Subversion Repositories w11
[/] [w11/] [tags/] [w11a_V0.61/] [rtl/] [w11a/] [pdp11_core.vhd] - Rev 27
Go to most recent revision | Compare with Previous | Blame | View Log
-- $Id: pdp11_core.vhd 427 2011-11-19 21:04:11Z mueller $ -- -- Copyright 2006-2011 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de> -- -- This program is free software; you may redistribute and/or modify it under -- the terms of the GNU General Public License as published by the Free -- Software Foundation, either version 2, or at your option any later version. -- -- This program is distributed in the hope that it will be useful, but -- WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- for complete details. -- ------------------------------------------------------------------------------ -- Module Name: pdp11_core - syn -- Description: pdp11: full processor core -- -- Dependencies: pdp11_vmbox -- pdp11_dpath -- pdp11_decode -- pdp11_sequencer -- pdp11_irq -- pdp11_sys70 -- ibus/ib_sres_or_4 -- -- Test bench: tb/tb_pdp11core -- tb/tb_rlink_tba_pdp11core -- -- Target Devices: generic -- Tool versions: xst 8.2, 9.1, 9.2, 12.1, 13.1; ghdl 0.18-0.29 -- Revision History: -- Date Rev Version Comment -- 2011-11-18 427 1.3.1 now numeric_std clean -- 2010-06-13 305 1.3 add CP_ADDR in port; drop R_CPDIN, R_CPOUT; _vmbox -- CP_ADDR now from in port; dpath CP_DIN now from in -- port; out port CP_DOUT now from _dpath -- 2009-05-30 220 1.2.5 final removal of snoopers (were already commented) -- 2008-08-22 161 1.2.4 rename pdp11_ibres_ -> ib_sres_ -- 2008-04-25 138 1.2.3 BRESET: add for _vmbox, use for _irq -- 2008-04-19 137 1.2.2 add DM_STAT_(DP|VM|CO) port; added pdp11_sys70 -- 2008-03-02 121 1.2.1 remove snoopers -- 2008-02-17 117 1.2 add em_(mreq|sres) interface for memory -- 2008-01-20 112 1.1.3 add BRESET port (intbus reset), rename P->BRESET -- 2008-01-06 111 1.1.2 rename signal EI_ACK->EI_ACKM (master ack) -- 2008-01-01 109 1.1.1 _vmbox w/ IB_SRES_(CPU|EXT) -- 2007-12-30 107 1.1 use IB_MREQ/IB_SRES interface now; remove DMA port -- 2007-07-15 66 1.0.3 rename pdp11_top -> pdp11_core -- 2007-07-02 63 1.0.2 reordered ports on pdp11_top (by function, not i/o) -- 2007-06-14 56 1.0.1 Use slvtypes.all -- 2007-05-12 26 1.0 Initial version ------------------------------------------------------------------------------ library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; use work.slvtypes.all; use work.iblib.all; use work.pdp11.all; -- ---------------------------------------------------------------------------- entity pdp11_core is -- full processor core port ( CLK : in slbit; -- clock RESET : in slbit; -- reset CP_CNTL : in cp_cntl_type; -- console control port CP_ADDR : in cp_addr_type; -- console address port CP_DIN : in slv16; -- console data in CP_STAT : out cp_stat_type; -- console status port CP_DOUT : out slv16; -- console data out EI_PRI : in slv3; -- external interrupt priority EI_VECT : in slv9_2; -- external interrupt vector EI_ACKM : out slbit; -- external interrupt acknowledge EM_MREQ : out em_mreq_type; -- external memory: request EM_SRES : in em_sres_type; -- external memory: response BRESET : out slbit; -- ibus reset IB_MREQ_M : out ib_mreq_type; -- inbus master request (master) IB_SRES_M : in ib_sres_type; -- inbus slave response (master) DM_STAT_DP : out dm_stat_dp_type; -- debug and monitor status - dpath DM_STAT_VM : out dm_stat_vm_type; -- debug and monitor status - vmbox DM_STAT_CO : out dm_stat_co_type -- debug and monitor status - core ); end pdp11_core; architecture syn of pdp11_core is signal GRESET : slbit := '0'; signal CRESET : slbit := '0'; signal BRESET_L : slbit := '0'; signal SEQ_CRESET : slbit := '0'; signal SEQ_BRESET : slbit := '0'; signal VM_CNTL : vm_cntl_type := vm_cntl_init; signal VM_STAT : vm_stat_type := vm_stat_init; signal MMU_MONI : mmu_moni_type := mmu_moni_init; signal DP_CNTL : dpath_cntl_type := dpath_cntl_init; signal DP_STAT : dpath_stat_type := dpath_stat_init; signal DP_PSW : psw_type := psw_init; signal DP_PC : slv16 := (others=>'0'); signal DP_IREG : slv16 := (others=>'0'); signal VM_DIN : slv16 := (others=>'0'); signal VM_ADDR : slv16 := (others=>'0'); signal VM_DOUT : slv16 := (others=>'0'); signal ID_STAT : decode_stat_type := decode_stat_init; signal INT_PRI : slv3 := (others=>'0'); signal INT_VECT : slv9_2 := (others=>'0'); signal CP_STAT_L : cp_stat_type := cp_stat_init; signal INT_ACK : slbit := '0'; signal IB_SRES_DP : ib_sres_type := ib_sres_init; signal IB_SRES_SEQ : ib_sres_type := ib_sres_init; signal IB_SRES_IRQ : ib_sres_type := ib_sres_init; signal IB_SRES_SYS : ib_sres_type := ib_sres_init; signal IB_MREQ : ib_mreq_type := ib_mreq_init; -- ibus request (local) signal IB_SRES : ib_sres_type := ib_sres_init; -- ibus response (local) begin GRESET <= RESET; CRESET <= RESET or SEQ_CRESET; BRESET_L <= RESET or SEQ_CRESET or SEQ_BRESET; VMBOX : pdp11_vmbox port map ( CLK => CLK, GRESET => GRESET, CRESET => CRESET, BRESET => BRESET_L, CP_ADDR => CP_ADDR, VM_CNTL => VM_CNTL, VM_ADDR => VM_ADDR, VM_DIN => VM_DIN, VM_STAT => VM_STAT, VM_DOUT => VM_DOUT, EM_MREQ => EM_MREQ, EM_SRES => EM_SRES, MMU_MONI => MMU_MONI, IB_MREQ_M => IB_MREQ, IB_SRES_CPU => IB_SRES, IB_SRES_EXT => IB_SRES_M, DM_STAT_VM => DM_STAT_VM ); DPATH : pdp11_dpath port map ( CLK => CLK, CRESET => CRESET, CNTL => DP_CNTL, STAT => DP_STAT, CP_DIN => CP_DIN, CP_DOUT => CP_DOUT, PSWOUT => DP_PSW, PCOUT => DP_PC, IREG => DP_IREG, VM_ADDR => VM_ADDR, VM_DOUT => VM_DOUT, VM_DIN => VM_DIN, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_DP, DM_STAT_DP => DM_STAT_DP ); IDEC : pdp11_decode port map ( IREG => DP_IREG, STAT => ID_STAT ); SEQ : pdp11_sequencer port map ( CLK => CLK, GRESET => GRESET, PSW => DP_PSW, PC => DP_PC, IREG => DP_IREG, ID_STAT => ID_STAT, DP_STAT => DP_STAT, CP_CNTL => CP_CNTL, VM_STAT => VM_STAT, INT_PRI => INT_PRI, INT_VECT => INT_VECT, CRESET => SEQ_CRESET, BRESET => SEQ_BRESET, MMU_MONI => MMU_MONI, DP_CNTL => DP_CNTL, VM_CNTL => VM_CNTL, CP_STAT => CP_STAT_L, INT_ACK => INT_ACK, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_SEQ ); IRQ : pdp11_irq port map ( CLK => CLK, BRESET => BRESET_L, INT_ACK => INT_ACK, EI_PRI => EI_PRI, EI_VECT => EI_VECT, EI_ACKM => EI_ACKM, PRI => INT_PRI, VECT => INT_VECT, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_IRQ ); SYS70 : pdp11_sys70 port map ( CLK => CLK, CRESET => CRESET, IB_MREQ => IB_MREQ, IB_SRES => IB_SRES_SYS ); IB_SRES_OR : ib_sres_or_4 port map ( IB_SRES_1 => IB_SRES_DP, IB_SRES_2 => IB_SRES_SEQ, IB_SRES_3 => IB_SRES_IRQ, IB_SRES_4 => IB_SRES_SYS, IB_SRES_OR => IB_SRES ); IB_MREQ_M <= IB_MREQ; CP_STAT <= CP_STAT_L; BRESET <= BRESET_L; DM_STAT_CO.cpugo <= CP_STAT_L.cpugo; DM_STAT_CO.cpuhalt <= CP_STAT_L.cpuhalt; end syn;
Go to most recent revision | Compare with Previous | Blame | View Log