| Line 1... |
Line 1... |
-- $Id: pdp11.vhd 589 2014-08-30 12:43:16Z mueller $
|
-- $Id: pdp11.vhd 621 2014-12-26 21:20:05Z mueller $
|
--
|
--
|
-- Copyright 2006-2014 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
|
-- Copyright 2006-2014 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
|
--
|
--
|
-- This program is free software; you may redistribute and/or modify it under
|
-- 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
|
-- the terms of the GNU General Public License as published by the Free
|
| Line 560... |
Line 560... |
(others=>'0') -- cpurust
|
(others=>'0') -- cpurust
|
);
|
);
|
|
|
type cp_addr_type is record -- control port address
|
type cp_addr_type is record -- control port address
|
addr : slv22_1; -- address
|
addr : slv22_1; -- address
|
racc : slbit; -- ibr access
|
racc : slbit; -- ibus remote access
|
be : slv2; -- byte enables
|
be : slv2; -- byte enables
|
ena_22bit : slbit; -- enable 22 bit mode
|
ena_22bit : slbit; -- enable 22 bit mode
|
ena_ubmap : slbit; -- enable unibus mapper
|
ena_ubmap : slbit; -- enable unibus mapper
|
end record cp_addr_type;
|
end record cp_addr_type;
|
|
|
| Line 648... |
Line 648... |
constant c_rbaddr_r4 : slv5 := "01100"; -- R/W gpr 4
|
constant c_rbaddr_r4 : slv5 := "01100"; -- R/W gpr 4
|
constant c_rbaddr_r5 : slv5 := "01101"; -- R/W gpr 5
|
constant c_rbaddr_r5 : slv5 := "01101"; -- R/W gpr 5
|
constant c_rbaddr_sp : slv5 := "01110"; -- R/W gpr 6 (sp)
|
constant c_rbaddr_sp : slv5 := "01110"; -- R/W gpr 6 (sp)
|
constant c_rbaddr_pc : slv5 := "01111"; -- R/W gpr 7 (pc)
|
constant c_rbaddr_pc : slv5 := "01111"; -- R/W gpr 7 (pc)
|
|
|
constant c_rbaddr_ibrb : slv5 := "10000"; -- R/W ibr base address
|
constant c_rbaddr_membe: slv5 := "10000"; -- R/W memory write byte enables
|
|
|
subtype c_al_rbf_addr is integer range 15 downto 1; -- al: address
|
subtype c_al_rbf_addr is integer range 15 downto 1; -- al: address
|
constant c_ah_rbf_ena_ubmap: integer := 7; -- ah: ubmap
|
constant c_ah_rbf_ena_ubmap: integer := 7; -- ah: ubmap
|
constant c_ah_rbf_ena_22bit: integer := 6; -- ah: 22bit
|
constant c_ah_rbf_ena_22bit: integer := 6; -- ah: 22bit
|
subtype c_ah_rbf_addr is integer range 5 downto 0; -- ah: address
|
subtype c_ah_rbf_addr is integer range 5 downto 0; -- ah: address
|
| Line 661... |
Line 661... |
constant c_stat_rbf_cmdmerr: integer := 1; -- stat field: cmdmerr
|
constant c_stat_rbf_cmdmerr: integer := 1; -- stat field: cmdmerr
|
constant c_stat_rbf_cpugo: integer := 2; -- stat field: cpugo
|
constant c_stat_rbf_cpugo: integer := 2; -- stat field: cpugo
|
constant c_stat_rbf_cpuhalt: integer := 3; -- stat field: cpuhalt
|
constant c_stat_rbf_cpuhalt: integer := 3; -- stat field: cpuhalt
|
subtype c_stat_rbf_cpurust is integer range 7 downto 4; -- cpurust
|
subtype c_stat_rbf_cpurust is integer range 7 downto 4; -- cpurust
|
|
|
subtype c_ibrb_ibf_base is integer range 12 downto 6; -- ibrb: base addr
|
subtype c_membe_rbf_be is integer range 1 downto 0; -- membe: be's
|
subtype c_ibrb_ibf_be is integer range 1 downto 0; -- ibrb: be's
|
constant c_membe_rbf_stick: integer := 2; -- membe: sticky flag
|
|
|
-- -------------------------------------
|
-- -------------------------------------
|
|
|
component pdp11_gpr is -- general purpose registers
|
component pdp11_gpr is -- general purpose registers
|
port (
|
port (
|
| Line 1080... |
Line 1080... |
);
|
);
|
end component;
|
end component;
|
|
|
component pdp11_core_rbus is -- core to rbus interface
|
component pdp11_core_rbus is -- core to rbus interface
|
generic (
|
generic (
|
RB_ADDR_CORE : slv16 := slv(to_unsigned(2#0000000000000000#,16));
|
RB_ADDR_CORE : slv16 := slv(to_unsigned(16#0000#,16));
|
RB_ADDR_IBUS : slv16 := slv(to_unsigned(2#0000000010000000#,16)));
|
RB_ADDR_IBUS : slv16 := slv(to_unsigned(16#4000#,16)));
|
port (
|
port (
|
CLK : in slbit; -- clock
|
CLK : in slbit; -- clock
|
RESET : in slbit; -- reset
|
RESET : in slbit; -- reset
|
RB_MREQ : in rb_mreq_type; -- rbus: request
|
RB_MREQ : in rb_mreq_type; -- rbus: request
|
RB_SRES : out rb_sres_type; -- rbus: response
|
RB_SRES : out rb_sres_type; -- rbus: response
|
