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-- $Id: pdp11.vhd 569 2014-07-13 14:36:32Z mueller $
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-- $Id: pdp11.vhd 589 2014-08-30 12:43:16Z mueller $
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--
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--
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-- Copyright 2006-2014 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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-- Copyright 2006-2014 by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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--
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--
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-- This program is free software; you may redistribute and/or modify it under
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-- This program is free software; you may redistribute and/or modify it under
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-- the terms of the GNU General Public License as published by the Free
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-- the terms of the GNU General Public License as published by the Free
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-- Dependencies: -
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-- Dependencies: -
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-- Tool versions: xst 8.2-14.7; ghdl 0.18-0.31
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-- Tool versions: xst 8.2-14.7; ghdl 0.18-0.31
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--
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--
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-- Revision History:
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-- Revision History:
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-- Date Rev Version Comment
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-- Date Rev Version Comment
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-- 2014-08-28 588 1.5.1 use new rlink v4 iface and 4 bit STAT
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-- 2014-08-15 583 1.5 rb_mreq addr now 16 bit
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-- 2014-08-10: 581 1.4.10 add c_cc_f_* field defs for condition code array
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-- 2014-07-12 569 1.4.9 dpath_stat_type: merge div_zero+div_ovfl to div_quit
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-- 2014-07-12 569 1.4.9 dpath_stat_type: merge div_zero+div_ovfl to div_quit
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-- dpath_cntl_type: add munit_s_div_sr
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-- dpath_cntl_type: add munit_s_div_sr
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-- 2011-11-18 427 1.4.8 now numeric_std clean
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-- 2011-11-18 427 1.4.8 now numeric_std clean
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-- 2010-12-30 351 1.4.7 rename pdp11_core_rri->pdp11_core_rbus; use rblib
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-- 2010-12-30 351 1.4.7 rename pdp11_core_rri->pdp11_core_rbus; use rblib
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-- 2010-10-23 335 1.4.6 rename RRI_LAM->RB_LAM;
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-- 2010-10-23 335 1.4.6 rename RRI_LAM->RB_LAM;
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pri : slv3; -- processor priority
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pri : slv3; -- processor priority
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tflag : slbit; -- trace flag
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tflag : slbit; -- trace flag
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cc : slv4; -- condition codes (NZVC).
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cc : slv4; -- condition codes (NZVC).
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end record psw_type;
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end record psw_type;
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constant c_cc_f_n: integer := 3; -- condition code: n
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constant c_cc_f_z: integer := 2; -- condition code: z
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constant c_cc_f_v: integer := 1; -- condition code: v
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constant c_cc_f_c: integer := 0; -- condition code: c
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constant psw_init : psw_type := (
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constant psw_init : psw_type := (
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"00","00", -- cmode, pmode (=kernel)
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"00","00", -- cmode, pmode (=kernel)
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'0',"111",'0', -- rset, pri (=7), tflag
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'0',"111",'0', -- rset, pri (=7), tflag
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"0000" -- cc NZVC=0
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"0000" -- cc NZVC=0
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);
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);
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);
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);
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end component;
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end component;
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component pdp11_core_rbus is -- core to rbus interface
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component pdp11_core_rbus is -- core to rbus interface
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generic (
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generic (
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RB_ADDR_CORE : slv8 := slv(to_unsigned(2#00000000#,8));
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RB_ADDR_CORE : slv16 := slv(to_unsigned(2#0000000000000000#,16));
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RB_ADDR_IBUS : slv8 := slv(to_unsigned(2#10000000#,8)));
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RB_ADDR_IBUS : slv16 := slv(to_unsigned(2#0000000010000000#,16)));
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port (
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port (
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CLK : in slbit; -- clock
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CLK : in slbit; -- clock
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RESET : in slbit; -- reset
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RESET : in slbit; -- reset
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RB_MREQ : in rb_mreq_type; -- rbus: request
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RB_MREQ : in rb_mreq_type; -- rbus: request
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RB_SRES : out rb_sres_type; -- rbus: response
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RB_SRES : out rb_sres_type; -- rbus: response
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RB_STAT : out slv3; -- rbus: status flags
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RB_STAT : out slv4; -- rbus: status flags
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RB_LAM : out slbit; -- remote attention
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RB_LAM : out slbit; -- remote attention
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CPU_RESET : out slbit; -- cpu master reset
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CPU_RESET : out slbit; -- cpu master reset
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CP_CNTL : out cp_cntl_type; -- console control port
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CP_CNTL : out cp_cntl_type; -- console control port
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CP_ADDR : out cp_addr_type; -- console address port
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CP_ADDR : out cp_addr_type; -- console address port
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CP_DIN : out slv16; -- console data in
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CP_DIN : out slv16; -- console data in
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