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182 lines
6.1 KiB
VHDL
182 lines
6.1 KiB
VHDL
library ieee;
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use ieee.std_logic_1164.all;
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package insn_helpers is
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function insn_rs (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_rt (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_ra (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_rb (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_si (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_ui (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_l (insn_in : std_ulogic_vector) return std_ulogic;
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function insn_sh32 (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_mb32 (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_me32 (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_li (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_lk (insn_in : std_ulogic_vector) return std_ulogic;
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function insn_aa (insn_in : std_ulogic_vector) return std_ulogic;
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function insn_rc (insn_in : std_ulogic_vector) return std_ulogic;
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function insn_oe (insn_in : std_ulogic_vector) return std_ulogic;
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function insn_bd (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bf (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bfa (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_fxm (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bo (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bi (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bh (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_d (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_ds (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_to (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_bc (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_sh (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_me (insn_in : std_ulogic_vector) return std_ulogic_vector;
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function insn_mb (insn_in : std_ulogic_vector) return std_ulogic_vector;
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end package insn_helpers;
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package body insn_helpers is
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function insn_rs (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 21);
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end;
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function insn_rt (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 21);
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end;
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function insn_ra (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(20 downto 16);
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end;
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function insn_rb (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 11);
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end;
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function insn_si (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 0);
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end;
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function insn_ui (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 0);
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end;
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function insn_l (insn_in : std_ulogic_vector) return std_ulogic is
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begin
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return insn_in(21);
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end;
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function insn_sh32 (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 11);
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end;
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function insn_mb32 (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(10 downto 6);
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end;
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function insn_me32 (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(5 downto 1);
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end;
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function insn_li (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 2);
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end;
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function insn_lk (insn_in : std_ulogic_vector) return std_ulogic is
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begin
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return insn_in(0);
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end;
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function insn_aa (insn_in : std_ulogic_vector) return std_ulogic is
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begin
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return insn_in(1);
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end;
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function insn_rc (insn_in : std_ulogic_vector) return std_ulogic is
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begin
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return insn_in(0);
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end;
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function insn_oe (insn_in : std_ulogic_vector) return std_ulogic is
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begin
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return insn_in(10);
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end;
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function insn_bd (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 2);
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end;
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function insn_bf (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 23);
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end;
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function insn_bfa (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(20 downto 18);
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end;
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function insn_fxm (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(19 downto 12);
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end;
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function insn_bo (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 21);
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end;
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function insn_bi (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(20 downto 16);
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end;
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function insn_bh (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(12 downto 11);
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end;
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function insn_d (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 0);
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end;
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function insn_ds (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(15 downto 2);
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end;
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function insn_to (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(25 downto 21);
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end;
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function insn_bc (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(10 downto 6);
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end;
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function insn_sh (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(1) & insn_in(15 downto 11);
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end;
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function insn_me (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(5) & insn_in(10 downto 6);
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end;
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function insn_mb (insn_in : std_ulogic_vector) return std_ulogic_vector is
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begin
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return insn_in(5) & insn_in(10 downto 6);
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end;
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end package body insn_helpers;
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