2 use ieee.std_logic_1164.all;
3 use ieee.numeric_std.all;
7 use work.crhelpers.all;
8 use work.ppc_fx_insns.all;
11 -- We handle rc form instructions here
17 e_in : in Execute1ToExecute2Type;
18 e_out : out Execute2ToWritebackType
22 architecture behave of execute2 is
23 signal r, rin : Execute2ToWritebackType;
25 execute2_0: process(clk)
27 if rising_edge(clk) then
32 execute2_1: process(all)
33 variable v : Execute2ToWritebackType;
37 v.valid := e_in.valid;
38 v.write_enable := e_in.write_enable;
39 v.write_reg := e_in.write_reg;
40 v.write_data := e_in.write_data;
41 v.write_cr_enable := e_in.write_cr_enable;
42 v.write_cr_mask := e_in.write_cr_mask;
43 v.write_cr_data := e_in.write_cr_data;
45 if e_in.valid = '1' and e_in.rc = '1' then
46 v.write_cr_enable := '1';
47 v.write_cr_mask := num_to_fxm(0);
48 v.write_cr_data := ppc_cmpi('1', e_in.write_data, x"0000") & x"0000000";