subtype word_t is std_logic_vector(WORD_WIDTH-1 downto 0);
subtype gp_register_t is word_t;
-
+
+ subtype byte_en_t is std_logic_vector((gp_register_t'length/byte_t'length-1) downto 0);
constant REG_ZERO : gp_register_t := (others => '0');
constant SUB_OPT : integer := 1;
constant ARITH_OPT : integer := 1;
+ constant HWORD_OPT : integer := 1;
+ constant PUSH_OPT : integer := 1;
constant CARRY_OPT : integer := 2;
+ constant BYTE_OPT : integer := 2;
constant RIGHT_OPT : integer := 3;
constant JMP_REG_OPT : integer := 3;
- constant ST_OPT : integer := 3;
+ constant ST_OPT : integer := 3; -- store opt
+ constant RET_OPT : integer := 3;
constant NO_PSW_OPT : integer := 4;--no sharing
constant NO_DST_OPT : integer := 5; --no sharing
- type op_info_t is (ADDSUB_OP,AND_OP,OR_OP, XOR_OP,SHIFT_OP, LDST_OP, JMP_OP, JMP_ST_OP);
+ type op_info_t is (ADDSUB_OP,AND_OP,OR_OP, XOR_OP,SHIFT_OP, LDST_OP, JMP_OP, JMP_ST_OP, STACK_OP);
subtype op_opt_t is std_logic_vector(NUM_OP_OPT_WIDTH-1 downto 0);
end record;
+
type read_through_write_rec is record
rtw_reg : gp_register_t;
dmem_write_en : std_logic; --ureg
hword : std_logic; --ureg
byte_s : std_logic;
+ byte_en : byte_en_t;
+ data : gp_register_t;
end record;
+ type exec2wb_rec is record
+ result : gp_register_t; --reg (alu result or jumpaddr)
+ result_addr : gp_addr_t; --reg
+ address : word_t; --ureg
+ ram_data : word_t; --ureg
+ alu_jmp : std_logic; --reg
+ br_pred : std_logic; --reg
+ write_en : std_logic; --reg (register file) bei jump 1 wenn addr in result
+ dmem_en : std_logic; --ureg (jump addr in mem or in address)
+ dmem_write_en : std_logic; --ureg
+ hword : std_logic; --ureg
+ byte_s : std_logic; --ureg
+ end record;
function inc(value : in std_logic_vector; constant by : in integer := 1) return std_logic_vector;
function log2c(constant value : in integer range 0 to integer'high) return integer;