modified: first approach to pointers. not finished, alu missing etc.

[calu.git] / cpu / src / alu_pkg.vhd

diff --git a/cpu/src/alu_pkg.vhd b/cpu/src/alu_pkg.vhd
index bb15c6a27324f08d92721a6f1479fd863aa971e0..7a9564e913149c6f0b4c25a407f75234b3d5c5df 100755 (executable)
--- a/cpu/src/alu_pkg.vhd
+++ b/cpu/src/alu_pkg.vhd
@@ -15,6 +15,10 @@ package alu_pkg is
                sign : std_logic;
                carry : std_logic;
        end record;
+
+       constant PADDR_WIDTH : integer := 2; 
+       type pointers_t is array(0 to 2**PADDR_WIDTH-1) of gp_register_t;
+       subtype paddr_t is std_logic_vector(PADDR_WIDTH-1 downto 0);
        
        subtype status_t is byte_t;
        --type alu_interal_rec is record
@@ -26,14 +30,12 @@ package alu_pkg is
                result_addr : gp_addr_t;
                
                status : status_rec;
-               --stackpointer : gp_register_t;
 
                alu_jump : std_logic;
                brpr : std_logic;
                reg_op : std_logic;
                mem_op  : std_logic;
                
-               --new_val : std_logic;
                mem_en : std_logic;
                
                hw_op   : std_logic;