timer: added as extension modul

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

diff --git a/cpu/src/extension_pkg.vhd b/cpu/src/extension_pkg.vhd
index 907628385986da88e732f5702701db725f0264ec..f20a119af697a134d0e9484e4067fc00a1b4d554 100644 (file)
--- a/cpu/src/extension_pkg.vhd
+++ b/cpu/src/extension_pkg.vhd
@@ -34,15 +34,16 @@ type status_rec is record
                carry : std_logic;
 end record;
 
+procedure put_word_be (tmp : out gp_register_t; signal reg : in gp_register_t; signal byte_en : byte_en_t);
 
 -- Addressen der bis jetzt vorhanden extensions
 constant EXT_UART_ADDR:   ext_addrid_t := x"0000200";
 constant EXT_7SEG_ADDR:   ext_addrid_t := x"0000201";
 constant EXT_INT_ADDR:   ext_addrid_t := x"0000202";
 constant EXT_IMP_ADDR:   ext_addrid_t := x"0000203";
+constant EXT_TIMER_ADDR:  ext_addrid_t := x"0000204";
 -- dummy addressen
 constant EXT_EXTMEM_ADDR: ext_addrid_t := x"FFFFFFB";
-constant EXT_TIMER_ADDR:  ext_addrid_t := x"FFFFFFC";
 constant EXT_AC97_ADDR:   ext_addrid_t := x"FFFFFFD";
 constant EXT_GPMP_ADDR:    ext_addrid_t := x"FFFFFFF";
 
@@ -93,3 +94,14 @@ component extension_interrupt is
 
 
 end package extension_pkg;
+
+package body extension_pkg is
+       procedure put_word_be (tmp : out gp_register_t; signal reg : in gp_register_t; signal byte_en : byte_en_t) is
+       begin
+               for i in 0 to 3 loop
+                       if byte_en(i) = '1' then
+                               tmp(((i+1)*byte_t'length-1) downto i*byte_t'length) := reg(((i+1)*byte_t'length-1) downto i*byte_t'length);
+                       end if;
+               end loop;
+       end;
+end package body extension_pkg;