+
+
+type status_rec is record
+ zero : std_logic;
+ oflo : std_logic;
+ sign : std_logic;
+ 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_AC97_ADDR: ext_addrid_t := x"FFFFFFD";
+constant EXT_GPMP_ADDR: ext_addrid_t := x"FFFFFFF";
+
+component extension_gpm is
+ --some modules won't need all inputs/outputs
+ generic (
+ -- active reset value
+ RESET_VALUE : std_logic
+ );
+ port(
+ --System inputs
+ clk : in std_logic;
+ reset : in std_logic;
+ -- general extension interface
+ ext_reg : in extmod_rec;
+ data_out : out gp_register_t;
+ -- Input
+ psw_nxt : in status_rec;
+ paddr : in paddr_t;
+ pinc : in std_logic;
+ pwr_en : in std_logic;
+ -- Ouput
+ psw : out status_rec;
+ pval : out gp_register_t;
+ pval_nxt : out gp_register_t
+ );
+ end component extension_gpm;
+
+component extension_interrupt is
+ --some modules won't need all inputs/outputs
+ generic (
+ -- active reset value
+ RESET_VALUE : std_logic
+ );
+ port(
+ --System inputs
+ clk : in std_logic;
+ reset : in std_logic;
+ -- general extension interface
+ ext_reg : in extmod_rec;
+ data_out : out gp_register_t;
+ -- Input
+ uart_int : in std_logic;
+ -- Ouput
+ int_req : out interrupt_t
+ );
+ end component extension_interrupt;
+
+