erster versuch das ganze mal zu flashen -> es blinkt!!111

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

diff --git a/cpu/src/r_w_ram_b.vhd b/cpu/src/r_w_ram_b.vhd
index c995c109237913861106a9c3020ac2f45dfba914..5ba03c0edc558b0a89dfcb2c898589521f8ebb73 100644 (file)
--- a/cpu/src/r_w_ram_b.vhd
+++ b/cpu/src/r_w_ram_b.vhd
@@ -13,16 +13,6 @@ architecture behaviour of r_w_ram is
                                                                        -- r0 = 0, r1 = 1, r2 = 3, r3 = A
 
        signal ram : RAM_TYPE := (
-
-
-                       0 => "11101101000000000000000001011000", -- r0 = 11
-                       1 => "11101101000010000000000000111000", -- r1 = 7
-                       2 => "11100111100010000000000000000000", --stw
-                       3 => "11101101000000000000000000011000", -- r0 = 3
-                       4 => "11101101000010000000000001001000", -- r1 = 9
-                       5 => "11100111000010000000000000000000", --ldw
-                       6 => "11101101000000000000000000011000", -- r0 = 3
-                       7 => "11101101000010000000000001001000", -- r1 = 9
                        --8 => "11100111100010000000000000000000", --stw
 --     0 => "11101101000000000000000000000000",        --ldi
 --     1 => "11101101001000000000000000000000",        --ldi
@@ -133,7 +123,13 @@ begin
        process(clk)
        begin
                if rising_edge(clk) then
-                       data_out <= ram(to_integer(UNSIGNED(rd_addr)));
+                       -- data_out <= ram(to_integer(UNSIGNED(rd_addr)));
+                       case rd_addr is
+                               when "00000000000" => data_out <= x"ed2802d0"; -- ldi r5, 0x5a;;
+                               when "00000000100" => data_out <= x"ed008058"; -- ldi r0, 0x100b;;
+                               when "00000001000" => data_out <= x"e7a80000"; -- stw r5, 0(r0);;
+                               when others => data_out <= x"07a80000";
+                       end case;
                        
                        if wr_en = '1' then
                                ram(to_integer(UNSIGNED(wr_addr))) <= data_in;