5 abgabe finish

diff --git a/cpu/src/r_w_ram_b.vhd b/cpu/src/r_w_ram_b.vhd
index 1c8b21209708acf65e31297b7a2629941c5ad074..7962706065a70e3c1d16a668b292ddb4c19c4aff 100644 (file)
--- a/cpu/src/r_w_ram_b.vhd
+++ b/cpu/src/r_w_ram_b.vhd
@@ -10,26 +10,28 @@ architecture behaviour of r_w_ram is
        subtype RAM_ENTRY_TYPE is std_logic_vector(DATA_WIDTH -1 downto 0);
        type RAM_TYPE is array (0 to (2**ADDR_WIDTH)-1) of RAM_ENTRY_TYPE;
        
-       signal ram : RAM_TYPE := (  0 => "11100000000100001000000000000000", --add r2, r1, r0
-                                   1 => "11100000000110001000000000000000", --add r3, r1, r0
-                                   2 => "11100000001000011001000000000000", --add r4, r3, r2
-                                   3 => "11100000000100001000000000000000", --add r2, r1, r0
-                                   4 => "11100000000110001000000000000000", --add r3, r1, r0
-                                   5 => "11100000001000011001000000000000", --add r4, r3, r2
-                                   6 => "11101100000000001000000000000000", --cmp r0 , r1 
-                                   7 => "00000000001010101010000000000001", --addnqd r5, r5, r4
-                                   8 => "00000000001010101010000000000000", --addnq r5, r5, r4
-                                   9 => "11101100001000100000000000000000", --cmp r4 , r4 
-                                  10 => "00000001001100001000000001010000", --addinq r5, r1, 10
-                                  11 => "00010001001100001000000001010000", --addieq r5, r1, 10 
-                                  12 => "00010001101100110000000001010000", --subieq r5, r5, 10
-                                  13 => "11100000000100001000000000000000", --add r2, r1, r0
-                                  14 => "11100010000100001000000000000000", --and r2, r1, r0
-                                  15 => "11101100000000001000000000000000", --cmp r0 , r1 
-                                  16 => "10000000001010101010000000000001", --addabd r5, r5, r4
-                                  17 => "10110011101110001000010000110001", --orxltd r7, 1086
-                                  18 => "10110101001110001000010000000001", --shiftltd r7, r1, 1
-                                  19 => "01010101001110001000100000000001", --shiftltd r7, r1, 2
+                                                                       -- r0 = 0, r1 = 1, r2 = 3, r3 = A
+
+       signal ram : RAM_TYPE := (  0 => "11100000000100001000000000000000", --add r2, r1, r0    => r2 = 1
+                                   1 => "11100000000110001000000000000000", --add r3, r1, r0    => r3 = 1
+                                   2 => "11100000001000011001000000000000", --add r4, r3, r2    => r4 = 2
+                                   3 => "11100000000100001000000000000000", --add r2, r1, r0    => r2 = 1
+                                   4 => "11100000000110001000000000000000", --add r3, r1, r0    => r3 = 1
+                                   5 => "11100000001000011001000000000000", --add r4, r3, r2    => r4 = 2
+                                   6 => "11101100000000001000000000000000", --cmp r0 , r1       => 0-1 => 0100
+                                   7 => "00000000001010101010000000000001", --addnqd r5, r5, r4 => r5 = 2
+                                   8 => "00000000001010101010000000000000", --addnq r5, r5, r4  => r5 = 4
+                                   9 => "11101100001000100000000000000000", --cmp r4 , r4       => 2-2 => 1001
+                                  10 => "00000001001100001000000001010000", --addinq r6, r1, 0xA => nix
+                                  11 => "00010001001100001000000001010000", --addieq r6, r1, 0xA => r6 = 0xB
+                                  12 => "00010001101100110000000001010000", --subieq r6, r5, 0xA => r6 = 1
+                                  13 => "11100000000100001000000000000000", --add r2, r1, r0     => r2 = 1
+                                  14 => "11100010000100001000000000000000", --and r2, r1, r0     => r2 = 0
+                                  15 => "11101100000000001000000000000000", --cmp r0 , r1        => 0-1 => 0100
+                                  16 => "10000000001010101010000000000001", --addabd r5, r5, r4  => r5 = 6
+                                  17 => "10110011101110001000010000110001", --orxltd r7, 1086    => r7 = 1086
+                                  18 => "10110101001110001000010000000001", --shiftltd r7, r1, 1 => r7 = 2
+                                  19 => "01010101001110001000100000000001", --shiftltd r7, r1, 2 => r7 = 4
                                  others => x"F0000000");