Implement LD r, $nn

2021-02-20 15:56:22 +00:00
parent 7327ecffb9
commit 67361093ec
5 changed files with 41 additions and 19 deletions
--- a/rtl/cpu/cpu_pkg.svh
+++ b/rtl/cpu/cpu_pkg.svh
@@ -48,7 +48,8 @@ package cpu_pkg;
        ALU_OP_XOR = 4'h05,
        ALU_OP_OR  = 4'h06,
        ALU_OP_CP  = 4'h07,
-        ALU_OP_BIT = 4'h08
+        ALU_OP_BIT = 4'h08,
+        ALU_OP_NOP = 4'h09
    } alu_op_t;

    typedef enum logic [1:0] {
@@ -66,8 +67,10 @@ package cpu_pkg;
    } op_src_t;

    typedef enum {
+        OP_DEST_A,
        OP_DEST_REG8,
-        OP_DEST_REG16
+        OP_DEST_REG16,
+        OP_DEST_MEMORY
    } op_dest_t;

    typedef enum {