decode: Add a facility field to the instruction decode tables

[microwatt.git] / decode_types.vhdl

diff --git a/decode_types.vhdl b/decode_types.vhdl
index 1713e0bfe1a1795ab7b1af172206ec49b1e5113b..02790a61fe560d8b73422357ea7899dd42f277d7 100644 (file)
--- a/decode_types.vhdl
+++ b/decode_types.vhdl
@@ -11,7 +11,6 @@ package decode_types is
                          OP_FPOP, OP_FPOP_I,
                          OP_ICBI, OP_ICBT, OP_ISEL, OP_ISYNC,
                         OP_LOAD, OP_STORE,
-                         OP_FPLOAD, OP_FPSTORE,
                         OP_MCRXRX, OP_MFCR, OP_MFMSR, OP_MFSPR, OP_MOD,
                         OP_MTCRF, OP_MTMSRD, OP_MTSPR, OP_MUL_L64,
                         OP_MUL_H64, OP_MUL_H32, OP_OR,
@@ -50,6 +49,7 @@ package decode_types is
     constant TOO_OFFSET : integer := 0;
 
     type unit_t is (NONE, ALU, LDST, FPU);
+    type facility_t is (NONE, FPU);
     type length_t is (NONE, is1B, is2B, is4B, is8B);
 
     type repeat_t is (NONE,      -- instruction is not repeated
@@ -58,6 +58,7 @@ package decode_types is
 
     type decode_rom_t is record
        unit         : unit_t;
+        facility     : facility_t;
        insn_type    : insn_type_t;
        input_reg_a  : input_reg_a_t;
        input_reg_b  : input_reg_b_t;
@@ -89,7 +90,7 @@ package decode_types is
        sgl_pipe     : std_ulogic;
         repeat       : repeat_t;
     end record;
-    constant decode_rom_init : decode_rom_t := (unit => NONE,
+    constant decode_rom_init : decode_rom_t := (unit => NONE, facility => NONE,
                                                insn_type => OP_ILLEGAL, input_reg_a => NONE,
                                                input_reg_b => NONE, input_reg_c => NONE,
                                                output_reg_a => NONE, input_cr => '0', output_cr => '0',