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+
+-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the
+-- Free Software Foundation; either version 2 of the License, or (at
+-- your option) any later version.
+
+-- VESTs is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+
+-- You should have received a copy of the GNU General Public License
+-- along with VESTs; if not, write to the Free Software Foundation,
+-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+entity inline_08 is
+
+end entity inline_08;
+
+
+----------------------------------------------------------------
+
+
+architecture test of inline_08 is
+begin
+
+ process_2_c : process is
+
+ -- code from book:
+
+ type opcodes is
+ (nop, add, subtract, load, store, jump, jumpsub, branch, halt);
+
+ subtype control_transfer_opcodes is opcodes range jump to branch;
+
+ -- end of code from book
+
+ variable opcode : opcodes;
+ variable operand : integer;
+ constant memory_operand : integer := 1;
+ constant address_operand : integer := 2;
+
+ begin
+
+ for i in opcodes loop
+ opcode := i;
+
+ -- code from book:
+
+ case opcode is
+ when load | add | subtract =>
+ operand := memory_operand;
+ when store | jump | jumpsub | branch =>
+ operand := address_operand;
+ when others =>
+ operand := 0;
+ end case;
+
+ --
+
+ case opcode is
+ when add to load =>
+ operand := memory_operand;
+ when branch downto store =>
+ operand := address_operand;
+ when others =>
+ operand := 0;
+ end case;
+
+ -- end of code from book
+
+ case opcode is
+ when add to load =>
+ operand := memory_operand;
+ -- code from book:
+ when control_transfer_opcodes | store =>
+ operand := address_operand;
+ -- end of code from book
+ when others =>
+ operand := 0;
+ end case;
+
+ end loop;
+
+ wait;
+ end process process_2_c;
+
+
+end architecture test;