From d15276557c65de2a1941632ec9024dea261cce26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benedikt=20B=C3=B6hm?= <bb@xnull.de>
Date: Tue, 7 Jul 2009 09:46:27 +0200
Subject: make instruction 64-bit wide to support more than 32 registers

---
 src/emu/opc.h | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

(limited to 'src/emu/opc.h')

diff --git a/src/emu/opc.h b/src/emu/opc.h
index 179f7b2..8720958 100644
--- a/src/emu/opc.h
+++ b/src/emu/opc.h
@@ -7,17 +7,17 @@
  * ---------------------
  *
  *  arithmetic:
- *     |000|xxx|aaaaa|bbbbb|ccccc|00000000000|
+ *     |000|xxx|aaaaaaaaaaaaa|bbbbbbbbbbbbb|ccccccccccccc|0000000000000000000|
  *  logic:
- *     |001|xxx|aaaaa|bbbbb|ccccc|00000000000|
+ *     |001|xxx|aaaaaaaaaaaaa|bbbbbbbbbbbbb|ccccccccccccc|0000000000000000000|
  *  comparison:
- *     |010|xxx|aaaaa|bbbbb|0000000000000000|
+ *     |010|xxx|aaaaaaaaaaaaa|bbbbbbbbbbbbb|00000000000000000000000000000000|
  *  load & store:
- *     |011|xxx|aaaaa|bbbbb|cccccccccccccccc|
+ *     |011|xxx|aaaaaaaaaaaaa|bbbbbbbbbbbbb|cccccccccccccccccccccccccccccccc|
  *  jump:
- *     |100|xxx|aaaaa|00000|cccccccccccccccc|
+ *     |100|xxx|aaaaaaaaaaaaa|0000000000000|cccccccccccccccccccccccccccccccc|
  *  misc:
- *     |111|xxx|??????????????????????????|
+ *     |111|xxx|??????????????????????????????????????????????????????????|
  *
  */
 
@@ -57,8 +57,11 @@
 /* misc */
 #define OPC_SYS  070
 
+/* one instruction is 64 bit */
+typedef uint64_t inst_t;
+
 /* conversion functions */
-uint32_t mnemonic2opc(const char *mnemonic);
-const char *opc2mnemonic(uint32_t IR);
+inst_t mnemonic2opc(const char *mnemonic);
+const char *opc2mnemonic(inst_t IR);
 
 #endif
-- 
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