From 1eb8d8a1947f2db86a1dc4d627e357fe729f9a41 Mon Sep 17 00:00:00 2001
From: Ben Avison <bavison@gitlab.riscosopen.org>
Date: Tue, 16 Jun 2009 00:41:57 +0000
Subject: [PATCH] Build fix
Detail:
Defines UXTH and SXTH as macros. This means we can assemble the output of
cc -S -cpu 6 even using current versions of objasm that are limited to the
v5TEJ instruction set. It is expected that objasm will ignore these macros
if/when it gains v6 instruction set support.
Admin:
Tested - it works.
---
Sources/SprExtend | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Sources/SprExtend b/Sources/SprExtend
index 6fa6fb7..cfa9469 100644
--- a/Sources/SprExtend
+++ b/Sources/SprExtend
@@ -402,6 +402,19 @@ file SETL {FALSE}
nbuffers * 8 ; number of code buffers to use
]
+ ; Enable use of cc -cpu 6 with an old version of objasm
+ ; If your objasm understands v6 opcodes, it will ignore these macros
+ ; Note the 3rd parameter is not implemented yet (not currently needed)
+ MACRO
+$lab SXTH $rd,$rm
+$lab DCI &E6BF0070 :OR: ($rd :SHL: 12) :OR: $rm
+ MEND
+
+ MACRO
+$lab UXTH $rd,$rm
+$lab DCI &E6FF0070 :OR: ($rd :SHL: 12) :OR: $rm
+ MEND
+
; ----------------------------------------------------------------------------
ASSERT (.=Module_BaseAddr)
--
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