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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-08-11 21:52:06 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-08-11 21:52:06 +0000
commitee5110762eaf110b05a18ab33c7ae6e617a35ed9 (patch)
tree77c472fbeb224bcedb39f20cf5369ff1f5ad3293 /cpukit/score/cpu/or16/asm.h
parentdd19c0bb061af5595a970ed3c4f4af3824b65593 (diff)
downloadrtems-ee5110762eaf110b05a18ab33c7ae6e617a35ed9.tar.bz2
2000-08-11 Joel Sherrill <joel@OARcorp.com>
* Shell added for or16 port based on no_cpu port with names replaced.
Diffstat (limited to 'cpukit/score/cpu/or16/asm.h')
-rw-r--r--cpukit/score/cpu/or16/asm.h101
1 files changed, 101 insertions, 0 deletions
diff --git a/cpukit/score/cpu/or16/asm.h b/cpukit/score/cpu/or16/asm.h
new file mode 100644
index 0000000000..6970e6a5fc
--- /dev/null
+++ b/cpukit/score/cpu/or16/asm.h
@@ -0,0 +1,101 @@
+/* asm.h
+ *
+ * This include file attempts to address the problems
+ * caused by incompatible flavors of assemblers and
+ * toolsets. It primarily addresses variations in the
+ * use of leading underscores on symbols and the requirement
+ * that register names be preceded by a %.
+ *
+ *
+ * NOTE: The spacing in the use of these macros
+ * is critical to them working as advertised.
+ *
+ * COPYRIGHT:
+ *
+ * This file is based on similar code found in newlib available
+ * from ftp.cygnus.com. The file which was used had no copyright
+ * notice. This file is freely distributable as long as the source
+ * of the file is noted. This file is:
+ *
+ * COPYRIGHT (c) 1994-1997.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * $Id$
+ */
+
+#ifndef __OR16_ASM_h
+#define __OR16_ASM_h
+
+/*
+ * Indicate we are in an assembly file and get the basic CPU definitions.
+ */
+
+#ifndef ASM
+#define ASM
+#endif
+#include <rtems/score/cpuopts.h>
+#include <rtems/score/or16.h>
+
+/*
+ * Recent versions of GNU cpp define variables which indicate the
+ * need for underscores and percents. If not using GNU cpp or
+ * the version does not support this, then you will obviously
+ * have to define these as appropriate.
+ */
+
+#ifndef __USER_LABEL_PREFIX__
+#define __USER_LABEL_PREFIX__ _
+#endif
+
+#ifndef __REGISTER_PREFIX__
+#define __REGISTER_PREFIX__
+#endif
+
+/* ANSI concatenation macros. */
+
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+
+/* Use the right prefix for global labels. */
+
+#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
+
+/* Use the right prefix for registers. */
+
+#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
+
+/*
+ * define macros for all of the registers on this CPU
+ *
+ * EXAMPLE: #define d0 REG (d0)
+ */
+
+/*
+ * Define macros to handle section beginning and ends.
+ */
+
+
+#define BEGIN_CODE_DCL .text
+#define END_CODE_DCL
+#define BEGIN_DATA_DCL .data
+#define END_DATA_DCL
+#define BEGIN_CODE .text
+#define END_CODE
+#define BEGIN_DATA
+#define END_DATA
+#define BEGIN_BSS
+#define END_BSS
+#define END
+
+/*
+ * Following must be tailor for a particular flavor of the C compiler.
+ * They may need to put underscores in front of the symbols.
+ */
+
+#define PUBLIC(sym) .globl SYM (sym)
+#define EXTERN(sym) .globl SYM (sym)
+
+#endif
+/* end of include file */
+
+