From 5532553209555c0a5a3c11206ff16192dd465160 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Thu, 29 Jun 2000 23:00:48 +0000 Subject: This is the initial addition of the port of RTEMS to the Hitachi H8 family. This port was done by Philip Quaife of Q Solutions and sponsored by Comnet Technologies Ltd. The port was done based on RTEMS 3.5.1 to a Hitach H8300H. The port was updated to RTEMS 4.5 style Makefiles/configure by Joel Sherrill . While doing this Joel added support for the h8300-rtems to binutils, gcc, newlib, and gdb. NOTE: Philip submitted a BSP for a Hitachi evaluation board which is being merged as a separate entity. --- cpukit/score/cpu/h8300/asm.h | 123 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 cpukit/score/cpu/h8300/asm.h (limited to 'cpukit/score/cpu/h8300/asm.h') diff --git a/cpukit/score/cpu/h8300/asm.h b/cpukit/score/cpu/h8300/asm.h new file mode 100644 index 0000000000..ecd858f968 --- /dev/null +++ b/cpukit/score/cpu/h8300/asm.h @@ -0,0 +1,123 @@ +/* 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) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#ifndef __H8300_CPU_ASM_h +#define __H8300_CPU_ASM_h + +/* + * Indicate we are in an assembly file and get the basic CPU definitions. + */ + +#define ASM +#include + +/* + * 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 r0 REG(r0) +#define r1 REG(r1) +#define r2 REG(r2) +#define r3 REG(r3) +#define r4 REG(r4) +#define r5 REG(r5) +#define r6 REG(r6) +#define r7 REG(r7) + +#define er0 REG(er0) +#define er1 REG(er1) +#define er2 REG(er2) +#define er3 REG(er3) +#define er4 REG(er4) +#define er5 REG(er5) +#define er6 REG(er6) +#define er7 REG(er7) + +#define sp REG(sp) + +/* + * 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 asm ( ".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 */ + + asm( \".h8300h\" ); + -- cgit v1.2.3