From db903c7481412f735d490ed2732ba3654c7bd2b2 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 19 Feb 1999 23:32:51 +0000 Subject: Moved asm.h back up in tree. --- cpukit/score/cpu/m68k/rtems/asm.h | 144 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 cpukit/score/cpu/m68k/rtems/asm.h (limited to 'cpukit/score/cpu/m68k/rtems/asm.h') diff --git a/cpukit/score/cpu/m68k/rtems/asm.h b/cpukit/score/cpu/m68k/rtems/asm.h new file mode 100644 index 0000000000..456b213cb2 --- /dev/null +++ b/cpukit/score/cpu/m68k/rtems/asm.h @@ -0,0 +1,144 @@ +/* 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 __M68k_ASM_h +#define __M68k_ASM_h + +/* + * Indicate we are in an assembly file and get the basic CPU definitions. + */ + +#ifndef ASM +#define ASM +#endif +#include +#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 d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define a7 REG (a7) +#define sp REG (sp) + +#define msp REG (msp) +#define usp REG (usp) +#define isp REG (isp) +#define sr REG (sr) +#define vbr REG (vbr) +#define dfc REG (dfc) +#define sfc REG (sfc) + +/* mcf52xx special regs */ +#define cacr REG (cacr) +#define acr0 REG (acr0) +#define acr1 REG (acr1) +#define rambar0 REG (rambar0) +#define mbar REG (mbar) + + +#define fp0 REG (fp0) +#define fp1 REG (fp1) +#define fp2 REG (fp2) +#define fp3 REG (fp3) +#define fp4 REG (fp4) +#define fp5 REG (fp5) +#define fp6 REG (fp6) +#define fp7 REG (fp7) + +#define fpc REG (fpc) +#define fpi REG (fpi) +#define fps REG (fps) +#define fpsr REG (fpsr) + + +/* + * 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 .data +#define END_DATA +#define BEGIN_BSS .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 */ + + -- cgit v1.2.3