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#ifndef __ASM_SH64_REGISTERS_H

#define __ASM_SH64_REGISTERS_H

/*

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 *

 * include/asm-sh64/registers.h

 *

 * Copyright (C) 2000, 2001  Paolo Alberelli

 *

 */

#ifdef __ASSEMBLY__

/* =====================================================================

**

** Section 1: acts on assembly sources pre-processed by GPP ( <source.S>).

**            Assigns symbolic names to control & target registers.

*/

/*

 * Concerning registers name, the assembly sources follows the

 * CDC naming convention.

 * This section converts CDC registers names into RedHat style.

 */

/*

 * Control Registers.

 */

#define SR      cr0

#define SSR     cr1

#define PSSR    cr2

                        /* cr3 UNDEFINED */

#define INTEVT  cr4

#define EXPEVT  cr5

#define PEXPEVT cr6

#define TRA     cr7

#define SPC     cr8

#define PSPC    cr9

#define RESVEC  cr10

#define VBR     cr11

                        /* cr12 UNDEFINED */

#define TEA     cr13

                        /* cr14-cr15 UNDEFINED */

#define DCR     cr16

#define KCR0    cr17

#define KCR1    cr18

                        /* cr19-cr31 UNDEFINED */

                        /* cr32-cr61 RESERVED */

#define CTC     cr62

#define USR     cr63

/*

 * ABI dependent registers (general purpose set)

 * Note: this set of registers name could be shared by the

 *       CDC and RedHat toolchain

 */

#define RET     r2

#define ARG1    r2

#define ARG2    r3

#define ARG3    r4

#define ARG4    r5

#define ARG5    r6

#define ARG6    r7

#define FBP     r14

#define SP      r15

#define GVDT    r26

#define GCDT    r27

#define LINK    r18

#define OS      r40

#define ZERO    r63

/*

 * Target registers need name convertion...

 * (defines only those used by assembly code)

 */

#define t0      tr0

#define t1      tr1

#define t2      tr2

#define t3      tr3

#define t4      tr4

#define t5      tr5

#define t6      tr6

#define t7      tr7

/*

** RedHat style compatibility macros:

**

**   _loada: loads the address the address  of the symbol (first

**           argument) into the general purpose register (second

**           argument)

*/

        .macro  _loada   symbol, gp_reg

         movi   \symbol, \gp_reg

        .endm

        .macro  _ptar    symbol, tr_reg

         pt     \symbol, \tr_reg

        .endm

        .macro  _ptaru   symbol, tr_reg

         pt/u   \symbol, \tr_reg

        .endm

        .macro  _pta    disp_b,  tr_reg

         pta    $+\disp_b, \tr_reg

        .endm

/*

 * Status register defines: used only by assembly sources (and

 *                          syntax independednt)

 */

#define SR_RESET_VAL    0x0000000050008000

#define SR_HARMLESS     0x00000000500080f0      /* Write ignores for most */

#define SR_ENABLE_FPU   0xffffffffffff7fff      /* AND with this */

#ifdef ST_DEBUG

#define SR_ENABLE_MMU   0x0000000084000000      /* OR with this */

#else

#define SR_ENABLE_MMU   0x0000000080000000      /* OR with this */

#endif

#define SR_UNBLOCK_EXC  0xffffffffefffffff      /* AND with this */

#define SR_BLOCK_EXC    0x0000000010000000      /* OR with this */

#else   /* Not __ASSEMBLY__ syntax */

/* =====================================================================

**

** Section 2: this is required to manage __asm__ statement expanded

**            by "C" compiler

*/

        /*

        ** RedHat style symbolic address resolution inside "asm" blocks

        */

        asm ("\t.macro  _loada   symbol, gp_reg\n"

             "\tmovi    \\symbol, \\gp_reg\n"

             "\t.endm\n"

             "\n"

             "\t.macro  _ptar    symbol, tr_reg\n"

             "\tpt      \\symbol, \\tr_reg\n"

             "\t.endm\n"

             "\n"

             "\t.macro  _pta    disp_b, tr_reg\n"

             "\tpta     $+\\disp_b, \\tr_reg\n"

             "\t.endm\n"

             "\n"

             "\t.macro  _fgetscr  f_reg63\n"

             "\tfgetscr \\f_reg63\n"

             "\t.endm\n"

             "\n"

             "\t.macro  _fputscr  f_reg63\n"

             "\tfputscr \\f_reg63\n"

             "\t.endm\n"

             "\n"

            );

        /*

        ** RedHat style target register name inside "asm" blocks

        */

#       define __t0     __str(tr0)

#       define __t1     __str(tr1)

#       define __t2     __str(tr2)

#       define __t3     __str(tr3)

#       define __t4     __str(tr4)

#       define __t5     __str(tr5)

#       define __t6     __str(tr6)

#       define __t7     __str(tr7)

        /*

        ** RedHat style control register name inside "asm" blocks

        */

#       define __c0     __str(cr0)              /* SR       */

#       define __c1     __str(cr1)              /* SSR      */

#       define __c2     __str(cr2)              /* PSSR     */

#       define __c4     __str(cr4)              /* INTEVT   */

#       define __c5     __str(cr5)              /* EXPEVT   */

#       define __c6     __str(cr6)              /* PEXPEVT  */

#       define __c8     __str(cr8)              /* SPC      */

#       define __c9     __str(cr9)              /* PSPC     */

#       define __c13    __str(cr13)             /* TEA      */

#       define __c17    __str(cr17)             /* KCR0     */

#       define __c18    __str(cr18)             /* KCR1     */

        /*

        ** RedHat style float and double register name inside "asm" blocks

        ** defines below are used only in .../arch/sh5/kernel/fpu.c

        */

#       define __f(x)   __str(fr##x)

#       define __p(x)   __str(fp##x)

#       define __d(x)   __str(dr##x)

        /*

        ** Stringify reg. name (common for CDC & RedHat)

        */

#       define __str(x)  #x

#endif /* __ASSEMBLY__ */

#endif /* __ASM_SH64_REGISTERS_H */