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asmmacro-64.h

/*
 * asmmacro.h: Assembler macros to make things easier to read.
 *
 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
 * Copyright (C) 1998, 1999 Ralf Baechle
 * Copyright (C) 1999 Silicon Graphics, Inc.
 */
#ifndef _ASM_ASMMACRO_64_H
#define _ASM_ASMMACRO_64_H

#include <asm/asm-offsets.h>
#include <asm/regdef.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>

      .macro      fpu_save_16even thread tmp=t0
      cfc1  \tmp, fcr31
      sdc1  $f0,  THREAD_FPR0(\thread)
      sdc1  $f2,  THREAD_FPR2(\thread)
      sdc1  $f4,  THREAD_FPR4(\thread)
      sdc1  $f6,  THREAD_FPR6(\thread)
      sdc1  $f8,  THREAD_FPR8(\thread)
      sdc1  $f10, THREAD_FPR10(\thread)
      sdc1  $f12, THREAD_FPR12(\thread)
      sdc1  $f14, THREAD_FPR14(\thread)
      sdc1  $f16, THREAD_FPR16(\thread)
      sdc1  $f18, THREAD_FPR18(\thread)
      sdc1  $f20, THREAD_FPR20(\thread)
      sdc1  $f22, THREAD_FPR22(\thread)
      sdc1  $f24, THREAD_FPR24(\thread)
      sdc1  $f26, THREAD_FPR26(\thread)
      sdc1  $f28, THREAD_FPR28(\thread)
      sdc1  $f30, THREAD_FPR30(\thread)
      sw    \tmp, THREAD_FCR31(\thread)
      .endm

      .macro      fpu_save_16odd thread
      sdc1  $f1,  THREAD_FPR1(\thread)
      sdc1  $f3,  THREAD_FPR3(\thread)
      sdc1  $f5,  THREAD_FPR5(\thread)
      sdc1  $f7,  THREAD_FPR7(\thread)
      sdc1  $f9,  THREAD_FPR9(\thread)
      sdc1  $f11, THREAD_FPR11(\thread)
      sdc1  $f13, THREAD_FPR13(\thread)
      sdc1  $f15, THREAD_FPR15(\thread)
      sdc1  $f17, THREAD_FPR17(\thread)
      sdc1  $f19, THREAD_FPR19(\thread)
      sdc1  $f21, THREAD_FPR21(\thread)
      sdc1  $f23, THREAD_FPR23(\thread)
      sdc1  $f25, THREAD_FPR25(\thread)
      sdc1  $f27, THREAD_FPR27(\thread)
      sdc1  $f29, THREAD_FPR29(\thread)
      sdc1  $f31, THREAD_FPR31(\thread)
      .endm

      .macro      fpu_save_double thread status tmp
      sll   \tmp, \status, 5
      bgez  \tmp, 2f
      fpu_save_16odd \thread
2:
      fpu_save_16even \thread \tmp
      .endm

      .macro      fpu_restore_16even thread tmp=t0
      lw    \tmp, THREAD_FCR31(\thread)
      ldc1  $f0,  THREAD_FPR0(\thread)
      ldc1  $f2,  THREAD_FPR2(\thread)
      ldc1  $f4,  THREAD_FPR4(\thread)
      ldc1  $f6,  THREAD_FPR6(\thread)
      ldc1  $f8,  THREAD_FPR8(\thread)
      ldc1  $f10, THREAD_FPR10(\thread)
      ldc1  $f12, THREAD_FPR12(\thread)
      ldc1  $f14, THREAD_FPR14(\thread)
      ldc1  $f16, THREAD_FPR16(\thread)
      ldc1  $f18, THREAD_FPR18(\thread)
      ldc1  $f20, THREAD_FPR20(\thread)
      ldc1  $f22, THREAD_FPR22(\thread)
      ldc1  $f24, THREAD_FPR24(\thread)
      ldc1  $f26, THREAD_FPR26(\thread)
      ldc1  $f28, THREAD_FPR28(\thread)
      ldc1  $f30, THREAD_FPR30(\thread)
      ctc1  \tmp, fcr31
      .endm

      .macro      fpu_restore_16odd thread
      ldc1  $f1,  THREAD_FPR1(\thread)
      ldc1  $f3,  THREAD_FPR3(\thread)
      ldc1  $f5,  THREAD_FPR5(\thread)
      ldc1  $f7,  THREAD_FPR7(\thread)
      ldc1  $f9,  THREAD_FPR9(\thread)
      ldc1  $f11, THREAD_FPR11(\thread)
      ldc1  $f13, THREAD_FPR13(\thread)
      ldc1  $f15, THREAD_FPR15(\thread)
      ldc1  $f17, THREAD_FPR17(\thread)
      ldc1  $f19, THREAD_FPR19(\thread)
      ldc1  $f21, THREAD_FPR21(\thread)
      ldc1  $f23, THREAD_FPR23(\thread)
      ldc1  $f25, THREAD_FPR25(\thread)
      ldc1  $f27, THREAD_FPR27(\thread)
      ldc1  $f29, THREAD_FPR29(\thread)
      ldc1  $f31, THREAD_FPR31(\thread)
      .endm

      .macro      fpu_restore_double thread status tmp
      sll   \tmp, \status, 5
      bgez  \tmp, 1f                      # 16 register mode?

      fpu_restore_16odd \thread
1:    fpu_restore_16even \thread \tmp
      .endm

      .macro      cpu_save_nonscratch thread
      LONG_S      s0, THREAD_REG16(\thread)
      LONG_S      s1, THREAD_REG17(\thread)
      LONG_S      s2, THREAD_REG18(\thread)
      LONG_S      s3, THREAD_REG19(\thread)
      LONG_S      s4, THREAD_REG20(\thread)
      LONG_S      s5, THREAD_REG21(\thread)
      LONG_S      s6, THREAD_REG22(\thread)
      LONG_S      s7, THREAD_REG23(\thread)
      LONG_S      sp, THREAD_REG29(\thread)
      LONG_S      fp, THREAD_REG30(\thread)
      .endm

      .macro      cpu_restore_nonscratch thread
      LONG_L      s0, THREAD_REG16(\thread)
      LONG_L      s1, THREAD_REG17(\thread)
      LONG_L      s2, THREAD_REG18(\thread)
      LONG_L      s3, THREAD_REG19(\thread)
      LONG_L      s4, THREAD_REG20(\thread)
      LONG_L      s5, THREAD_REG21(\thread)
      LONG_L      s6, THREAD_REG22(\thread)
      LONG_L      s7, THREAD_REG23(\thread)
      LONG_L      sp, THREAD_REG29(\thread)
      LONG_L      fp, THREAD_REG30(\thread)
      LONG_L      ra, THREAD_REG31(\thread)
      .endm

#endif /* _ASM_ASMMACRO_64_H */

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