Linux/Unix编程

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Unix_Linux

asmmacro.h：源码内容
							/*
 * 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_H
#define _ASM_ASMMACRO_H
#include <linux/config.h>
#include <asm/offset.h>
#ifdef CONFIG_CPU_SB1
#define FPU_ENABLE_HAZARD		
	.set    push;			
	.set	noreorder;		
	.set    mips2;			
	SSNOP;				
	bnezl   $0, .+4;		
	 SSNOP;				
	.set    pop
#else
#define FPU_ENABLE_HAZARD
#endif
	.macro	fpu_save_16even thread tmp
	cfc1	tmp, fcr31
	sdc1	$f2,  (THREAD_FPU + 0x010)(thread)
	sdc1	$f4,  (THREAD_FPU + 0x020)(thread)
	sdc1	$f6,  (THREAD_FPU + 0x030)(thread)
	sdc1	$f8,  (THREAD_FPU + 0x040)(thread)
	sdc1	$f10, (THREAD_FPU + 0x050)(thread)
	sdc1	$f12, (THREAD_FPU + 0x060)(thread)
	sdc1	$f14, (THREAD_FPU + 0x070)(thread)
	sdc1	$f16, (THREAD_FPU + 0x080)(thread)
	sdc1	$f18, (THREAD_FPU + 0x090)(thread)
	sdc1	$f20, (THREAD_FPU + 0x0a0)(thread)
	sdc1	$f22, (THREAD_FPU + 0x0b0)(thread)
	sdc1	$f24, (THREAD_FPU + 0x0c0)(thread)
	sdc1	$f26, (THREAD_FPU + 0x0d0)(thread)
	sdc1	$f28, (THREAD_FPU + 0x0e0)(thread)
	sdc1	$f30, (THREAD_FPU + 0x0f0)(thread)
	sw	tmp, (THREAD_FPU + 0x100)(thread)
	.endm
	.macro	fpu_save_16odd thread
	sdc1	$f1,  (THREAD_FPU + 0x08)(thread)
	sdc1	$f3,  (THREAD_FPU + 0x18)(thread)
	sdc1	$f5,  (THREAD_FPU + 0x28)(thread)
	sdc1	$f7,  (THREAD_FPU + 0x38)(thread)
	sdc1	$f9,  (THREAD_FPU + 0x48)(thread)
	sdc1	$f11, (THREAD_FPU + 0x58)(thread)
	sdc1	$f13, (THREAD_FPU + 0x68)(thread)
	sdc1	$f15, (THREAD_FPU + 0x78)(thread)
	sdc1	$f17, (THREAD_FPU + 0x88)(thread)
	sdc1	$f19, (THREAD_FPU + 0x98)(thread)
	sdc1	$f21, (THREAD_FPU + 0xa8)(thread)
	sdc1	$f23, (THREAD_FPU + 0xb8)(thread)
	sdc1	$f25, (THREAD_FPU + 0xc8)(thread)
	sdc1	$f27, (THREAD_FPU + 0xd8)(thread)
	sdc1	$f29, (THREAD_FPU + 0xe8)(thread)
	sdc1	$f31, (THREAD_FPU + 0xf8)(thread)
	.endm
	.macro	fpu_save thread tmp
	cfc1	tmp,  fcr31
	swc1	$f0,  (THREAD_FPU + 0x000)(thread)
	swc1	$f1,  (THREAD_FPU + 0x008)(thread)
	swc1	$f2,  (THREAD_FPU + 0x010)(thread)
	swc1	$f3,  (THREAD_FPU + 0x018)(thread)
	swc1	$f4,  (THREAD_FPU + 0x020)(thread)
	swc1	$f5,  (THREAD_FPU + 0x028)(thread)
	swc1	$f6,  (THREAD_FPU + 0x030)(thread)
	swc1	$f7,  (THREAD_FPU + 0x038)(thread)
	swc1	$f8,  (THREAD_FPU + 0x040)(thread)
	swc1	$f9,  (THREAD_FPU + 0x048)(thread)
	swc1	$f10, (THREAD_FPU + 0x050)(thread)
	swc1	$f11, (THREAD_FPU + 0x058)(thread)
	swc1	$f12, (THREAD_FPU + 0x060)(thread)
	swc1	$f13, (THREAD_FPU + 0x068)(thread)
	swc1	$f14, (THREAD_FPU + 0x070)(thread)
	swc1	$f15, (THREAD_FPU + 0x078)(thread)
	swc1	$f16, (THREAD_FPU + 0x080)(thread)
	swc1	$f17, (THREAD_FPU + 0x088)(thread)
	swc1	$f18, (THREAD_FPU + 0x090)(thread)
	swc1	$f19, (THREAD_FPU + 0x098)(thread)
	swc1	$f20, (THREAD_FPU + 0x0a0)(thread)
	swc1	$f21, (THREAD_FPU + 0x0a8)(thread)
	swc1	$f22, (THREAD_FPU + 0x0b0)(thread)
	swc1	$f23, (THREAD_FPU + 0x0b8)(thread)
	swc1	$f24, (THREAD_FPU + 0x0c0)(thread)
	swc1	$f25, (THREAD_FPU + 0x0c8)(thread)
	swc1	$f26, (THREAD_FPU + 0x0d0)(thread)
	swc1	$f27, (THREAD_FPU + 0x0d8)(thread)
	swc1	$f28, (THREAD_FPU + 0x0e0)(thread)
	swc1	$f29, (THREAD_FPU + 0x0e8)(thread)
	swc1	$f30, (THREAD_FPU + 0x0f0)(thread)
	swc1	$f31, (THREAD_FPU + 0x0f8)(thread)
	sw	tmp, (THREAD_FPU + 0x100)(thread)
	.endm
	.macro	fpu_restore_16even thread tmp
	lw	tmp, (THREAD_FPU + 0x100)(thread)
	ldc1	$f2,  (THREAD_FPU + 0x010)(thread)
	ldc1	$f4,  (THREAD_FPU + 0x020)(thread)
	ldc1	$f6,  (THREAD_FPU + 0x030)(thread)
	ldc1	$f8,  (THREAD_FPU + 0x040)(thread)
	ldc1	$f10, (THREAD_FPU + 0x050)(thread)
	ldc1	$f12, (THREAD_FPU + 0x060)(thread)
	ldc1	$f14, (THREAD_FPU + 0x070)(thread)
	ldc1	$f16, (THREAD_FPU + 0x080)(thread)
	ldc1	$f18, (THREAD_FPU + 0x090)(thread)
	ldc1	$f20, (THREAD_FPU + 0x0a0)(thread)
	ldc1	$f22, (THREAD_FPU + 0x0b0)(thread)
	ldc1	$f24, (THREAD_FPU + 0x0c0)(thread)
	ldc1	$f26, (THREAD_FPU + 0x0d0)(thread)
	ldc1	$f28, (THREAD_FPU + 0x0e0)(thread)
	ldc1	$f30, (THREAD_FPU + 0x0f0)(thread)
	ctc1	tmp,  fcr31
	.endm
	.macro	fpu_restore_16odd thread
	ldc1	$f1,  (THREAD_FPU + 0x08)(thread)
	ldc1	$f3,  (THREAD_FPU + 0x18)(thread)
	ldc1	$f5,  (THREAD_FPU + 0x28)(thread)
	ldc1	$f7,  (THREAD_FPU + 0x38)(thread)
	ldc1	$f9,  (THREAD_FPU + 0x48)(thread)
	ldc1	$f11, (THREAD_FPU + 0x58)(thread)
	ldc1	$f13, (THREAD_FPU + 0x68)(thread)
	ldc1	$f15, (THREAD_FPU + 0x78)(thread)
	ldc1	$f17, (THREAD_FPU + 0x88)(thread)
	ldc1	$f19, (THREAD_FPU + 0x98)(thread)
	ldc1	$f21, (THREAD_FPU + 0xa8)(thread)
	ldc1	$f23, (THREAD_FPU + 0xb8)(thread)
	ldc1	$f25, (THREAD_FPU + 0xc8)(thread)
	ldc1	$f27, (THREAD_FPU + 0xd8)(thread)
	ldc1	$f29, (THREAD_FPU + 0xe8)(thread)
	ldc1	$f31, (THREAD_FPU + 0xf8)(thread)
	.endm
	.macro	fpu_restore thread tmp
	lw	tmp, (THREAD_FPU + 0x100)(thread)
	lwc1	$f0,  (THREAD_FPU + 0x000)(thread)
	lwc1	$f1,  (THREAD_FPU + 0x008)(thread)
	lwc1	$f2,  (THREAD_FPU + 0x010)(thread)
	lwc1	$f3,  (THREAD_FPU + 0x018)(thread)
	lwc1	$f4,  (THREAD_FPU + 0x020)(thread)
	lwc1	$f5,  (THREAD_FPU + 0x028)(thread)
	lwc1	$f6,  (THREAD_FPU + 0x030)(thread)
	lwc1	$f7,  (THREAD_FPU + 0x038)(thread)
	lwc1	$f8,  (THREAD_FPU + 0x040)(thread)
	lwc1	$f9,  (THREAD_FPU + 0x048)(thread)
	lwc1	$f10, (THREAD_FPU + 0x050)(thread)
	lwc1	$f11, (THREAD_FPU + 0x058)(thread)
	lwc1	$f12, (THREAD_FPU + 0x060)(thread)
	lwc1	$f13, (THREAD_FPU + 0x068)(thread)
	lwc1	$f14, (THREAD_FPU + 0x070)(thread)
	lwc1	$f15, (THREAD_FPU + 0x078)(thread)
	lwc1	$f16, (THREAD_FPU + 0x080)(thread)
	lwc1	$f17, (THREAD_FPU + 0x088)(thread)
	lwc1	$f18, (THREAD_FPU + 0x090)(thread)
	lwc1	$f19, (THREAD_FPU + 0x098)(thread)
	lwc1	$f20, (THREAD_FPU + 0x0a0)(thread)
	lwc1	$f21, (THREAD_FPU + 0x0a8)(thread)
	lwc1	$f22, (THREAD_FPU + 0x0b0)(thread)
	lwc1	$f23, (THREAD_FPU + 0x0b8)(thread)
	lwc1	$f24, (THREAD_FPU + 0x0c0)(thread)
	lwc1	$f25, (THREAD_FPU + 0x0c8)(thread)
	lwc1	$f26, (THREAD_FPU + 0x0d0)(thread)
	lwc1	$f27, (THREAD_FPU + 0x0d8)(thread)
	lwc1	$f28, (THREAD_FPU + 0x0e0)(thread)
	lwc1	$f29, (THREAD_FPU + 0x0e8)(thread)
	lwc1	$f30, (THREAD_FPU + 0x0f0)(thread)
	lwc1	$f31, (THREAD_FPU + 0x0f8)(thread)
	ctc1	tmp,  fcr31
	.endm
	.macro	cpu_save_nonscratch thread
	sd	s0, THREAD_REG16(thread)
	sd	s1, THREAD_REG17(thread)
	sd	s2, THREAD_REG18(thread)
	sd	s3, THREAD_REG19(thread)
	sd	s4, THREAD_REG20(thread)
	sd	s5, THREAD_REG21(thread)
	sd	s6, THREAD_REG22(thread)
	sd	s7, THREAD_REG23(thread)
	sd	sp, THREAD_REG29(thread)
	sd	fp, THREAD_REG30(thread)
	.endm
	.macro	cpu_restore_nonscratch thread
	ld	s0, THREAD_REG16(thread)
	ld	s1, THREAD_REG17(thread)
	ld	s2, THREAD_REG18(thread)
	ld	s3, THREAD_REG19(thread)
	ld	s4, THREAD_REG20(thread)
	ld	s5, THREAD_REG21(thread)
	ld	s6, THREAD_REG22(thread)
	ld	s7, THREAD_REG23(thread)
	ld	sp, THREAD_REG29(thread)
	ld	fp, THREAD_REG30(thread)
	ld	ra, THREAD_REG31(thread)
	.endm
#endif /* !(_ASM_ASMMACRO_H) */

						