Release 4.14 arch/unicore32/include/asm/assembler.h

/*
 * linux/arch/unicore32/include/asm/assembler.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 *  Do not include any C declarations in this file - it is included by
 *  assembler source.
 */
#ifndef __ASSEMBLY__
#error "Only include this from assembly code"
#endif

#include <asm/ptrace.h>

/*
 * Little Endian independent macros for shifting bytes within registers.
 */

#define pull            >>

#define push            <<

#define get_byte_0      << #0

#define get_byte_1	>> #8

#define get_byte_2	>> #16

#define get_byte_3	>> #24

#define put_byte_0      << #0

#define put_byte_1	<< #8

#define put_byte_2	<< #16

#define put_byte_3	<< #24


#define cadd		cmpadd

#define cand		cmpand

#define csub		cmpsub

#define cxor		cmpxor

/*
 * Enable and disable interrupts
 */
	.macro disable_irq, temp
	
mov	\temp, asr
	

andn     \temp, \temp, #0xFF
	

or	\temp, \temp, #PSR_I_BIT | PRIV_MODE
	mov.a	asr, \temp
	.endm

	.macro enable_irq, temp
	
mov	\temp, asr
	

andn     \temp, \temp, #0xFF
	

or	\temp, \temp, #PRIV_MODE
	mov.a	asr, \temp
	.endm


#define USER(x...)				\
9999:   x;                                      \
        .pushsection __ex_table, "a";           \
        .align  3;                              \
        .long   9999b, 9001f;                   \
        .popsection

	

.macro	notcond, cond, nexti = .+8
	.ifc	\cond, eq
		bne	\nexti
	.else;	.ifc	\cond, ne
		beq	\nexti
	.else;	.ifc	\cond, ea
		bub	\nexti
	.else;	.ifc	\cond, ub
		bea	\nexti
	.else;	.ifc	\cond, fs
		bns	\nexti
	.else;	.ifc	\cond, ns
		bfs	\nexti
	.else;	.ifc	\cond, fv
		bnv	\nexti
	.else;	.ifc	\cond, nv
		bfv	\nexti
	.else;	.ifc	\cond, ua
		beb	\nexti
	.else;	.ifc	\cond, eb
		bua	\nexti
	.else;	.ifc	\cond, eg
		bsl	\nexti
	.else;	.ifc	\cond, sl
		beg	\nexti
	.else;	.ifc	\cond, sg
		bel	\nexti
	.else;	.ifc	\cond, el
		bsg	\nexti
	.else;	.ifnc	\cond, al
		.error  "Unknown cond in notcond macro argument"
	.endif;	.endif;	.endif;	.endif;	.endif;	.endif;	.endif
	.endif;	.endif;	.endif;	.endif;	.endif;	.endif;	.endif
	.endif
	.endm

	





.macro	usracc, instr, reg, ptr, inc, cond, rept, abort
	.rept	\rept
	notcond	\cond, .+8
9999 :
	.if      \inc == 1
        \instr\()b.u \reg, [\ptr], #\inc
	.elseif	\inc == 4
	\instr\()w.u \reg, [\ptr], #\inc
	.else
	.error	"Unsupported inc macro argument"
	.endif

	.pushsection __ex_table, "a"
	.align	3
	.long	9999b, \abort
	.popsection
	.endr
	.endm

	





.macro	strusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
	




usracc	st, \reg, \ptr, \inc, \cond, \rept, \abort
	.endm

	





.macro	ldrusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
	




usracc	ld, \reg, \ptr, \inc, \cond, \rept, \abort
	.endm

	.macro	nop8
	.rept	8
		nop
	.endr
	.endm
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Guan Xuetao
583
100.00%
1
100.00%
Total
583
100.00%
1
100.00%
Directory: arch/unicore32/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.