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/*

 *  linux/asm-arm/proc-armo/assembler.h

 *

 *  Copyright (C) 1996 Russell King

 *

 * 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.

 *

 *  This file contains arm architecture specific defines

 *  for the different processors

 */

#define MODE_USR        USR26_MODE

#define MODE_FIQ        FIQ26_MODE

#define MODE_IRQ        IRQ26_MODE

#define MODE_SVC        SVC26_MODE

#define DEFAULT_FIQ     MODE_FIQ

#ifdef __STDC__

#define LOADREGS(cond, base, reglist...)\

        ldm##cond       base,reglist^

#define RETINSTR(instr, regs...)\

        instr##s        regs

#else

#define LOADREGS(cond, base, reglist...)\

        ldm/**/cond     base,reglist^

#define RETINSTR(instr, regs...)\

        instr/**/s      regs

#endif

#define MODENOP\

        mov     r0, r0

#define MODE(savereg,tmpreg,mode) \

        mov     savereg, pc; \

        bic     tmpreg, savereg, $0x0c000003; \

        orr     tmpreg, tmpreg, $mode; \

        teqp    tmpreg, $0

#define RESTOREMODE(savereg) \

        teqp    savereg, $0

#define SAVEIRQS(tmpreg)

#define RESTOREIRQS(tmpreg)

#define DISABLEIRQS(tmpreg)\

        teqp    pc, $0x08000003

#define ENABLEIRQS(tmpreg)\

        teqp    pc, $0x00000003

#define USERMODE(tmpreg)\

        teqp    pc, $0x00000000;\

        mov     r0, r0

#define SVCMODE(tmpreg)\

        teqp    pc, $0x00000003;\

        mov     r0, r0

/*

 * Save the current IRQ state and disable IRQs

 * Note that this macro assumes FIQs are enabled, and

 * that the processor is in SVC mode.

 */

        .macro  save_and_disable_irqs, oldcpsr, temp

  mov \oldcpsr, pc

  orr \temp, \oldcpsr, #0x08000000

  teqp \temp, #0

  .endm

/*

 * Restore interrupt state previously stored in

 * a register

 * ** Actually do nothing on Arc - hope that the caller uses a MOVS PC soon

 * after!

 */

        .macro  restore_irqs, oldcpsr

  @ This be restore_irqs

  .endm

/*

 * These two are used to save LR/restore PC over a user-based access.

 * The old 26-bit architecture requires that we do.  On 32-bit

 * architecture, we can safely ignore this requirement.

 */

        .macro  save_lr

        str     lr, [sp, #-4]!

        .endm

        .macro  restore_pc

        ldmfd   sp!, {pc}^

        .endm

#define USER(x...)                              \

9999:   x;                                      \

        .section __ex_table,"a";                \

        .align  3;                              \

        .long   9999b,9001f;                    \

        .previous