source: mainline/kernel/arch/arm32/src/context.S@ 86018c1

#
# Copyright (c) 2007 Petr Stepan
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.text   

.global context_save_arch
.global context_restore_arch

context_save_arch:
        stmfd sp!, {r1}
        mrs r1, cpsr
        and r1, r1, #0x1f
        stmia r0!, {r1}
        ldmfd sp!, {r1}

        stmia r0!, {sp, lr}
        stmia r0!, {r4-r11}

        mov r0, #1
        mov pc, lr


context_restore_arch:
        ldmia r0!, {r4}
        mrs r5, cpsr
        bic r5, r5, #0x1f
        orr r5, r5, r4
        msr cpsr_c, r5

        ldmia r0!, {sp, lr}
        ldmia r0!, {r4-r11}
        
        mov r0, #0
        mov pc, lr